fs/ntfs3: Pass flags to ntfs_set_ea in ntfs_set_acl_ex

In case of removing of xattr there must be XATTR_REPLACE flag and
zero length. We already check XATTR_REPLACE in ntfs_set_ea, so
now we pass XATTR_REPLACE to ntfs_set_ea.

Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index 3795943..70f2f9e 100644 (file)
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -549,6 +549,7 @@ static noinline int ntfs_set_acl_ex(struct user_namespace *mnt_userns,
        size_t size, name_len;
        void *value = NULL;
        int err = 0;
+       int flags;
 
        if (S_ISLNK(inode->i_mode))
                return -EOPNOTSUPP;
@@ -591,20 +592,24 @@ static noinline int ntfs_set_acl_ex(struct user_namespace *mnt_userns,
        }
 
        if (!acl) {
+               /* Remove xattr if it can be presented via mode. */
                size = 0;
                value = NULL;
+               flags = XATTR_REPLACE;
        } else {
                size = posix_acl_xattr_size(acl->a_count);
                value = kmalloc(size, GFP_NOFS);
                if (!value)
                        return -ENOMEM;
-
                err = posix_acl_to_xattr(mnt_userns, acl, value, size);
                if (err < 0)
                        goto out;
+               flags = 0;
        }
 
-       err = ntfs_set_ea(inode, name, name_len, value, size, 0, locked);
+       err = ntfs_set_ea(inode, name, name_len, value, size, flags, locked);
+       if (err == -ENODATA && !size)
+               err = 0; /* Removing non existed xattr. */
        if (!err)
                set_cached_acl(inode, type, acl);