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| author |   Nicolas Pitre <nicolas.pitre@linaro.org> | 2012-10-26 02:36:17 -0400 |
|---|---|---|
| committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2013-07-30 09:02:14 -0400 |
| commit | 71ce1deeff8f9341ae3b21983e9bdde28e8c96fe (patch) | |
| tree | b4beef1523de4e5f4fb7e6b13a553e2ed3bc9ad1 /arch/arm/include/asm/bL_switcher.h | |
| parent | ARM: bL_switcher: add clockevent save/restore support (diff) | |
| download | linux-dev-71ce1deeff8f9341ae3b21983e9bdde28e8c96fe.tar.xz linux-dev-71ce1deeff8f9341ae3b21983e9bdde28e8c96fe.zip | |
ARM: bL_switcher: move to dedicated threads rather than workqueues
The workqueues are problematic as they may be contended.
They can't be scheduled with top priority either. Also the optimization
in bL_switch_request() to skip the workqueue entirely when the target CPU
and the calling CPU were the same didn't allow for bL_switch_request() to
be called from atomic context, as might be the case for some cpufreq
drivers.
Let's move to dedicated kthreads instead.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Diffstat (limited to 'arch/arm/include/asm/bL_switcher.h')
| -rw-r--r-- | arch/arm/include/asm/bL_switcher.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h index 72efe3f349b9..e0c0bba70bbf 100644 --- a/arch/arm/include/asm/bL_switcher.h +++ b/arch/arm/include/asm/bL_switcher.h @@ -12,6 +12,6 @@ #ifndef ASM_BL_SWITCHER_H #define ASM_BL_SWITCHER_H -void bL_switch_request(unsigned int cpu, unsigned int new_cluster_id); +int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id); #endif |