fs: __file_remove_privs(): restore call to inode_has_no_xattr()

This restores the call to inode_has_no_xattr() in the function
__file_remove_privs(). In case the dentry_meeds_remove_privs() returned
0, the function inode_has_no_xattr() was not called.

Signed-off-by: Stefan Roesch <shr@fb.com>
Fixes: faf99b563558 ("fs: add __remove_file_privs() with flags parameter")
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Link: https://lore.kernel.org/r/20220816153158.1925040-1-shr@fb.com
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>

diff --git a/fs/inode.c b/fs/inode.c
index 6462276..ba1de23 100644 (file)
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -2018,23 +2018,25 @@ static int __file_remove_privs(struct file *file, unsigned int flags)
 {
        struct dentry *dentry = file_dentry(file);
        struct inode *inode = file_inode(file);
-       int error;
+       int error = 0;
        int kill;
 
        if (IS_NOSEC(inode) || !S_ISREG(inode->i_mode))
                return 0;
 
        kill = dentry_needs_remove_privs(dentry);
-       if (kill <= 0)
+       if (kill < 0)
                return kill;
 
-       if (flags & IOCB_NOWAIT)
-               return -EAGAIN;
+       if (kill) {
+               if (flags & IOCB_NOWAIT)
+                       return -EAGAIN;
+
+               error = __remove_privs(file_mnt_user_ns(file), dentry, kill);
+       }
 
-       error = __remove_privs(file_mnt_user_ns(file), dentry, kill);
        if (!error)
                inode_has_no_xattr(inode);
-
        return error;
 }