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aee8960c2eae12636040dbf0f04e135273b1612d
linux/block
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Uros Bizjak aee8960c2e blk-iolatency: Use atomic{,64}_try_cmpxchg 
Use atomic_try_cmpxchg instead of atomic_cmpxchg (*ptr, old, new) == old
in check_scale_change and atomic64_try_cmpxchg in blkcg_iolatency_done_bio.
x86 CMPXCHG instruction returns success in ZF flag, so this change saves a
compare after cmpxchg (and related move instruction in front of cmpxchg).

No functional change intended.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/20220712151947.6783-1-ubizjak@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-12 15:45:31 -06:00
..
partitions
block: pass a gendisk to blk_queue_set_zoned
2022-07-06 06:46:26 -06:00
badblocks.c
block/badblocks: Remove redundant assignments
2022-04-23 07:15:26 -06:00
bdev.c
Merge tag 'exfat-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
2022-05-24 18:30:27 -07:00
bfq-cgroup.c
block: bfq: Fix kernel-doc headers
2022-06-27 06:29:12 -06:00
bfq-iosched.c
block/bfq: Enable I/O statistics
2022-06-16 16:59:28 -06:00
bfq-iosched.h
bfq: Relax waker detection for shared queues
2022-05-19 06:52:33 -06:00
bfq-wf2q.c
block: bfq: Fix kernel-doc headers
2022-06-27 06:29:12 -06:00
bio-integrity.c
Merge tag 'for-5.18/block-2022-03-18' of git://git.kernel.dk/linux-block
2022-03-21 16:48:55 -07:00
bio.c
block: use bdev_is_zoned instead of open coding it
2022-07-06 06:46:25 -06:00
blk-cgroup-fc-appid.c
blk-cgroup: move blkcg_{get,set}_fc_appid out of line
2022-05-02 14:06:20 -06:00
blk-cgroup-rwstat.c
blk-cgroup: Fix the recursive blkg rwstat
2021-03-05 11:32:15 -07:00
blk-cgroup-rwstat.h
block: partition include/linux/blk-cgroup.h
2022-02-11 10:02:41 -07:00
blk-cgroup.c
blk-cgroup: factor out blkcg_free_all_cpd()
2022-06-29 11:09:53 -06:00
blk-cgroup.h
blk-cgroup: always terminate io.stat lines
2022-05-17 06:11:17 -06:00
blk-core.c
block: Use try_cmpxchg in update_io_ticks
2022-07-12 14:39:06 -06:00
blk-crypto-fallback.c
block: remove superfluous calls to blkcg_bio_issue_init
2022-05-04 18:29:52 -06:00
blk-crypto-internal.h
blk-crypto: show crypto capabilities in sysfs
2022-02-28 06:40:23 -07:00
blk-crypto-profile.c
blk-crypto: remove blk_crypto_unregister()
2021-11-29 06:38:51 -07:00
blk-crypto-sysfs.c
blk-crypto: show crypto capabilities in sysfs
2022-02-28 06:40:23 -07:00
blk-crypto.c
blk-crypto: show crypto capabilities in sysfs
2022-02-28 06:40:23 -07:00
blk-flush.c
block: pass a block_device and opf to bio_init
2022-02-02 07:49:59 -07:00
blk-ia-ranges.c
block: simplify disk_set_independent_access_ranges
2022-06-29 08:36:46 -06:00
blk-integrity.c
blk-crypto: remove blk_crypto_unregister()
2021-11-29 06:38:51 -07:00
blk-ioc.c
block: fix default IO priority handling again
2022-06-27 06:29:12 -06:00
blk-iocost.c
blk-iocost: Simplify ioc_rqos_done()
2022-06-27 06:29:11 -06:00
blk-iolatency.c
blk-iolatency: Use atomic{,64}_try_cmpxchg
2022-07-12 15:45:31 -06:00
blk-ioprio.c
blk-ioprio: Convert from rqos policy to direct call
2022-06-27 06:29:12 -06:00
blk-ioprio.h
blk-ioprio: Convert from rqos policy to direct call
2022-06-27 06:29:12 -06:00
blk-lib.c
block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD
2022-04-17 19:49:59 -06:00
blk-map.c
block/blk-map: Remove redundant assignment
2022-04-23 07:15:26 -06:00
blk-merge.c
block: simplify blk_mq_plug
2022-07-06 06:46:25 -06:00
blk-mq-cpumap.c
blk-mq: remove the calling of local_memory_node()
2020-10-20 07:08:17 -06:00
blk-mq-debugfs-zoned.c
block: move zone related fields to struct gendisk
2022-07-06 06:46:26 -06:00
blk-mq-debugfs.c
blk-mq: don't create hctx debugfs dir until q->debugfs_dir is created
2022-07-12 06:52:27 -06:00
blk-mq-debugfs.h
block: remove per-disk debugfs files in blk_unregister_queue
2022-06-17 07:31:05 -06:00
blk-mq-pci.c
block: Fix blk_mq_*_map_queues() kernel-doc headers
2019-05-31 15:12:34 -06:00
blk-mq-rdma.c
block: Fix blk_mq_*_map_queues() kernel-doc headers
2019-05-31 15:12:34 -06:00
blk-mq-sched.c
block: serialize all debugfs operations using q->debugfs_mutex
2022-06-17 07:31:05 -06:00
blk-mq-sched.h
block: move blk_mq_sched_assign_ioc to blk-ioc.c
2021-11-29 06:41:29 -07:00
blk-mq-sysfs.c
blk-mq: cleanup disk sysfs registration
2022-06-28 11:32:42 -06:00
blk-mq-tag.c
blk-mq: Drop local variable for reserved tag
2022-07-06 06:33:53 -06:00
blk-mq-tag.h
blk-mq: blk_mq_tag_busy is no need to return a value
2022-06-27 06:29:12 -06:00
blk-mq-virtio.c
blk-mq: Fix typo in comment
2020-03-17 20:55:21 +01:00
blk-mq.c
block: simplify blk_mq_plug
2022-07-06 06:46:25 -06:00
blk-mq.h
block: simplify blk_mq_plug
2022-07-06 06:46:25 -06:00
blk-pm.c
scsi: block: pm: Always set request queue runtime active in blk_post_runtime_resume()
2021-12-22 23:38:29 -05:00
blk-pm.h
block: Remove unused blk_pm_*() function definitions
2021-02-22 06:33:48 -07:00
blk-rq-qos.c
block/rq_qos: Use atomic_try_cmpxchg in atomic_inc_below
2022-07-12 14:38:52 -06:00
blk-rq-qos.h
block: serialize all debugfs operations using q->debugfs_mutex
2022-06-17 07:31:05 -06:00
blk-settings.c
block: pass a gendisk to blk_queue_clear_zone_settings
2022-07-06 06:46:26 -06:00
blk-stat.c
block: make queue stat accounting a reference
2021-12-14 17:23:05 -07:00
blk-stat.h
block: make queue stat accounting a reference
2021-12-14 17:23:05 -07:00
blk-sysfs.c
block: move zone related fields to struct gendisk
2022-07-06 06:46:26 -06:00
blk-throttle.c
blk-throttle: Set BIO_THROTTLED when bio has been throttled
2022-05-17 19:32:10 -06:00
blk-throttle.h
block: cancel all throttled bios in del_gendisk()
2022-03-18 09:57:56 -06:00
blk-timeout.c
block: blk-timeout: delete duplicated word
2020-07-31 16:29:47 -06:00
blk-wbt.c
blk-wbt: prevent NULL pointer dereference in wb_timer_fn
2021-10-19 06:13:41 -06:00
blk-wbt.h
blk-wbt: remove wbt_track stub
2022-03-31 12:58:38 -06:00
blk-zoned.c
block: move zone related fields to struct gendisk
2022-07-06 06:46:26 -06:00
blk.h
block: pass a gendisk to blk_queue_free_zone_bitmaps
2022-07-06 06:46:26 -06:00
bounce.c
block/bounce: count bytes instead of sectors
2022-06-27 06:29:11 -06:00
bsg-lib.c
blk-mq: Drop blk_mq_ops.timeout 'reserved' arg
2022-07-06 06:33:53 -06:00
bsg.c
scsi: bsg: Fix device unregistration
2021-09-14 00:22:15 -04:00
disk-events.c
block: remove genhd.h
2022-02-02 07:49:59 -07:00
elevator.c
Merge tag 'for-5.18/block-2022-03-18' of git://git.kernel.dk/linux-block
2022-03-21 16:48:55 -07:00
elevator.h
block: move elevator.h to block/
2021-10-18 06:17:01 -06:00
fops.c
block: relax direct io memory alignment
2022-06-27 06:29:11 -06:00
genhd.c
block: pass a gendisk to blk_queue_free_zone_bitmaps
2022-07-06 06:46:26 -06:00
holder.c
block: remove WARN_ON() from bd_link_disk_holder
2022-06-23 07:48:05 -06:00
ioctl.c
block: replace blkdev_nr_zones with bdev_nr_zones
2022-07-06 06:46:26 -06:00
ioprio.c
block: Fix handling of tasks without ioprio in ioprio_get(2)
2022-06-27 06:29:12 -06:00
Kconfig
block: remove "select BLK_RQ_IO_DATA_LEN" from BLK_CGROUP_IOCOST dependency
2022-06-29 08:35:57 -06:00
Kconfig.iosched
block: only build the icq tracking code when needed
2021-12-16 10:59:02 -07:00
kyber-iosched.c
blk-mq: avoid to touch q->elevator without any protection
2022-06-16 14:45:15 -06:00
Makefile
blk-cgroup: move blkcg_{get,set}_fc_appid out of line
2022-05-02 14:06:20 -06:00
mq-deadline.c
blk-mq: avoid to touch q->elevator without any protection
2022-06-16 14:45:15 -06:00
opal_proto.h
block: sed-opal: Change the check condition for regular session validity
2020-03-12 08:00:10 -06:00
sed-opal.c
block: remove genhd.h
2022-02-02 07:49:59 -07:00
t10-pi.c
block: add pi for extended integrity
2022-03-07 12:48:35 -07:00