The only reason uaccess routines might sleep
is if they fault. Make this explicit for
__copy_from_user_nocache, and consistent with
copy_from_user and friends.
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
I've updated all other arches as well - still
build-testing. Any objections to the x86 patch?
arch/x86/include/asm/uaccess_64.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/uaccess_64.h
b/arch/x86/include/asm/uaccess_64.h
index 142810c..4f7923d 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -235,7 +235,7 @@ extern long __copy_user_nocache(void *dst, const void
__user *src,
static inline int
__copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
{
- might_sleep();
+ might_fault();
return __copy_user_nocache(dst, src, size, 1);
}
--
MST
--
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