diff options
| author | Christoph Hellwig <hch@infradead.org> | 2023-11-13 11:52:31 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-11-13 08:52:52 -0700 |
| commit | b0077e269f6c152e807fdac90b58caf012cdbaab (patch) | |
| tree | 2c958e264aee391420f196ffab37239800849702 /block/blk-throttle.c | |
| parent | b85ea95d086471afb4ad062012a4d73cd328fa86 (diff) | |
blk-mq: make sure active queue usage is held for bio_integrity_prep()
blk_integrity_unregister() can come if queue usage counter isn't held
for one bio with integrity prepared, so this request may be completed with
calling profile->complete_fn, then kernel panic.
Another constraint is that bio_integrity_prep() needs to be called
before bio merge.
Fix the issue by:
- call bio_integrity_prep() with one queue usage counter grabbed reliably
- call bio_integrity_prep() before bio merge
Fixes: 900e080752025f00 ("block: move queue enter logic into blk_mq_submit_bio()")
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Link: https://lore.kernel.org/r/20231113035231.2708053-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-throttle.c')
0 files changed, 0 insertions, 0 deletions