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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-16 23:57:51 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-16 23:57:51 +0300
commitac7ac4618cf25e0d5cd8eba83d5f600084b65b9a (patch)
treee5d28907ff72690a0463a2238b96202d751a535c /drivers/s390
parent48aba79bcf6ea05148dc82ad9c40713960b00396 (diff)
parentfa94ba8a7b22890e6a17b39b9359e114fe18cd59 (diff)
downloadlinux-ac7ac4618cf25e0d5cd8eba83d5f600084b65b9a.tar.xz
Merge tag 'for-5.11/block-2020-12-14' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe: "Another series of killing more code than what is being added, again thanks to Christoph's relentless cleanups and tech debt tackling. This contains: - blk-iocost improvements (Baolin Wang) - part0 iostat fix (Jeffle Xu) - Disable iopoll for split bios (Jeffle Xu) - block tracepoint cleanups (Christoph Hellwig) - Merging of struct block_device and hd_struct (Christoph Hellwig) - Rework/cleanup of how block device sizes are updated (Christoph Hellwig) - Simplification of gendisk lookup and removal of block device aliasing (Christoph Hellwig) - Block device ioctl cleanups (Christoph Hellwig) - Removal of bdget()/blkdev_get() as exported API (Christoph Hellwig) - Disk change rework, avoid ->revalidate_disk() (Christoph Hellwig) - sbitmap improvements (Pavel Begunkov) - Hybrid polling fix (Pavel Begunkov) - bvec iteration improvements (Pavel Begunkov) - Zone revalidation fixes (Damien Le Moal) - blk-throttle limit fix (Yu Kuai) - Various little fixes" * tag 'for-5.11/block-2020-12-14' of git://git.kernel.dk/linux-block: (126 commits) blk-mq: fix msec comment from micro to milli seconds blk-mq: update arg in comment of blk_mq_map_queue blk-mq: add helper allocating tagset->tags Revert "block: Fix a lockdep complaint triggered by request queue flushing" nvme-loop: use blk_mq_hctx_set_fq_lock_class to set loop's lock class blk-mq: add new API of blk_mq_hctx_set_fq_lock_class block: disable iopoll for split bio block: Improve blk_revalidate_disk_zones() checks sbitmap: simplify wrap check sbitmap: replace CAS with atomic and sbitmap: remove swap_lock sbitmap: optimise sbitmap_deferred_clear() blk-mq: skip hybrid polling if iopoll doesn't spin blk-iocost: Factor out the base vrate change into a separate function blk-iocost: Factor out the active iocgs' state check into a separate function blk-iocost: Move the usage ratio calculation to the correct place blk-iocost: Remove unnecessary advance declaration blk-iocost: Fix some typos in comments blktrace: fix up a kerneldoc comment block: remove the request_queue to argument request based tracepoints ...
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/block/dasd.c9
-rw-r--r--drivers/s390/block/dasd_int.h3
-rw-r--r--drivers/s390/block/dasd_ioctl.c36
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c3
4 files changed, 20 insertions, 31 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index fd568248fd26..6efacadc8fcd 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -430,7 +430,7 @@ dasd_state_ready_to_online(struct dasd_device * device)
{
struct gendisk *disk;
struct disk_part_iter piter;
- struct hd_struct *part;
+ struct block_device *part;
device->state = DASD_STATE_ONLINE;
if (device->block) {
@@ -443,7 +443,7 @@ dasd_state_ready_to_online(struct dasd_device * device)
disk = device->block->bdev->bd_disk;
disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0);
while ((part = disk_part_iter_next(&piter)))
- kobject_uevent(&part_to_dev(part)->kobj, KOBJ_CHANGE);
+ kobject_uevent(bdev_kobj(part), KOBJ_CHANGE);
disk_part_iter_exit(&piter);
}
return 0;
@@ -457,7 +457,7 @@ static int dasd_state_online_to_ready(struct dasd_device *device)
int rc;
struct gendisk *disk;
struct disk_part_iter piter;
- struct hd_struct *part;
+ struct block_device *part;
if (device->discipline->online_to_ready) {
rc = device->discipline->online_to_ready(device);
