From b8cb6b4c121e1bf1963c16ed69e7adcb1bc301cd Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 18 Sep 2014 11:09:04 +1000 Subject: [PATCH] md/raid1: fix_read_error should act on all non-faulty devices. If a devices is being recovered it is not InSync and is not Faulty. If a read error is experienced on that device, fix_read_error() will be called, but it ignores non-InSync devices. So it will neither fix the error nor fail the device. It is incorrect that fix_read_error() ignores non-InSync devices. It should only ignore Faulty devices. So fix it. This became a bug when we allowed reading from a device that was being recovered. It is suitable for any subsequent -stable kernel. Fixes: da8840a747c0dbf49506ec906757a6b87b9741e9 Cc: stable@vger.kernel.org (v3.5+) Reported-by: Alexander Lyakas Tested-by: Alexander Lyakas Signed-off-by: NeilBrown --- drivers/md/raid1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 35649ddac9bc..55de4f6f7eaf 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2155,7 +2155,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk, d--; rdev = conf->mirrors[d].rdev; if (rdev && - test_bit(In_sync, &rdev->flags)) + !test_bit(Faulty, &rdev->flags)) r1_sync_page_io(rdev, sect, s, conf->tmppage, WRITE); } @@ -2167,7 +2167,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk, d--; rdev = conf->mirrors[d].rdev; if (rdev && - test_bit(In_sync, &rdev->flags)) { + !test_bit(Faulty, &rdev->flags)) { if (r1_sync_page_io(rdev, sect, s, conf->tmppage, READ)) { atomic_add(s, &rdev->corrected_errors); -- 2.30.2