[PATCH v3 21/21] md/raid5: split reshape bios before bitmap accounting
From: Yu Kuai <yukuai@kernel.org>
Date: 2026-07-28 08:51:10
Also in:
lkml
Subsystem:
software raid (multiple disks) support, the rest · Maintainers:
Song Liu, Yu Kuai, Linus Torvalds
From: Yu Kuai <yukuai@fygo.io> Use the shared mddev_bio_split_at_reshape_offset() helper so RAID5 submits only one-side bios to llbitmap during reshape. Signed-off-by: Yu Kuai <yukuai@fygo.io> --- drivers/md/raid5.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index f70b2f611980..30e18ce7c0e3 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c@@ -6184,6 +6184,14 @@ static bool raid5_make_request(struct mddev *mddev, struct bio * bi) return true; } + bi = mddev_bio_split_at_reshape_offset(mddev, bi, NULL, + &conf->bio_split); + if (!bi) { + if (rw == WRITE) + md_write_end(mddev); + return true; + } + logical_sector = bi->bi_iter.bi_sector & ~((sector_t)RAID5_STRIPE_SECTORS(conf)-1); bi->bi_next = NULL;
--
2.51.0