| Message ID | 20250310115453.2271109-1-ming.lei@redhat.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [V2] block: make sure ->nr_integrity_segments is cloned in blk_rq_prep_clone | expand |
Looks good:
Reviewed-by: Christoph Hellwig <hch@lst.de>
On Mon, 10 Mar 2025 19:54:53 +0800, Ming Lei wrote: > Make sure ->nr_integrity_segments is cloned in blk_rq_prep_clone(), > otherwise requests cloned by device-mapper multipath will not have the > proper nr_integrity_segments values set, then BUG() is hit from > sg_alloc_table_chained(). > > Applied, thanks! [1/1] block: make sure ->nr_integrity_segments is cloned in blk_rq_prep_clone commit: fc0e982b8a3a169b1c654d9a1aa45bf292943ef2 Best regards,
diff --git a/block/blk-mq.c b/block/blk-mq.c index 40490ac88045..005c520d3498 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -3314,6 +3314,7 @@ int blk_rq_prep_clone(struct request *rq, struct request *rq_src, rq->special_vec = rq_src->special_vec; } rq->nr_phys_segments = rq_src->nr_phys_segments; + rq->nr_integrity_segments = rq_src->nr_integrity_segments; if (rq->bio && blk_crypto_rq_bio_prep(rq, rq->bio, gfp_mask) < 0) goto free_and_out;
Make sure ->nr_integrity_segments is cloned in blk_rq_prep_clone(), otherwise requests cloned by device-mapper multipath will not have the proper nr_integrity_segments values set, then BUG() is hit from sg_alloc_table_chained(). Fixes: b0fd271d5fba ("block: add request clone interface (v2)") Cc: stable@vger.kernel.org Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Ming Lei <ming.lei@redhat.com> --- V2: - rewords commit log(Christoph) - add fixes tag(Christoph) block/blk-mq.c | 1 + 1 file changed, 1 insertion(+)