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apparmor: Replace spin_is_locked() with lockdep 

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>
Signed-off-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
Lance Roy 2018-10-02 22:39:01 -07:00 committed by John Johansen
parent ab9f211508
commit 0fb871cc42
1 changed files with 1 additions and 1 deletions
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2
security/apparmor/file.c
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@ -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) {