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 /include/linux/spinlock_types.h | |
| parent | locking/rtmutex: Add adaptive spinwait mechanism (diff) | |
| download | linux-dev-31552385f8e9d0869117014bf8e55ba0497e3ec8.tar.xz linux-dev-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 'include/linux/spinlock_types.h')
| -rw-r--r-- | include/linux/spinlock_types.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/spinlock_types.h b/include/linux/spinlock_types.h index 8a9aadbaf293..2dfa35ffec76 100644 --- a/include/linux/spinlock_types.h +++ b/include/linux/spinlock_types.h @@ -60,6 +60,12 @@ typedef struct spinlock { SPIN_DEP_MAP_INIT(name) \ } +#define __LOCAL_SPIN_LOCK_UNLOCKED(name) \ + { \ + .lock = __RT_MUTEX_BASE_INITIALIZER(name.lock), \ + LOCAL_SPIN_DEP_MAP_INIT(name) \ + } + #define DEFINE_SPINLOCK(name) \ spinlock_t name = __SPIN_LOCK_UNLOCKED(name) |