This is a note to let you know that I've just added the patch titled md/raid10: skip spare disk as 'first' disk to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: md-raid10-skip-spare-disk-as-first-disk.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Thu Mar 22 14:57:32 CET 2018 From: Shaohua Li <shli@xxxxxx> Date: Mon, 1 May 2017 12:15:07 -0700 Subject: md/raid10: skip spare disk as 'first' disk From: Shaohua Li <shli@xxxxxx> [ 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@xxxxxxxx> Cc: NeilBrown <neilb@xxxxxxxx> Signed-off-by: Shaohua Li <shli@xxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/md/raid10.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4044,6 +4044,7 @@ static int raid10_start_reshape(struct m diff = 0; if (first || diff < min_offset_diff) min_offset_diff = diff; + first = 0; } } Patches currently in stable-queue which might be from shli@xxxxxx are queue-4.4/md-raid10-wait-up-frozen-array-in-handle_write_completed.patch queue-4.4/md-raid10-skip-spare-disk-as-first-disk.patch