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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2012-09-17 06:46:55 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-09-26 15:45:25 +0200 |
| commit | ba6f5c2a8da8f7d6e14702d8c9b99b5767f6db49 (patch) | |
| tree | 2336181f2b44d2ab26a1ae9b9d970bcdbade16b9 /arch | |
| parent | 28634a07d3f72f2c186ad465e58f72e728c5cd4e (diff) | |
| download | linux-ba6f5c2a8da8f7d6e14702d8c9b99b5767f6db49.tar.bz2 | |
s390/percpu: implement this_cpu_add_return()
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/percpu.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h index 7adebfc0c6dc..964e7ee872f7 100644 --- a/arch/s390/include/asm/percpu.h +++ b/arch/s390/include/asm/percpu.h @@ -20,7 +20,7 @@ #endif #define arch_this_cpu_to_op(pcp, val, op) \ -do { \ +({ \ typedef typeof(pcp) pcp_op_T__; \ pcp_op_T__ old__, new__, prev__; \ pcp_op_T__ *ptr__; \ @@ -39,13 +39,19 @@ do { \ } \ } while (prev__ != old__); \ preempt_enable(); \ -} while (0) + new__; \ +}) #define this_cpu_add_1(pcp, val) arch_this_cpu_to_op(pcp, val, +) #define this_cpu_add_2(pcp, val) arch_this_cpu_to_op(pcp, val, +) #define this_cpu_add_4(pcp, val) arch_this_cpu_to_op(pcp, val, +) #define this_cpu_add_8(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_return_1(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_return_2(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_return_4(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_return_8(pcp, val) arch_this_cpu_to_op(pcp, val, +) + #define this_cpu_and_1(pcp, val) arch_this_cpu_to_op(pcp, val, &) #define this_cpu_and_2(pcp, val) arch_this_cpu_to_op(pcp, val, &) #define this_cpu_and_4(pcp, val) arch_this_cpu_to_op(pcp, val, &) |