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authorLinus Torvalds <torvalds@g5.osdl.org>2006-05-08 17:41:05 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-05-08 17:41:05 -0700
commite515f048c46e457ef61ce9c8b56bd36e825a48a0 (patch)
treefc1598f464fa4933c3245619b7a7bbb69fe4649e
parent601e7f024edbea8018de34c83a7398623214e636 (diff)
parente63a3690013a475746ad2cea998ebb534d825704 (diff)
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Merge git://oss.sgi.com:8090/xfs-2.6
* git://oss.sgi.com:8090/xfs-2.6: [XFS] Fix a possible metadata buffer (AGFL) refcount leak when fixing an [XFS] Fix a project quota space accounting leak on rename. [XFS] Fix a possible forced shutdown due to mishandling write barriers
-rw-r--r--fs/xfs/xfs_alloc.c5
-rw-r--r--fs/xfs/xfs_rename.c12
-rw-r--r--fs/xfs/xfs_vfsops.c27
-rw-r--r--fs/xfs/xfs_vnodeops.c2
4 files changed, 26 insertions, 20 deletions
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 64ee07db0d5..8558226281c 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -1942,8 +1942,10 @@ xfs_alloc_fix_freelist(
/*
* Allocate as many blocks as possible at once.
*/
- if ((error = xfs_alloc_ag_vextent(&targs)))
+ if ((error = xfs_alloc_ag_vextent(&targs))) {
+ xfs_trans_brelse(tp, agflbp);
return error;
+ }
/*
* Stop if we run out. Won't happen if callers are obeying
* the restrictions correctly. Can happen for free calls
@@ -1960,6 +1962,7 @@ xfs_alloc_fix_freelist(
return error;
}
}
+ xfs_trans_brelse(tp, agflbp);
args->agbp = agbp;
return 0;
}
diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c
index 81a05cfd77d..1f148762eb2 100644
--- a/fs/xfs/xfs_rename.c
+++ b/fs/xfs/xfs_rename.c
@@ -316,6 +316,18 @@ xfs_rename(
}
}
+ /*
+ * If we are using project inheritance, we only allow renames
+ * into our tree when the project IDs are the same; else the
+ * tree quota mechanism would be circumvented.
+ */
+ if (unlikely((target_dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
+ (target_dp->i_d.di_projid != src_ip->i_d.di_projid))) {
+ error = XFS_ERROR(EXDEV);
+ xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
+ goto rele_return;
+ }
+
new_parent = (src_dp != target_dp);
src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index f0e09ca1413..36ea1b2094f 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -669,31 +669,22 @@ xfs_mntupdate(
xfs_mount_t *mp = XFS_BHVTOM(bdp);
int error;
- if (args->flags & XFSMNT_BARRIER)
- mp->m_flags |= XFS_MOUNT_BARRIER;
- else
- mp->m_flags &= ~XFS_MOUNT_BARRIER;
-
- if ((vfsp->vfs_flag & VFS_RDONLY) &&
- !(*flags & MS_RDONLY)) {
- vfsp->vfs_flag &= ~VFS_RDONLY;
-
- if (args->flags & XFSMNT_BARRIER)
+ if (!(*flags & MS_RDONLY)) { /* rw/ro -> rw */
+ if (vfsp->vfs_flag & VFS_RDONLY)
+ vfsp->vfs_flag &= ~VFS_RDONLY;
+ if (args->flags & XFSMNT_BARRIER) {
+ mp->m_flags |= XFS_MOUNT_BARRIER;
xfs_mountfs_check_barriers(mp);
- }
-
- if (!(vfsp->vfs_flag & VFS_RDONLY) &&
- (*flags & MS_RDONLY)) {
+ } else {
+ mp->m_flags &= ~XFS_MOUNT_BARRIER;
+ }
+ } else if (!(vfsp->vfs_flag & VFS_RDONLY)) { /* rw -> ro */
VFS_SYNC(vfsp, SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR, NULL, error);
-
xfs_quiesce_fs(mp);
-
- /* Ok now write out an unmount record */
xfs_log_unmount_write(mp);
xfs_unmountfs_writesb(mp);
vfsp->vfs_flag |= VFS_RDONLY;
}
-
return 0;
}
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index fa71b305ba5..7027ae68ee3 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -2663,7 +2663,7 @@ xfs_link(
*/
if (unlikely((tdp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
(tdp->i_d.di_projid != sip->i_d.di_projid))) {
- error = XFS_ERROR(EPERM);
+ error = XFS_ERROR(EXDEV);
goto error_return;
}