Commit 0291c0a5 authored by Jeff Layton's avatar Jeff Layton Committed by Al Viro

vfs: have chdir retry lookup and call 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 87fa5595
......@@ -394,8 +394,9 @@ SYSCALL_DEFINE1(chdir, 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;
......@@ -407,6 +408,10 @@ SYSCALL_DEFINE1(chdir, const char __user *, filename)
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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