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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-04 13:28:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-04 13:28:39 -0800
commitb3298500b23f0b53a8d81e0d5ad98a29db71f4f0 (patch)
tree76ef721fa8af39c8d3279f5bc3e23e8070a2a098 /include
parente87297fa080a7ed6b431873c771b3801cab573f5 (diff)
parentbde3808bc8c2741ad3d804f84720409aee0c2972 (diff)
downloadlinux-b3298500b23f0b53a8d81e0d5ad98a29db71f4f0.tar.bz2
Merge tag 'for-5.10/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer: - Fix DM's bio splitting changes that were made during v5.9. This restores splitting in terms of varied per-target ti->max_io_len rather than use block core's single stacked 'chunk_sectors' limit. - Like DM crypt, update DM integrity to not use crypto drivers that have CRYPTO_ALG_ALLOCATES_MEMORY set. - Fix DM writecache target's argument parsing and status display. - Remove needless BUG() from dm writecache's persistent_memory_claim() - Remove old gcc workaround in DM cache target's block_div() for ARM link errors now that gcc >= 4.9 is required. - Fix RCU locking in dm_blk_report_zones and dm_dax_zero_page_range. - Remove old, and now frowned upon, BUG_ON(in_interrupt()) in dm_table_event(). - Remove invalid sparse annotations from dm_prepare_ioctl() and dm_unprepare_ioctl(). * tag 'for-5.10/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm: remove invalid sparse __acquires and __releases annotations dm: fix double RCU unlock in dm_dax_zero_page_range() error path dm: fix IO splitting dm writecache: remove BUG() and fail gracefully instead dm table: Remove BUG_ON(in_interrupt()) dm: fix bug with RCU locking in dm_blk_report_zones Revert "dm cache: fix arm link errors with inline" dm writecache: fix the maximum number of arguments dm writecache: advance the number of arguments when reporting max_age dm integrity: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY
Diffstat (limited to 'include')
-rw-r--r--include/linux/blkdev.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 639cae2c158b..24ae504cf77d 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1073,11 +1073,12 @@ static inline unsigned int blk_queue_get_max_sectors(struct request_queue *q,
* file system requests.
*/
static inline unsigned int blk_max_size_offset(struct request_queue *q,
- sector_t offset)
+ sector_t offset,
+ unsigned int chunk_sectors)
{
- unsigned int chunk_sectors = q->limits.chunk_sectors;
-
- if (!chunk_sectors)
+ if (!chunk_sectors && q->limits.chunk_sectors)
+ chunk_sectors = q->limits.chunk_sectors;
+ else
return q->limits.max_sectors;
if (likely(is_power_of_2(chunk_sectors)))
@@ -1101,7 +1102,7 @@ static inline unsigned int blk_rq_get_max_sectors(struct request *rq,
req_op(rq) == REQ_OP_SECURE_ERASE)
return blk_queue_get_max_sectors(q, req_op(rq));
- return min(blk_max_size_offset(q, offset),
+ return min(blk_max_size_offset(q, offset, 0),
blk_queue_get_max_sectors(q, req_op(rq)));
}