From bf8d08532bc19a14cfb54ae61099dccadefca446 Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Fri, 10 Jun 2022 12:58:30 -0700 Subject: iomap: add support for dma aligned direct-io Use the address alignment requirements from the block_device for direct io instead of requiring addresses be aligned to the block size. Signed-off-by: Keith Busch Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20220610195830.3574005-12-kbusch@fb.com Signed-off-by: Jens Axboe --- fs/iomap/direct-io.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 370c3241618a..5d098adba443 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -242,7 +242,6 @@ static loff_t iomap_dio_bio_iter(const struct iomap_iter *iter, struct inode *inode = iter->inode; unsigned int blkbits = blksize_bits(bdev_logical_block_size(iomap->bdev)); unsigned int fs_block_size = i_blocksize(inode), pad; - unsigned int align = iov_iter_alignment(dio->submit.iter); loff_t length = iomap_length(iter); loff_t pos = iter->pos; unsigned int bio_opf; @@ -253,7 +252,8 @@ static loff_t iomap_dio_bio_iter(const struct iomap_iter *iter, size_t copied = 0; size_t orig_count; - if ((pos | length | align) & ((1 << blkbits) - 1)) + if ((pos | length) & ((1 << blkbits) - 1) || + !bdev_iter_is_aligned(iomap->bdev, dio->submit.iter)) return -EINVAL; if (iomap->type == IOMAP_UNWRITTEN) { -- cgit v1.2.3 From b623e347323f6464b20fb0d899a0a73522ed8f6c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 6 Jul 2022 09:03:45 +0200 Subject: block: replace blkdev_nr_zones with bdev_nr_zones Pass a block_device instead of a request_queue as that is what most callers have at hand. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Johannes Thumshirn Reviewed-by: Damien Le Moal Acked-by: Damien Le Moal Link: https://lore.kernel.org/r/20220706070350.1703384-12-hch@lst.de Signed-off-by: Jens Axboe --- block/blk-zoned.c | 15 ++++++++------- block/ioctl.c | 2 +- drivers/block/null_blk/zoned.c | 2 +- drivers/md/dm-zone.c | 2 +- drivers/md/dm-zoned-target.c | 5 ++--- drivers/nvme/target/zns.c | 6 +++--- fs/zonefs/super.c | 17 ++++++++--------- include/linux/blkdev.h | 4 ++-- 8 files changed, 26 insertions(+), 27 deletions(-) (limited to 'fs') diff --git a/block/blk-zoned.c b/block/blk-zoned.c index 0d431394cf90..2dec25d8aa3b 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -108,21 +108,22 @@ void __blk_req_zone_write_unlock(struct request *rq) EXPORT_SYMBOL_GPL(__blk_req_zone_write_unlock); /** - * blkdev_nr_zones - Get number of zones - * @disk: Target gendisk + * bdev_nr_zones - Get number of zones + * @bdev: Target device * * Return the total number of zones of a zoned block device. For a block * device without zone capabilities, the number of zones is always 0. */ -unsigned int blkdev_nr_zones(struct gendisk *disk) +unsigned int bdev_nr_zones(struct block_device *bdev) { - sector_t zone_sectors = blk_queue_zone_sectors(disk->queue); + sector_t zone_sectors = bdev_zone_sectors(bdev); - if (!blk_queue_is_zoned(disk->queue)) + if (!bdev_is_zoned(bdev)) return 0; - return (get_capacity(disk) + zone_sectors - 1) >> ilog2(zone_sectors); + return (bdev_nr_sectors(bdev) + zone_sectors - 1) >> + ilog2(zone_sectors); } -EXPORT_SYMBOL_GPL(blkdev_nr_zones); +EXPORT_SYMBOL_GPL(bdev_nr_zones); /** * blkdev_report_zones - Get zones information diff --git a/block/ioctl.c b/block/ioctl.c index 46949f1b0dba..60121e89052b 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -495,7 +495,7 @@ static int blkdev_common_ioctl(struct block_device *bdev, fmode_t mode, case BLKGETZONESZ: return put_uint(argp, bdev_zone_sectors(bdev)); case BLKGETNRZONES: - return put_uint(argp, blkdev_nr_zones(bdev->bd_disk)); + return put_uint(argp, bdev_nr_zones(bdev)); case BLKROGET: return put_int(argp, bdev_read_only(bdev) != 0); case BLKSSZGET: /* get block device logical block size */ diff --git a/drivers/block/null_blk/zoned.c b/drivers/block/null_blk/zoned.c index 576ab3ed082a..e62c52e96425 100644 --- a/drivers/block/null_blk/zoned.c +++ b/drivers/block/null_blk/zoned.c @@ -170,7 +170,7 @@ int null_register_zoned_dev(struct nullb *nullb) return ret; } else { blk_queue_chunk_sectors(q, dev->zone_size_sects); - q->nr_zones = blkdev_nr_zones(nullb->disk); + q->nr_zones = bdev_nr_zones(nullb->disk->part0); } blk_queue_max_zone_append_sectors(q, dev->zone_size_sects); diff --git a/drivers/md/dm-zone.c b/drivers/md/dm-zone.c index ae616b87c91a..6d105abe1241 100644 --- a/drivers/md/dm-zone.c +++ b/drivers/md/dm-zone.c @@ -301,7 +301,7 @@ int dm_set_zones_restrictions(struct dm_table *t, struct request_queue *q) * correct value to be exposed in sysfs queue/nr_zones. */ WARN_ON_ONCE(queue_is_mq(q)); - q->nr_zones = blkdev_nr_zones(md->disk); + q->nr_zones = bdev_nr_zones(md->disk->part0); /* Check if zone append is natively supported */ if (dm_table_supports_zone_append(t)) { diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c index 0ec5d8b9b1a4..6ba6ef44b00e 100644 --- a/drivers/md/dm-zoned-target.c +++ b/drivers/md/dm-zoned-target.c @@ -793,8 +793,7 @@ static int dmz_fixup_devices(struct dm_target *ti) } zone_nr_sectors = blk_queue_zone_sectors(q); zoned_dev->zone_nr_sectors = zone_nr_sectors; - zoned_dev->nr_zones = - blkdev_nr_zones(zoned_dev->bdev->bd_disk); + zoned_dev->nr_zones = bdev_nr_zones(zoned_dev->bdev); } } else { reg_dev = NULL; @@ -805,7 +804,7 @@ static int dmz_fixup_devices(struct dm_target *ti) } q = bdev_get_queue(zoned_dev->bdev); zoned_dev->zone_nr_sectors = blk_queue_zone_sectors(q); - zoned_dev->nr_zones = blkdev_nr_zones(zoned_dev->bdev->bd_disk); + zoned_dev->nr_zones = bdev_nr_zones(zoned_dev->bdev); } if (reg_dev) { diff --git a/drivers/nvme/target/zns.c b/drivers/nvme/target/zns.c index 82b61acf7a72..c4c99b832daf 100644 --- a/drivers/nvme/target/zns.c +++ b/drivers/nvme/target/zns.c @@ -60,7 +60,7 @@ bool nvmet_bdev_zns_enable(struct nvmet_ns *ns) if (ns->bdev->bd_disk->queue->conv_zones_bitmap) return false; - ret = blkdev_report_zones(ns->bdev, 0, blkdev_nr_zones(bd_disk), + ret = blkdev_report_zones(ns->bdev, 0, bdev_nr_zones(ns->bdev), validate_conv_zones_cb, NULL); if (ret < 0) return false; @@ -241,7 +241,7 @@ static unsigned long nvmet_req_nr_zones_from_slba(struct nvmet_req *req) { unsigned int sect = nvmet_lba_to_sect(req->ns, req->cmd->zmr.slba); - return blkdev_nr_zones(req->ns->bdev->bd_disk) - + return bdev_nr_zones(req->ns->bdev) - (sect >> ilog2(bdev_zone_sectors(req->ns->bdev))); } @@ -386,7 +386,7 @@ static int zmgmt_send_scan_cb(struct blk_zone *z, unsigned i, void *d) static u16 nvmet_bdev_zone_mgmt_emulate_all(struct nvmet_req *req) { struct block_device *bdev = req->ns->bdev; - unsigned int nr_zones = blkdev_nr_zones(bdev->bd_disk); + unsigned int nr_zones = bdev_nr_zones(bdev); struct request_queue *q = bdev_get_queue(bdev); struct bio *bio = NULL; sector_t sector = 0; diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index 053299758deb..9c0eef1ff32a 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -1394,7 +1394,7 @@ static void zonefs_init_dir_inode(struct inode *parent, struct inode *inode, { struct super_block *sb = parent->i_sb; - inode->i_ino = blkdev_nr_zones(sb->s_bdev->bd_disk) + type + 1; + inode->i_ino = bdev_nr_zones(sb->s_bdev) + type + 1; inode_init_owner(&init_user_ns, inode, parent, S_IFDIR | 0555); inode->i_op = &zonefs_dir_inode_operations; inode->i_fop = &simple_dir_operations; @@ -1540,7 +1540,7 @@ static int zonefs_create_zgroup(struct zonefs_zone_data *zd, /* * The first zone contains the super block: skip it. */ - end = zd->zones + blkdev_nr_zones(sb->s_bdev->bd_disk); + end = zd->zones + bdev_nr_zones(sb->s_bdev); for (zone = &zd->zones[1]; zone < end; zone = next) { next = zone + 1; @@ -1635,8 +1635,8 @@ static int zonefs_get_zone_info(struct zonefs_zone_data *zd) struct block_device *bdev = zd->sb->s_bdev; int ret; - zd->zones = kvcalloc(blkdev_nr_zones(bdev->bd_disk), - sizeof(struct blk_zone), GFP_KERNEL); + zd->zones = kvcalloc(bdev_nr_zones(bdev), sizeof(struct blk_zone), + GFP_KERNEL); if (!zd->zones) return -ENOMEM; @@ -1648,9 +1648,9 @@ static int zonefs_get_zone_info(struct zonefs_zone_data *zd) return ret; } - if (ret != blkdev_nr_zones(bdev->bd_disk)) { + if (ret != bdev_nr_zones(bdev)) { zonefs_err(zd->sb, "Invalid zone report (%d/%u zones)\n", - ret, blkdev_nr_zones(bdev->bd_disk)); + ret, bdev_nr_zones(bdev)); return -EIO; } @@ -1816,8 +1816,7 @@ static int zonefs_fill_super(struct super_block *sb, void *data, int silent) if (ret) goto cleanup; - zonefs_info(sb, "Mounting %u zones", - blkdev_nr_zones(sb->s_bdev->bd_disk)); + zonefs_info(sb, "Mounting %u zones", bdev_nr_zones(sb->s_bdev)); if (!sbi->s_max_wro_seq_files && !sbi->s_max_active_seq_files && @@ -1833,7 +1832,7 @@ static int zonefs_fill_super(struct super_block *sb, void *data, int silent) if (!inode) goto cleanup; - inode->i_ino = blkdev_nr_zones(sb->s_bdev->bd_disk); + inode->i_ino = bdev_nr_zones(sb->s_bdev); inode->i_mode = S_IFDIR | 0555; inode->i_ctime = inode->i_mtime = inode->i_atime = current_time(inode); inode->i_op = &zonefs_dir_inode_operations; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index c05e1cc05c26..fa2757ef4a84 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -298,7 +298,7 @@ void disk_set_zoned(struct gendisk *disk, enum blk_zoned_model model); #define BLK_ALL_ZONES ((unsigned int)-1) int blkdev_report_zones(struct block_device *bdev, sector_t sector, unsigned int nr_zones, report_zones_cb cb, void *data); -unsigned int blkdev_nr_zones(struct gendisk *disk); +unsigned int bdev_nr_zones(struct block_device *bdev); extern int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op, sector_t sectors, sector_t nr_sectors, gfp_t gfp_mask); @@ -312,7 +312,7 @@ extern int blkdev_zone_mgmt_ioctl(struct block_device *bdev, fmode_t mode, #else /* CONFIG_BLK_DEV_ZONED */ -static inline unsigned int blkdev_nr_zones(struct gendisk *disk) +static inline unsigned int bdev_nr_zones(struct block_device *bdev) { return 0; } -- cgit v1.2.3 From 4664954c9421ce326bb5c84f175902b03f17237e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 13 Jul 2022 07:53:15 +0200 Subject: ocfs2/cluster: remove the hr_dev_name field from struct o2hb_region Just print the block device name directly using the %pg format specifier. Signed-off-by: Christoph Hellwig Reviewed-by: Joel Becker Reviewed-by: Jan Kara Reviewed-by: Chaitanya Kulkarni Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20220713055317.1888500-8-hch@lst.de Signed-off-by: Jens Axboe --- fs/ocfs2/cluster/heartbeat.c | 64 +++++++++++++++++++++----------------------- 1 file changed, 30 insertions(+), 34 deletions(-) (limited to 'fs') diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index ea0e70c0fce0..5f83c0c0918c 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -235,8 +235,6 @@ struct o2hb_region { * (hr_steady_iterations == 0) within hr_unsteady_iterations */ atomic_t hr_unsteady_iterations; - char hr_dev_name[BDEVNAME_SIZE]; - unsigned int hr_timeout_ms; /* randomized as the region goes up and down so that a node @@ -287,8 +285,8 @@ static void o2hb_write_timeout(struct work_struct *work) container_of(work, struct o2hb_region, hr_write_timeout_work.work); - mlog(ML_ERROR, "Heartbeat write timeout to device %s after %u " - "milliseconds\n", reg->hr_dev_name, + mlog(ML_ERROR, "Heartbeat write timeout to device %pg after %u " + "milliseconds\n", reg->hr_bdev, jiffies_to_msecs(jiffies - reg->hr_last_timeout_start)); if (o2hb_global_heartbeat_active()) { @@ -383,9 +381,9 @@ static void o2hb_nego_timeout(struct work_struct *work) if (master_node == o2nm_this_node()) { if (!test_bit(master_node, reg->hr_nego_node_bitmap)) { - printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%s).\n", + printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%pg).\n", o2nm_this_node(), O2HB_NEGO_TIMEOUT_MS/1000, - config_item_name(®->hr_item), reg->hr_dev_name); + config_item_name(®->hr_item), reg->hr_bdev); set_bit(master_node, reg->hr_nego_node_bitmap); } if (memcmp(reg->hr_nego_node_bitmap, live_node_bitmap, @@ -399,8 +397,8 @@ static void o2hb_nego_timeout(struct work_struct *work) return; } - printk(KERN_NOTICE "o2hb: all nodes hb write hung, maybe region %s (%s) is down.\n", - config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: all nodes hb write hung, maybe region %s (%pg) is down.\n", + config_item_name(®->hr_item), reg->hr_bdev); /* approve negotiate timeout request. */ o2hb_arm_timeout(reg); @@ -419,9 +417,9 @@ static void o2hb_nego_timeout(struct work_struct *work) } } else { /* negotiate timeout with master node. */ - printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%s), negotiate timeout with node %d.\n", + printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%pg), negotiate timeout with node %d.\n", o2nm_this_node(), O2HB_NEGO_TIMEOUT_MS/1000, config_item_name(®->hr_item), - reg->hr_dev_name, master_node); + reg->hr_bdev, master_node); ret = o2hb_send_nego_msg(reg->hr_key, O2HB_NEGO_TIMEOUT_MSG, master_node); if (ret) @@ -437,8 +435,8 @@ static int o2hb_nego_timeout_handler(struct o2net_msg *msg, u32 len, void *data, struct o2hb_nego_msg *nego_msg; nego_msg = (struct o2hb_nego_msg *)msg->buf; - printk(KERN_NOTICE "o2hb: receive negotiate timeout message from node %d on region %s (%s).\n", - nego_msg->node_num, config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: receive negotiate timeout message from node %d on region %s (%pg).\n", + nego_msg->node_num, config_item_name(®->hr_item), reg->hr_bdev); if (nego_msg->node_num < O2NM_MAX_NODES) set_bit(nego_msg->node_num, reg->hr_nego_node_bitmap); else @@ -452,8 +450,8 @@ static int o2hb_nego_approve_handler(struct o2net_msg *msg, u32 len, void *data, { struct o2hb_region *reg = data; - printk(KERN_NOTICE "o2hb: negotiate timeout approved by master node on region %s (%s).\n", - config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: negotiate timeout approved by master node on region %s (%pg).\n", + config_item_name(®->hr_item), reg->hr_bdev); o2hb_arm_timeout(reg); return 0; } @@ -689,8 +687,8 @@ static int o2hb_check_own_slot(struct o2hb_region *reg) else errstr = ERRSTR3; - mlog(ML_ERROR, "%s (%s): expected(%u:0x%llx, 0x%llx), " - "ondisk(%u:0x%llx, 0x%llx)\n", errstr, reg->hr_dev_name, + mlog(ML_ERROR, "%s (%pg): expected(%u:0x%llx, 0x%llx), " + "ondisk(%u:0x%llx, 0x%llx)\n", errstr, reg->hr_bdev, slot->ds_node_num, (unsigned long long)slot->ds_last_generation, (unsigned long long)slot->ds_last_time, hb_block->hb_node, (unsigned long long)le64_to_cpu(hb_block->hb_generation), @@ -863,8 +861,8 @@ static void o2hb_set_quorum_device(struct o2hb_region *reg) sizeof(o2hb_live_node_bitmap))) goto unlock; - printk(KERN_NOTICE "o2hb: Region %s (%s) is now a quorum device\n", - config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: Region %s (%pg) is now a quorum device\n", + config_item_name(®->hr_item), reg->hr_bdev); set_bit(reg->hr_region_num, o2hb_quorum_region_bitmap); @@ -922,8 +920,8 @@ static int o2hb_check_slot(struct o2hb_region *reg, /* The node is live but pushed out a bad crc. We * consider it a transient miss but don't populate any * other values as they may be junk. */ - mlog(ML_ERROR, "Node %d has written a bad crc to %s\n", - slot->ds_node_num, reg->hr_dev_name); + mlog(ML_ERROR, "Node %d has written a bad crc to %pg\n", + slot->ds_node_num, reg->hr_bdev); o2hb_dump_slot(hb_block); slot->ds_equal_samples++; @@ -1002,11 +1000,11 @@ fire_callbacks: slot_dead_ms = le32_to_cpu(hb_block->hb_dead_ms); if (slot_dead_ms && slot_dead_ms != dead_ms) { /* TODO: Perhaps we can fail the region here. */ - mlog(ML_ERROR, "Node %d on device %s has a dead count " + mlog(ML_ERROR, "Node %d on device %pg has a dead count " "of %u ms, but our count is %u ms.