diff options
| author | Will Deacon <will.deacon@arm.com> | 2014-05-02 16:24:10 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-08-11 21:41:48 +0100 |
| commit | a58891df6c6f15c10d6f9037be759b31c4c1ac81 (patch) | |
| tree | bacada6cb396f129fcc362ceee4719f9970a2abf /arch/arm64/kernel | |
| parent | 90bc330383ed6799f1f0164509f836c9b82ad8b1 (diff) | |
arm64: barriers: make use of barrier options with explicit barriers
When calling our low-level barrier macros directly, we can often suffice
with more relaxed behaviour than the default "all accesses, full system"
option.
This patch updates the users of dsb() to specify the option which they
actually require.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 98f7685ee69f871ba991089cb9685f0da07517ea)
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/process.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 1c0a9be2ffa8..8e78cb238376 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -294,7 +294,7 @@ struct task_struct *__switch_to(struct task_struct *prev, * Complete any pending TLB or cache maintenance on this CPU in case * the thread migrates to a different CPU. */ - dsb(); + dsb(ish); /* the actual thread switch */ last = cpu_switch_to(prev, next); |