This is a note to let you know that I've just added the patch titled

raid5-ppl: check recovery_offset when performing ppl recovery

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: raid5-ppl-check-recovery_offset-when-performing-ppl-recovery.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Mon Dec 18 13:29:00 CET 2017

From: Artur Paszkiewicz artur.paszkiewicz@intel.com Date: Fri, 29 Sep 2017 22:54:19 +0200 Subject: raid5-ppl: check recovery_offset when performing ppl recovery

From: Artur Paszkiewicz artur.paszkiewicz@intel.com

[ Upstream commit 07719ff767dcd8cc42050f185d332052f3816546 ]

If starting an array that is undergoing rebuild, make ppl recovery honor the recovery_offset of a member disk and don't read data that is not yet in-sync.

Signed-off-by: Artur Paszkiewicz artur.paszkiewicz@intel.com Signed-off-by: Shaohua Li shli@fb.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/raid5-ppl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/md/raid5-ppl.c +++ b/drivers/md/raid5-ppl.c @@ -758,7 +758,8 @@ static int ppl_recover_entry(struct ppl_ (unsigned long long)sector);

rdev = conf->disks[dd_idx].rdev; - if (!rdev) { + if (!rdev || (!test_bit(In_sync, &rdev->flags) && + sector >= rdev->recovery_offset)) { pr_debug("%s:%*s data member disk %d missing\n", __func__, indent, "", dd_idx); update_parity = false;

Patches currently in stable-queue which might be from artur.paszkiewicz@intel.com are

queue-4.14/raid5-ppl-check-recovery_offset-when-performing-ppl-recovery.patch