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apparmor: add macro for bug asserts to check that a lock is held 

Signed-off-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
John Johansen 2017-01-16 00:42:26 -08:00
parent 92b6d8eff5
commit 57e36bbd67
1 changed files with 11 additions and 0 deletions
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11
security/apparmor/include/lib.h
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@ -19,6 +19,17 @@
#include "match.h" #include "match.h"
/* Provide our own test for whether a write lock is held for asserts
* this is because on none SMP systems write_can_lock will always
* resolve to true, which is what you want for code making decisions
* based on it, but wrong for asserts checking that the lock is held
*/
#ifdef CONFIG_SMP
#define write_is_locked(X) !write_can_lock(X)
#else
#define write_is_locked(X) (1)
#endif /* CONFIG_SMP */
/* /*
* DEBUG remains global (no per profile flag) since it is mostly used in sysctl * DEBUG remains global (no per profile flag) since it is mostly used in sysctl
* which is not related to profile accesses. * which is not related to profile accesses.