Messages in this thread |  | | Subject | Re: [PATCH 15/16] apparmor: Replace spin_is_locked() with lockdep | From | John Johansen <> | Date | Tue, 2 Oct 2018 22:56:06 -0700 |
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On 10/02/2018 10:39 PM, Lance Roy wrote: > lockdep_assert_held() is better suited to checking locking requirements, > since it won't get confused when someone else holds the lock. This is > also a step towards possibly removing spin_is_locked(). > > Signed-off-by: Lance Roy <ldr709@gmail.com> > Cc: John Johansen <john.johansen@canonical.com> > Cc: James Morris <jmorris@namei.org> > Cc: "Serge E. Hallyn" <serge@hallyn.com> > Cc: <linux-security-module@vger.kernel.org>
Acked-by: John Johansen <john.johansen@canonical.com>
> --- > security/apparmor/file.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/security/apparmor/file.c b/security/apparmor/file.c > index 4285943f7260..d0afed9ebd0e 100644 > --- a/security/apparmor/file.c > +++ b/security/apparmor/file.c > @@ -496,7 +496,7 @@ static void update_file_ctx(struct aa_file_ctx *fctx, struct aa_label *label, > /* update caching of label on file_ctx */ > spin_lock(&fctx->lock); > old = rcu_dereference_protected(fctx->label, > - spin_is_locked(&fctx->lock)); > + lockdep_is_held(&fctx->lock)); > l = aa_label_merge(old, label, GFP_ATOMIC); > if (l) { > if (l != old) { >
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