diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-27 01:03:07 +0300 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-27 01:03:07 +0300 |
commit | d05d7f40791ccbb6e543cc5dd6a6aa08fc71d635 (patch) | |
tree | dc0039fe490a41a70de10d58fe8e6136db46463a /drivers/md/dm-cache-target.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/md/dm-cache-target.c')
-rw-r--r-- | drivers/md/dm-cache-target.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index ee0510f9a85e..718744db62df 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -788,7 +788,8 @@ static void check_if_tick_bio_needed(struct cache *cache, struct bio *bio) spin_lock_irqsave(&cache->lock, flags); if (cache->need_tick_bio && - !(bio->bi_rw & (REQ_FUA | REQ_FLUSH | REQ_DISCARD))) { + !(bio->bi_rw & (REQ_FUA | REQ_PREFLUSH)) && + bio_op(bio) != REQ_OP_DISCARD) { pb->tick = true; cache->need_tick_bio = false; } @@ -829,7 +830,7 @@ static dm_oblock_t get_bio_block(struct cache *cache, struct bio *bio) static int bio_triggers_commit(struct cache *cache, struct bio *bio) { - return bio->bi_rw & (REQ_FLUSH | REQ_FUA); + return bio->bi_rw & (REQ_PREFLUSH | REQ_FUA); } /* @@ -851,7 +852,7 @@ static void inc_ds(struct cache *cache, struct bio *bio, static bool accountable_bio(struct cache *cache, struct bio *bio) { return ((bio->bi_bdev == cache->origin_dev->bdev) && - !(bio->bi_rw & REQ_DISCARD)); + bio_op(bio) != REQ_OP_DISCARD); } static void accounted_begin(struct cache *cache, struct bio *bio) @@ -1067,7 +1068,8 @@ static void dec_io_migrations(struct cache *cache) static bool discard_or_flush(struct bio *bio) { - return bio->bi_rw & (REQ_FLUSH | REQ_FUA | REQ_DISCARD); + return bio_op(bio) == REQ_OP_DISCARD || + bio->bi_rw & (REQ_PREFLUSH | REQ_FUA); } static void __cell_defer(struct cache *cache, struct dm_bio_prison_cell *cell) @@ -1612,8 +1614,8 @@ static void process_flush_bio(struct cache *cache, struct bio *bio) remap_to_cache(cache, bio, 0); /* - * REQ_FLUSH is not directed at any particular block so we don't - * need to inc_ds(). REQ_FUA's are split into a write + REQ_FLUSH + * REQ_PREFLUSH is not directed at any particular block so we don't + * need to inc_ds(). REQ_FUA's are split into a write + REQ_PREFLUSH * by dm-core. */ issue(cache, bio); @@ -1978,9 +1980,9 @@ static void process_deferred_bios(struct cache *cache) bio = bio_list_pop(&bios); - if (bio->bi_rw & REQ_FLUSH) + if (bio->bi_rw & REQ_PREFLUSH) process_flush_bio(cache, bio); - else if (bio->bi_rw & REQ_DISCARD) + else if (bio_op(bio) == REQ_OP_DISCARD) process_discard_bio(cache, &structs, bio); else process_bio(cache, &structs, bio); |