diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2023-05-26 12:23:48 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-06-26 11:14:18 +0200 |
| commit | 54da6a0924311c7cf5015533991e44fb8eb12773 (patch) | |
| tree | af497256995d40431b9c214e7faa45639bf3d991 /include/linux/rcupdate.h | |
| parent | 9a1f37ebcfe061721564042254719dc8fd5c9fa0 (diff) | |
locking: Introduce __cleanup() based infrastructure
Use __attribute__((__cleanup__(func))) to build:
- simple auto-release pointers using __free()
- 'classes' with constructor and destructor semantics for
scope-based resource management.
- lock guards based on the above classes.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230612093537.614161713%40infradead.org
Diffstat (limited to 'include/linux/rcupdate.h')
| -rw-r--r-- | include/linux/rcupdate.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index dcd2cf1e8326..7aa090329ba2 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -27,6 +27,7 @@ #include <linux/preempt.h> #include <linux/bottom_half.h> #include <linux/lockdep.h> +#include <linux/cleanup.h> #include <asm/processor.h> #include <linux/cpumask.h> #include <linux/context_tracking_irq.h> @@ -1095,4 +1096,6 @@ rcu_head_after_call_rcu(struct rcu_head *rhp, rcu_callback_t f) extern int rcu_expedited; extern int rcu_normal; +DEFINE_LOCK_GUARD_0(rcu, rcu_read_lock(), rcu_read_unlock()) + #endif /* __LINUX_RCUPDATE_H */ |