xattr support for btrfs

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
new file mode 100644
index 000000000000..aee9f0657c35
--- /dev/null
+++ b/fs/btrfs/acl.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2007 Red Hat.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/xattr.h>
+#include <linux/posix_acl_xattr.h>
+#include "ctree.h"
+#include "xattr.h"
+
+static int btrfs_xattr_acl_access_get(struct inode *inode, const char *name,
+                                      void *value, size_t size)
+{
+        return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name,
+                               value, size);
+}
+
+static int btrfs_xattr_acl_access_set(struct inode *inode, const char *name,
+                                      const void *value, size_t size, int flags)
+{
+        return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name,
+                               value, size, flags);
+}
+
+static int btrfs_xattr_acl_default_get(struct inode *inode, const char *name,
+                                       void *value, size_t size)
+{
+        return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT,
+                               name, value, size);
+}
+
+static int btrfs_xattr_acl_default_set(struct inode *inode, const char *name,
+                                       const void *value, size_t size, int flags)
+{
+        return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT,
+                               name, value, size, flags);
+}
+
+struct xattr_handler btrfs_xattr_acl_default_handler = {
+        .prefix = POSIX_ACL_XATTR_DEFAULT,
+        .list   = btrfs_xattr_generic_list,
+        .get    = btrfs_xattr_acl_default_get,
+        .set    = btrfs_xattr_acl_default_set,
+};
+
+struct xattr_handler btrfs_xattr_acl_access_handler = {
+        .prefix = POSIX_ACL_XATTR_ACCESS,
+        .list   = btrfs_xattr_generic_list,
+        .get    = btrfs_xattr_acl_access_get,
+        .set    = btrfs_xattr_acl_access_set,
+};