kill boilerplate around posix_acl_chmod_masq()

new helper: posix_acl_chmod(&acl, gfp, mode).  Replaces acl with modified
clone or with NULL if that has failed; returns 0 or -ve on error.  All
callers of posix_acl_chmod_masq() switched to that - they'd been doing
exactly the same thing.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/reiserfs/xattr_acl.c

@@ -445,7 +445,10 @@ int reiserfs_cache_default_acl(struct inode *inode)
 
 int reiserfs_acl_chmod(struct inode *inode)
 {
-	struct posix_acl *acl, *clone;
+	struct reiserfs_transaction_handle th;
+	struct posix_acl *acl;
+	size_t size;
+	int depth;
 	int error;
 
 	if (S_ISLNK(inode->i_mode))
@@ -463,30 +466,22 @@ int reiserfs_acl_chmod(struct inode *inode)
 		return 0;
 	if (IS_ERR(acl))
 		return PTR_ERR(acl);
-	clone = posix_acl_clone(acl, GFP_NOFS);
-	posix_acl_release(acl);
-	if (!clone)
-		return -ENOMEM;
-	error = posix_acl_chmod_masq(clone, inode->i_mode);
-	if (!error) {
-		struct reiserfs_transaction_handle th;
-		size_t size = reiserfs_xattr_nblocks(inode,
-					     reiserfs_acl_size(clone->a_count));
-		int depth;
+	error = posix_acl_chmod(&acl, GFP_NOFS, inode->i_mode);
+	if (error)
+		return error;
 
-		depth = reiserfs_write_lock_once(inode->i_sb);
-		error = journal_begin(&th, inode->i_sb, size * 2);
-		if (!error) {
-			int error2;
-			error = reiserfs_set_acl(&th, inode, ACL_TYPE_ACCESS,
-						 clone);
-			error2 = journal_end(&th, inode->i_sb, size * 2);
-			if (error2)
-				error = error2;
-		}
-		reiserfs_write_unlock_once(inode->i_sb, depth);
+	size = reiserfs_xattr_nblocks(inode, reiserfs_acl_size(acl->a_count));
+	depth = reiserfs_write_lock_once(inode->i_sb);
+	error = journal_begin(&th, inode->i_sb, size * 2);
+	if (!error) {
+		int error2;
+		error = reiserfs_set_acl(&th, inode, ACL_TYPE_ACCESS, acl);
+		error2 = journal_end(&th, inode->i_sb, size * 2);
+		if (error2)
+			error = error2;
 	}
-	posix_acl_release(clone);
+	reiserfs_write_unlock_once(inode->i_sb, depth);
+	posix_acl_release(acl);
 	return error;
 }