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| author | James Bottomley <JBottomley@Parallels.com> | 2013-06-27 08:08:22 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-06-27 08:08:22 +0200 |
| commit | a9e94ec3504ead4b87a929bc57f5aa99a6590437 (patch) | |
| tree | b6e7aaec0e844dc066e93296a85e5769542ef525 /fs/xfs/xfs_dfrag.c | |
| parent | Merge tag 'fcoe' into fixes (diff) | |
| parent | fcoe: Use correct API to set vlan tag for FCoE Ethertype skbs (diff) | |
| download | linux-a9e94ec3504ead4b87a929bc57f5aa99a6590437.tar.xz linux-a9e94ec3504ead4b87a929bc57f5aa99a6590437.zip | |
Merge tag 'fcoe1' into fixes
This patch fixes a critical bug that was introduced in 3.9
related to VLAN tagging FCoE frames.
Diffstat (limited to 'fs/xfs/xfs_dfrag.c')
| -rw-r--r-- | fs/xfs/xfs_dfrag.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c index f852b082a084..c407e1ccff43 100644 --- a/fs/xfs/xfs_dfrag.c +++ b/fs/xfs/xfs_dfrag.c @@ -219,6 +219,14 @@ xfs_swap_extents( int taforkblks = 0; __uint64_t tmp; + /* + * We have no way of updating owner information in the BMBT blocks for + * each inode on CRC enabled filesystems, so to avoid corrupting the + * this metadata we simply don't allow extent swaps to occur. + */ + if (xfs_sb_version_hascrc(&mp->m_sb)) + return XFS_ERROR(EINVAL); + tempifp = kmem_alloc(sizeof(xfs_ifork_t), KM_MAYFAIL); if (!tempifp) { error = XFS_ERROR(ENOMEM); |