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authorLinus Torvalds <torvalds@linux-foundation.org>2014-07-11 15:09:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-07-11 15:09:15 -0700
commitef24209fb21a13aceb8069db609e145789c2f500 (patch)
treeca432c16229e4531830ce64e639f3286c5fd2f4e
parent67b9d76f9e2f9f87f94a11521cc996dc2e43ce14 (diff)
parentfa2ec3ea10bd377f9d55772b1dab65178425a1a2 (diff)
downloadlinux-ef24209fb21a13aceb8069db609e145789c2f500.tar.gz
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas: "ARM64 implementation of TASK_SIZE_OF and exporting two functions to modules" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: implement TASK_SIZE_OF arm64: export __cpu_{clear,copy}_user_page functions
-rw-r--r--arch/arm64/include/asm/memory.h2
-rw-r--r--arch/arm64/mm/copypage.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 993bce527b8..902eb708804 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -56,6 +56,8 @@
#define TASK_SIZE_32 UL(0x100000000)
#define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \
TASK_SIZE_32 : TASK_SIZE_64)
+#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_32BIT) ? \
+ TASK_SIZE_32 : TASK_SIZE_64)
#else
#define TASK_SIZE TASK_SIZE_64
#endif /* CONFIG_COMPAT */
diff --git a/arch/arm64/mm/copypage.c b/arch/arm64/mm/copypage.c
index 9aecbace412..13bbc3be6f5 100644
--- a/arch/arm64/mm/copypage.c
+++ b/arch/arm64/mm/copypage.c
@@ -27,8 +27,10 @@ void __cpu_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
copy_page(kto, kfrom);
__flush_dcache_area(kto, PAGE_SIZE);
}
+EXPORT_SYMBOL_GPL(__cpu_copy_user_page);
void __cpu_clear_user_page(void *kaddr, unsigned long vaddr)
{
clear_page(kaddr);
}
+EXPORT_SYMBOL_GPL(__cpu_clear_user_page);