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| author | Arkadiusz Mi?kiewicz <arekm@maven.pl> | 2010-08-26 10:19:43 +0000 |
|---|---|---|
| committer | Alex Elder <aelder@sgi.com> | 2010-09-02 10:29:08 -0500 |
| commit | 23963e54ce187ca6e907c83176c15508b0f6e60d (patch) | |
| tree | 9cac313a1dce67874c9711061ff10f82ccb7c4d0 /fs | |
| parent | 2bfc96a127bc1cc94d26bfaa40159966064f9c8c (diff) | |
| download | linux-stable-23963e54ce187ca6e907c83176c15508b0f6e60d.tar.gz linux-stable-23963e54ce187ca6e907c83176c15508b0f6e60d.tar.bz2 linux-stable-23963e54ce187ca6e907c83176c15508b0f6e60d.zip | |
xfs: Disallow 32bit project quota id
Currently on-disk structure is able to keep only 16bit project quota
id, so disallow 32bit ones. This fixes a problem where parts of
kernel structures holding project quota id are 32bit while parts
(on-disk) are 16bit variables which causes project quota member
files to be inaccessible for some operations (like mv/rm).
Signed-off-by: Arkadiusz Mi?kiewicz <arekm@maven.pl>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index 237f5ffb2ee8..4fec427b83ef 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -907,6 +907,13 @@ xfs_ioctl_setattr( return XFS_ERROR(EIO); /* + * Disallow 32bit project ids because on-disk structure + * is 16bit only. + */ + if ((mask & FSX_PROJID) && (fa->fsx_projid > (__uint16_t)-1)) + return XFS_ERROR(EINVAL); + + /* * If disk quotas is on, we make sure that the dquots do exist on disk, * before we start any other transactions. Trying to do this later * is messy. We don't care to take a readlock to look at the ids |