diff options
| author | Damien Le Moal <[email protected]> | 2024-05-01 20:09:01 +0900 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2024-05-01 08:08:43 -0600 |
| commit | af147b740f111730c2e387ee6c0ac3ada7d51117 (patch) | |
| tree | de842594a9a1c4bfc784869129faa2371421b961 | |
| parent | 7b295187287e0006dd1b0b95f995f00878e436c5 (diff) | |
block: Fix flush request sector restore
Make sure that a request bio is not NULL before trying to restore the
request start sector.
Reported-by: Yi Zhang <[email protected]>
Fixes: 6f8fd758de63 ("block: Restore sector of flush requests")
Signed-off-by: Damien Le Moal <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
| -rw-r--r-- | block/blk-flush.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c index 2f58ae018464..c17cf8ed8113 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -130,7 +130,8 @@ static void blk_flush_restore_request(struct request *rq) * original @rq->bio. Restore it. */ rq->bio = rq->biotail; - rq->__sector = rq->bio->bi_iter.bi_sector; + if (rq->bio) + rq->__sector = rq->bio->bi_iter.bi_sector; /* make @rq a normal request */ rq->rq_flags &= ~RQF_FLUSH_SEQ; |