getxattr: use correct xattr length

[mirror_ubuntu-bionic-kernel.git] / fs / dcache.c

diff --git a/fs/dcache.c b/fs/dcache.c
index c175fd9210cc9bf76d99f3fc6f2df3a9583ed1e2..ca3129bfe1089a7d71cded900fc04f6354d2fcaf 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2511,7 +2511,7 @@ retry:
        }
 
        hlist_bl_lock(b);
-       if (unlikely(parent->d_inode->i_dir_seq != seq)) {
+       if (unlikely(READ_ONCE(parent->d_inode->i_dir_seq) != seq)) {
                hlist_bl_unlock(b);
                rcu_read_unlock();
                goto retry;