From: Shaohua Li shli@fb.com
[ Upstream commit b506335e5d2b4ec687dde392a3bdbf7601778f1d ]
Commit 6f287ca(md/raid10: reset the 'first' at the end of loop) ignores a case in reshape, the first rdev could be a spare disk, which shouldn't be accounted as the first disk since it doesn't include the offset info.
Fix: 6f287ca(md/raid10: reset the 'first' at the end of loop) Cc: Guoqing Jiang gqjiang@suse.com Cc: NeilBrown neilb@suse.com Signed-off-by: Shaohua Li shli@fb.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/md/raid10.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index d207748fdc41..432c17fa636e 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4132,6 +4132,7 @@ static int raid10_start_reshape(struct mddev *mddev) diff = 0; if (first || diff < min_offset_diff) min_offset_diff = diff; + first = 0; } }