Jens Axboe
0bf364984c
blk-mq: fix false negative out-of-tags condition ...
The blk-mq tagging tries to maintain some locality between CPUs and
the tags issued. The tags are split into groups of words, and the
words may not be fully populated. When searching for a new free tag,
blk-mq may look at partial words, hence it passes in an offset/size
to find_next_zero_bit(). However, it does that wrong, the size must
always be the full length of the number of tags in that word,
otherwise we'll potentially miss some near the end.
Another issue is when __bt_get() goes from one word set to the next.
It bumps the index, but not the last_tag associated with the
previous index. Bump that to be in the range of the new word.
Finally, clean up __bt_get() and __bt_get_word() a bit and get
rid of the goto in there, and the unnecessary 'wrap' variable.
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-01-14 08:49:55 -07:00
block: Replace strnicmp with strncasecmp
2014-09-27 16:48:55 -06:00
block: fix regression where bio_integrity_process uses wrong bio_vec iterator
2014-12-02 08:15:21 -07:00
bio: modify __bio_add_page() to accept pages that don't start a new segment
2014-12-11 09:11:52 -07:00
blkcg: remove blkcg->id
2014-09-08 09:55:37 -06:00
blkcg: remove blkcg->id
2014-09-08 09:55:37 -06:00
block: wake up waiters when a queue is marked dying
2014-12-31 09:39:16 -07:00
blk-mq: avoid infinite recursion with the FUA flag
2014-09-22 11:55:19 -06:00
blk-mq: support per-distpatch_queue flush machinery
2014-09-25 15:22:45 -06:00
block: Don't merge requests if integrity flags differ
2014-09-27 09:14:57 -06:00
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
2014-06-03 12:57:53 -07:00
block/blk-lib.c: make __blkdev_issue_zeroout static
2014-05-26 17:39:09 -06:00
block: remove struct request buffer member
2014-04-15 14:03:02 -06:00
block: blk-merge: fix blk_recount_segments()
2014-11-11 16:24:15 -07:00
blk-mq: add file comments and update copyright notices
2014-05-28 10:15:41 -06:00
blk-mq: Use all available hardware queues
2014-12-09 09:08:21 -07:00
blk-mq: Fix uninitialized kobject at CPU hotplugging
2014-12-10 08:57:31 -07:00
blk-mq: fix false negative out-of-tags condition
2015-01-14 08:49:55 -07:00
block: wake up waiters when a queue is marked dying
2014-12-31 09:39:16 -07:00
blk-mq: export blk_mq_freeze_queue()
2015-01-02 15:05:12 -07:00
block: wake up waiters when a queue is marked dying
2014-12-31 09:39:16 -07:00
block: remove artifical max_hw_sectors cap
2014-10-21 14:02:54 -06:00
block: fix regression with block enabled tagging
2014-04-09 21:54:06 -06:00
blk-mq: Fix a use-after-free
2014-12-09 09:07:13 -07:00
block: don't assume last put of shared tags is for the host
2014-07-08 12:25:28 +02:00
cgroup: remove sane_behavior support on non-default hierarchies
2014-07-09 10:08:08 -04:00
block: fix blk_abort_request on blk-mq
2014-09-22 12:00:08 -06:00
blk-mq: support per-distpatch_queue flush machinery
2014-09-25 15:22:45 -06:00
mm: convert some level-less printks to pr_*
2014-06-06 16:08:18 -07:00
bsg: fix potential error pointer dereference
2014-08-29 08:34:14 -06:00
Merge branch 'for-linus' into for-3.18/core
2014-09-11 09:31:18 -06:00
block, bdi: an active gendisk always has a request_queue associated with it
2014-09-08 10:00:35 -06:00
block / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-04 01:00:23 +01:00
genhd: check for int overflow in disk_expand_part_tbl()
2014-11-19 13:09:07 -07:00
block, bdi: an active gendisk always has a request_queue associated with it
2014-09-08 10:00:35 -06:00
block: Fix computation of merged request priority
2014-10-31 08:30:43 -06:00
block: Add T10 Protection Information functions
2014-09-27 09:14:59 -06:00
block: Add T10 Protection Information functions
2014-09-27 09:14:59 -06:00
block: Fix dev_t minor allocation lifetime
2014-09-03 15:01:02 -06:00
Merge remote-tracking branch 'scsi-queue/core-for-3.19' into for-linus
2014-12-08 07:40:20 -08:00
block: Add T10 Protection Information functions
2014-09-27 09:14:59 -06:00
0bf364984c