Commit 2771261e authored by Jeff Layton's avatar Jeff Layton Committed by Al Viro

vfs: have chroot retry once on ESTALE error

Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 0291c0a5
......@@ -445,8 +445,9 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename)
{
struct path path;
int error;
error = user_path_dir(filename, &path);
unsigned int lookup_flags = LOOKUP_FOLLOW | LOOKUP_DIRECTORY;
retry:
error = user_path_at(AT_FDCWD, filename, lookup_flags, &path);
if (error)
goto out;
......@@ -465,6 +466,10 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename)
error = 0;
dput_and_out:
path_put(&path);
if (retry_estale(error, lookup_flags)) {
lookup_flags |= LOOKUP_REVAL;
goto retry;
}
out:
return error;
}
......
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