fs/hfsplus: atomically set inode->i_flags

According to commit 5f16f322 ("ext4: atomically set inode->i_flags in
ext4_set_inode_flags()").
Signed-off-by: NFabian Frederick <fabf@skynet.be>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/hfsplus/ioctl.c

@@ -76,7 +76,7 @@ static int hfsplus_ioctl_setflags(struct file *file, int __user *user_flags)
 {
 	struct inode *inode = file_inode(file);
 	struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
-	unsigned int flags;
+	unsigned int flags, new_fl = 0;
 	int err = 0;
 
 	err = mnt_want_write_file(file);
@@ -110,14 +110,12 @@ static int hfsplus_ioctl_setflags(struct file *file, int __user *user_flags)
 	}
 
 	if (flags & FS_IMMUTABLE_FL)
-		inode->i_flags |= S_IMMUTABLE;
-	else
-		inode->i_flags &= ~S_IMMUTABLE;
+		new_fl |= S_IMMUTABLE;
 
 	if (flags & FS_APPEND_FL)
-		inode->i_flags |= S_APPEND;
-	else
-		inode->i_flags &= ~S_APPEND;
+		new_fl |= S_APPEND;
+
+	inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND);
 
 	if (flags & FS_NODUMP_FL)
 		hip->userflags |= HFSPLUS_FLG_NODUMP;