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author | Jens Axboe <axboe@kernel.dk> | 2024-01-12 09:12:20 -0700 |
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committer | Jens Axboe <axboe@kernel.dk> | 2024-01-12 21:09:42 -0700 |
commit | 7b4f36cd22a65b750b4cb6ac14804fb7d6e6c67d (patch) | |
tree | 864387a9062eca7d66d11bcc685c81dc1b9fa7f6 /drivers/block | |
parent | 309ce6741430b5a7b5e85cd1a7569647f8d9dfa6 (diff) | |
download | linux-7b4f36cd22a65b750b4cb6ac14804fb7d6e6c67d.tar.gz linux-7b4f36cd22a65b750b4cb6ac14804fb7d6e6c67d.tar.bz2 linux-7b4f36cd22a65b750b4cb6ac14804fb7d6e6c67d.zip |
block: ensure we hold a queue reference when using queue limits
q_usage_counter is the only thing preventing us from the limits changing
under us in __bio_split_to_limits, but blk_mq_submit_bio doesn't hold
it while calling into it.
Move the splitting inside the region where we know we've got a queue
reference. Ideally this could still remain a shared section of code, but
let's keep the fix simple and defer any refactoring here to later.
Reported-by: Christoph Hellwig <hch@lst.de>
Fixes: 900e08075202 ("block: move queue enter logic into blk_mq_submit_bio()")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
0 files changed, 0 insertions, 0 deletions