\n" "Please double check your configuration values " "for 'O2CB_HEARTBEAT_THRESHOLD'\n", - slot->ds_node_num, reg->hr_dev_name, slot_dead_ms, + slot->ds_node_num, reg->hr_bdev, slot_dead_ms, dead_ms); } goto out; @@ -1145,8 +1143,8 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) /* Do not re-arm the write timeout on I/O error - we * can't be sure that the new block ever made it to * disk */ - mlog(ML_ERROR, "Write error %d on device \"%s\"\n", - write_wc.wc_error, reg->hr_dev_name); + mlog(ML_ERROR, "Write error %d on device \"%pg\"\n", + write_wc.wc_error, reg->hr_bdev); ret = write_wc.wc_error; goto bail; } @@ -1170,9 +1168,9 @@ bail: if (atomic_read(®->hr_steady_iterations) != 0) { if (atomic_dec_and_test(®->hr_unsteady_iterations)) { printk(KERN_NOTICE "o2hb: Unable to stabilize " - "heartbeat on region %s (%s)\n", + "heartbeat on region %s (%pg)\n", config_item_name(®->hr_item), - reg->hr_dev_name); + reg->hr_bdev); atomic_set(®->hr_steady_iterations, 0); reg->hr_aborted_start = 1; wake_up(&o2hb_steady_queue); @@ -1494,7 +1492,7 @@ static void o2hb_region_release(struct config_item *item) struct page *page; struct o2hb_region *reg = to_o2hb_region(item); - mlog(ML_HEARTBEAT, "hb region release (%s)\n", reg->hr_dev_name); + mlog(ML_HEARTBEAT, "hb region release (%pg)\n", reg->hr_bdev); kfree(reg->hr_tmp_block); @@ -1641,7 +1639,7 @@ static ssize_t o2hb_region_dev_show(struct config_item *item, char *page) unsigned int ret = 0; if (to_o2hb_region(item)->hr_bdev) - ret = sprintf(page, "%s\n", to_o2hb_region(item)->hr_dev_name); + ret = sprintf(page, "%pg\n", to_o2hb_region(item)->hr_bdev); return ret; } @@ -1798,8 +1796,6 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, goto out2; } - bdevname(reg->hr_bdev, reg->hr_dev_name); - sectsize = bdev_logical_block_size(reg->hr_bdev); if (sectsize != reg->hr_block_bytes) { mlog(ML_ERROR, @@ -1895,8 +1891,8 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, ret = -EIO; if (hb_task && o2hb_global_heartbeat_active()) - printk(KERN_NOTICE "o2hb: Heartbeat started on region %s (%s)\n", - config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: Heartbeat started on region %s (%pg)\n", + config_item_name(®->hr_item), reg->hr_bdev); out3: if (ret < 0) { @@ -2088,10 +2084,10 @@ static void o2hb_heartbeat_group_drop_item(struct config_group *group, quorum_region = 1; clear_bit(reg->hr_region_num, o2hb_quorum_region_bitmap); spin_unlock(&o2hb_live_lock); - printk(KERN_NOTICE "o2hb: Heartbeat %s on region %s (%s)\n", + printk(KERN_NOTICE "o2hb: Heartbeat %s on region %s (%pg)\n", ((atomic_read(®->hr_steady_iterations) == 0) ? "stopped" : "start aborted"), config_item_name(item), - reg->hr_dev_name); + reg->hr_bdev); } /* -- cgit v1.2.3 From c5b045b9838972cc4c4985a32fa5d35ecf2ab15a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 13 Jul 2022 07:53:16 +0200 Subject: ext4: only initialize mmp_bdevname once mmp_bdevname is currently both initialized nested inside the kthread_run call in ext4_multi_mount_protect and in the kmmpd thread started by it. Lift the initiaization out of the kthread_run call in ext4_multi_mount_protect, move the BUILD_BUG_ON next to it and remove the duplicate assignment inside of kmmpd. Signed-off-by: Christoph Hellwig Acked-by: Theodore Ts'o Reviewed-by: Jan Kara Reviewed-by: Chaitanya Kulkarni Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20220713055317.1888500-9-hch@lst.de Signed-off-by: Jens Axboe --- fs/ext4/mmp.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'fs') diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index 79d05e464c43..b7a850b0070b 100644 --- a/fs/ext4/mmp.c +++ b/fs/ext4/mmp.c @@ -150,8 +150,6 @@ static int kmmpd(void *data) mmp_check_interval = max(EXT4_MMP_CHECK_MULT * mmp_update_interval, EXT4_MMP_MIN_CHECK_INTERVAL); mmp->mmp_check_interval = cpu_to_le16(mmp_check_interval); - BUILD_BUG_ON(sizeof(mmp->mmp_bdevname) < BDEVNAME_SIZE); - bdevname(bh->b_bdev, mmp->mmp_bdevname); memcpy(mmp->mmp_nodename, init_utsname()->nodename, sizeof(mmp->mmp_nodename)); @@ -372,13 +370,15 @@ skip: EXT4_SB(sb)->s_mmp_bh = bh; + BUILD_BUG_ON(sizeof(mmp->mmp_bdevname) < BDEVNAME_SIZE); + bdevname(bh->b_bdev, mmp->mmp_bdevname); + /* * Start a kernel thread to update the MMP block periodically. */ EXT4_SB(sb)->s_mmp_tsk = kthread_run(kmmpd, sb, "kmmpd-%.*s", (int)sizeof(mmp->mmp_bdevname), - bdevname(bh->b_bdev, - mmp->mmp_bdevname)); + mmp->mmp_bdevname); if (IS_ERR(EXT4_SB(sb)->s_mmp_tsk)) { EXT4_SB(sb)->s_mmp_tsk = NULL; ext4_warning(sb, "Unable to create kmmpd thread for %s.", -- cgit v1.2.3 From 900d156bac2bc474cf7c7bee4efbc6c83ec5ae58 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 13 Jul 2022 07:53:17 +0200 Subject: block: remove bdevname Replace the remaining calls of bdevname with snprintf using the %pg format specifier. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Chaitanya Kulkarni Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20220713055317.1888500-10-hch@lst.de Signed-off-by: Jens Axboe --- block/genhd.c | 23 ----------------------- drivers/md/md.c | 2 +- drivers/md/raid1.c | 2 +- drivers/md/raid10.c | 2 +- fs/ext4/mmp.c | 3 ++- fs/jbd2/journal.c | 6 ++++-- include/linux/blkdev.h | 1 - kernel/trace/blktrace.c | 4 ++-- 8 files changed, 11 insertions(+), 32 deletions(-) (limited to 'fs') diff --git a/block/genhd.c b/block/genhd.c index 9d30f159c59a..44dfcf67ed96 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -101,29 +101,6 @@ bool set_capacity_and_notify(struct gendisk *disk, sector_t size) } EXPORT_SYMBOL_GPL(set_capacity_and_notify); -/* - * Format the device name of the indicated block device into the supplied buffer - * and return a pointer to that same buffer for convenience. - * - * Note: do not use this in new code, use the %pg specifier to sprintf and - * printk insted. - */ -const char *bdevname(struct block_device *bdev, char *buf) -{ - struct gendisk *hd = bdev->bd_disk; - int partno = bdev->bd_partno; - - if (!partno) - snprintf(buf, BDEVNAME_SIZE, "%s", hd->disk_name); - else if (isdigit(hd->disk_name[strlen(hd->disk_name)-1])) - snprintf(buf, BDEVNAME_SIZE, "%sp%d", hd->disk_name, partno); - else - snprintf(buf, BDEVNAME_SIZE, "%s%d", hd->disk_name, partno); - - return buf; -} -EXPORT_SYMBOL(bdevname); - static void part_stat_read_all(struct block_device *part, struct disk_stats *stat) { diff --git a/drivers/md/md.c b/drivers/md/md.c index 076255ec9ba1..4be9d8173071 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2438,7 +2438,7 @@ static int bind_rdev_to_array(struct md_rdev *rdev, struct mddev *mddev) mdname(mddev), mddev->max_disks); return -EBUSY; } - bdevname(rdev->bdev,b); + snprintf(b, sizeof(b), "%pg", rdev->bdev); strreplace(b, '/', '!'); rdev->mddev = mddev; diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 258d4eb2d63c..65cd90f0b2a8 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1240,7 +1240,7 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio, rcu_read_lock(); rdev = rcu_dereference(conf->mirrors[r1_bio->read_disk].rdev); if (rdev) - bdevname(rdev->bdev, b); + snprintf(b, sizeof(b), "%pg", rdev->bdev); else strcpy(b, "???"); rcu_read_unlock(); diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index d589f823feb1..a7dcb1bf6b0a 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1164,7 +1164,7 @@ static void raid10_read_request(struct mddev *mddev, struct bio *bio, disk = r10_bio->devs[slot].devnum; err_rdev = rcu_dereference(conf->mirrors[disk].rdev); if (err_rdev) - bdevname(err_rdev->bdev, b); + snprintf(b, sizeof(b), "%pg", err_rdev->bdev); else { strcpy(b, "???"); /* This never gets dereferenced */ diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index b7a850b0070b..b221f313ded6 100644 --- a/fs/ext4/mmp.c +++ b/fs/ext4/mmp.c @@ -371,7 +371,8 @@ skip: EXT4_SB(sb)->s_mmp_bh = bh; BUILD_BUG_ON(sizeof(mmp->mmp_bdevname) < BDEVNAME_SIZE); - bdevname(bh->b_bdev, mmp->mmp_bdevname); + snprintf(mmp->mmp_bdevname, sizeof(mmp->mmp_bdevname), + "%pg", bh->b_bdev); /* * Start a kernel thread to update the MMP block periodically. diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index c0cbeeaec2d1..9015f5fa2862 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1465,7 +1465,8 @@ journal_t *jbd2_journal_init_dev(struct block_device *bdev, if (!journal) return NULL; - bdevname(journal->j_dev, journal->j_devname); + snprintf(journal->j_devname, sizeof(journal->j_devname), + "%pg", journal->j_dev); strreplace(journal->j_devname, '/', '!'); jbd2_stats_proc_init(journal); @@ -1507,7 +1508,8 @@ journal_t *jbd2_journal_init_inode(struct inode *inode) return NULL; journal->j_inode = inode; - bdevname(journal->j_dev, journal->j_devname); + snprintf(journal->j_devname, sizeof(journal->j_devname), + "%pg", journal->j_dev); p = strreplace(journal->j_devname, '/', '!'); sprintf(p, "-%lu", journal->j_inode->i_ino); jbd2_stats_proc_init(journal); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 22c477fadc0f..2775763c51b9 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1457,7 +1457,6 @@ static inline void bio_end_io_acct(struct bio *bio, unsigned long start_time) int bdev_read_only(struct block_device *bdev); int set_blocksize(struct block_device *bdev, int size); -const char *bdevname(struct block_device *bdev, char *buffer); int lookup_bdev(const char *pathname, dev_t *dev); void blkdev_show(struct seq_file *seqf, off_t offset); diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index c584effe5fe9..4752bda1b1a0 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -736,12 +736,12 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg) switch (cmd) { case BLKTRACESETUP: - bdevname(bdev, b); + snprintf(b, sizeof(b), "%pg", bdev); ret = __blk_trace_setup(q, b, bdev->bd_dev, bdev, arg); break; #if defined(CONFIG_COMPAT) && defined(CONFIG_X86_64) case BLKTRACESETUP32: - bdevname(bdev, b); + snprintf(b, sizeof(b), "%pg", bdev); ret = compat_blk_trace_setup(q, b, bdev->bd_dev, bdev, arg); break; #endif -- cgit v1.2.3 From ff07a02e9e8e6489db841e0c48a5c78e7e78d572 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:06:27 -0700 Subject: treewide: Rename enum req_opf into enum req_op The type name enum req_opf is misleading since it suggests that values of this type include both an operation type and flags. Since values of this type represent an operation only, change the type name into enum req_op. Convert the enum req_op documentation into kernel-doc format. Move a few definitions such that the enum req_op documentation occurs just above the enum req_op definition. The name "req_opf" was introduced by commit ef295ecf090d ("block: better op and flags encoding"). Cc: Christoph Hellwig Cc: Ming Lei Cc: Hannes Reinecke Cc: Damien Le Moal Cc: Johannes Thumshirn Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-2-bvanassche@acm.org Signed-off-by: Jens Axboe --- block/blk-zoned.c | 7 +++---- drivers/block/null_blk/main.c | 9 ++++----- drivers/block/null_blk/null_blk.h | 12 +++++------- drivers/block/null_blk/trace.h | 2 +- drivers/block/null_blk/zoned.c | 4 ++-- drivers/md/dm-integrity.c | 2 +- drivers/nvme/target/zns.c | 4 ++-- drivers/scsi/sd_zbc.c | 2 +- drivers/ufs/core/ufshpb.c | 5 ++--- fs/zonefs/super.c | 5 ++--- fs/zonefs/trace.h | 2 +- include/linux/blk_types.h | 16 ++++++++-------- include/linux/blkdev.h | 2 +- 13 files changed, 33 insertions(+), 39 deletions(-) (limited to 'fs') diff --git a/block/blk-zoned.c b/block/blk-zoned.c index 7c017458d5ce..a264621d4905 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -256,9 +256,8 @@ static int blkdev_zone_reset_all(struct block_device *bdev, gfp_t gfp_mask) * The operation to execute on each zone can be a zone reset, open, close * or finish request. */ -int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op, - sector_t sector, sector_t nr_sectors, - gfp_t gfp_mask) +int blkdev_zone_mgmt(struct block_device *bdev, enum req_op op, + sector_t sector, sector_t nr_sectors, gfp_t gfp_mask) { struct request_queue *q = bdev_get_queue(bdev); sector_t zone_sectors = bdev_zone_sectors(bdev); @@ -397,7 +396,7 @@ int blkdev_zone_mgmt_ioctl(struct block_device *bdev, fmode_t mode, void __user *argp = (void __user *)arg; struct request_queue *q; struct blk_zone_range zrange; - enum req_opf op; + enum req_op op; int ret; if (!argp) diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c index 4e03a020ee3c..8b224ede2e33 100644 --- a/drivers/block/null_blk/main.c +++ b/drivers/block/null_blk/main.c @@ -1310,7 +1310,7 @@ static inline blk_status_t null_handle_badblocks(struct nullb_cmd *cmd, } static inline blk_status_t null_handle_memory_backed(struct nullb_cmd *cmd, - enum req_opf op, + enum req_op op, sector_t sector, sector_t nr_sectors) { @@ -1381,9 +1381,8 @@ static inline void nullb_complete_cmd(struct nullb_cmd *cmd) } } -blk_status_t null_process_cmd(struct nullb_cmd *cmd, - enum req_opf op, sector_t sector, - unsigned int nr_sectors) +blk_status_t null_process_cmd(struct nullb_cmd *cmd, enum req_op op, + sector_t sector, unsigned int nr_sectors) { struct nullb_device *dev = cmd->nq->dev; blk_status_t ret; @@ -1401,7 +1400,7 @@ blk_status_t null_process_cmd(struct nullb_cmd *cmd, } static blk_status_t null_handle_cmd(struct nullb_cmd *cmd, sector_t sector, - sector_t nr_sectors, enum req_opf op) + sector_t nr_sectors, enum req_op op) { struct nullb_device *dev = cmd->nq->dev; struct nullb *nullb = dev->nullb; diff --git a/drivers/block/null_blk/null_blk.h b/drivers/block/null_blk/null_blk.h index 8359b43842f2..6fbf0a1b2622 100644 --- a/drivers/block/null_blk/null_blk.h +++ b/drivers/block/null_blk/null_blk.h @@ -136,9 +136,8 @@ struct nullb { blk_status_t null_handle_discard(struct nullb_device *dev, sector_t sector, sector_t nr_sectors); -blk_status_t null_process_cmd(struct nullb_cmd *cmd, - enum req_opf op, sector_t sector, - unsigned int nr_sectors); +blk_status_t null_process_cmd(struct nullb_cmd *cmd, enum req_op op, + sector_t sector, unsigned int nr_sectors); #ifdef CONFIG_BLK_DEV_ZONED int null_init_zoned_dev(struct nullb_device *dev, struct request_queue *q); @@ -146,9 +145,8 @@ int null_register_zoned_dev(struct nullb *nullb); void null_free_zoned_dev(struct nullb_device *dev); int null_report_zones(struct gendisk *disk, sector_t sector, unsigned int nr_zones, report_zones_cb cb, void *data); -blk_status_t null_process_zoned_cmd(struct nullb_cmd *cmd, - enum req_opf op, sector_t sector, - sector_t nr_sectors); +blk_status_t null_process_zoned_cmd(struct nullb_cmd *cmd, enum req_op op, + sector_t sector, sector_t nr_sectors); size_t null_zone_valid_read_len(struct nullb *nullb, sector_t sector, unsigned int len); #else @@ -164,7 +162,7 @@ static inline int null_register_zoned_dev(struct nullb *nullb) } static inline void null_free_zoned_dev(struct nullb_device *dev) {} static inline blk_status_t null_process_zoned_cmd(struct nullb_cmd *cmd, - enum req_opf op, sector_t sector, sector_t nr_sectors) + enum req_op op, sector_t sector, sector_t nr_sectors) { return BLK_STS_NOTSUPP; } diff --git a/drivers/block/null_blk/trace.h b/drivers/block/null_blk/trace.h index 86d6c12c603c..6b2b370e786f 100644 --- a/drivers/block/null_blk/trace.h +++ b/drivers/block/null_blk/trace.h @@ -36,7 +36,7 @@ TRACE_EVENT(nullb_zone_op, TP_ARGS(cmd, zone_no, zone_cond), TP_STRUCT__entry( __array(char, disk, DISK_NAME_LEN) - __field(enum req_opf, op) + __field(enum req_op, op) __field(unsigned int, zone_no) __field(unsigned int, zone_cond) ), diff --git a/drivers/block/null_blk/zoned.c b/drivers/block/null_blk/zoned.c index 64b06caab984..55a69e48ef8b 100644 --- a/drivers/block/null_blk/zoned.c +++ b/drivers/block/null_blk/zoned.c @@ -600,7 +600,7 @@ static blk_status_t null_reset_zone(struct nullb_device *dev, return BLK_STS_OK; } -static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op, +static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_op op, sector_t sector) { struct nullb_device *dev = cmd->nq->dev; @@ -653,7 +653,7 @@ static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op, return ret; } -blk_status_t null_process_zoned_cmd(struct nullb_cmd *cmd, enum req_opf op, +blk_status_t null_process_zoned_cmd(struct nullb_cmd *cmd, enum req_op op, sector_t sector, sector_t nr_sectors) { struct nullb_device *dev; diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 3d5a0ce123c9..148978ad03a8 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -298,7 +298,7 @@ struct dm_integrity_io { struct work_struct work; struct dm_integrity_c *ic; - enum req_opf op; + enum req_op op; bool fua; struct dm_integrity_range range; diff --git a/drivers/nvme/target/zns.c b/drivers/nvme/target/zns.c index c0ee21fcab81..b233c0943fec 100644 --- a/drivers/nvme/target/zns.c +++ b/drivers/nvme/target/zns.c @@ -308,7 +308,7 @@ void nvmet_bdev_execute_zone_mgmt_recv(struct nvmet_req *req) queue_work(zbd_wq, &req->z.zmgmt_work); } -static inline enum req_opf zsa_req_op(u8 zsa) +static inline enum req_op zsa_req_op(u8 zsa) { switch (zsa) { case NVME_ZONE_OPEN: @@ -465,7 +465,7 @@ static void nvmet_bdev_zmgmt_send_work(struct work_struct *w) { struct nvmet_req *req = container_of(w, struct nvmet_req, z.zmgmt_work); sector_t sect = nvmet_lba_to_sect(req->ns, req->cmd->zms.slba); - enum req_opf op = zsa_req_op(req->cmd->zms.zsa); + enum req_op op = zsa_req_op(req->cmd->zms.zsa); struct block_device *bdev = req->ns->bdev; sector_t zone_sectors = bdev_zone_sectors(bdev); u16 status = NVME_SC_SUCCESS; diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c index b8c97456506a..bd15624c6322 100644 --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -529,7 +529,7 @@ static unsigned int sd_zbc_zone_wp_update(struct scsi_cmnd *cmd, struct request *rq = scsi_cmd_to_rq(cmd); struct scsi_disk *sdkp = scsi_disk(rq->q->disk); unsigned int zno = blk_rq_zone_no(rq); - enum req_opf op = req_op(rq); + enum req_op op = req_op(rq); unsigned long flags; /* diff --git a/drivers/ufs/core/ufshpb.c b/drivers/ufs/core/ufshpb.c index de2bb8401bc4..24f1ee82c215 100644 --- a/drivers/ufs/core/ufshpb.c +++ b/drivers/ufs/core/ufshpb.c @@ -433,9 +433,8 @@ int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) return 0; } -static struct ufshpb_req *ufshpb_get_req(struct ufshpb_lu *hpb, - int rgn_idx, enum req_opf dir, - bool atomic) +static struct ufshpb_req *ufshpb_get_req(struct ufshpb_lu *hpb, int rgn_idx, + enum req_op dir, bool atomic) { struct ufshpb_req *rq; struct request *req; diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index 9c0eef1ff32a..a221ddb12da6 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -60,8 +60,7 @@ static void zonefs_account_active(struct inode *inode) } } -static inline int zonefs_zone_mgmt(struct inode *inode, - enum req_opf op) +static inline int zonefs_zone_mgmt(struct inode *inode, enum req_op op) { struct zonefs_inode_info *zi = ZONEFS_I(inode); int ret; @@ -525,7 +524,7 @@ static int zonefs_file_truncate(struct inode *inode, loff_t isize) { struct zonefs_inode_info *zi = ZONEFS_I(inode); loff_t old_isize; - enum req_opf op; + enum req_op op; int ret = 0; /* diff --git a/fs/zonefs/trace.h b/fs/zonefs/trace.h index f369d7d50303..21501da764bd 100644 --- a/fs/zonefs/trace.h +++ b/fs/zonefs/trace.h @@ -20,7 +20,7 @@ #define show_dev(dev) MAJOR(dev), MINOR(dev) TRACE_EVENT(zonefs_zone_mgmt, - TP_PROTO(struct inode *inode, enum req_opf op), + TP_PROTO(struct inode *inode, enum req_op op), TP_ARGS(inode, op), TP_STRUCT__entry( __field(dev_t, dev) diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index a24d4078fb21..0e6a2af7ed3d 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -337,8 +337,12 @@ enum { typedef __u32 __bitwise blk_mq_req_flags_t; -/* - * Operations and flags common to the bio and request structures. +#define REQ_OP_BITS 8 +#define REQ_OP_MASK ((1 << REQ_OP_BITS) - 1) +#define REQ_FLAG_BITS 24 + +/** + * enum req_op - Operations common to the bio and request structures. * We use 8 bits for encoding the operation, and the remaining 24 for flags. * * The least significant bit of the operation number indicates the data @@ -350,11 +354,7 @@ typedef __u32 __bitwise blk_mq_req_flags_t; * If a operation does not transfer data the least significant bit has no * meaning. */ -#define REQ_OP_BITS 8 -#define REQ_OP_MASK ((1 << REQ_OP_BITS) - 1) -#define REQ_FLAG_BITS 24 - -enum req_opf { +enum req_op { /* read sectors from the device */ REQ_OP_READ = 0, /* write sectors to the device */ @@ -509,7 +509,7 @@ static inline bool op_is_discard(unsigned int op) * due to its different handling in the block layer and device response in * case of command failure. */ -static inline bool op_is_zone_mgmt(enum req_opf op) +static inline bool op_is_zone_mgmt(enum req_op op) { switch (op & REQ_OP_MASK) { case REQ_OP_ZONE_RESET: diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 2775763c51b9..ec072a5129bf 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -322,7 +322,7 @@ void disk_set_zoned(struct gendisk *disk, enum blk_zoned_model model); int blkdev_report_zones(struct block_device *bdev, sector_t sector, unsigned int nr_zones, report_zones_cb cb, void *data); unsigned int bdev_nr_zones(struct block_device *bdev); -extern int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op, +extern int blkdev_zone_mgmt(struct block_device *bdev, enum req_op op, sector_t sectors, sector_t nr_sectors, gfp_t gfp_mask); int blk_revalidate_disk_zones(struct gendisk *disk, -- cgit v1.2.3 From 3ae7286943ae6f6bfecfe0a3da9d1a4c64f5531f Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:12 -0700 Subject: fs/buffer: Use the new blk_opf_t type Improve static type checking by using the new blk_opf_t type for block layer request flags. Change WRITE into REQ_OP_WRITE. This patch does not change any functionality since REQ_OP_WRITE == WRITE == 1. Reviewed-by: Jan Kara Cc: Al Viro Cc: Christoph Hellwig Cc: Matthew Wilcox Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-47-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/buffer.c | 21 +++++++++++---------- include/linux/buffer_head.h | 9 +++++---- 2 files changed, 16 insertions(+), 14 deletions(-) (limited to 'fs') diff --git a/fs/buffer.c b/fs/buffer.c index 898c7f301b1b..4a00b61f35ec 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -52,8 +52,8 @@ #include "internal.h" static int fsync_buffers_list(spinlock_t *lock, struct list_head *list); -static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh, - struct writeback_control *wbc); +static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags, + struct buffer_head *bh, struct writeback_control *wbc); #define BH_ENTRY(list) list_entry((list), struct buffer_head, b_assoc_buffers) @@ -1716,7 +1716,7 @@ int __block_write_full_page(struct inode *inode, struct page *page, struct buffer_head *bh, *head; unsigned int blocksize, bbits; int nr_underway = 0; - int write_flags = wbc_to_write_flags(wbc); + blk_opf_t write_flags = wbc_to_write_flags(wbc); head = create_page_buffers(page, inode, (1 << BH_Dirty)|(1 << BH_Uptodate)); @@ -2994,8 +2994,8 @@ static void end_bio_bh_io_sync(struct bio *bio) bio_put(bio); } -static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh, - struct writeback_control *wbc) +static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags, + struct buffer_head *bh, struct writeback_control *wbc) { struct bio *bio; @@ -3040,7 +3040,7 @@ static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh, return 0; } -int submit_bh(int op, int op_flags, struct buffer_head *bh) +int submit_bh(enum req_op op, blk_opf_t op_flags, struct buffer_head *bh) { return submit_bh_wbc(op, op_flags, bh, NULL); } @@ -3072,7 +3072,8 @@ EXPORT_SYMBOL(submit_bh); * All of the buffers must be for the same device, and must also be a * multiple of the current approved size for the device. */ -void ll_rw_block(int op, int op_flags, int nr, struct buffer_head *bhs[]) +void ll_rw_block(enum req_op op, blk_opf_t op_flags, int nr, + struct buffer_head *bhs[]) { int i; @@ -3081,7 +3082,7 @@ void ll_rw_block(int op, int op_flags, int nr, struct buffer_head *bhs[]) if (!trylock_buffer(bh)) continue; - if (op == WRITE) { + if (op == REQ_OP_WRITE) { if (test_clear_buffer_dirty(bh)) { bh->b_end_io = end_buffer_write_sync; get_bh(bh); @@ -3101,7 +3102,7 @@ void ll_rw_block(int op, int op_flags, int nr, struct buffer_head *bhs[]) } EXPORT_SYMBOL(ll_rw_block); -void write_dirty_buffer(struct buffer_head *bh, int op_flags) +void write_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags) { lock_buffer(bh); if (!test_clear_buffer_dirty(bh)) { @@ -3119,7 +3120,7 @@ EXPORT_SYMBOL(write_dirty_buffer); * and then start new I/O and then wait upon it. The caller must have a ref on * the buffer_head. */ -int __sync_dirty_buffer(struct buffer_head *bh, int op_flags) +int __sync_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags) { int ret = 0; diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index c9d1463bb20f..9795df9400bd 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -9,6 +9,7 @@ #define _LINUX_BUFFER_HEAD_H #include +#include #include #include #include @@ -201,11 +202,11 @@ struct buffer_head *alloc_buffer_head(gfp_t gfp_flags); void free_buffer_head(struct buffer_head * bh); void unlock_buffer(struct buffer_head *bh); void __lock_buffer(struct buffer_head *bh); -void ll_rw_block(int, int, int, struct buffer_head * bh[]); +void ll_rw_block(enum req_op, blk_opf_t, int, struct buffer_head * bh[]); int sync_dirty_buffer(struct buffer_head *bh); -int __sync_dirty_buffer(struct buffer_head *bh, int op_flags); -void write_dirty_buffer(struct buffer_head *bh, int op_flags); -int submit_bh(int, int, struct buffer_head *); +int __sync_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags); +void write_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags); +int submit_bh(enum req_op, blk_opf_t, struct buffer_head *); void write_boundary_block(struct block_device *bdev, sector_t bblock, unsigned blocksize); int bh_uptodate_or_lock(struct buffer_head *bh); -- cgit v1.2.3 From 1420c4a549bf28ffddbed827d61fb3d4d2132ddb Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:13 -0700 Subject: fs/buffer: Combine two submit_bh() and ll_rw_block() arguments Both submit_bh() and ll_rw_block() accept a request operation type and request flags as their first two arguments. Micro-optimize these two functions by combining these first two arguments into a single argument. This patch does not change the behavior of any of the modified code. Cc: Alexander Viro Cc: Jan Kara Acked-by: Song Liu (for the md changes) Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-48-bvanassche@acm.org Signed-off-by: Jens Axboe --- drivers/md/md-bitmap.c | 4 ++-- fs/buffer.c | 53 +++++++++++++++++++++++---------------------- fs/ext4/fast_commit.c | 2 +- fs/ext4/mmp.c | 2 +- fs/ext4/super.c | 6 ++--- fs/gfs2/bmap.c | 5 ++--- fs/gfs2/dir.c | 5 ++--- fs/gfs2/meta_io.c | 9 ++++---- fs/gfs2/quota.c | 2 +- fs/isofs/compress.c | 2 +- fs/jbd2/commit.c | 8 +++---- fs/jbd2/journal.c | 4 ++-- fs/jbd2/recovery.c | 4 ++-- fs/nilfs2/btnode.c | 2 +- fs/nilfs2/gcinode.c | 2 +- fs/nilfs2/mdt.c | 2 +- fs/ntfs/aops.c | 6 ++--- fs/ntfs/compress.c | 2 +- fs/ntfs/file.c | 2 +- fs/ntfs/logfile.c | 2 +- fs/ntfs/mft.c | 4 ++-- fs/ntfs3/file.c | 2 +- fs/ntfs3/inode.c | 2 +- fs/ocfs2/aops.c | 2 +- fs/ocfs2/buffer_head_io.c | 8 +++---- fs/ocfs2/super.c | 2 +- fs/reiserfs/inode.c | 4 ++-- fs/reiserfs/journal.c | 12 +++++----- fs/reiserfs/stree.c | 4 ++-- fs/reiserfs/super.c | 2 +- fs/udf/dir.c | 2 +- fs/udf/directory.c | 2 +- fs/udf/inode.c | 2 +- fs/ufs/balloc.c | 2 +- include/linux/buffer_head.h | 4 ++-- 35 files changed, 88 insertions(+), 90 deletions(-) (limited to 'fs') diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c index 0a21b8317103..bf6dffadbe6f 100644 --- a/drivers/md/md-bitmap.c +++ b/drivers/md/md-bitmap.c @@ -302,7 +302,7 @@ static void write_page(struct bitmap *bitmap, struct page *page, int wait) atomic_inc(&bitmap->pending_writes); set_buffer_locked(bh); set_buffer_mapped(bh); - submit_bh(REQ_OP_WRITE, REQ_SYNC, bh); + submit_bh(REQ_OP_WRITE | REQ_SYNC, bh); bh = bh->b_this_page; } @@ -394,7 +394,7 @@ static int read_page(struct file *file, unsigned long index, atomic_inc(&bitmap->pending_writes); set_buffer_locked(bh); set_buffer_mapped(bh); - submit_bh(REQ_OP_READ, 0, bh); + submit_bh(REQ_OP_READ, bh); } blk_cur++; bh = bh->b_this_page; diff --git a/fs/buffer.c b/fs/buffer.c index 4a00b61f35ec..af53569930bb 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -52,8 +52,8 @@ #include "internal.h" static int fsync_buffers_list(spinlock_t *lock, struct list_head *list); -static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags, - struct buffer_head *bh, struct writeback_control *wbc); +static int submit_bh_wbc(blk_opf_t opf, struct buffer_head *bh, + struct writeback_control *wbc); #define BH_ENTRY(list) list_entry((list), struct buffer_head, b_assoc_buffers) @@ -562,7 +562,7 @@ void write_boundary_block(struct block_device *bdev, struct buffer_head *bh = __find_get_block(bdev, bblock + 1, blocksize); if (bh) { if (buffer_dirty(bh)) - ll_rw_block(REQ_OP_WRITE, 0, 1, &bh); + ll_rw_block(REQ_OP_WRITE, 1, &bh); put_bh(bh); } } @@ -1174,7 +1174,7 @@ static struct buffer_head *__bread_slow(struct buffer_head *bh) } else { get_bh(bh); bh->b_end_io = end_buffer_read_sync; - submit_bh(REQ_OP_READ, 0, bh); + submit_bh(REQ_OP_READ, bh); wait_on_buffer(bh); if (buffer_uptodate(bh)) return bh; @@ -1342,7 +1342,7 @@ void __breadahead(struct block_device *bdev, sector_t block, unsigned size) { struct buffer_head *bh = __getblk(bdev, block, size); if (likely(bh)) { - ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, &bh); + ll_rw_block(REQ_OP_READ | REQ_RAHEAD, 1, &bh); brelse(bh); } } @@ -1353,7 +1353,7 @@ void __breadahead_gfp(struct block_device *bdev, sector_t block, unsigned size, { struct buffer_head *bh = __getblk_gfp(bdev, block, size, gfp); if (likely(bh)) { - ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, &bh); + ll_rw_block(REQ_OP_READ | REQ_RAHEAD, 1, &bh); brelse(bh); } } @@ -1804,7 +1804,7 @@ int __block_write_full_page(struct inode *inode, struct page *page, do { struct buffer_head *next = bh->b_this_page; if (buffer_async_write(bh)) { - submit_bh_wbc(REQ_OP_WRITE, write_flags, bh, wbc); + submit_bh_wbc(REQ_OP_WRITE | write_flags, bh, wbc); nr_underway++; } bh = next; @@ -1858,7 +1858,7 @@ recover: struct buffer_head *next = bh->b_this_page; if (buffer_async_write(bh)) { clear_buffer_dirty(bh); - submit_bh_wbc(REQ_OP_WRITE, write_flags, bh, wbc); + submit_bh_wbc(REQ_OP_WRITE | write_flags, bh, wbc); nr_underway++; } bh = next; @@ -2033,7 +2033,7 @@ int __block_write_begin_int(struct folio *folio, loff_t pos, unsigned len, if (!buffer_uptodate(bh) && !buffer_delay(bh) && !buffer_unwritten(bh) && (block_start < from || block_end > to)) { - ll_rw_block(REQ_OP_READ, 0, 1, &bh); + ll_rw_block(REQ_OP_READ, 1, &bh); *wait_bh++=bh; } } @@ -2334,7 +2334,7 @@ int block_read_full_folio(struct folio *folio, get_block_t *get_block) if (buffer_uptodate(bh)) end_buffer_async_read(bh, 1); else - submit_bh(REQ_OP_READ, 0, bh); + submit_bh(REQ_OP_READ, bh); } return 0; } @@ -2665,7 +2665,7 @@ int nobh_write_begin(struct address_space *mapping, loff_t pos, unsigned len, if (block_start < from || block_end > to) { lock_buffer(bh); bh->b_end_io = end_buffer_read_nobh; - submit_bh(REQ_OP_READ, 0, bh); + submit_bh(REQ_OP_READ, bh); nr_reads++; } } @@ -2915,7 +2915,7 @@ int block_truncate_page(struct address_space *mapping, if (!buffer_uptodate(bh) && !buffer_delay(bh) && !buffer_unwritten(bh)) { err = -EIO; - ll_rw_block(REQ_OP_READ, 0, 1, &bh); + ll_rw_block(REQ_OP_READ, 1, &bh); wait_on_buffer(bh); /* Uhhuh. Read error. Complain and punt. */ if (!buffer_uptodate(bh)) @@ -2994,9 +2994,10 @@ static void end_bio_bh_io_sync(struct bio *bio) bio_put(bio); } -static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags, - struct buffer_head *bh, struct writeback_control *wbc) +static int submit_bh_wbc(blk_opf_t opf, struct buffer_head *bh, + struct writeback_control *wbc) { + const enum req_op op = opf & REQ_OP_MASK; struct bio *bio; BUG_ON(!buffer_locked(bh)); @@ -3012,11 +3013,11 @@ static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags, clear_buffer_write_io_error(bh); if (buffer_meta(bh)) - op_flags |= REQ_META; + opf |= REQ_META; if (buffer_prio(bh)) - op_flags |= REQ_PRIO; + opf |= REQ_PRIO; - bio = bio_alloc(bh->b_bdev, 1, op | op_flags, GFP_NOIO); + bio = bio_alloc(bh->b_bdev, 1, opf, GFP_NOIO); fscrypt_set_bio_crypt_ctx_bh(bio, bh, GFP_NOIO); @@ -3040,9 +3041,9 @@ static int submit_bh_wbc(enum req_op op, blk_opf_t op_flags, return 0; } -int submit_bh(enum req_op op, blk_opf_t op_flags, struct buffer_head *bh) +int submit_bh(blk_opf_t opf, struct buffer_head *bh) { - return submit_bh_wbc(op, op_flags, bh, NULL); + return submit_bh_wbc(opf, bh, NULL); } EXPORT_SYMBOL(submit_bh); @@ -3072,9 +3073,9 @@ EXPORT_SYMBOL(submit_bh); * All of the buffers must be for the same device, and must also be a * multiple of the current approved size for the device. */ -void ll_rw_block(enum req_op op, blk_opf_t op_flags, int nr, - struct buffer_head *bhs[]) +void ll_rw_block(const blk_opf_t opf, int nr, struct buffer_head *bhs[]) { + const enum req_op op = opf & REQ_OP_MASK; int i; for (i = 0; i < nr; i++) { @@ -3086,14 +3087,14 @@ void ll_rw_block(enum req_op op, blk_opf_t op_flags, int nr, if (test_clear_buffer_dirty(bh)) { bh->b_end_io = end_buffer_write_sync; get_bh(bh); - submit_bh(op, op_flags, bh); + submit_bh(opf, bh); continue; } } else { if (!buffer_uptodate(bh)) { bh->b_end_io = end_buffer_read_sync; get_bh(bh); - submit_bh(op, op_flags, bh); + submit_bh(opf, bh); continue; } } @@ -3111,7 +3112,7 @@ void write_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags) } bh->b_end_io = end_buffer_write_sync; get_bh(bh); - submit_bh(REQ_OP_WRITE, op_flags, bh); + submit_bh(REQ_OP_WRITE | op_flags, bh); } EXPORT_SYMBOL(write_dirty_buffer); @@ -3138,7 +3139,7 @@ int __sync_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags) get_bh(bh); bh->b_end_io = end_buffer_write_sync; - ret = submit_bh(REQ_OP_WRITE, op_flags, bh); + ret = submit_bh(REQ_OP_WRITE | op_flags, bh); wait_on_buffer(bh); if (!ret && !buffer_uptodate(bh)) ret = -EIO; @@ -3366,7 +3367,7 @@ int bh_submit_read(struct buffer_head *bh) get_bh(bh); bh->b_end_io = end_buffer_read_sync; - submit_bh(REQ_OP_READ, 0, bh); + submit_bh(REQ_OP_READ, bh); wait_on_buffer(bh); if (buffer_uptodate(bh)) return 0; diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c index 795a60ad1897..0df5482c6c1c 100644 --- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -668,7 +668,7 @@ static void ext4_fc_submit_bh(struct super_block *sb, bool is_tail) set_buffer_dirty(bh); set_buffer_uptodate(bh); bh->b_end_io = ext4_end_buffer_io_sync; - submit_bh(REQ_OP_WRITE, write_flags, bh); + submit_bh(REQ_OP_WRITE | write_flags, bh); EXT4_SB(sb)->s_fc_bh = NULL; } diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index b221f313ded6..9af68a7ecdcf 100644 --- a/fs/ext4/mmp.c +++ b/fs/ext4/mmp.c @@ -52,7 +52,7 @@ static int write_mmp_block(struct super_block *sb, struct buffer_head *bh) lock_buffer(bh); bh->b_end_io = end_buffer_write_sync; get_bh(bh); - submit_bh(REQ_OP_WRITE, REQ_SYNC | REQ_META | REQ_PRIO, bh); + submit_bh(REQ_OP_WRITE | REQ_SYNC | REQ_META | REQ_PRIO, bh); wait_on_buffer(bh); sb_end_write(sb); if (unlikely(!buffer_uptodate(bh))) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 845f2f8aee5f..24922184b622 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -171,7 +171,7 @@ static inline void __ext4_read_bh(struct buffer_head *bh, int op_flags, bh->b_end_io = end_io ? end_io : end_buffer_read_sync; get_bh(bh); - submit_bh(REQ_OP_READ, op_flags, bh); + submit_bh(REQ_OP_READ | op_flags, bh); } void ext4_read_bh_nowait(struct buffer_head *bh, int op_flags, @@ -5939,8 +5939,8 @@ static int ext4_commit_super(struct super_block *sb) /* Clear potential dirty bit if it was journalled update */ clear_buffer_dirty(sbh); sbh->b_end_io = end_buffer_write_sync; - submit_bh(REQ_OP_WRITE, - REQ_SYNC | (test_opt(sb, BARRIER) ? REQ_FUA : 0), sbh); + submit_bh(REQ_OP_WRITE | REQ_SYNC | + (test_opt(sb, BARRIER) ? REQ_FUA : 0), sbh); wait_on_buffer(sbh); if (buffer_write_io_error(sbh)) { ext4_msg(sb, KERN_ERR, "I/O error while writing " diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index b6697333bb2b..3bdb2c668a71 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -310,9 +310,8 @@ static void gfs2_metapath_ra(struct gfs2_glock *gl, __be64 *start, __be64 *end) if (trylock_buffer(rabh)) { if (!buffer_uptodate(rabh)) { rabh->b_end_io = end_buffer_read_sync; - submit_bh(REQ_OP_READ, - REQ_RAHEAD | REQ_META | REQ_PRIO, - rabh); + submit_bh(REQ_OP_READ | REQ_RAHEAD | REQ_META | + REQ_PRIO, rabh); continue; } unlock_buffer(rabh); diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c index 42b7dfffb5e7..a0562dd1bada 100644 --- a/fs/gfs2/dir.c +++ b/fs/gfs2/dir.c @@ -1508,9 +1508,8 @@ static void gfs2_dir_readahead(struct inode *inode, unsigned hsize, u32 index, continue; } bh->b_end_io = end_buffer_read_sync; - submit_bh(REQ_OP_READ, - REQ_RAHEAD | REQ_META | REQ_PRIO, - bh); + submit_bh(REQ_OP_READ | REQ_RAHEAD | REQ_META | + REQ_PRIO, bh); continue; } brelse(bh); diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index 868dcc71b581..3570739f005d 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -75,7 +75,7 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb do { struct buffer_head *next = bh->b_this_page; if (buffer_async_write(bh)) { - submit_bh(REQ_OP_WRITE, write_flags, bh); + submit_bh(REQ_OP_WRITE | write_flags, bh); nr_underway++; } bh = next; @@ -527,7 +527,7 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen) if (buffer_uptodate(first_bh)) goto out; if (!buffer_locked(first_bh)) - ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1, &first_bh); + ll_rw_block(REQ_OP_READ | REQ_META | REQ_PRIO, 1, &first_bh); dblock++; extlen--; @@ -536,9 +536,8 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen) bh = gfs2_getbuf(gl, dblock, CREATE); if (!buffer_uptodate(bh) && !buffer_locked(bh)) - ll_rw_block(REQ_OP_READ, - REQ_RAHEAD | REQ_META | REQ_PRIO, - 1, &bh); + ll_rw_block(REQ_OP_READ | REQ_RAHEAD | REQ_META | + REQ_PRIO, 1, &bh); brelse(bh); dblock++; extlen--; diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 59d727a4ae2c..c98a7faa67d3 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -746,7 +746,7 @@ static int gfs2_write_buf_to_page(struct gfs2_inode *ip, unsigned long index, if (PageUptodate(page)) set_buffer_uptodate(bh); if (!buffer_uptodate(bh)) { - ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1, &bh); + ll_rw_block(REQ_OP_READ | REQ_META | REQ_PRIO, 1, &bh); wait_on_buffer(bh); if (!buffer_uptodate(bh)) goto unlock_out; diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c index 95a19f25d61c..b466172eec25 100644 --- a/fs/isofs/compress.c +++ b/fs/isofs/compress.c @@ -82,7 +82,7 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start, return 0; } haveblocks = isofs_get_blocks(inode, blocknum, bhs, needblocks); - ll_rw_block(REQ_OP_READ, 0, haveblocks, bhs); + ll_rw_block(REQ_OP_READ, haveblocks, bhs); curbh = 0; curpage = 0; diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index eb315e81f1a6..890b5543a1c5 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -155,10 +155,10 @@ static int journal_submit_commit_record(journal_t *journal, if (journal->j_flags & JBD2_BARRIER && !jbd2_has_feature_async_commit(journal)) - ret = submit_bh(REQ_OP_WRITE, - REQ_SYNC | REQ_PREFLUSH | REQ_FUA, bh); + ret = submit_bh(REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH | + REQ_FUA, bh); else - ret = submit_bh(REQ_OP_WRITE, REQ_SYNC, bh); + ret = submit_bh(REQ_OP_WRITE | REQ_SYNC, bh); *cbh = bh; return ret; @@ -763,7 +763,7 @@ start_journal_io: clear_buffer_dirty(bh); set_buffer_uptodate(bh); bh->b_end_io = journal_end_buffer_io_sync; - submit_bh(REQ_OP_WRITE, REQ_SYNC, bh); + submit_bh(REQ_OP_WRITE | REQ_SYNC, bh); } cond_resched(); diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 9015f5fa2862..07e6aaf7e213 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1638,7 +1638,7 @@ static int jbd2_write_superblock(journal_t *journal, int write_flags) sb->s_checksum = jbd2_superblock_csum(journal, sb); get_bh(bh); bh->b_end_io = end_buffer_write_sync; - ret = submit_bh(REQ_OP_WRITE, write_flags, bh); + ret = submit_bh(REQ_OP_WRITE | write_flags, bh); wait_on_buffer(bh); if (buffer_write_io_error(bh)) { clear_buffer_write_io_error(bh); @@ -1900,7 +1900,7 @@ static int journal_get_superblock(journal_t *journal) J_ASSERT(bh != NULL); if (!buffer_uptodate(bh)) { - ll_rw_block(REQ_OP_READ, 0, 1, &bh); + ll_rw_block(REQ_OP_READ, 1, &bh); wait_on_buffer(bh); if (!buffer_uptodate(bh)) { printk(KERN_ERR diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c index 8ca3527189f8..e699d6ab2c0e 100644 --- a/fs/jbd2/recovery.c +++ b/fs/jbd2/recovery.c @@ -100,7 +100,7 @@ static int do_readahead(journal_t *journal, unsigned int start) if (!buffer_uptodate(bh) && !buffer_locked(bh)) { bufs[nbufs++] = bh; if (nbufs == MAXBUF) { - ll_rw_block(REQ_OP_READ, 0, nbufs, bufs); + ll_rw_block(REQ_OP_READ, nbufs, bufs); journal_brelse_array(bufs, nbufs); nbufs = 0; } @@ -109,7 +109,7 @@ static int do_readahead(journal_t *journal, unsigned int start) } if (nbufs) - ll_rw_block(REQ_OP_READ, 0, nbufs, bufs); + ll_rw_block(REQ_OP_READ, nbufs, bufs); err = 0; failed: diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c index ca611ac09f7c..5c39efbf733f 100644 --- a/fs/nilfs2/btnode.c +++ b/fs/nilfs2/btnode.c @@ -122,7 +122,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr, bh->b_blocknr = pblocknr; /* set block address for read */ bh->b_end_io = end_buffer_read_sync; get_bh(bh); - submit_bh(mode, mode_flags, bh); + submit_bh(mode | mode_flags, bh); bh->b_blocknr = blocknr; /* set back to the given block address */ *submit_ptr = pblocknr; err = 0; diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c index 04fdd420eae7..847def8af315 100644 --- a/fs/nilfs2/gcinode.c +++ b/fs/nilfs2/gcinode.c @@ -92,7 +92,7 @@ int nilfs_gccache_submit_read_data(struct inode *inode, sector_t blkoff, bh->b_blocknr = pbn; bh->b_end_io = end_buffer_read_sync; get_bh(bh); - submit_bh(REQ_OP_READ, 0, bh); + submit_bh(REQ_OP_READ, bh); if (vbn) bh->b_blocknr = vbn; out: diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c index d29a0f2b9c16..66e8811c2528 100644 --- a/fs/nilfs2/mdt.c +++ b/fs/nilfs2/mdt.c @@ -148,7 +148,7 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff, bh->b_end_io = end_buffer_read_sync; get_bh(bh); - submit_bh(mode, mode_flags, bh); + submit_bh(mode | mode_flags, bh); ret = 0; trace_nilfs2_mdt_submit_block(inode, inode->i_ino, blkoff, mode); diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c index 9e3964ea2ea0..b5765fdb3a47 100644 --- a/fs/ntfs/aops.c +++ b/fs/ntfs/aops.c @@ -342,7 +342,7 @@ handle_zblock: for (i = 0; i < nr; i++) { tbh = arr[i]; if (likely(!buffer_uptodate(tbh))) - submit_bh(REQ_OP_READ, 0, tbh); + submit_bh(REQ_OP_READ, tbh); else ntfs_end_buffer_async_read(tbh, 1); } @@ -859,7 +859,7 @@ lock_retry_remap: do { struct buffer_head *next = bh->b_this_page; if (buffer_async_write(bh)) { - submit_bh(REQ_OP_WRITE, 0, bh); + submit_bh(REQ_OP_WRITE, bh); need_end_writeback = false; } bh = next; @@ -1187,7 +1187,7 @@ lock_retry_remap: BUG_ON(!buffer_mapped(tbh)); get_bh(tbh); tbh->b_end_io = end_buffer_write_sync; - submit_bh(REQ_OP_WRITE, 0, tbh); + submit_bh(REQ_OP_WRITE, tbh); } /* Synchronize the mft mirror now if not @sync. */ if (is_mft && !sync) diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c index a60f543e7557..587e9b187873 100644 --- a/fs/ntfs/compress.c +++ b/fs/ntfs/compress.c @@ -658,7 +658,7 @@ lock_retry_remap: } get_bh(tbh); tbh->b_end_io = end_buffer_read_sync; - submit_bh(REQ_OP_READ, 0, tbh); + submit_bh(REQ_OP_READ, tbh); } /* Wait for io completion on all buffer heads. */ diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c index a8abe2296514..46ed69b86c33 100644 --- a/fs/ntfs/file.c +++ b/fs/ntfs/file.c @@ -537,7 +537,7 @@ static inline int ntfs_submit_bh_for_read(struct buffer_head *bh) lock_buffer(bh); get_bh(bh); bh->b_end_io = end_buffer_read_sync; - return submit_bh(REQ_OP_READ, 0, bh); + return submit_bh(REQ_OP_READ, bh); } /** diff --git a/fs/ntfs/logfile.c b/fs/ntfs/logfile.c index bc1bf217b38e..6ce60ffc6ac0 100644 --- a/fs/ntfs/logfile.c +++ b/fs/ntfs/logfile.c @@ -807,7 +807,7 @@ map_vcn: * completed ignore errors afterwards as we can assume * that if one buffer worked all of them will work. */ - submit_bh(REQ_OP_WRITE, 0, bh); + submit_bh(REQ_OP_WRITE, bh); if (should_wait) { should_wait = false; wait_on_buffer(bh); diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c index 0d62cd5bb7f8..f7bf5ce960cc 100644 --- a/fs/ntfs/mft.c +++ b/fs/ntfs/mft.c @@ -583,7 +583,7 @@ int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned long mft_no, clear_buffer_dirty(tbh); get_bh(tbh); tbh->b_end_io = end_buffer_write_sync; - submit_bh(REQ_OP_WRITE, 0, tbh); + submit_bh(REQ_OP_WRITE, tbh); } /* Wait on i/o completion of buffers. */ for (i_bhs = 0; i_bhs < nr_bhs; i_bhs++) { @@ -780,7 +780,7 @@ int write_mft_record_nolock(ntfs_inode *ni, MFT_RECORD *m, int sync) clear_buffer_dirty(tbh); get_bh(tbh); tbh->b_end_io = end_buffer_write_sync; - submit_bh(REQ_OP_WRITE, 0, tbh); + submit_bh(REQ_OP_WRITE, tbh); } /* Synchronize the mft mirror now if not @sync. */ if (!sync && ni->mft_no < vol->mftmirr_size) diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c index 8e9d2b35175f..4a21745711fe 100644 --- a/fs/ntfs3/file.c +++ b/fs/ntfs3/file.c @@ -242,7 +242,7 @@ static int ntfs_zero_range(struct inode *inode, u64 vbo, u64 vbo_to) lock_buffer(bh); bh->b_end_io = end_buffer_read_sync; get_bh(bh); - submit_bh(REQ_OP_READ, 0, bh); + submit_bh(REQ_OP_READ, bh); wait_on_buffer(bh); if (!buffer_uptodate(bh)) { diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c index be4ebdd8048b..d100a063def2 100644 --- a/fs/ntfs3/inode.c +++ b/fs/ntfs3/inode.c @@ -629,7 +629,7 @@ static noinline int ntfs_get_block_vbo(struct inode *inode, u64 vbo, bh->b_size = block_size; off = vbo & (PAGE_SIZE - 1); set_bh_page(bh, page, off); - ll_rw_block(REQ_OP_READ, 0, 1, &bh); + ll_rw_block(REQ_OP_READ, 1, &bh); wait_on_buffer(bh); if (!buffer_uptodate(bh)) { err = -EIO; diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 35d40a67204c..304ed2be1b83 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -638,7 +638,7 @@ int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno, !buffer_new(bh) && ocfs2_should_read_blk(inode, page, block_start) && (block_start < from || block_end > to)) { - ll_rw_block(REQ_OP_READ, 0, 1, &bh); + ll_rw_block(REQ_OP_READ, 1, &bh); *wait_bh++=bh; } diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c index e7758778abef..196638a22b48 100644 --- a/fs/ocfs2/buffer_head_io.c +++ b/fs/ocfs2/buffer_head_io.c @@ -64,7 +64,7 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh, get_bh(bh); /* for end_buffer_write_sync() */ bh->b_end_io = end_buffer_write_sync; - submit_bh(REQ_OP_WRITE, 0, bh); + submit_bh(REQ_OP_WRITE, bh); wait_on_buffer(bh); @@ -147,7 +147,7 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block, get_bh(bh); /* for end_buffer_read_sync() */ bh->b_end_io = end_buffer_read_sync; - submit_bh(REQ_OP_READ, 0, bh); + submit_bh(REQ_OP_READ, bh); } read_failure: @@ -328,7 +328,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, if (validate) set_buffer_needs_validate(bh); bh->b_end_io = end_buffer_read_sync; - submit_bh(REQ_OP_READ, 0, bh); + submit_bh(REQ_OP_READ, bh); continue; } } @@ -449,7 +449,7 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb, get_bh(bh); /* for end_buffer_write_sync() */ bh->b_end_io = end_buffer_write_sync; ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &di->i_check); - submit_bh(REQ_OP_WRITE, 0, bh); + submit_bh(REQ_OP_WRITE, bh); wait_on_buffer(bh); diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index f7298816d8d9..e68807196076 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1785,7 +1785,7 @@ static int ocfs2_get_sector(struct super_block *sb, if (!buffer_dirty(*bh)) clear_buffer_uptodate(*bh); unlock_buffer(*bh); - ll_rw_block(REQ_OP_READ, 0, 1, bh); + ll_rw_block(REQ_OP_READ, 