On Fri, 2018-03-23 at 10:54 +0100, Greg Kroah-Hartman wrote:
4.4-stable review patch. If anyone has any objections, please let me know.
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)
But that commit hasn't been applied to 4.4-stable. It probably should be, since it fixes another instance of the problem in the run() function. Take care not to add the wrongly placed assignment in raid10_start_reshape().
Ben.
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 @@ -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;} }