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| author |   Nathan Scott <nscott@aconex.com> | 2007-05-14 18:24:02 +1000 |
|---|---|---|
| committer |   Tim Shimmin <tes@chook.melbourne.sgi.com> | 2007-07-14 15:21:29 +1000 |
| commit | 4cc929ee305c69573cb842aade059dbe2a93940c (patch) | |
| tree | bf6cee68d7ca81296864576f27e68900e122d04f /fs/xfs/xfs_fsops.c | |
| parent | [XFS] Only use refcounted pages for I/O (diff) | |
| download | linux-dev-4cc929ee305c69573cb842aade059dbe2a93940c.tar.xz linux-dev-4cc929ee305c69573cb842aade059dbe2a93940c.zip | |
[XFS] Don't grow filesystems past the size they can index.
When growing a filesystem we don't check to see if the new size overflows
the page cache index range, so we can do silly things like grow a
filesystem page 16TB on a 32bit. Check new filesystem sizes against the
limits the kernel can support.
SGI-PV: 957886
SGI-Modid: xfs-linux-melb:xfs-kern:28563a
Signed-Off-By: Nathan Scott <nscott@aconex.com>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_fsops.c')
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index b599e6be9ec1..25e5eae8a976 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -140,6 +140,8 @@ xfs_growfs_data_private( pct = in->imaxpct; if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100) return XFS_ERROR(EINVAL); + if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb))) + return error; dpct = pct - mp->m_sb.sb_imax_pct; error = xfs_read_buf(mp, mp->m_ddev_targp, XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1), |