diff options
| author | Ashok Kumar <ashoks@broadcom.com> | 2015-12-17 01:38:31 -0800 |
|---|---|---|
| committer | Jeff Vander Stoep <jeffv@google.com> | 2016-09-18 13:33:57 -0700 |
| commit | b10551a35399a277afe9b2e28266e2a00a5f6253 (patch) | |
| tree | e55da67a9a1269f243ba32972a6c9e8a6d34fa89 | |
| parent | 41b7e19e9b27266024dc0565426a91d922c3d96b (diff) | |
UPSTREAM: 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>
Bug: 30369029
Patchset: rework-pagetable
(cherry picked from commit e6b1185f77351aa154e63bd54b05d07ff99d4ffa)
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
Change-Id: I2e02ce2f43f68287337bed30e3c3455c0eee4164
| -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); |