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| author | Tejun Heo <tj@kernel.org> | 2011-02-21 11:43:56 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-02-21 11:43:56 +0300 |
| commit | 43d133c18b44e7d82d82ef0dcc2bddd55d5dfe81 (patch) | |
| tree | 8de75c837b55874cc8a81a29bdedbc62668d4481 /fs/xfs/linux-2.6 | |
| parent | 4149efb22da66e326fc48baf80d628834509f7f0 (diff) | |
| parent | 6f576d57f1fa0d6026b495d8746d56d949989161 (diff) | |
| download | linux-43d133c18b44e7d82d82ef0dcc2bddd55d5dfe81.tar.xz | |
Merge branch 'master' into for-2.6.39
Diffstat (limited to 'fs/xfs/linux-2.6')
| -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 b06ede1d0bed..f5e2a19e0f8e 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) { |