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-rw-r--r--fs/open.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/open.c b/fs/open.c
index a13a54d3e691..99c3ce5f897b 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -514,11 +514,16 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode
{
struct path path;
int error;
-
- error = user_path_at(dfd, filename, LOOKUP_FOLLOW, &path);
+ unsigned int lookup_flags = LOOKUP_FOLLOW;
+retry:
+ error = user_path_at(dfd, filename, lookup_flags, &path);
if (!error) {
error = chmod_common(&path, mode);
path_put(&path);
+ if (retry_estale(error, lookup_flags)) {
+ lookup_flags |= LOOKUP_REVAL;
+ goto retry;
+ }
}
return error;
}