diff options
| -rw-r--r-- | security/apparmor/include/path.h | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/security/apparmor/include/path.h b/security/apparmor/include/path.h index e042b994f2b8..b6380c5f0097 100644 --- a/security/apparmor/include/path.h +++ b/security/apparmor/include/path.h @@ -43,10 +43,11 @@ struct aa_buffers { DECLARE_PER_CPU(struct aa_buffers, aa_buffers); -#define ASSIGN(FN, X, N) ((X) = FN(N)) -#define EVAL1(FN, X) ASSIGN(FN, X, 0) /*X = FN(0)*/ -#define EVAL2(FN, X, Y...) do { ASSIGN(FN, X, 1); EVAL1(FN, Y); } while (0) -#define EVAL(FN, X...) CONCATENATE(EVAL, COUNT_ARGS(X))(FN, X) +#define ASSIGN(FN, A, X, N) ((X) = FN(A, N)) +#define EVAL1(FN, A, X) ASSIGN(FN, A, X, 0) /*X = FN(0)*/ +#define EVAL2(FN, A, X, Y...) \ + do { ASSIGN(FN, A, X, 1); EVAL1(FN, A, Y); } while (0) +#define EVAL(FN, A, X...) CONCATENATE(EVAL, COUNT_ARGS(X))(FN, A, X) #define for_each_cpu_buffer(I) for ((I) = 0; (I) < MAX_PATH_BUFFERS; (I)++) @@ -56,26 +57,24 @@ DECLARE_PER_CPU(struct aa_buffers, aa_buffers); #define AA_BUG_PREEMPT_ENABLED(X) /* nop */ #endif -#define __get_buffer(N) ({ \ - struct aa_buffers *__cpu_var; \ +#define __get_buffer(C, N) ({ \ AA_BUG_PREEMPT_ENABLED("__get_buffer without preempt disabled"); \ - __cpu_var = this_cpu_ptr(&aa_buffers); \ - __cpu_var->buf[(N)]; }) + (C)->buf[(N)]; }) -#define __get_buffers(X...) EVAL(__get_buffer, X) +#define __get_buffers(C, X...) EVAL(__get_buffer, C, X) #define __put_buffers(X, Y...) ((void)&(X)) -#define get_buffers(X...) \ -do { \ - preempt_disable(); \ - __get_buffers(X); \ +#define get_buffers(X...) \ +do { \ + struct aa_buffers *__cpu_var = get_cpu_ptr(&aa_buffers); \ + __get_buffers(__cpu_var, X); \ } while (0) -#define put_buffers(X, Y...) \ -do { \ - __put_buffers(X, Y); \ - preempt_enable(); \ +#define put_buffers(X, Y...) \ +do { \ + __put_buffers(X, Y); \ + put_cpu_ptr(&aa_buffers); \ } while (0) #endif /* __AA_PATH_H */ |