1, bh); wait_on_buffer(*bh); if (!buffer_uptodate(*bh)) { mlog_errno(-EIO); diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 0cffe054b78e..23f542d1748b 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -2664,7 +2664,7 @@ static int reiserfs_write_full_page(struct page *page, do { struct buffer_head *next = bh->b_this_page; if (buffer_async_write(bh)) { - submit_bh(REQ_OP_WRITE, 0, bh); + submit_bh(REQ_OP_WRITE, bh); nr++; } put_bh(bh); @@ -2724,7 +2724,7 @@ fail: struct buffer_head *next = bh->b_this_page; if (buffer_async_write(bh)) { clear_buffer_dirty(bh); - submit_bh(REQ_OP_WRITE, 0, bh); + submit_bh(REQ_OP_WRITE, bh); nr++; } put_bh(bh); diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index d8cc9a366124..94addfcefede 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -650,7 +650,7 @@ static void submit_logged_buffer(struct buffer_head *bh) BUG(); if (!buffer_uptodate(bh)) BUG(); - submit_bh(REQ_OP_WRITE, 0, bh); + submit_bh(REQ_OP_WRITE, bh); } static void submit_ordered_buffer(struct buffer_head *bh) @@ -660,7 +660,7 @@ static void submit_ordered_buffer(struct buffer_head *bh) clear_buffer_dirty(bh); if (!buffer_uptodate(bh)) BUG(); - submit_bh(REQ_OP_WRITE, 0, bh); + submit_bh(REQ_OP_WRITE, bh); } #define CHUNK_SIZE 32 @@ -868,7 +868,7 @@ loop_next: */ if (buffer_dirty(bh) && unlikely(bh->b_page->mapping == NULL)) { spin_unlock(lock); - ll_rw_block(REQ_OP_WRITE, 0, 1, &bh); + ll_rw_block(REQ_OP_WRITE, 1, &bh); spin_lock(lock); } put_bh(bh); @@ -1054,7 +1054,7 @@ static int flush_commit_list(struct super_block *s, if (tbh) { if (buffer_dirty(tbh)) { depth = reiserfs_write_unlock_nested(s); - ll_rw_block(REQ_OP_WRITE, 0, 1, &tbh); + ll_rw_block(REQ_OP_WRITE, 1, &tbh); reiserfs_write_lock_nested(s, depth); } put_bh(tbh) ; @@ -2240,7 +2240,7 @@ abort_replay: } } /* read in the log blocks, memcpy to the corresponding real block */ - ll_rw_block(REQ_OP_READ, 0, get_desc_trans_len(desc), log_blocks); + ll_rw_block(REQ_OP_READ, get_desc_trans_len(desc), log_blocks); for (i = 0; i < get_desc_trans_len(desc); i++) { wait_on_buffer(log_blocks[i]); @@ -2342,7 +2342,7 @@ static struct buffer_head *reiserfs_breada(struct block_device *dev, } else bhlist[j++] = bh; } - ll_rw_block(REQ_OP_READ, 0, j, bhlist); + ll_rw_block(REQ_OP_READ, j, bhlist); for (i = 1; i < j; i++) brelse(bhlist[i]); bh = bhlist[0]; diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c index ef42729216d1..9a293609a022 100644 --- a/fs/reiserfs/stree.c +++ b/fs/reiserfs/stree.c @@ -579,7 +579,7 @@ static int search_by_key_reada(struct super_block *s, if (!buffer_uptodate(bh[j])) { if (depth == -1) depth = reiserfs_write_unlock_nested(s); - ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, bh + j); + ll_rw_block(REQ_OP_READ | REQ_RAHEAD, 1, bh + j); } brelse(bh[j]); } @@ -685,7 +685,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *key, if (!buffer_uptodate(bh) && depth == -1) depth = reiserfs_write_unlock_nested(sb); - ll_rw_block(REQ_OP_READ, 0, 1, &bh); + ll_rw_block(REQ_OP_READ, 1, &bh); wait_on_buffer(bh); if (depth != -1) diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index cfb7c44c7366..c88cd2ce0665 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -1702,7 +1702,7 @@ static int read_super_block(struct super_block *s, int offset) /* after journal replay, reread all bitmap and super blocks */ static int reread_meta_blocks(struct super_block *s) { - ll_rw_block(REQ_OP_READ, 0, 1, &SB_BUFFER_WITH_SB(s)); + ll_rw_block(REQ_OP_READ, 1, &SB_BUFFER_WITH_SB(s)); wait_on_buffer(SB_BUFFER_WITH_SB(s)); if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) { reiserfs_warning(s, "reiserfs-2504", "error reading the super"); diff --git a/fs/udf/dir.c b/fs/udf/dir.c index 42e3e551fa4c..cad3772f9dbe 100644 --- a/fs/udf/dir.c +++ b/fs/udf/dir.c @@ -130,7 +130,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx) brelse(tmp); } if (num) { - ll_rw_block(REQ_OP_READ, REQ_RAHEAD, num, bha); + ll_rw_block(REQ_OP_READ | REQ_RAHEAD, num, bha); for (i = 0; i < num; i++) brelse(bha[i]); } diff --git a/fs/udf/directory.c b/fs/udf/directory.c index 73720320f0ab..a2adf6293093 100644 --- a/fs/udf/directory.c +++ b/fs/udf/directory.c @@ -89,7 +89,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos, brelse(tmp); } if (num) { - ll_rw_block(REQ_OP_READ, REQ_RAHEAD, num, bha); + ll_rw_block(REQ_OP_READ | REQ_RAHEAD, num, bha); for (i = 0; i < num; i++) brelse(bha[i]); } diff --git a/fs/udf/inode.c b/fs/udf/inode.c index edc88716751a..8d06daed549f 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -1214,7 +1214,7 @@ struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block, if (buffer_uptodate(bh)) return bh; - ll_rw_block(REQ_OP_READ, 0, 1, &bh); + ll_rw_block(REQ_OP_READ, 1, &bh); wait_on_buffer(bh); if (buffer_uptodate(bh)) diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c index 075d3d9114c8..bd810d8239f2 100644 --- a/fs/ufs/balloc.c +++ b/fs/ufs/balloc.c @@ -296,7 +296,7 @@ static void ufs_change_blocknr(struct inode *inode, sector_t beg, if (!buffer_mapped(bh)) map_bh(bh, inode->i_sb, oldb + pos); if (!buffer_uptodate(bh)) { - ll_rw_block(REQ_OP_READ, 0, 1, &bh); + ll_rw_block(REQ_OP_READ, 1, &bh); wait_on_buffer(bh); if (!buffer_uptodate(bh)) { ufs_error(inode->i_sb, __func__, diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 9795df9400bd..bb68eb6407da 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -202,11 +202,11 @@ struct buffer_head *alloc_buffer_head(gfp_t gfp_flags); void free_buffer_head(struct buffer_head * bh); void unlock_buffer(struct buffer_head *bh); void __lock_buffer(struct buffer_head *bh); -void ll_rw_block(enum req_op, blk_opf_t, int, struct buffer_head * bh[]); +void ll_rw_block(blk_opf_t, int, struct buffer_head * bh[]); int sync_dirty_buffer(struct buffer_head *bh); int __sync_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags); void write_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags); -int submit_bh(enum req_op, blk_opf_t, struct buffer_head *); +int submit_bh(blk_opf_t, struct buffer_head *); void write_boundary_block(struct block_device *bdev, sector_t bblock, unsigned blocksize); int bh_uptodate_or_lock(struct buffer_head *bh); -- cgit v1.2.3 From c6293eacfc16fe3d85f468fc7ed91eb18f5861d3 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:14 -0700 Subject: fs/direct-io: Reduce the size of struct dio Reduce the size of struct dio by combining the 'op' and 'op_flags' into the new 'opf' member. Use the new blk_opf_t type to improve static type checking. This patch does not change any functionality. Reviewed-by: Jan Kara Cc: Al Viro Cc: Christoph Hellwig Cc: Darrick J. Wong Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-49-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/direct-io.c | 40 +++++++++++++++++++++++----------------- 1 file changed, 23 insertions(+), 17 deletions(-) (limited to 'fs') diff --git a/fs/direct-io.c b/fs/direct-io.c index 840752006f60..94b71440c332 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -117,8 +117,7 @@ struct dio_submit { /* dio_state communicated between submission path and end_io */ struct dio { int flags; /* doesn't change */ - int op; - int op_flags; + blk_opf_t opf; /* request operation type and flags */ struct gendisk *bio_disk; struct inode *inode; loff_t i_size; /* i_size when submitted */ @@ -167,12 +166,13 @@ static inline unsigned dio_pages_present(struct dio_submit *sdio) */ static inline int dio_refill_pages(struct dio *dio, struct dio_submit *sdio) { + const enum req_op dio_op = dio->opf & REQ_OP_MASK; ssize_t ret; ret = iov_iter_get_pages(sdio->iter, dio->pages, LONG_MAX, DIO_PAGES, &sdio->from); - if (ret < 0 && sdio->blocks_available && (dio->op == REQ_OP_WRITE)) { + if (ret < 0 && sdio->blocks_available && dio_op == REQ_OP_WRITE) { struct page *page = ZERO_PAGE(0); /* * A memory fault, but the filesystem has some outstanding @@ -234,6 +234,7 @@ static inline struct page *dio_get_page(struct dio *dio, */ static ssize_t dio_complete(struct dio *dio, ssize_t ret, unsigned int flags) { + const enum req_op dio_op = dio->opf & REQ_OP_MASK; loff_t offset = dio->iocb->ki_pos; ssize_t transferred = 0; int err; @@ -251,7 +252,7 @@ static ssize_t dio_complete(struct dio *dio, ssize_t ret, unsigned int flags) transferred = dio->result; /* Check for short read case */ - if ((dio->op == REQ_OP_READ) && + if (dio_op == REQ_OP_READ && ((offset + transferred) > dio->i_size)) transferred = dio->i_size - offset; /* ignore EFAULT if some IO has been done */ @@ -286,7 +287,7 @@ static ssize_t dio_complete(struct dio *dio, ssize_t ret, unsigned int flags) * zeros from unwritten extents. */ if (flags & DIO_COMPLETE_INVALIDATE && - ret > 0 && dio->op == REQ_OP_WRITE && + ret > 0 && dio_op == REQ_OP_WRITE && dio->inode->i_mapping->nrpages) { err = invalidate_inode_pages2_range(dio->inode->i_mapping, offset >> PAGE_SHIFT, @@ -305,7 +306,7 @@ static ssize_t dio_complete(struct dio *dio, ssize_t ret, unsigned int flags) */ dio->iocb->ki_pos += transferred; - if (ret > 0 && dio->op == REQ_OP_WRITE) + if (ret > 0 && dio_op == REQ_OP_WRITE) ret = generic_write_sync(dio->iocb, ret); dio->iocb->ki_complete(dio->iocb, ret); } @@ -329,6 +330,7 @@ static blk_status_t dio_bio_complete(struct dio *dio, struct bio *bio); static void dio_bio_end_aio(struct bio *bio) { struct dio *dio = bio->bi_private; + const enum req_op dio_op = dio->opf & REQ_OP_MASK; unsigned long remaining; unsigned long flags; bool defer_completion = false; @@ -353,7 +355,7 @@ static void dio_bio_end_aio(struct bio *bio) */ if (dio->result) defer_completion = dio->defer_completion || - (dio->op == REQ_OP_WRITE && + (dio_op == REQ_OP_WRITE && dio->inode->i_mapping->nrpages); if (defer_completion) { INIT_WORK(&dio->complete_work, dio_aio_complete_work); @@ -396,7 +398,7 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio, * bio_alloc() is guaranteed to return a bio when allowed to sleep and * we request a valid number of vectors. */ - bio = bio_alloc(bdev, nr_vecs, dio->op | dio->op_flags, GFP_KERNEL); + bio = bio_alloc(bdev, nr_vecs, dio->opf, GFP_KERNEL); bio->bi_iter.bi_sector = first_sector; if (dio->is_async) bio->bi_end_io = dio_bio_end_aio; @@ -415,6 +417,7 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio, */ static inline void dio_bio_submit(struct dio *dio, struct dio_submit *sdio) { + const enum req_op dio_op = dio->opf & REQ_OP_MASK; struct bio *bio = sdio->bio; unsigned long flags; @@ -426,7 +429,7 @@ static inline void dio_bio_submit(struct dio *dio, struct dio_submit *sdio) dio->refcount++; spin_unlock_irqrestore(&dio->bio_lock, flags); - if (dio->is_async && dio->op == REQ_OP_READ && dio->should_dirty) + if (dio->is_async && dio_op == REQ_OP_READ && dio->should_dirty) bio_set_pages_dirty(bio); dio->bio_disk = bio->bi_bdev->bd_disk; @@ -492,7 +495,8 @@ static struct bio *dio_await_one(struct dio *dio) static blk_status_t dio_bio_complete(struct dio *dio, struct bio *bio) { blk_status_t err = bio->bi_status; - bool should_dirty = dio->op == REQ_OP_READ && dio->should_dirty; + const enum req_op dio_op = dio->opf & REQ_OP_MASK; + bool should_dirty = dio_op == REQ_OP_READ && dio->should_dirty; if (err) { if (err == BLK_STS_AGAIN && (bio->bi_opf & REQ_NOWAIT)) @@ -619,6 +623,7 @@ static int dio_set_defer_completion(struct dio *dio) static int get_more_blocks(struct dio *dio, struct dio_submit *sdio, struct buffer_head *map_bh) { + const enum req_op dio_op = dio->opf & REQ_OP_MASK; int ret; sector_t fs_startblk; /* Into file, in filesystem-sized blocks */ sector_t fs_endblk; /* Into file, in filesystem-sized blocks */ @@ -653,7 +658,7 @@ static int get_more_blocks(struct dio *dio, struct dio_submit *sdio, * which may decide to handle it or also return an unmapped * buffer head. */ - create = dio->op == REQ_OP_WRITE; + create = dio_op == REQ_OP_WRITE; if (dio->flags & DIO_SKIP_HOLES) { i_size = i_size_read(dio->inode); if (i_size && fs_startblk <= (i_size - 1) >> i_blkbits) @@ -801,10 +806,11 @@ submit_page_section(struct dio *dio, struct dio_submit *sdio, struct page *page, unsigned offset, unsigned len, sector_t blocknr, struct buffer_head *map_bh) { + const enum req_op dio_op = dio->opf & REQ_OP_MASK; int ret = 0; int boundary = sdio->boundary; /* dio_send_cur_page may clear it */ - if (dio->op == REQ_OP_WRITE) { + if (dio_op == REQ_OP_WRITE) { /* * Read accounting is performed in submit_bio() */ @@ -917,6 +923,7 @@ static inline void dio_zero_block(struct dio *dio, struct dio_submit *sdio, static int do_direct_IO(struct dio *dio, struct dio_submit *sdio, struct buffer_head *map_bh) { + const enum req_op dio_op = dio->opf & REQ_OP_MASK; const unsigned blkbits = sdio->blkbits; const unsigned i_blkbits = blkbits + sdio->blkfactor; int ret = 0; @@ -992,7 +999,7 @@ do_holes: loff_t i_size_aligned; /* AKPM: eargh, -ENOTBLK is a hack */ - if (dio->op == REQ_OP_WRITE) { + if (dio_op == REQ_OP_WRITE) { put_page(page); return -ENOTBLK; } @@ -1196,12 +1203,11 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode, dio->inode = inode; if (iov_iter_rw(iter) == WRITE) { - dio->op = REQ_OP_WRITE; - dio->op_flags = REQ_SYNC | REQ_IDLE; + dio->opf = REQ_OP_WRITE | REQ_SYNC | REQ_IDLE; if (iocb->ki_flags & IOCB_NOWAIT) - dio->op_flags |= REQ_NOWAIT; + dio->opf |= REQ_NOWAIT; } else { - dio->op = REQ_OP_READ; + dio->opf = REQ_OP_READ; } /* -- cgit v1.2.3 From f84c94afcf823c6c78438c56c9414763beec50d9 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:15 -0700 Subject: fs/mpage: Use the new blk_opf_t type Improve static type checking by using the new blk_opf_t type for the combination of a block layer request with block layer request flags. Cc: Al Viro Cc: Christoph Hellwig Cc: Matthew Wilcox Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-50-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/mpage.