diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-08-15 23:29:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-08-17 19:06:13 +0200 |
| commit | 31552385f8e9d0869117014bf8e55ba0497e3ec8 (patch) | |
| tree | 2aac2ec3e333bc60166b13f039923d981f584d70 /kernel/locking | |
| parent | locking/rtmutex: Add adaptive spinwait mechanism (diff) | |
| download | linux-31552385f8e9d0869117014bf8e55ba0497e3ec8.tar.xz linux-31552385f8e9d0869117014bf8e55ba0497e3ec8.zip | |
locking/spinlock/rt: Prepare for RT local_lock
Add the static and runtime initializer mechanics to support the RT variant
of local_lock, which requires the lock type in the lockdep map to be set
to LD_LOCK_PERCPU.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210815211305.967526724@linutronix.de
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/spinlock_rt.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/locking/spinlock_rt.c b/kernel/locking/spinlock_rt.c index c36648bd765d..d2912e44d61f 100644 --- a/kernel/locking/spinlock_rt.c +++ b/kernel/locking/spinlock_rt.c @@ -120,10 +120,13 @@ EXPORT_SYMBOL(rt_spin_trylock_bh); #ifdef CONFIG_DEBUG_LOCK_ALLOC void __rt_spin_lock_init(spinlock_t *lock, const char *name, - struct lock_class_key *key) + struct lock_class_key *key, bool percpu) { + u8 type = percpu ? LD_LOCK_PERCPU : LD_LOCK_NORMAL; + debug_check_no_locks_freed((void *)lock, sizeof(*lock)); - lockdep_init_map_wait(&lock->dep_map, name, key, 0, LD_WAIT_CONFIG); + lockdep_init_map_type(&lock->dep_map, name, key, 0, LD_WAIT_CONFIG, + LD_WAIT_INV, type); } EXPORT_SYMBOL(__rt_spin_lock_init); #endif |