diff options
| author | Ashok Kumar <ashoks@broadcom.com> | 2015-12-17 01:38:31 -0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-05-11 16:43:13 +0800 |
| commit | ac7406c28c8bada863d36c46ca246bb7b76f3e9f (patch) | |
| tree | c74053ef752dbaa890c1a1f825ad0679c62b619a /arch/arm64/mm/copypage.c | |
| parent | a79c216b06b18f1545d55e8f238dd9b49896f347 (diff) | |
arm64: Defer dcache flush in __cpu_copy_user_page
Defer dcache flushing to __sync_icache_dcache by calling
flush_dcache_page which clears PG_dcache_clean flag.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Ashok Kumar <ashoks@broadcom.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
(cherry picked from commit e6b1185f77351aa154e63bd54b05d07ff99d4ffa)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'arch/arm64/mm/copypage.c')
| -rw-r--r-- | arch/arm64/mm/copypage.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/mm/copypage.c b/arch/arm64/mm/copypage.c index 13bbc3be6f5a..22e4cb4d6f53 100644 --- a/arch/arm64/mm/copypage.c +++ b/arch/arm64/mm/copypage.c @@ -24,8 +24,9 @@ void __cpu_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr) { + struct page *page = virt_to_page(kto); copy_page(kto, kfrom); - __flush_dcache_area(kto, PAGE_SIZE); + flush_dcache_page(page); } EXPORT_SYMBOL_GPL(__cpu_copy_user_page); |