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'fs') diff --git a/fs/mpage.c b/fs/mpage.c index 0d25f44f5707..c6d8bf8c22a5 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -145,13 +145,13 @@ static struct bio *do_mpage_readpage(struct mpage_readpage_args *args) struct block_device *bdev = NULL; int length; int fully_mapped = 1; - int op = REQ_OP_READ; + blk_opf_t opf = REQ_OP_READ; unsigned nblocks; unsigned relative_block; gfp_t gfp = mapping_gfp_constraint(page->mapping, GFP_KERNEL); if (args->is_readahead) { - op |= REQ_RAHEAD; + opf |= REQ_RAHEAD; gfp |= __GFP_NORETRY | __GFP_NOWARN; } @@ -269,7 +269,7 @@ alloc_new: page)) goto out; } - args->bio = bio_alloc(bdev, bio_max_segs(args->nr_pages), op, + args->bio = bio_alloc(bdev, bio_max_segs(args->nr_pages), opf, gfp); if (args->bio == NULL) goto confused; -- cgit v1.2.3 From bf9486d6dd2351f6cfff9a8df87657a1248a918d Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:16 -0700 Subject: fs/btrfs: Use the enum req_op and blk_opf_t types Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for variables that represent request flags. Acked-by: David Sterba Cc: Josef Bacik Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-51-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/btrfs/check-integrity.c | 4 ++-- fs/btrfs/compression.c | 6 +++--- fs/btrfs/compression.h | 2 +- fs/btrfs/extent_io.c | 18 +++++++++--------- fs/btrfs/inode.c | 4 ++-- fs/btrfs/raid56.c | 4 ++-- 6 files changed, 19 insertions(+), 19 deletions(-) (limited to 'fs') diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c index 5d20137b7b67..98c6e5feab19 100644 --- a/fs/btrfs/check-integrity.c +++ b/fs/btrfs/check-integrity.c @@ -152,7 +152,7 @@ struct btrfsic_block { struct btrfsic_block *next_in_same_bio; void *orig_bio_private; bio_end_io_t *orig_bio_end_io; - int submit_bio_bh_rw; + blk_opf_t submit_bio_bh_rw; u64 flush_gen; /* only valid if !never_written */ }; @@ -1681,7 +1681,7 @@ static void btrfsic_process_written_block(struct btrfsic_dev_state *dev_state, u64 dev_bytenr, char **mapped_datav, unsigned int num_pages, struct bio *bio, int *bio_is_patched, - int submit_bio_bh_rw) + blk_opf_t submit_bio_bh_rw) { int is_metadata; struct btrfsic_block *block; diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index f4564f32f6d9..a82b9f17f476 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -455,7 +455,7 @@ static blk_status_t submit_compressed_bio(struct btrfs_fs_info *fs_info, static struct bio *alloc_compressed_bio(struct compressed_bio *cb, u64 disk_bytenr, - unsigned int opf, bio_end_io_t endio_func, + blk_opf_t opf, bio_end_io_t endio_func, u64 *next_stripe_start) { struct btrfs_fs_info *fs_info = btrfs_sb(cb->inode->i_sb); @@ -505,7 +505,7 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start, unsigned int compressed_len, struct page **compressed_pages, unsigned int nr_pages, - unsigned int write_flags, + blk_opf_t write_flags, struct cgroup_subsys_state *blkcg_css, bool writeback) { @@ -517,7 +517,7 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start, blk_status_t ret; int skip_sum = inode->flags & BTRFS_INODE_NODATASUM; const bool use_append = btrfs_use_zone_append(inode, disk_start); - const unsigned int bio_op = use_append ? REQ_OP_ZONE_APPEND : REQ_OP_WRITE; + const enum req_op bio_op = use_append ? REQ_OP_ZONE_APPEND : REQ_OP_WRITE; ASSERT(IS_ALIGNED(start, fs_info->sectorsize) && IS_ALIGNED(len, fs_info->sectorsize)); diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h index 2707404389a5..2b56d63e01ce 100644 --- a/fs/btrfs/compression.h +++ b/fs/btrfs/compression.h @@ -99,7 +99,7 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start, unsigned int compressed_len, struct page **compressed_pages, unsigned int nr_pages, - unsigned int write_flags, + blk_opf_t write_flags, struct cgroup_subsys_state *blkcg_css, bool writeback); void btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 04e36343da3a..60a20df353e7 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3357,7 +3357,7 @@ static int calc_bio_boundaries(struct btrfs_bio_ctrl *bio_ctrl, static int alloc_new_bio(struct btrfs_inode *inode, struct btrfs_bio_ctrl *bio_ctrl, struct writeback_control *wbc, - unsigned int opf, + blk_opf_t opf, bio_end_io_t end_io_func, u64 disk_bytenr, u32 offset, u64 file_offset, enum btrfs_compression_type compress_type) @@ -3437,7 +3437,7 @@ error: * @prev_bio_flags: flags of previous bio to see if we can merge the current one * @compress_type: compress type for current bio */ -static int submit_extent_page(unsigned int opf, +static int submit_extent_page(blk_opf_t opf, struct writeback_control *wbc, struct btrfs_bio_ctrl *bio_ctrl, struct page *page, u64 disk_bytenr, @@ -3615,7 +3615,7 @@ __get_extent_map(struct inode *inode, struct page *page, size_t pg_offset, */ static int btrfs_do_readpage(struct page *page, struct extent_map **em_cached, struct btrfs_bio_ctrl *bio_ctrl, - unsigned int read_flags, u64 *prev_em_start) + blk_opf_t read_flags, u64 *prev_em_start) { struct inode *inode = page->mapping->host; struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); @@ -3983,8 +3983,8 @@ static noinline_for_stack int __extent_writepage_io(struct btrfs_inode *inode, int saved_ret = 0; int ret = 0; int nr = 0; - u32 opf = REQ_OP_WRITE; - const unsigned int write_flags = wbc_to_write_flags(wbc); + enum req_op op = REQ_OP_WRITE; + const blk_opf_t write_flags = wbc_to_write_flags(wbc); bool has_error = false; bool compressed; @@ -4058,7 +4058,7 @@ static noinline_for_stack int __extent_writepage_io(struct btrfs_inode *inode, iosize = min(min(em_end, end + 1), dirty_range_end) - cur; if (btrfs_use_zone_append(inode, em->block_start)) - opf = REQ_OP_ZONE_APPEND; + op = REQ_OP_ZONE_APPEND; free_extent_map(em); em = NULL; @@ -4094,7 +4094,7 @@ static noinline_for_stack int __extent_writepage_io(struct btrfs_inode *inode, */ btrfs_page_clear_dirty(fs_info, page, cur, iosize); - ret = submit_extent_page(opf | write_flags, wbc, + ret = submit_extent_page(op | write_flags, wbc, &epd->bio_ctrl, page, disk_bytenr, iosize, cur - page_offset(page), @@ -4575,7 +4575,7 @@ static int write_one_subpage_eb(struct extent_buffer *eb, { struct btrfs_fs_info *fs_info = eb->fs_info; struct page *page = eb->pages[0]; - unsigned int write_flags = wbc_to_write_flags(wbc) | REQ_META; + blk_opf_t write_flags = wbc_to_write_flags(wbc) | REQ_META; bool no_dirty_ebs = false; int ret; @@ -4620,7 +4620,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb, { u64 disk_bytenr = eb->start; int i, num_pages; - unsigned int write_flags = wbc_to_write_flags(wbc) | REQ_META; + blk_opf_t write_flags = wbc_to_write_flags(wbc) | REQ_META; int ret = 0; prepare_eb_write(eb); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 05e0c4a5affd..f8378c949be4 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -485,7 +485,7 @@ struct async_chunk { struct page *locked_page; u64 start; u64 end; - unsigned int write_flags; + blk_opf_t write_flags; struct list_head extents; struct cgroup_subsys_state *blkcg_css; struct btrfs_work work; @@ -1435,7 +1435,7 @@ static int cow_file_range_async(struct btrfs_inode *inode, int i; bool should_compress; unsigned nofs_flag; - const unsigned int write_flags = wbc_to_write_flags(wbc); + const blk_opf_t write_flags = wbc_to_write_flags(wbc); unlock_extent(&inode->io_tree, start, end); diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index a5b623ee6fac..c520412d1f86 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -1136,7 +1136,7 @@ static int rbio_add_io_sector(struct btrfs_raid_bio *rbio, unsigned int stripe_nr, unsigned int sector_nr, unsigned long bio_max_len, - unsigned int opf) + enum req_op op) { const u32 sectorsize = rbio->bioc->fs_info->sectorsize; struct bio *last = bio_list->tail; @@ -1181,7 +1181,7 @@ static int rbio_add_io_sector(struct btrfs_raid_bio *rbio, /* put a new bio on the list */ bio = bio_alloc(stripe->dev->bdev, max(bio_max_len >> PAGE_SHIFT, 1UL), - opf, GFP_NOFS); + op, GFP_NOFS); bio->bi_iter.bi_sector = disk_start >> 9; bio->bi_private = rbio; -- cgit v1.2.3 From 67c0f556302cfcdb5b5fb7933afa08cb1de75b36 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:17 -0700 Subject: fs/ext4: Use the new blk_opf_t type Improve static type checking by using the new blk_opf_t type for variables that represent request flags. Cc: Theodore Ts'o Cc: Baokun Li Cc: Ye Bin Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-52-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/ext4/ext4.h | 8 ++++---- fs/ext4/fast_commit.c | 2 +- fs/ext4/super.c | 14 +++++++------- 3 files changed, 12 insertions(+), 12 deletions(-) (limited to 'fs') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 75b8d81b2469..29fc575a4eb6 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -3058,14 +3058,14 @@ extern unsigned int ext4_list_backups(struct super_block *sb, /* super.c */ extern struct buffer_head *ext4_sb_bread(struct super_block *sb, - sector_t block, int op_flags); + sector_t block, blk_opf_t op_flags); extern struct buffer_head *ext4_sb_bread_unmovable(struct super_block *sb, sector_t block); -extern void ext4_read_bh_nowait(struct buffer_head *bh, int op_flags, +extern void ext4_read_bh_nowait(struct buffer_head *bh, blk_opf_t op_flags, bh_end_io_t *end_io); -extern int ext4_read_bh(struct buffer_head *bh, int op_flags, +extern int ext4_read_bh(struct buffer_head *bh, blk_opf_t op_flags, bh_end_io_t *end_io); -extern int ext4_read_bh_lock(struct buffer_head *bh, int op_flags, bool wait); +extern int ext4_read_bh_lock(struct buffer_head *bh, blk_opf_t op_flags, bool wait); extern void ext4_sb_breadahead_unmovable(struct super_block *sb, sector_t block); extern int ext4_seq_options_show(struct seq_file *seq, void *offset); extern int ext4_calculate_overhead(struct super_block *sb); diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c index 0df5482c6c1c..eb4c8ad1bb61 100644 --- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -658,7 +658,7 @@ void ext4_fc_track_range(handle_t *handle, struct inode *inode, ext4_lblk_t star static void ext4_fc_submit_bh(struct super_block *sb, bool is_tail) { - int write_flags = REQ_SYNC; + blk_opf_t write_flags = REQ_SYNC; struct buffer_head *bh = EXT4_SB(sb)->s_fc_bh; /* Add REQ_FUA | REQ_PREFLUSH only its tail */ diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 24922184b622..2c68dec63e54 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -159,7 +159,7 @@ MODULE_ALIAS("ext3"); #define IS_EXT3_SB(sb) ((sb)->s_bdev->bd_holder == &ext3_fs_type) -static inline void __ext4_read_bh(struct buffer_head *bh, int op_flags, +static inline void __ext4_read_bh(struct buffer_head *bh, blk_opf_t op_flags, bh_end_io_t *end_io) { /* @@ -174,7 +174,7 @@ static inline void __ext4_read_bh(struct buffer_head *bh, int op_flags, submit_bh(REQ_OP_READ | op_flags, bh); } -void ext4_read_bh_nowait(struct buffer_head *bh, int op_flags, +void ext4_read_bh_nowait(struct buffer_head *bh, blk_opf_t op_flags, bh_end_io_t *end_io) { BUG_ON(!buffer_locked(bh)); @@ -186,7 +186,7 @@ void ext4_read_bh_nowait(struct buffer_head *bh, int op_flags, __ext4_read_bh(bh, op_flags, end_io); } -int ext4_read_bh(struct buffer_head *bh, int op_flags, bh_end_io_t *end_io) +int ext4_read_bh(struct buffer_head *bh, blk_opf_t op_flags, bh_end_io_t *end_io) { BUG_ON(!buffer_locked(bh)); @@ -203,7 +203,7 @@ int ext4_read_bh(struct buffer_head *bh, int op_flags, bh_end_io_t *end_io) return -EIO; } -int ext4_read_bh_lock(struct buffer_head *bh, int op_flags, bool wait) +int ext4_read_bh_lock(struct buffer_head *bh, blk_opf_t op_flags, bool wait) { if (trylock_buffer(bh)) { if (wait) @@ -227,8 +227,8 @@ int ext4_read_bh_lock(struct buffer_head *bh, int op_flags, bool wait) * return. */ static struct buffer_head *__ext4_sb_bread_gfp(struct super_block *sb, - sector_t block, int op_flags, - gfp_t gfp) + sector_t block, + blk_opf_t op_flags, gfp_t gfp) { struct buffer_head *bh; int ret; @@ -248,7 +248,7 @@ static struct buffer_head *__ext4_sb_bread_gfp(struct super_block *sb, } struct buffer_head *ext4_sb_bread(struct super_block *sb, sector_t block, - int op_flags) + blk_opf_t op_flags) { return __ext4_sb_bread_gfp(sb, block, op_flags, __GFP_MOVABLE); } -- cgit v1.2.3 From 7649c873c16a384d447f7dbf9b153e333159f914 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:18 -0700 Subject: fs/f2fs: Use the enum req_op and blk_opf_t types Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for variables that represent request flags. Cc: Jaegeuk Kim Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-53-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/f2fs/data.c | 11 ++++++----- fs/f2fs/f2fs.h | 6 +++--- fs/f2fs/node.c | 2 +- fs/f2fs/segment.c | 2 +- include/trace/events/f2fs.h | 22 +++++++++++----------- 5 files changed, 22 insertions(+), 21 deletions(-) (limited to 'fs') diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 7fcbcf979737..5c13ee321940 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -387,11 +387,11 @@ int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr) return 0; } -static unsigned int f2fs_io_flags(struct f2fs_io_info *fio) +static blk_opf_t f2fs_io_flags(struct f2fs_io_info *fio) { unsigned int temp_mask = (1 << NR_TEMP_TYPE) - 1; unsigned int fua_flag, meta_flag, io_flag; - unsigned int op_flags = 0; + blk_opf_t op_flags = 0; if (fio->op != REQ_OP_WRITE) return 0; @@ -999,7 +999,7 @@ out: } static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr, - unsigned nr_pages, unsigned op_flag, + unsigned nr_pages, blk_opf_t op_flag, pgoff_t first_idx, bool for_write) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); @@ -1047,7 +1047,8 @@ static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr, /* This can handle encryption stuffs */ static int f2fs_submit_page_read(struct inode *inode, struct page *page, - block_t blkaddr, int op_flags, bool for_write) + block_t blkaddr, blk_opf_t op_flags, + bool for_write) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); struct bio *bio; @@ -1181,7 +1182,7 @@ int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index) } struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, - int op_flags, bool for_write) + blk_opf_t op_flags, bool for_write) { struct address_space *mapping = inode->i_mapping; struct dnode_of_data dn; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index d9bbecd008d2..868170b72de9 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1183,8 +1183,8 @@ struct f2fs_io_info { nid_t ino; /* inode number */ enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ enum temp_type temp; /* contains HOT/WARM/COLD */ - int op; /* contains REQ_OP_ */ - int op_flags; /* req_flag_bits */ + enum req_op op; /* contains REQ_OP_ */ + blk_opf_t op_flags; /* req_flag_bits */ block_t new_blkaddr; /* new block address to be written */ block_t old_blkaddr; /* old block address before Cow */ struct page *page; /* page to be written */ @@ -3741,7 +3741,7 @@ int f2fs_reserve_new_block(struct dnode_of_data *dn); int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, - int op_flags, bool for_write); + blk_opf_t op_flags, bool for_write); struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, bool for_write); diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index cf6f7fc83c08..04a145f1dcfc 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1327,7 +1327,7 @@ fail: * 0: f2fs_put_page(page, 0) * LOCKED_PAGE or error: f2fs_put_page(page, 1) */ -static int read_node_page(struct page *page, int op_flags) +static int read_node_page(struct page *page, blk_opf_t op_flags) { struct f2fs_sb_info *sbi = F2FS_P_SB(page); struct node_info ni; diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 874c1b9c41a2..c7afc588cf26 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1082,7 +1082,7 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; struct list_head *wait_list = (dpolicy->type == DPOLICY_FSTRIM) ? &(dcc->fstrim_list) : &(dcc->wait_list); - int flag = dpolicy->sync ? REQ_SYNC : 0; + blk_opf_t flag = dpolicy->sync ? REQ_SYNC : 0; block_t lstart, start, len, total_len; int err = 0; diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index 513e889ef8aa..f1e922237736 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -66,7 +66,7 @@ TRACE_DEFINE_ENUM(CP_RESIZE); #define F2FS_OP_FLAGS (REQ_RAHEAD | REQ_SYNC | REQ_META | REQ_PRIO | \ REQ_PREFLUSH | REQ_FUA) -#define F2FS_BIO_FLAG_MASK(t) (t & F2FS_OP_FLAGS) +#define F2FS_BIO_FLAG_MASK(t) (__force u32)((t) & F2FS_OP_FLAGS) #define show_bio_type(op,op_flags) show_bio_op(op), \ show_bio_op_flags(op_flags) @@ -75,12 +75,12 @@ TRACE_DEFINE_ENUM(CP_RESIZE); #define show_bio_op_flags(flags) \ __print_flags(F2FS_BIO_FLAG_MASK(flags), "|", \ - { REQ_RAHEAD, "R" }, \ - { REQ_SYNC, "S" }, \ - { REQ_META, "M" }, \ - { REQ_PRIO, "P" }, \ - { REQ_PREFLUSH, "PF" }, \ - { REQ_FUA, "FUA" }) + { (__force u32)REQ_RAHEAD, "R" }, \ + { (__force u32)REQ_SYNC, "S" }, \ + { (__force u32)REQ_META, "M" }, \ + { (__force u32)REQ_PRIO, "P" }, \ + { (__force u32)REQ_PREFLUSH, "PF" }, \ + { (__force u32)REQ_FUA, "FUA" }) #define show_data_type(type) \ __print_symbolic(type, \ @@ -1036,8 +1036,8 @@ DECLARE_EVENT_CLASS(f2fs__submit_page_bio, __field(pgoff_t, index) __field(block_t, old_blkaddr) __field(block_t, new_blkaddr) - __field(int, op) - __field(int, op_flags) + __field(enum req_op, op) + __field(blk_opf_t, op_flags) __field(int, temp) __field(int, type) ), @@ -1092,8 +1092,8 @@ DECLARE_EVENT_CLASS(f2fs__bio, TP_STRUCT__entry( __field(dev_t, dev) __field(dev_t, target) - __field(int, op) - __field(int, op_flags) + __field(enum req_op, op) + __field(blk_opf_t, op_flags) __field(int, type) __field(sector_t, sector) __field(unsigned int, size) -- cgit v1.2.3 From 67688c08b7e5e9f8f945b22fb460a31ed3feb880 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:19 -0700 Subject: fs/gfs2: Use the enum req_op and blk_opf_t types Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for variables that represent request flags. Combine the first two gfs2_submit_bhs() arguments into a single argument. Reviewed-by: Andreas Gruenbacher Cc: Bob Peterson Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-54-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/gfs2/log.c | 4 ++-- fs/gfs2/log.h | 2 +- fs/gfs2/lops.c | 4 ++-- fs/gfs2/lops.h | 2 +- fs/gfs2/meta_io.c | 9 ++++----- 5 files changed, 10 insertions(+), 11 deletions(-) (limited to 'fs') diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index f0ee3ff6f9a8..eec4159b08aa 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -823,7 +823,7 @@ void gfs2_flush_revokes(struct gfs2_sbd *sdp) void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, u64 seq, u32 tail, u32 lblock, u32 flags, - int op_flags) + blk_opf_t op_flags) { struct gfs2_log_header *lh; u32 hash, crc; @@ -905,7 +905,7 @@ void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, static void log_write_header(struct gfs2_sbd *sdp, u32 flags) { - int op_flags = REQ_PREFLUSH | REQ_FUA | REQ_META | REQ_SYNC; + blk_opf_t op_flags = REQ_PREFLUSH | REQ_FUA | REQ_META | REQ_SYNC; enum gfs2_freeze_state state = atomic_read(&sdp->sd_freeze_state); gfs2_assert_withdraw(sdp, (state != SFS_FROZEN)); diff --git a/fs/gfs2/log.h b/fs/gfs2/log.h index fc905c2af53c..653cffcbf869 100644 --- a/fs/gfs2/log.h +++ b/fs/gfs2/log.h @@ -82,7 +82,7 @@ extern void gfs2_log_reserve(struct gfs2_sbd *sdp, struct gfs2_trans *tr, unsigned int *extra_revokes); extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, u64 seq, u32 tail, u32 lblock, u32 flags, - int op_flags); + blk_opf_t op_flags); extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 type); extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans); diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index 6ba51cbb94cf..90a2d7bc91c4 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -238,7 +238,7 @@ static void gfs2_end_log_write(struct bio *bio) * there is no pending bio, then this is a no-op. */ -void gfs2_log_submit_bio(struct bio **biop, int opf) +void gfs2_log_submit_bio(struct bio **biop, blk_opf_t opf) { struct bio *bio = *biop; if (bio) { @@ -292,7 +292,7 @@ static struct bio *gfs2_log_alloc_bio(struct gfs2_sbd *sdp, u64 blkno, */ static struct bio *gfs2_log_get_bio(struct gfs2_sbd *sdp, u64 blkno, - struct bio **biop, int op, + struct bio **biop, enum req_op op, bio_end_io_t *end_io, bool flush) { struct bio *bio = *biop; diff --git a/fs/gfs2/lops.h b/fs/gfs2/lops.h index f707601597dc..1412ffba1d44 100644 --- a/fs/gfs2/lops.h +++ b/fs/gfs2/lops.h @@ -16,7 +16,7 @@ extern u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lbn); extern void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, struct page *page, unsigned size, unsigned offset, u64 blkno); -extern void gfs2_log_submit_bio(struct bio **biop, int opf); +extern void gfs2_log_submit_bio(struct bio **biop, blk_opf_t opf); extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh); extern int gfs2_find_jhead(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head, bool keep_cache); diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index 3570739f005d..7e70e0ba5a6c 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -34,7 +34,7 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb { struct buffer_head *bh, *head; int nr_underway = 0; - int write_flags = REQ_META | REQ_PRIO | wbc_to_write_flags(wbc); + blk_opf_t write_flags = REQ_META | REQ_PRIO | wbc_to_write_flags(wbc); BUG_ON(!PageLocked(page)); BUG_ON(!page_has_buffers(page)); @@ -217,14 +217,13 @@ static void gfs2_meta_read_endio(struct bio *bio) * Submit several consecutive buffer head I/O requests as a single bio I/O * request. (See submit_bh_wbc.) */ -static void gfs2_submit_bhs(int op, int op_flags, struct buffer_head *bhs[], - int num) +static void gfs2_submit_bhs(blk_opf_t opf, struct buffer_head *bhs[], int num) { while (num > 0) { struct buffer_head *bh = *bhs; struct bio *bio; - bio = bio_alloc(bh->b_bdev, num, op | op_flags, GFP_NOIO); + bio = bio_alloc(bh->b_bdev, num, opf, GFP_NOIO); bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9); while (num > 0) { bh = *bhs; @@ -288,7 +287,7 @@ int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags, } } - gfs2_submit_bhs(REQ_OP_READ, REQ_META | REQ_PRIO, bhs, num); + gfs2_submit_bhs(REQ_OP_READ | REQ_META | REQ_PRIO, bhs, num); if (!(flags & DIO_WAIT)) return 0; -- cgit v1.2.3 From c85f99929ea66c357199b6a3fe958745e1190f5a Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:20 -0700 Subject: fs/hfsplus: Use the enum req_op and blk_opf_t types Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for variables that represent request flags. Combine the last two hfsplus_submit_bio() arguments into a single argument. Cc: Christoph Hellwig Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-55-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/hfsplus/hfsplus_fs.h | 2 +- fs/hfsplus/part_tbl.c | 5 ++--- fs/hfsplus/super.c | 4 ++-- fs/hfsplus/wrapper.c | 12 ++++++------ 4 files changed, 11 insertions(+), 12 deletions(-) (limited to 'fs') diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h index 396e73aa0961..a5db2e3b2980 100644 --- a/fs/hfsplus/hfsplus_fs.h +++ b/fs/hfsplus/hfsplus_fs.h @@ -525,7 +525,7 @@ int hfsplus_compare_dentry(const struct dentry *dentry, unsigned int len, /* wrapper.c */ int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf, - void **data, int op, int op_flags); + void **data, blk_opf_t opf); int hfsplus_read_wrapper(struct super_block *sb); /* diff --git a/fs/hfsplus/part_tbl.c b/fs/hfsplus/part_tbl.c index 63164ebc52fa..9ec21664eda6 100644 --- a/fs/hfsplus/part_tbl.c +++ b/fs/hfsplus/part_tbl.c @@ -112,8 +112,7 @@ static int hfs_parse_new_pmap(struct super_block *sb, void *buf, if ((u8 *)pm - (u8 *)buf >= buf_size) { res = hfsplus_submit_bio(sb, *part_start + HFS_PMAP_BLK + i, - buf, (void **)&pm, REQ_OP_READ, - 0); + buf, (void **)&pm, REQ_OP_READ); if (res) return res; } @@ -137,7 +136,7 @@ int hfs_part_find(struct super_block *sb, return -ENOMEM; res = hfsplus_submit_bio(sb, *part_start + HFS_PMAP_BLK, - buf, &data, REQ_OP_READ, 0); + buf, &data, REQ_OP_READ); if (res) goto out; diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c index 8479add998b5..122ed89ebf9f 100644 --- a/fs/hfsplus/super.c +++ b/fs/hfsplus/super.c @@ -221,7 +221,7 @@ static int hfsplus_sync_fs(struct super_block *sb, int wait) error2 = hfsplus_submit_bio(sb, sbi->part_start + HFSPLUS_VOLHEAD_SECTOR, - sbi->s_vhdr_buf, NULL, REQ_OP_WRITE, + sbi->s_vhdr_buf, NULL, REQ_OP_WRITE | REQ_SYNC); if (!error) error = error2; @@ -230,7 +230,7 @@ static int hfsplus_sync_fs(struct super_block *sb, int wait) error2 = hfsplus_submit_bio(sb, sbi->part_start + sbi->sect_count - 2, - sbi->s_backup_vhdr_buf, NULL, REQ_OP_WRITE, + sbi->s_backup_vhdr_buf, NULL, REQ_OP_WRITE | REQ_SYNC); if (!error) error2 = error; diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c index 0b8ad6586df5..0b791adf02e5 100644 --- a/fs/hfsplus/wrapper.c +++ b/fs/hfsplus/wrapper.c @@ -45,8 +45,9 @@ struct hfsplus_wd { * will work correctly. */ int hfsplus_submit_bio(struct super_block *sb, sector_t sector, - void *buf, void **data, int op, int op_flags) + void *buf, void **data, blk_opf_t opf) { + const enum req_op op = opf & REQ_OP_MASK; struct bio *bio; int ret = 0; u64 io_size; @@ -63,10 +64,10 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector, offset = start & (io_size - 1); sector &= ~((io_size >> HFSPLUS_SECTOR_SHIFT) - 1); - bio = bio_alloc(sb->s_bdev, 1, op | op_flags, GFP_NOIO); + bio = bio_alloc(sb->s_bdev, 1, opf, GFP_NOIO); bio->bi_iter.bi_sector = sector; - if (op != WRITE && data) + if (op != REQ_OP_WRITE && data) *data = (u8 *)buf + offset; while (io_size > 0) { @@ -184,7 +185,7 @@ int hfsplus_read_wrapper(struct super_block *sb) reread: error = hfsplus_submit_bio(sb, part_start + HFSPLUS_VOLHEAD_SECTOR, sbi->s_vhdr_buf, (void **)&sbi->s_vhdr, - REQ_OP_READ, 0); + REQ_OP_READ); if (error) goto out_free_backup_vhdr; @@ -216,8 +217,7 @@ reread: error = hfsplus_submit_bio(sb, part_start + part_size - 2, sbi->s_backup_vhdr_buf, - (void **)&sbi->s_backup_vhdr, REQ_OP_READ, - 0); + (void **)&sbi->s_backup_vhdr, REQ_OP_READ); if (error) goto out_free_backup_vhdr; -- cgit v1.2.3 From dbd4eb8148f694ae300fe9682b505acf53053f6e Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:21 -0700 Subject: fs/iomap: Use the new blk_opf_t type Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for the combination of a request operation and request flags. Cc: Al Viro Cc: Christoph Hellwig Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-56-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/iomap/direct-io.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'fs') diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 5d098adba443..18a3d9357dce 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -52,7 +52,7 @@ struct iomap_dio { }; static struct bio *iomap_dio_alloc_bio(const struct iomap_iter *iter, - struct iomap_dio *dio, unsigned short nr_vecs, unsigned int opf) + struct iomap_dio *dio, unsigned short nr_vecs, blk_opf_t opf) { if (dio->dops && dio->dops->bio_set) return bio_alloc_bioset(iter->iomap.bdev, nr_vecs, opf, @@ -212,10 +212,10 @@ static void iomap_dio_zero(const struct iomap_iter *iter, struct iomap_dio *dio, * mapping, and whether or not we want FUA. Note that we can end up * clearing the WRITE_FUA flag in the dio request. */ -static inline unsigned int iomap_dio_bio_opflags(struct iomap_dio *dio, +static inline blk_opf_t iomap_dio_bio_opflags(struct iomap_dio *dio, const struct iomap *iomap, bool use_fua) { - unsigned int opflags = REQ_SYNC | REQ_IDLE; + blk_opf_t opflags = REQ_SYNC | REQ_IDLE; if (!(dio->flags & IOMAP_DIO_WRITE)) { WARN_ON_ONCE(iomap->flags & IOMAP_F_ZONE_APPEND); @@ -244,7 +244,7 @@ static loff_t iomap_dio_bio_iter(const struct iomap_iter *iter, unsigned int fs_block_size = i_blocksize(inode), pad; loff_t length = iomap_length(iter); loff_t pos = iter->pos; - unsigned int bio_opf; + blk_opf_t bio_opf; struct bio *bio; bool need_zeroout = false; bool use_fua = false; -- cgit v1.2.3 From 6669797b0dd41ced457760b6e1014fdda8ce19ce Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:22 -0700 Subject: fs/jbd2: Fix the documentation of the jbd2_write_superblock() callers Commit 2a222ca992c3 ("fs: have submit_bh users pass in op and flags separately") renamed the jbd2_write_superblock() 'write_op' argument into 'write_flags'. Propagate this change to the jbd2_write_superblock() callers. Additionally, change the type of 'write_flags' into blk_opf_t. Cc: Mike Christie Cc: Theodore Ts'o Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-57-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/jbd2/journal.c | 15 ++++++++------- include/linux/jbd2.h | 2 +- include/trace/events/jbd2.h | 12 ++++++------ 3 files changed, 15 insertions(+), 14 deletions(-) (limited to 'fs') diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 07e6aaf7e213..2a1b9da7c3e3 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1604,7 +1604,7 @@ static int journal_reset(journal_t *journal) * This function expects that the caller will have locked the journal * buffer head, and will return with it unlocked */ -static int jbd2_write_superblock(journal_t *journal, int write_flags) +static int jbd2_write_superblock(journal_t *journal, blk_opf_t write_flags) { struct buffer_head *bh = journal->j_sb_buffer; journal_superblock_t *sb = journal->j_superblock; @@ -1661,13 +1661,14 @@ static int jbd2_write_superblock(journal_t *journal, int write_flags) * @journal: The journal to update. * @tail_tid: TID of the new transaction at the tail of the log * @tail_block: The first block of the transaction at the tail of the log - * @write_op: With which operation should we write the journal sb + * @write_flags: Flags for the journal sb write operation * * Update a journal's superblock information about log tail and write it to * disk, waiting for the IO to complete. */ int jbd2_journal_update_sb_log_tail(journal_t *journal, tid_t tail_tid, - unsigned long tail_block, int write_op) + unsigned long tail_block, + blk_opf_t write_flags) { journal_superblock_t *sb = journal->j_superblock; int ret; @@ -1687,7 +1688,7 @@ int jbd2_journal_update_sb_log_tail(journal_t *journal, tid_t tail_tid, sb->s_sequence = cpu_to_be32(tail_tid); sb->s_start = cpu_to_be32(tail_block); - ret = jbd2_write_superblock(journal, write_op); + ret = jbd2_write_superblock(journal, write_flags); if (ret) goto out; @@ -1704,12 +1705,12 @@ out: /** * jbd2_mark_journal_empty() - Mark on disk journal as empty. * @journal: The journal to update. - * @write_op: With which operation should we write the journal sb + * @write_flags: Flags for the journal sb write operation * * Update a journal's dynamic superblock fields to show that journal is empty. * Write updated superblock to disk waiting for IO to complete. */ -static void jbd2_mark_journal_empty(journal_t *journal, int write_op) +static void jbd2_mark_journal_empty(journal_t *journal, blk_opf_t write_flags) { journal_superblock_t *sb = journal->j_superblock; bool had_fast_commit = false; @@ -1735,7 +1736,7 @@ static void jbd2_mark_journal_empty(journal_t *journal, int write_op) had_fast_commit = true; } - jbd2_write_superblock(journal, write_op); + jbd2_write_superblock(journal, write_flags); if (had_fast_commit) jbd2_set_feature_fast_commit(journal); diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index e79d6e0b14e8..dc1724131300 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1557,7 +1557,7 @@ extern int jbd2_journal_wipe (journal_t *, int); extern int jbd2_journal_skip_recovery (journal_t *); extern void jbd2_journal_update_sb_errno(journal_t *); extern int jbd2_journal_update_sb_log_tail (journal_t *, tid_t, - unsigned long, int); + unsigned long, blk_opf_t); extern void jbd2_journal_abort (journal_t *, int); extern int jbd2_journal_errno (journal_t *); extern void jbd2_journal_ack_err (journal_t *); diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h index a4dfe005983d..99f783c384bb 100644 --- a/include/trace/events/jbd2.h +++ b/include/trace/events/jbd2.h @@ -355,22 +355,22 @@ TRACE_EVENT(jbd2_update_log_tail, TRACE_EVENT(jbd2_write_superblock, - TP_PROTO(journal_t *journal, int write_op), + TP_PROTO(journal_t *journal, blk_opf_t write_flags), - TP_ARGS(journal, write_op), + TP_ARGS(journal, write_flags), TP_STRUCT__entry( __field( dev_t, dev ) - __field( int, write_op ) + __field( blk_opf_t, write_flags ) ), TP_fast_assign( __entry->dev = journal->j_fs_dev->bd_dev; - __entry->write_op = write_op; + __entry->write_flags = write_flags; ), - TP_printk("dev %d,%d write_op %x", MAJOR(__entry->dev), - MINOR(__entry->dev), __entry->write_op) + TP_printk("dev %d,%d write_flags %x", MAJOR(__entry->dev), + MINOR(__entry->dev), (__force u32)__entry->write_flags) ); TRACE_EVENT(jbd2_lock_buffer_stall, -- cgit v1.2.3 From 5d12ce77e1e677590de13468fe1a497388de3a9e Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:23 -0700 Subject: fs/nfs: Use enum req_op where appropriate Improve static type checking by using enum req_op for request operations. Rename an 'rw' argument into 'op' since that name is typically used for request operations. This patch does not change any functionality. Note: REQ_OP_READ = READ = 0 and REQ_OP_WRITE = WRITE = 1. Cc: Trond Myklebust Cc: Anna Schumaker Cc: Christoph Hellwig Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-58-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/nfs/blocklayout/blocklayout.