@@ -470,7 +470,7 @@ static int dasd_state_online_to_ready(struct dasd_device *device)
disk = device->block->bdev->bd_disk;
disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0);
while ((part = disk_part_iter_next(&piter)))
- kobject_uevent(&part_to_dev(part)->kobj, KOBJ_CHANGE);
+ kobject_uevent(bdev_kobj(part), KOBJ_CHANGE);
disk_part_iter_exit(&piter);
}
return 0;
@@ -3376,6 +3376,7 @@ dasd_device_operations = {
.ioctl = dasd_ioctl,
.compat_ioctl = dasd_ioctl,
.getgeo = dasd_getgeo,
+ .set_read_only = dasd_set_read_only,
};
/*******************************************************************************
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 7a34161ea5c6..8ca077fbdf4f 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -834,7 +834,8 @@ int dasd_scan_partitions(struct dasd_block *);
void dasd_destroy_partitions(struct dasd_block *);
/* externals in dasd_ioctl.c */
-int dasd_ioctl(struct block_device *, fmode_t, unsigned int, unsigned long);
+int dasd_ioctl(struct block_device *, fmode_t, unsigned int, unsigned long);
+int dasd_set_read_only(struct block_device *bdev, bool ro);
/* externals in dasd_proc.c */
int dasd_proc_init(void);
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index cb6427fb9f3d..9f6424408946 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -54,8 +54,6 @@ dasd_ioctl_enable(struct block_device *bdev)
return -ENODEV;
dasd_enable_device(base);
- /* Formatting the dasd device can change the capacity. */
- bd_set_nr_sectors(bdev, get_capacity(base->block->gdp));
dasd_put_device(base);
return 0;
}
@@ -88,7 +86,7 @@ dasd_ioctl_disable(struct block_device *bdev)
* Set i_size to zero, since read, write, etc. check against this
* value.
*/
- bd_set_nr_sectors(bdev, 0);
+ set_capacity(bdev->bd_disk, 0);
dasd_put_device(base);
return 0;
}
@@ -222,9 +220,8 @@ dasd_format(struct dasd_block *block, struct format_data_t *fdata)
* enabling the device later.
*/
if (fdata->start_unit == 0) {
- struct block_device *bdev = bdget_disk(block->gdp, 0);
- bdev->bd_inode->i_blkbits = blksize_bits(fdata->blksize);
- bdput(bdev);
+ block->gdp->part0->bd_inode->i_blkbits =
+ blksize_bits(fdata->blksize);
}
rc = base->discipline->format_device(base, fdata, 1);
@@ -532,28 +529,22 @@ static int dasd_ioctl_information(struct dasd_block *block, void __user *argp,
/*
* Set read only
*/
-static int
-dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp)
+int dasd_set_read_only(struct block_device *bdev, bool ro)
{
struct dasd_device *base;
- int intval, rc;
+ int rc;
- if (!capable(CAP_SYS_ADMIN))
- return -EACCES;
+ /* do not manipulate hardware state for partitions */
if (bdev_is_partition(bdev))
- // ro setting is not allowed for partitions
- return -EINVAL;
- if (get_user(intval, (int __user *)argp))
- return -EFAULT;
+ return 0;
+
base = dasd_device_from_gendisk(bdev->bd_disk);
if (!base)
return -ENODEV;
- if (!intval && test_bit(DASD_FLAG_DEVICE_RO, &base->flags)) {
- dasd_put_device(base);
- return -EROFS;
- }
- set_disk_ro(bdev->bd_disk, intval);
- rc = dasd_set_feature(base->cdev, DASD_FEATURE_READONLY, intval);
+ if (!ro && test_bit(DASD_FLAG_DEVICE_RO, &base->flags))
+ rc = -EROFS;
+ else
+ rc = dasd_set_feature(base->cdev, DASD_FEATURE_READONLY, ro);
dasd_put_device(base);
return rc;
}
@@ -633,9 +624,6 @@ int dasd_ioctl(struct block_device *bdev, fmode_t mode,
case BIODASDPRRST:
rc = dasd_ioctl_reset_profile(block);
break;
- case BLKROSET:
- rc = dasd_ioctl_set_ro(bdev, argp);
- break;
case DASDAPIVER:
rc = dasd_ioctl_api_version(argp);
break;
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 6cb963a06777..37d450f46952 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -2359,8 +2359,7 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
}
}
- blk_add_driver_data(scsi->request->q, scsi->request, &blktrc,
- sizeof(blktrc));
+ blk_add_driver_data(scsi->request, &blktrc, sizeof(blktrc));
}
/**