diff options
| author | Ming Lei <[email protected]> | 2021-11-02 23:36:19 +0800 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2021-11-03 09:27:57 -0600 |
| commit | 3b87c6ea671a18fb77709240d658f4201904f8e4 (patch) | |
| tree | b00741334fd7d7a7e1fed3350bd6a2172db76ab2 /tools/perf/util/trace-event-scripting.c | |
| parent | 62ba0c008f5d46006b71b2757e2db29e0ce7e68b (diff) | |
blk-mq: update hctx->nr_active in blk_mq_end_request_batch()
In case of shared tags and none io sched, batched completion still may
be run into, and hctx->nr_active is accounted when getting driver tag,
so it has to be updated in blk_mq_end_request_batch().
Otherwise, hctx->nr_active may become same with queue depth, then
hctx_may_queue() always return false, then io hang is caused.
Fixes the issue by updating the counter in batched way.
Reported-by: Shinichiro Kawasaki <[email protected]>
Fixes: f794f3351f26 ("block: add support for blk_mq_end_request_batch()")
Signed-off-by: Ming Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions