diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-02-15 18:29:16 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-03-13 11:34:50 -0400 |
| commit | 42a5bd5b48744cfef346902fd59f930596ec0b58 (patch) | |
| tree | d92f7315f955bad8702e2102bd3be590a7a40e7b | |
| parent | 4b2231e9b8385e8fb92d64c25f84b234991cf592 (diff) | |
six locks: Simplify six_lock_counts()
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | kernel/locking/six.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/kernel/locking/six.c b/kernel/locking/six.c index 41337a7faeb9..5a6eadc0e840 100644 --- a/kernel/locking/six.c +++ b/kernel/locking/six.c @@ -833,19 +833,12 @@ struct six_lock_count six_lock_counts(struct six_lock *lock) { struct six_lock_count ret; - ret.n[SIX_LOCK_read] = 0; + ret.n[SIX_LOCK_read] = !lock->readers + ? lock->state.read_lock + : pcpu_read_count(lock); ret.n[SIX_LOCK_intent] = lock->state.intent_lock + lock->intent_lock_recurse; ret.n[SIX_LOCK_write] = lock->state.seq & 1; - if (!lock->readers) - ret.n[SIX_LOCK_read] += lock->state.read_lock; - else { - int cpu; - - for_each_possible_cpu(cpu) - ret.n[SIX_LOCK_read] += *per_cpu_ptr(lock->readers, cpu); - } - return ret; } EXPORT_SYMBOL_GPL(six_lock_counts); |