btrfs: export btrfs_setxattr

Preparatory patch, as we are going split the calls with and without
transaction to use the respective btrfs_setxattr() and
btrfs_setxattr_trans() functions. Export btrfs_setxattr() for calls
outside of xattr.c.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/xattr.c

@@ -76,9 +76,8 @@ int btrfs_getxattr(struct inode *inode, const char *name,
 	return ret;
 }
 
-static int btrfs_setxattr(struct btrfs_trans_handle *trans,
-			  struct inode *inode, const char *name,
-			  const void *value, size_t size, int flags)
+int btrfs_setxattr(struct btrfs_trans_handle *trans, struct inode *inode,
+		   const char *name, const void *value, size_t size, int flags)
 {
 	struct btrfs_dir_item *di = NULL;
 	struct btrfs_root *root = BTRFS_I(inode)->root;

fs/btrfs/xattr.h

@@ -12,6 +12,8 @@ extern const struct xattr_handler *btrfs_xattr_handlers[];
 
 int btrfs_getxattr(struct inode *inode, const char *name,
 		void *buffer, size_t size);
+int btrfs_setxattr(struct btrfs_trans_handle *trans, struct inode *inode,
+		   const char *name, const void *value, size_t size, int flags);
 int btrfs_setxattr_trans(struct btrfs_trans_handle *trans,
 			    struct inode *inode, const char *name,
 			    const void *value, size_t size, int flags);