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'fs') diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index 79a8b451791f..943aeea1eb16 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -121,7 +121,7 @@ static bool offset_in_map(u64 offset, struct pnfs_block_dev_map *map) } static struct bio * -do_add_page_to_bio(struct bio *bio, int npg, int rw, sector_t isect, +do_add_page_to_bio(struct bio *bio, int npg, enum req_op op, sector_t isect, struct page *page, struct pnfs_block_dev_map *map, struct pnfs_block_extent *be, bio_end_io_t end_io, struct parallel_io *par, unsigned int offset, int *len) @@ -131,7 +131,7 @@ do_add_page_to_bio(struct bio *bio, int npg, int rw, sector_t isect, u64 disk_addr, end; dprintk("%s: npg %d rw %d isect %llu offset %u len %d\n", __func__, - npg, rw, (unsigned long long)isect, offset, *len); + npg, (__force u32)op, (unsigned long long)isect, offset, *len); /* translate to device offset */ isect += be->be_v_offset; @@ -154,7 +154,7 @@ do_add_page_to_bio(struct bio *bio, int npg, int rw, sector_t isect, retry: if (!bio) { - bio = bio_alloc(map->bdev, bio_max_segs(npg), rw, GFP_NOIO); + bio = bio_alloc(map->bdev, bio_max_segs(npg), op, GFP_NOIO); bio->bi_iter.bi_sector = disk_addr >> SECTOR_SHIFT; bio->bi_end_io = end_io; bio->bi_private = par; @@ -291,7 +291,7 @@ bl_read_pagelist(struct nfs_pgio_header *header) } else { bio = do_add_page_to_bio(bio, header->page_array.npages - i, - READ, + REQ_OP_READ, isect, pages[i], &map, &be, bl_end_io_read, par, pg_offset, &pg_len); @@ -420,9 +420,8 @@ bl_write_pagelist(struct nfs_pgio_header *header, int sync) pg_len = PAGE_SIZE; bio = do_add_page_to_bio(bio, header->page_array.npages - i, - WRITE, isect, pages[i], &map, &be, - bl_end_io_write, par, - 0, &pg_len); + REQ_OP_WRITE, isect, pages[i], &map, + &be, bl_end_io_write, par, 0, &pg_len); if (IS_ERR(bio)) { header->pnfs_error = PTR_ERR(bio); bio = NULL; -- cgit v1.2.3 From ed4512590bd5839f8ea9eef1626b0f4db626b1d1 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:24 -0700 Subject: fs/nilfs2: Use the enum req_op and blk_opf_t types Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for variables that represent request flags. Combine the 'mode' and 'mode_flags' arguments of nilfs_btnode_submit_block into a single argument 'opf'. Reviewed-by: Ryusuke Konishi Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-59-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/nilfs2/btnode.c | 8 ++++---- fs/nilfs2/btnode.h | 4 ++-- fs/nilfs2/btree.c | 6 +++--- fs/nilfs2/gcinode.c | 5 ++--- fs/nilfs2/mdt.c | 19 ++++++++++--------- include/trace/events/nilfs2.h | 4 ++-- 6 files changed, 23 insertions(+), 23 deletions(-) (limited to 'fs') diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c index 5c39efbf733f..e74fda212620 100644 --- a/fs/nilfs2/btnode.c +++ b/fs/nilfs2/btnode.c @@ -70,7 +70,7 @@ nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr) } int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr, - sector_t pblocknr, int mode, int mode_flags, + sector_t pblocknr, blk_opf_t opf, struct buffer_head **pbh, sector_t *submit_ptr) { struct buffer_head *bh; @@ -103,13 +103,13 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr, } } - if (mode_flags & REQ_RAHEAD) { + if (opf & REQ_RAHEAD) { if (pblocknr != *submit_ptr + 1 || !trylock_buffer(bh)) { err = -EBUSY; /* internal code */ brelse(bh); goto out_locked; } - } else { /* mode == READ */ + } else { /* opf == REQ_OP_READ */ lock_buffer(bh); } if (buffer_uptodate(bh)) { @@ -122,7 +122,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr, bh->b_blocknr = pblocknr; /* set block address for read */ bh->b_end_io = end_buffer_read_sync; get_bh(bh); - submit_bh(mode | mode_flags, bh); + submit_bh(opf, bh); bh->b_blocknr = blocknr; /* set back to the given block address */ *submit_ptr = pblocknr; err = 0; diff --git a/fs/nilfs2/btnode.h b/fs/nilfs2/btnode.h index bd5544e63a01..4bc5612dff94 100644 --- a/fs/nilfs2/btnode.h +++ b/fs/nilfs2/btnode.h @@ -34,8 +34,8 @@ void nilfs_init_btnc_inode(struct inode *btnc_inode); void nilfs_btnode_cache_clear(struct address_space *); struct buffer_head *nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr); -int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t, int, - int, struct buffer_head **, sector_t *); +int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t, + blk_opf_t, struct buffer_head **, sector_t *); void nilfs_btnode_delete(struct buffer_head *); int nilfs_btnode_prepare_change_key(struct address_space *, struct nilfs_btnode_chkey_ctxt *); diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c index f544c22fff78..9f4d9432d38a 100644 --- a/fs/nilfs2/btree.c +++ b/fs/nilfs2/btree.c @@ -477,7 +477,7 @@ static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr, sector_t submit_ptr = 0; int ret; - ret = nilfs_btnode_submit_block(btnc, ptr, 0, REQ_OP_READ, 0, &bh, + ret = nilfs_btnode_submit_block(btnc, ptr, 0, REQ_OP_READ, &bh, &submit_ptr); if (ret) { if (ret != -EEXIST) @@ -495,8 +495,8 @@ static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr, ptr2 = nilfs_btree_node_get_ptr(ra->node, i, ra->ncmax); ret = nilfs_btnode_submit_block(btnc, ptr2, 0, - REQ_OP_READ, REQ_RAHEAD, - &ra_bh, &submit_ptr); + REQ_OP_READ | REQ_RAHEAD, + &ra_bh, &submit_ptr); if (likely(!ret || ret == -EEXIST)) brelse(ra_bh); else if (ret != -EBUSY) diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c index 847def8af315..b0d22ff24b67 100644 --- a/fs/nilfs2/gcinode.c +++ b/fs/nilfs2/gcinode.c @@ -129,9 +129,8 @@ int nilfs_gccache_submit_read_node(struct inode *inode, sector_t pbn, struct inode *btnc_inode = NILFS_I(inode)->i_assoc_inode; int ret; - ret = nilfs_btnode_submit_block(btnc_inode->i_mapping, - vbn ? : pbn, pbn, REQ_OP_READ, 0, - out_bh, &pbn); + ret = nilfs_btnode_submit_block(btnc_inode->i_mapping, vbn ? : pbn, pbn, + REQ_OP_READ, out_bh, &pbn); if (ret == -EEXIST) /* internal code (cache hit) */ ret = 0; return ret; diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c index 66e8811c2528..cbf4fa60eea2 100644 --- a/fs/nilfs2/mdt.c +++ b/fs/nilfs2/mdt.c @@ -111,8 +111,8 @@ static int nilfs_mdt_create_block(struct inode *inode, unsigned long block, } static int -nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff, - int mode, int mode_flags, struct buffer_head **out_bh) +nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff, blk_opf_t opf, + struct buffer_head **out_bh) { struct buffer_head *bh; __u64 blknum = 0; @@ -126,12 +126,12 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff, if (buffer_uptodate(bh)) goto out; - if (mode_flags & REQ_RAHEAD) { + if (opf & REQ_RAHEAD) { if (!trylock_buffer(bh)) { ret = -EBUSY; goto failed_bh; } - } else /* mode == READ */ + } else /* opf == REQ_OP_READ */ lock_buffer(bh); if (buffer_uptodate(bh)) { @@ -148,10 +148,11 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff, bh->b_end_io = end_buffer_read_sync; get_bh(bh); - submit_bh(mode | mode_flags, bh); + submit_bh(opf, bh); ret = 0; - trace_nilfs2_mdt_submit_block(inode, inode->i_ino, blkoff, mode); + trace_nilfs2_mdt_submit_block(inode, inode->i_ino, blkoff, + opf & REQ_OP_MASK); out: get_bh(bh); *out_bh = bh; @@ -172,7 +173,7 @@ static int nilfs_mdt_read_block(struct inode *inode, unsigned long block, int i, nr_ra_blocks = NILFS_MDT_MAX_RA_BLOCKS; int err; - err = nilfs_mdt_submit_block(inode, block, REQ_OP_READ, 0, &first_bh); + err = nilfs_mdt_submit_block(inode, block, REQ_OP_READ, &first_bh); if (err == -EEXIST) /* internal code */ goto out; @@ -182,8 +183,8 @@ static int nilfs_mdt_read_block(struct inode *inode, unsigned long block, if (readahead) { blkoff = block + 1; for (i = 0; i < nr_ra_blocks; i++, blkoff++) { - err = nilfs_mdt_submit_block(inode, blkoff, REQ_OP_READ, - REQ_RAHEAD, &bh); + err = nilfs_mdt_submit_block(inode, blkoff, + REQ_OP_READ | REQ_RAHEAD, &bh); if (likely(!err || err == -EEXIST)) brelse(bh); else if (err != -EBUSY) diff --git a/include/trace/events/nilfs2.h b/include/trace/events/nilfs2.h index 84ee31fc04cc..8efc6236f57c 100644 --- a/include/trace/events/nilfs2.h +++ b/include/trace/events/nilfs2.h @@ -192,7 +192,7 @@ TRACE_EVENT(nilfs2_mdt_submit_block, TP_PROTO(struct inode *inode, unsigned long ino, unsigned long blkoff, - int mode), + enum req_op mode), TP_ARGS(inode, ino, blkoff, mode), @@ -200,7 +200,7 @@ TRACE_EVENT(nilfs2_mdt_submit_block, __field(struct inode *, inode) __field(unsigned long, ino) __field(unsigned long, blkoff) - __field(int, mode) + __field(enum req_op, mode) ), TP_fast_assign( -- cgit v1.2.3 From ce6b5315883448fbecfaca43b95d3bf2ed1d008c Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:25 -0700 Subject: fs/ntfs3: Use enum req_op where appropriate Improve static type checking by using enum req_op instead of u32 for block layer request operations. Cc: Konstantin Komarov Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-60-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/ntfs3/fsntfs.c | 2 +- fs/ntfs3/ntfs_fs.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/ntfs3/fsntfs.c b/fs/ntfs3/fsntfs.c index 3de5700a9b83..1835e35199c2 100644 --- a/fs/ntfs3/fsntfs.c +++ b/fs/ntfs3/fsntfs.c @@ -1448,7 +1448,7 @@ int ntfs_write_bh(struct ntfs_sb_info *sbi, struct NTFS_RECORD_HEADER *rhdr, */ int ntfs_bio_pages(struct ntfs_sb_info *sbi, const struct runs_tree *run, struct page **pages, u32 nr_pages, u64 vbo, u32 bytes, - u32 op) + enum req_op op) { int err = 0; struct bio *new, *bio = NULL; diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h index 8de129a6419b..3a8abf13143e 100644 --- a/fs/ntfs3/ntfs_fs.h +++ b/fs/ntfs3/ntfs_fs.h @@ -617,7 +617,7 @@ int ntfs_write_bh(struct ntfs_sb_info *sbi, struct NTFS_RECORD_HEADER *rhdr, struct ntfs_buffers *nb, int sync); int ntfs_bio_pages(struct ntfs_sb_info *sbi, const struct runs_tree *run, struct page **pages, u32 nr_pages, u64 vbo, u32 bytes, - u32 op); + enum req_op op); int ntfs_bio_fill_1(struct ntfs_sb_info *sbi, const struct runs_tree *run); int ntfs_vbo_to_lbo(struct ntfs_sb_info *sbi, const struct runs_tree *run, u64 vbo, u64 *lbo, u64 *bytes); -- cgit v1.2.3 From 61ba06c7069bfe1d2b66ab474ce0d6b4f5419d64 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:26 -0700 Subject: fs/ocfs2: Use the enum req_op and blk_opf_t types Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for variables that represent request flags. Combine the last two o2hb_setup_one_bio() arguments into a single argument. Reviewed-by: Joseph Qi Cc: Mark Fasheh Cc: Joel Becker Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-61-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/ocfs2/cluster/heartbeat.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'fs') diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 5f83c0c0918c..b13d344d40b6 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -501,8 +501,7 @@ static void o2hb_bio_end_io(struct bio *bio) static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg, struct o2hb_bio_wait_ctxt *wc, unsigned int *current_slot, - unsigned int max_slots, int op, - int op_flags) + unsigned int max_slots, blk_opf_t opf) { int len, current_page; unsigned int vec_len, vec_start; @@ -516,7 +515,7 @@ static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg, * GFP_KERNEL that the local node can get fenced. It would be * nicest if we could pre-allocate these bios and avoid this * all together. */ - bio = bio_alloc(reg->hr_bdev, 16, op | op_flags, GFP_ATOMIC); + bio = bio_alloc(reg->hr_bdev, 16, opf, GFP_ATOMIC); if (!bio) { mlog(ML_ERROR, "Could not alloc slots BIO!\n"); bio = ERR_PTR(-ENOMEM); @@ -564,7 +563,7 @@ static int o2hb_read_slots(struct o2hb_region *reg, while(current_slot < max_slots) { bio = o2hb_setup_one_bio(reg, &wc, ¤t_slot, max_slots, - REQ_OP_READ, 0); + REQ_OP_READ); if (IS_ERR(bio)) { status = PTR_ERR(bio); mlog_errno(status); @@ -596,8 +595,8 @@ static int o2hb_issue_node_write(struct o2hb_region *reg, slot = o2nm_this_node(); - bio = o2hb_setup_one_bio(reg, write_wc, &slot, slot+1, REQ_OP_WRITE, - REQ_SYNC); + bio = o2hb_setup_one_bio(reg, write_wc, &slot, slot+1, + REQ_OP_WRITE | REQ_SYNC); if (IS_ERR(bio)) { status = PTR_ERR(bio); mlog_errno(status); -- cgit v1.2.3 From d03025aef8676e826b69f8e3ec9bb59a5ad0c31d Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:28 -0700 Subject: fs/xfs: Use the enum req_op and blk_opf_t types Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for the combination of a request operation with request flags. Reviewed-by: Darrick J. Wong Cc: Christoph Hellwig Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-63-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/xfs/xfs_bio_io.c | 2 +- fs/xfs/xfs_buf.c | 4 ++-- fs/xfs/xfs_linux.h | 2 +- fs/xfs/xfs_log_recover.c | 2 +- 4 files changed, 5 insertions(+), 5 deletions(-) (limited to 'fs') diff --git a/fs/xfs/xfs_bio_io.c b/fs/xfs/xfs_bio_io.c index ae4345b37621..fe21c76f75b8 100644 --- a/fs/xfs/xfs_bio_io.c +++ b/fs/xfs/xfs_bio_io.c @@ -15,7 +15,7 @@ xfs_rw_bdev( sector_t sector, unsigned int count, char *data, - unsigned int op) + enum req_op op) { unsigned int is_vmalloc = is_vmalloc_addr(data); diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index bf4e60871068..5e8f40d8c052 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1416,7 +1416,7 @@ xfs_buf_ioapply_map( int map, int *buf_offset, int *count, - int op) + blk_opf_t op) { int page_index; unsigned int total_nr_pages = bp->b_page_count; @@ -1493,7 +1493,7 @@ _xfs_buf_ioapply( struct xfs_buf *bp) { struct blk_plug plug; - int op; + blk_opf_t op; int offset; int size; int i; diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h index cb9105d667db..f9878021e7d0 100644 --- a/fs/xfs/xfs_linux.h +++ b/fs/xfs/xfs_linux.h @@ -196,7 +196,7 @@ static inline uint64_t howmany_64(uint64_t x, uint32_t y) } int xfs_rw_bdev(struct block_device *bdev, sector_t sector, unsigned int count, - char *data, unsigned int op); + char *data, enum req_op op); #define ASSERT_ALWAYS(expr) \ (likely(expr) ? (void)0 : assfail(NULL, #expr, __FILE__, __LINE__)) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 5f7e4e6e33ce..940c8107cbd4 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -122,7 +122,7 @@ xlog_do_io( xfs_daddr_t blk_no, unsigned int nbblks, char *data, - unsigned int op) + enum req_op op) { int error; -- cgit v1.2.3 From e46b5970496705127f9ae494c66e0242773097e8 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 14 Jul 2022 11:07:29 -0700 Subject: fs/zonefs: Use the enum req_op type for tracing request operations Improve static type checking by using the enum req_op type for request operations. Reviewed-by: Johannes Thumshirn Reviewed-by: Damien Le Moal Cc: Naohiro Aota Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-64-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/zonefs/trace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/zonefs/trace.h b/fs/zonefs/trace.h index 21501da764bd..42edcfd393ed 100644 --- a/fs/zonefs/trace.h +++ b/fs/zonefs/trace.h @@ -25,7 +25,7 @@ TRACE_EVENT(zonefs_zone_mgmt, TP_STRUCT__entry( __field(dev_t, dev) __field(ino_t, ino) - __field(int, op) + __field(enum req_op, op) __field(sector_t, sector) __field(sector_t, nr_sectors) ), -- cgit v1.2.3 From f54541403b2f51d98aa65472ddb021b1ef7d1eed Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 15 Jul 2022 11:47:34 -0700 Subject: fs/buffer: Fix the ll_rw_block() kernel-doc header Bring the ll_rw_block() kernel-doc header again in sync with the function prototype. Reported-by: Stephen Rothwell Cc: Alexander Viro Cc: Jan Kara Cc: Stephen Rothwell Fixes: 1420c4a549bf ("fs/buffer: Combine two submit_bh() and ll_rw_block() arguments") Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220715184735.2326034-2-bvanassche@acm.org Signed-off-by: Jens Axboe --- fs/buffer.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'fs') diff --git a/fs/buffer.c b/fs/buffer.c index af53569930bb..82de136b83bb 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -3049,14 +3049,13 @@ EXPORT_SYMBOL(submit_bh); /** * ll_rw_block: low-level access to block devices (DEPRECATED) - * @op: whether to %READ or %WRITE - * @op_flags: req_flag_bits + * @opf: block layer request operation and flags. * @nr: number of &struct buffer_heads in the array * @bhs: array of pointers to &struct buffer_head * * ll_rw_block() takes an array of pointers to &struct buffer_heads, and * requests an I/O operation on them, either a %REQ_OP_READ or a %REQ_OP_WRITE. - * @op_flags contains flags modifying the detailed I/O behavior, most notably + * @opf contains flags modifying the detailed I/O behavior, most notably * %REQ_RAHEAD. * * This function drops any buffer that it cannot get a lock on (with the -- cgit v1.2.3