diff options
| author |   Will Deacon <will.deacon@arm.com> | 2014-05-02 16:24:10 +0100 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2014-05-09 17:03:15 +0100 |
| commit | 98f7685ee69f871ba991089cb9685f0da07517ea (patch) | |
| tree | f62bfc6c13d2e54c70349f47f85438f8d596fe36 /arch/arm64/kernel/process.c | |
| parent | arm64: mm: Optimise tlb flush logic where we have >4K granule (diff) | |
| download | linux-dev-98f7685ee69f871ba991089cb9685f0da07517ea.tar.xz linux-dev-98f7685ee69f871ba991089cb9685f0da07517ea.zip | |
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>
Diffstat (limited to 'arch/arm64/kernel/process.c')
| -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 6391485f342d..f7c446a5e97b 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -300,7 +300,7 @@ 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); |