diff options
| author | Ming Lei <ming.lei@redhat.com> | 2025-05-05 22:18:01 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-05-06 07:43:43 -0600 |
| commit | 0a47d2b433ad275236d625b9f09c6d3672329712 (patch) | |
| tree | f941ca698f07c1ef6407a43e6f61d5511c351fef /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 9dc7a882ce96482bfff3dba51dadcbe68daeac6c (diff) | |
block: don't acquire ->elevator_lock in blk_mq_map_swqueue and blk_mq_realloc_hw_ctxs
Both blk_mq_map_swqueue() and blk_mq_realloc_hw_ctxs() are called before
the request queue is added to tagset list, so the two won't run concurrently
with blk_mq_update_nr_hw_queues().
When the two functions are only called from queue initialization or
blk_mq_update_nr_hw_queues(), elevator switch can't happen.
So remove ->elevator_lock uses from the two functions.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250505141805.2751237-24-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions
