diff options
| author | Tejun Heo <[email protected]> | 2021-10-14 13:20:22 -1000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2021-10-18 06:17:01 -0600 |
| commit | 3c08b0931eedd04c530040499fadeccab50ed646 (patch) | |
| tree | 8d204be36c3df0a58fdc58cb1c785f1f5812def5 /tools/perf/scripts/python | |
| parent | 519d81956ee277b4419c723adfb154603c2565ba (diff) | |
blk-cgroup: blk_cgroup_bio_start() should use irq-safe operations on blkg->iostat_cpu
c3df5fb57fe8 ("cgroup: rstat: fix A-A deadlock on 32bit around
u64_stats_sync") made u64_stats updates irq-safe to avoid A-A deadlocks.
Unfortunately, the conversion missed one in blk_cgroup_bio_start(). Fix it.
Fixes: 2d146aa3aa84 ("mm: memcontrol: switch to rstat")
Cc: [email protected] # v5.13+
Reported-by: [email protected]
Signed-off-by: Tejun Heo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions