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| author | Jens Axboe <axboe@kernel.dk> | 2023-02-24 17:59:44 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-02-24 21:19:56 +0100 |
| commit | 11eb695feb636fa5211067189cad25ac073e7fe5 (patch) | |
| tree | 012349714053961ee1949a16487b67951f93f7f7 /block | |
| parent | loop: loop_set_status_from_info() check before assignment (diff) | |
| download | linux-11eb695feb636fa5211067189cad25ac073e7fe5.tar.xz linux-11eb695feb636fa5211067189cad25ac073e7fe5.zip | |
block: clear bio->bi_bdev when putting a bio back in the cache
This isn't strictly needed in terms of correctness, but it does allow
polling to know if the bio has been put already by a different task
and hence avoid polling something that we don't need to.
Cc: stable@vger.kernel.org
Fixes: be4d234d7aeb ("bio: add allocation cache abstraction")
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/bio.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/bio.c b/block/bio.c index 2693f34afb7e..605c40025068 100644 --- a/block/bio.c +++ b/block/bio.c @@ -772,6 +772,7 @@ static inline void bio_put_percpu_cache(struct bio *bio) if ((bio->bi_opf & REQ_POLLED) && !WARN_ON_ONCE(in_interrupt())) { bio->bi_next = cache->free_list; + bio->bi_bdev = NULL; cache->free_list = bio; cache->nr++; } else { |