diff options
| author | Xiu Jianfeng <[email protected]> | 2021-12-13 13:26:18 +0000 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2022-01-25 21:30:27 +0000 |
| commit | e204193b138af347fbbbe026e68cb3385112f387 (patch) | |
| tree | c1b1dd372638dbadfe90dc62cb5e2069d4613d3d | |
| parent | MAINTAINERS: add myself as reviewer for atomics (diff) | |
| download | kernel-e204193b138af347fbbbe026e68cb3385112f387.tar.gz kernel-e204193b138af347fbbbe026e68cb3385112f387.zip | |
lockdep: Use memset_startat() helper in reinit_class()
use memset_startat() helper to simplify the code, there is no functional
change in this patch.
Signed-off-by: Xiu Jianfeng <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
| -rw-r--r-- | kernel/locking/lockdep.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 4a882f83aeb9..89b3df51fd98 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -6011,13 +6011,10 @@ static void zap_class(struct pending_free *pf, struct lock_class *class) static void reinit_class(struct lock_class *class) { - void *const p = class; - const unsigned int offset = offsetof(struct lock_class, key); - WARN_ON_ONCE(!class->lock_entry.next); WARN_ON_ONCE(!list_empty(&class->locks_after)); WARN_ON_ONCE(!list_empty(&class->locks_before)); - memset(p + offset, 0, sizeof(*class) - offset); + memset_startat(class, 0, key); WARN_ON_ONCE(!class->lock_entry.next); WARN_ON_ONCE(!list_empty(&class->locks_after)); WARN_ON_ONCE(!list_empty(&class->locks_before)); |