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authorShaohua Li <shli@fb.com>2018-10-14 17:05:07 -0700
committerShaohua Li <shli@fb.com>2018-10-14 17:05:07 -0700
commit9e753ba9b9b405e3902d9f08aec5f2ea58a0c317 (patch)
treee13775c41d767d74ea43520db9d064829f7a133b /drivers/md/raid1.c
parentmd/bitmap: use mddev_suspend/resume instead of ->quiesce() (diff)
downloadlinux-dev-9e753ba9b9b405e3902d9f08aec5f2ea58a0c317.tar.xz
linux-dev-9e753ba9b9b405e3902d9f08aec5f2ea58a0c317.zip
MD: fix invalid stored role for a disk - try2
Commit d595567dc4f0 (MD: fix invalid stored role for a disk) broke linear hotadd. Let's only fix the role for disks in raid1/10. Based on Guoqing's original patch. Reported-by: kernel test robot <rong.a.chen@intel.com> Cc: Gioh Kim <gi-oh.kim@profitbricks.com> Cc: Guoqing Jiang <gqjiang@suse.com> Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'drivers/md/raid1.c')
-rw-r--r--drivers/md/raid1.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4e990246225e..1d54109071cc 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1734,6 +1734,7 @@ static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev)
*/
if (rdev->saved_raid_disk >= 0 &&
rdev->saved_raid_disk >= first &&
+ rdev->saved_raid_disk < conf->raid_disks &&
conf->mirrors[rdev->saved_raid_disk].rdev == NULL)
first = last = rdev->saved_raid_disk;