Messages in this thread Patch in this message |  | | | Date | Thu, 7 Jul 2011 09:30:19 -0500 | | From | Heechul Yun <> | | Subject | [PATCHv2] remove unnecessary cache flush on v6 copypage |
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ARM: mm: remove unnecessary cache flush on v6 copypage
Originally introduced to maintain coherency between icache and dcache in v6 nonaliasing mode. This is now handled by __sync_icache_dcache since c0177800, therefore unneceary in this function.
Signed-off-by: Heechul Yun <heechul@illinois.edu> Acked-by: Catalin Marinas <catalin.marinas@arm.com> -- arch/arm/mm/copypage-v6.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c index bdba6c6..63cca00 100644 --- a/arch/arm/mm/copypage-v6.c +++ b/arch/arm/mm/copypage-v6.c @@ -41,7 +41,6 @@ static void v6_copy_user_highpage_nonaliasing(struct page *to, kfrom = kmap_atomic(from, KM_USER0); kto = kmap_atomic(to, KM_USER1); copy_page(kto, kfrom); - __cpuc_flush_dcache_area(kto, PAGE_SIZE); kunmap_atomic(kto, KM_USER1); kunmap_atomic(kfrom, KM_USER0); }
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