4.9-stable review patch. If anyone has any objections, please let me know.
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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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/raid10.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4089,6 +4089,7 @@ static int raid10_start_reshape(struct m diff = 0; if (first || diff < min_offset_diff) min_offset_diff = diff; + first = 0; } }