linux-kernel - [PATCH] BTRFS: Runs the xor function if a Block has failed

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 30 Dec 2015 01:28:36 -0500
From:	Sanidhya Solanki <jpage.lkml@...il.com>
To:	clm@...com, jbacik@...com, dsterba@...e.com, jpage.lkml@...il.com
Cc:	linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org
Subject: [PATCH] BTRFS: Runs the xor function if a Block has failed

The patch adds the xor function after the P stripe
has failed, without bad data or the Q stripe.

Signed-off-by: Sanidhya Solanki <jpage.lkml@...il.com>
---
 fs/btrfs/raid56.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 1a33d3e..d33734a 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1864,8 +1864,8 @@ static void __raid_recover_end_io(struct btrfs_raid_bio *rbio)
 					/*
 					 * Just the P stripe has failed, without
 					 * a bad data or Q stripe.
-					 * TODO, we should redo the xor here.
 					 */
+					run_xor(pointers, rbio->nr_data - 1, PAGE_CACHE_SIZE);
 					err = -EIO;
 					goto cleanup;
 				}
-- 
2.5.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/