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LinuxKPI: lockdep add lockdep_assert_not_held()

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Add lockdep_assert_not_held() asserting LA_UNLOCKED as needed by a
driver.

MFC after:	3 days
Reviewed by:	hselasky
Differential Revision: https://reviews.freebsd.org/D34232
This commit is contained in:
Bjoern A. Zeeb 2022-02-09 12:01:32 +00:00
parent 0f5e9425e7
commit 064c110f4b
1 changed files with 6 additions and 0 deletions
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6
sys/compat/linuxkpi/common/include/linux/lockdep.h
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@ -50,6 +50,11 @@ struct pin_cookie {
#define lockdep_init_map(_map, _name, _key, _x) do { } while(0)
#ifdef INVARIANTS
#define lockdep_assert_not_held(m) do { \
struct lock_object *__lock = (struct lock_object *)(m); \
LOCK_CLASS(__lock)->lc_assert(__lock, LA_UNLOCKED); \
} while (0)
#define lockdep_assert_held(m) do { \
struct lock_object *__lock = (struct lock_object *)(m); \
LOCK_CLASS(__lock)->lc_assert(__lock, LA_LOCKED); \
@ -72,6 +77,7 @@ lockdep_is_held(void *__m)
#define lockdep_is_held_type(_m, _t) lockdep_is_held(_m)
#else
#define lockdep_assert_not_held(m) do { (void)(m); } while (0)
#define lockdep_assert_held(m) do { (void)(m); } while (0)
#define lockdep_assert_held_once(m) do { (void)(m); } while (0)