btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter

Previous patch made sure that btrfs_setxattr_trans() is called only when
transaction NULL.  Clean up btrfs_setxattr_trans() and drop the
parameter.
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/acl.c

@@ -96,7 +96,7 @@ static int __btrfs_set_acl(struct btrfs_trans_handle *trans,
 	if (trans)
 		ret = btrfs_setxattr(trans, inode, name, value, size, 0);
 	else
-		ret = btrfs_setxattr_trans(NULL, inode, name, value, size, 0);
+		ret = btrfs_setxattr_trans(inode, name, value, size, 0);
 
 out:
 	kfree(value);

fs/btrfs/props.c

@@ -74,9 +74,8 @@ static int btrfs_set_prop(struct btrfs_trans_handle *trans, struct inode *inode,
 			ret = btrfs_setxattr(trans, inode, handler->xattr_name,
 					     NULL, 0, flags);
 		else
-			ret = btrfs_setxattr_trans(NULL, inode,
-						   handler->xattr_name, NULL, 0,
-						   flags);
+			ret = btrfs_setxattr_trans(inode, handler->xattr_name,
+						   NULL, 0, flags);
 		if (ret)
 			return ret;
 
@@ -93,8 +92,8 @@ static int btrfs_set_prop(struct btrfs_trans_handle *trans, struct inode *inode,
 		ret = btrfs_setxattr(trans, inode, handler->xattr_name, value,
 				     value_len, flags);
 	else
-		ret = btrfs_setxattr_trans(NULL, inode, handler->xattr_name,
-					   value, value_len, flags);
+		ret = btrfs_setxattr_trans(inode, handler->xattr_name, value,
+					   value_len, flags);
 
 	if (ret)
 		return ret;
@@ -104,8 +103,8 @@ static int btrfs_set_prop(struct btrfs_trans_handle *trans, struct inode *inode,
 			btrfs_setxattr(trans, inode, handler->xattr_name, NULL,
 				       0, flags);
 		else
-			btrfs_setxattr_trans(NULL, inode, handler->xattr_name,
-					     NULL, 0, flags);
+			btrfs_setxattr_trans(inode, handler->xattr_name, NULL,
+					     0, flags);
 		return ret;
 	}
 

fs/btrfs/xattr.c

@@ -221,16 +221,13 @@ int btrfs_setxattr(struct btrfs_trans_handle *trans, struct inode *inode,
 /*
  * @value: "" makes the attribute to empty, NULL removes it
  */
-int btrfs_setxattr_trans(struct btrfs_trans_handle *trans,
-			 struct inode *inode, const char *name,
+int btrfs_setxattr_trans(struct inode *inode, const char *name,
 			 const void *value, size_t size, int flags)
 {
 	struct btrfs_root *root = BTRFS_I(inode)->root;
+	struct btrfs_trans_handle *trans;
 	int ret;
 
-	if (trans)
-		return btrfs_setxattr(trans, inode, name, value, size, flags);
-
 	trans = btrfs_start_transaction(root, 2);
 	if (IS_ERR(trans))
 		return PTR_ERR(trans);
@@ -368,7 +365,7 @@ static int btrfs_xattr_handler_set(const struct xattr_handler *handler,
 				   size_t size, int flags)
 {
 	name = xattr_full_name(handler, name);
-	return btrfs_setxattr_trans(NULL, inode, name, buffer, size, flags);
+	return btrfs_setxattr_trans(inode, name, buffer, size, flags);
 }
 
 static int btrfs_xattr_handler_set_prop(const struct xattr_handler *handler,

fs/btrfs/xattr.h

@@ -14,8 +14,7 @@ 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,
+int btrfs_setxattr_trans(struct inode *inode, const char *name,
 			 const void *value, size_t size, int flags);
 ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size);