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| author | Peter Zijlstra <peterz@infradead.org> | 2023-05-26 13:23:48 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-06-26 12:14:18 +0300 |
| commit | 54da6a0924311c7cf5015533991e44fb8eb12773 (patch) | |
| tree | af497256995d40431b9c214e7faa45639bf3d991 /include/linux/irqflags.h | |
| parent | 9a1f37ebcfe061721564042254719dc8fd5c9fa0 (diff) | |
| download | linux-54da6a0924311c7cf5015533991e44fb8eb12773.tar.xz | |
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/irqflags.h')
| -rw-r--r-- | include/linux/irqflags.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h index 5ec0fa71399e..2b665c32f5fe 100644 --- a/include/linux/irqflags.h +++ b/include/linux/irqflags.h @@ -13,6 +13,7 @@ #define _LINUX_TRACE_IRQFLAGS_H #include <linux/typecheck.h> +#include <linux/cleanup.h> #include <asm/irqflags.h> #include <asm/percpu.h> @@ -267,4 +268,10 @@ extern void warn_bogus_irq_restore(void); #define irqs_disabled_flags(flags) raw_irqs_disabled_flags(flags) +DEFINE_LOCK_GUARD_0(irq, local_irq_disable(), local_irq_enable()) +DEFINE_LOCK_GUARD_0(irqsave, + local_irq_save(_T->flags), + local_irq_restore(_T->flags), + unsigned long flags) + #endif |