[PATCH v2 02/10] arm64: uaccess s/might_sleep/might_fault/
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2013-05-16 11:11:57
Also in:
kvm, linux-arch, linux-arm-kernel, linux-mm, lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
The only reason uaccess routines might sleep is if they fault. Make this explicit. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- arch/arm64/include/asm/uaccess.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 008f848..edb3d5c 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h@@ -166,7 +166,7 @@ do { \ #define get_user(x, ptr) \ ({ \ - might_sleep(); \ + might_fault(); \ access_ok(VERIFY_READ, (ptr), sizeof(*(ptr))) ? \ __get_user((x), (ptr)) : \ ((x) = 0, -EFAULT); \
@@ -227,7 +227,7 @@ do { \ #define put_user(x, ptr) \ ({ \ - might_sleep(); \ + might_fault(); \ access_ok(VERIFY_WRITE, (ptr), sizeof(*(ptr))) ? \ __put_user((x), (ptr)) : \ -EFAULT; \
--
MST