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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-27 01:03:07 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-27 01:03:07 +0300 |
commit | d05d7f40791ccbb6e543cc5dd6a6aa08fc71d635 (patch) | |
tree | dc0039fe490a41a70de10d58fe8e6136db46463a /drivers/target/target_core_iblock.c | |
parent | 75a442efb1ca613f8d1cc71a32c2c9b0aefae4a5 (diff) | |
parent | 17007f3994cdb4643355c73f54f0adad006cf59e (diff) | |
download | linux-d05d7f40791ccbb6e543cc5dd6a6aa08fc71d635.tar.xz |
Merge branch 'for-4.8/core' of git://git.kernel.dk/linux-block
Pull core block updates from Jens Axboe:
- the big change is the cleanup from Mike Christie, cleaning up our
uses of command types and modified flags. This is what will throw
some merge conflicts
- regression fix for the above for btrfs, from Vincent
- following up to the above, better packing of struct request from
Christoph
- a 2038 fix for blktrace from Arnd
- a few trivial/spelling fixes from Bart Van Assche
- a front merge check fix from Damien, which could cause issues on
SMR drives
- Atari partition fix from Gabriel
- convert cfq to highres timers, since jiffies isn't granular enough
for some devices these days. From Jan and Jeff
- CFQ priority boost fix idle classes, from me
- cleanup series from Ming, improving our bio/bvec iteration
- a direct issue fix for blk-mq from Omar
- fix for plug merging not involving the IO scheduler, like we do for
other types of merges. From Tahsin
- expose DAX type internally and through sysfs. From Toshi and Yigal
* 'for-4.8/core' of git://git.kernel.dk/linux-block: (76 commits)
block: Fix front merge check
block: do not merge requests without consulting with io scheduler
block: Fix spelling in a source code comment
block: expose QUEUE_FLAG_DAX in sysfs
block: add QUEUE_FLAG_DAX for devices to advertise their DAX support
Btrfs: fix comparison in __btrfs_map_block()
block: atari: Return early for unsupported sector size
Doc: block: Fix a typo in queue-sysfs.txt
cfq-iosched: Charge at least 1 jiffie instead of 1 ns
cfq-iosched: Fix regression in bonnie++ rewrite performance
cfq-iosched: Convert slice_resid from u64 to s64
block: Convert fifo_time from ulong to u64
blktrace: avoid using timespec
block/blk-cgroup.c: Declare local symbols static
block/bio-integrity.c: Add #include "blk.h"
block/partition-generic.c: Remove a set-but-not-used variable
block: bio: kill BIO_MAX_SIZE
cfq-iosched: temporarily boost queue priority for idle classes
block: drbd: avoid to use BIO_MAX_SIZE
block: bio: remove BIO_MAX_SECTORS
...
Diffstat (limited to 'drivers/target/target_core_iblock.c')
-rw-r--r-- | drivers/target/target_core_iblock.c | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 7c4efb4417b0..22af12f8b8eb 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -312,7 +312,8 @@ static void iblock_bio_done(struct bio *bio) } static struct bio * -iblock_get_bio(struct se_cmd *cmd, sector_t lba, u32 sg_num) +iblock_get_bio(struct se_cmd *cmd, sector_t lba, u32 sg_num, int op, + int op_flags) { struct iblock_dev *ib_dev = IBLOCK_DEV(cmd->se_dev); struct bio *bio; @@ -334,18 +335,19 @@ iblock_get_bio(struct se_cmd *cmd, sector_t lba, u32 sg_num) bio->bi_private = cmd; bio->bi_end_io = &iblock_bio_done; bio->bi_iter.bi_sector = lba; + bio_set_op_attrs(bio, op, op_flags); return bio; } -static void iblock_submit_bios(struct bio_list *list, int rw) +static void iblock_submit_bios(struct bio_list *list) { struct blk_plug plug; struct bio *bio; blk_start_plug(&plug); while ((bio = bio_list_pop(list))) - submit_bio(rw, bio); + submit_bio(bio); blk_finish_plug(&plug); } @@ -387,9 +389,10 @@ iblock_execute_sync_cache(struct se_cmd *cmd) bio = bio_alloc(GFP_KERNEL, 0); bio->bi_end_io = iblock_end_io_flush; bio->bi_bdev = ib_dev->ibd_bd; + bio->bi_rw = WRITE_FLUSH; if (!immed) bio->bi_private = cmd; - submit_bio(WRITE_FLUSH, bio); + submit_bio(bio); return 0; } @@ -478,7 +481,7 @@ iblock_execute_write_same(struct se_cmd *cmd) goto fail; cmd->priv = ibr; - bio = iblock_get_bio(cmd, block_lba, 1); + bio = iblock_get_bio(cmd, block_lba, 1, REQ_OP_WRITE, 0); if (!bio) goto fail_free_ibr; @@ -491,7 +494,8 @@ iblock_execute_write_same(struct se_cmd *cmd) while (bio_add_page(bio, sg_page(sg), sg->length, sg->offset) != sg->length) { - bio = iblock_get_bio(cmd, block_lba, 1); + bio = iblock_get_bio(cmd, block_lba, 1, REQ_OP_WRITE, + 0); if (!bio) goto fail_put_bios; @@ -504,7 +508,7 @@ iblock_execute_write_same(struct se_cmd *cmd) sectors -= 1; } - iblock_submit_bios(&list, WRITE); + iblock_submit_bios(&list); return 0; fail_put_bios: @@ -677,8 +681,7 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, struct scatterlist *sg; u32 sg_num = sgl_nents; unsigned bio_cnt; - int rw = 0; - int i; + int i, op, op_flags = 0; if (data_direction == DMA_TO_DEVICE) { struct iblock_dev *ib_dev = IBLOCK_DEV(dev); @@ -687,18 +690,15 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, * Force writethrough using WRITE_FUA if a volatile write cache * is not enabled, or if initiator set the Force Unit Access bit. */ + op = REQ_OP_WRITE; if (test_bit(QUEUE_FLAG_FUA, &q->queue_flags)) { if (cmd->se_cmd_flags & SCF_FUA) - rw = WRITE_FUA; + op_flags = WRITE_FUA; else if (!test_bit(QUEUE_FLAG_WC, &q->queue_flags)) - rw = WRITE_FUA; - else - rw = WRITE; - } else { - rw = WRITE; + op_flags = WRITE_FUA; } } else { - rw = READ; + op = REQ_OP_READ; } ibr = kzalloc(sizeof(struct iblock_req), GFP_KERNEL); @@ -712,7 +712,7 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, return 0; } - bio = iblock_get_bio(cmd, block_lba, sgl_nents); + bio = iblock_get_bio(cmd, block_lba, sgl_nents, op, op_flags); if (!bio) goto fail_free_ibr; @@ -732,11 +732,12 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, while (bio_add_page(bio, sg_page(sg), sg->length, sg->offset) != sg->length) { if (bio_cnt >= IBLOCK_MAX_BIO_PER_TASK) { - iblock_submit_bios(&list, rw); + iblock_submit_bios(&list); bio_cnt = 0; } - bio = iblock_get_bio(cmd, block_lba, sg_num); + bio = iblock_get_bio(cmd, block_lba, sg_num, op, + op_flags); if (!bio) goto fail_put_bios; @@ -756,7 +757,7 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, goto fail_put_bios; } - iblock_submit_bios(&list, rw); + iblock_submit_bios(&list); iblock_complete_cmd(cmd); return 0; |