| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.18 097/150] xtensa: fix kmap_prot definition | Date | Tue, 13 Jan 2015 23:22:48 -0800 |
| |
3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Max Filippov <jcmvbkbc@gmail.com>
commit ff009ab6d4d4581b62fa055ab6233133aca25ab8 upstream.
Replace PAGE_KERNEL with PAGE_KERNEL_EXEC to allow copy_to_user_page invalidate icache for pages mapped with kmap.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/xtensa/include/asm/highmem.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/xtensa/include/asm/highmem.h +++ b/arch/xtensa/include/asm/highmem.h @@ -25,7 +25,7 @@ #define PKMAP_NR(virt) (((virt) - PKMAP_BASE) >> PAGE_SHIFT) #define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT)) -#define kmap_prot PAGE_KERNEL +#define kmap_prot PAGE_KERNEL_EXEC #if DCACHE_WAY_SIZE > PAGE_SIZE #define get_pkmap_color get_pkmap_color
|