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| author | Eric Sandeen <sandeen@sandeen.net> | 2010-02-05 22:59:53 +0000 |
|---|---|---|
| committer | Alex Elder <aelder@sgi.com> | 2010-02-08 17:41:48 -0600 |
| commit | d5db0f97fbbeff11c88dec1aaf1536a975afbaeb (patch) | |
| tree | 3e81db2cb8c5004f3c30ccaa35e54fbf1549897f /fs/xfs/linux-2.6/xfs_ioctl.c | |
| parent | 388f1f0c346b533b06d8bc792f7204ebc3e4b7da (diff) | |
| download | kernel_samsung_tuna-d5db0f97fbbeff11c88dec1aaf1536a975afbaeb.zip kernel_samsung_tuna-d5db0f97fbbeff11c88dec1aaf1536a975afbaeb.tar.gz kernel_samsung_tuna-d5db0f97fbbeff11c88dec1aaf1536a975afbaeb.tar.bz2 | |
xfs: more reserved blocks fixups
This mangles the reserved blocks counts a little more.
1) add a helper function for the default reserved count
2) add helper functions to save/restore counts on ro/rw
3) save/restore reserved blocks on freeze/thaw
4) disallow changing reserved count while readonly
V2: changed field name to match Dave's changes
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl.c')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index 3906e85..4ea1ee1 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -1431,6 +1431,9 @@ xfs_file_ioctl( if (!capable(CAP_SYS_ADMIN)) return -EPERM; + if (mp->m_flags & XFS_MOUNT_RDONLY) + return -XFS_ERROR(EROFS); + if (copy_from_user(&inout, arg, sizeof(inout))) return -XFS_ERROR(EFAULT); |