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authorChris Wilson <chris@chris-wilson.co.uk>2011-02-16 09:36:05 +0000
committerChris Wilson <chris@chris-wilson.co.uk>2011-02-16 09:44:30 +0000
commit9035a97a32836d0e456ddafaaf249a844e6e4b5e (patch)
tree41ec3db083bdb46cd831f0d39db1fe294ae7d55f /fs/xfs/linux-2.6/xfs_ioctl.c
parentfe16d949b45036d9f80e20e07bde1ddacc930b10 (diff)
parent452858338aec31c1f4414bf07f31663690479869 (diff)
Merge branch 'drm-intel-fixes' into drm-intel-next
Grab the latest stabilisation bits from -fixes and some suspend and resume fixes from linus. Conflicts: drivers/gpu/drm/i915/i915_drv.h drivers/gpu/drm/i915/i915_irq.c
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.c20
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) {