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author | Thomas Gleixner <tglx@linutronix.de> | 2011-06-28 18:42:16 (GMT) |
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committer | Scott Wood <scottwood@freescale.com> | 2014-04-10 00:19:22 (GMT) |
commit | c3429f72c9ea824c08763c389bacf245f1c74452 (patch) | |
tree | 7cce52aee6a8775e8c408246ca69773790c02f81 /include/linux | |
parent | 07ffc758f648ade41f1ca85bcb7708d9c91bce53 (diff) | |
download | linux-fsl-qoriq-c3429f72c9ea824c08763c389bacf245f1c74452.tar.xz |
local-vars-migrate-disable.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/percpu.h | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index d273604..f05adf5 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -48,10 +48,30 @@ preempt_enable(); \ } while (0) -#define get_local_var(var) get_cpu_var(var) -#define put_local_var(var) put_cpu_var(var) -#define get_local_ptr(var) get_cpu_ptr(var) -#define put_local_ptr(var) put_cpu_ptr(var) +#ifndef CONFIG_PREEMPT_RT_FULL +# define get_local_var(var) get_cpu_var(var) +# define put_local_var(var) put_cpu_var(var) +# define get_local_ptr(var) get_cpu_ptr(var) +# define put_local_ptr(var) put_cpu_ptr(var) +#else +# define get_local_var(var) (*({ \ + migrate_disable(); \ + &__get_cpu_var(var); })) + +# define put_local_var(var) do { \ + (void)&(var); \ + migrate_enable(); \ +} while (0) + +# define get_local_ptr(var) ({ \ + migrate_disable(); \ + this_cpu_ptr(var); }) + +# define put_local_ptr(var) do { \ + (void)(var); \ + migrate_enable(); \ +} while (0) +#endif /* minimum unit size, also is the maximum supported allocation size */ #define PCPU_MIN_UNIT_SIZE PFN_ALIGN(32 << 10) |