Patch "raid5-ppl: check recovery_offset when performing ppl recovery" has been added to the 4.14-stable tree

Patch "raid5-ppl: check recovery_offset when performing ppl recovery" has been added to the 4.14-stable tree

[gregkh]

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;a=summary

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