From: Lachlan McIlroy <lachlan@sgi.com>
Date: Fri, 26 Sep 2008 02:16:46 +0000 (+1000)
Subject: [XFS] Fix extent list corruption in xfs_iext_irec_compact_full().
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f1ccd2955157e1aff992f6aaaba0944209076220;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[XFS] Fix extent list corruption in xfs_iext_irec_compact_full().

If we don't move all the records from the next buffer into the current
buffer then we need to update the er_extoff field of the next buffer as we
shift the remaining records to the start of the buffer.

SGI-PV: 987159

SGI-Modid: xfs-linux-melb:xfs-kern:32165a

Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Russell Cattelan <cattelan@thebarn.com>
---

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 00e80df9dd9..419cfc2eacb 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -4584,6 +4584,7 @@ xfs_iext_irec_compact_full(
 					(XFS_LINEAR_EXTS -
 						erp_next->er_extcount) *
 					sizeof(xfs_bmbt_rec_t));
+				erp_next->er_extoff += ext_diff;
 			}
 		}