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| author | Catalin Marinas <catalin.marinas@arm.com> | 2010-09-13 16:59:07 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-09-19 13:17:46 +0200 |
| commit | f8b63c184ad13cc8adc3dadb557d4fbc29f76e4d (patch) | |
| tree | aa524d2dce83f7cae404655785ba5cb344dd763e /arch/arm/include | |
| parent | ARM: 6381/1: Use lazy cache flushing on ARMv7 SMP systems (diff) | |
| download | linux-f8b63c184ad13cc8adc3dadb557d4fbc29f76e4d.tar.xz linux-f8b63c184ad13cc8adc3dadb557d4fbc29f76e4d.zip | |
ARM: 6382/1: Remove superfluous flush_kernel_dcache_page()
Since page cache pages are now considered 'dirty' by default, the cache
flushing is handled via __flush_dcache_page() when a page gets mapped to
user space. Highmem pages on VIVT systems are flushed during kunmap()
and flush_kernel_dcache_page() was already a no-op in this case.
ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE is still defined since ARM needs
specific implementations for flush_kernel_vmap_range() and
invalidate_kernel_vmap_range().
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/cacheflush.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index d3730f0f4b50..042e13994d38 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -405,9 +405,6 @@ static inline void flush_anon_page(struct vm_area_struct *vma, #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE static inline void flush_kernel_dcache_page(struct page *page) { - /* highmem pages are always flushed upon kunmap already */ - if ((cache_is_vivt() || cache_is_vipt_aliasing()) && !PageHighMem(page)) - __cpuc_flush_dcache_area(page_address(page), PAGE_SIZE); } #define flush_dcache_mmap_lock(mapping) \ |