diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-02-02 07:10:03 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-02-02 07:10:06 +0100 |
| commit | 8104a4775ad8a7863af0b898224b15aa708582db (patch) | |
| tree | 71380e4db36e9d91e521d0a98be74981e32a6700 /fs/xfs/linux-2.6/xfs_ioctl.c | |
| parent | f6bbc1daac964da551130dbf01809d3fbd178b2d (diff) | |
| parent | ebf53826e105f488f4f628703a108e98940d1dc5 (diff) | |
Merge commit 'v2.6.38-rc3' into perf/core
Merge reason: Pick up latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl.c')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index b06ede1d0be..f5e2a19e0f8 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -985,10 +985,22 @@ xfs_ioctl_setattr( /* * Extent size must be a multiple of the appropriate block - * size, if set at all. + * size, if set at all. It must also be smaller than the + * maximum extent size supported by the filesystem. + * + * Also, for non-realtime files, limit the extent size hint to + * half the size of the AGs in the filesystem so alignment + * doesn't result in extents larger than an AG. */ if (fa->fsx_extsize != 0) { - xfs_extlen_t size; + xfs_extlen_t size; + xfs_fsblock_t extsize_fsb; + + extsize_fsb = XFS_B_TO_FSB(mp, fa->fsx_extsize); + if (extsize_fsb > MAXEXTLEN) { + code = XFS_ERROR(EINVAL); + goto error_return; + } if (XFS_IS_REALTIME_INODE(ip) || ((mask & FSX_XFLAGS) && @@ -997,6 +1009,10 @@ xfs_ioctl_setattr( mp->m_sb.sb_blocklog; } else { size = mp->m_sb.sb_blocksize; + if (extsize_fsb > mp->m_sb.sb_agblocks / 2) { + code = XFS_ERROR(EINVAL); + goto error_return; + } } if (fa->fsx_extsize % size) { |