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/percpu.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/percpu.h')
| -rw-r--r-- | include/linux/percpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 1338ea2aa720..d33ab1799932 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -8,6 +8,7 @@ #include <linux/cpumask.h> #include <linux/pfn.h> #include <linux/init.h> +#include <linux/cleanup.h> #include <asm/percpu.h> @@ -127,6 +128,9 @@ extern void __init setup_per_cpu_areas(void); extern void __percpu *__alloc_percpu_gfp(size_t size, size_t align, gfp_t gfp) __alloc_size(1); extern void __percpu *__alloc_percpu(size_t size, size_t align) __alloc_size(1); extern void free_percpu(void __percpu *__pdata); + +DEFINE_FREE(free_percpu, void __percpu *, free_percpu(_T)) + extern phys_addr_t per_cpu_ptr_to_phys(void *addr); #define alloc_percpu_gfp(type, gfp) \ |