[XFS] Fix a project quota space accounting leak on rename.

SGI-PV: 951636 SGI-Modid: xfs-linux-melb:xfs-kern:25811a Signed-off-by: Nathan Scott <nathans@sgi.com>
xtu2016551324 · May 8, 2006 · b1ecdda · b1ecdda
1 parent d08d389
commit b1ecdda
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git 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_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;
 	}