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authorMichael S. Tsirkin <mst@redhat.com>2013-05-26 17:30:56 +0300
committerIngo Molnar <mingo@kernel.org>2013-05-28 09:41:08 +0200
commitac093f8d5e76be1f2654acfd7a59d339ba037654 (patch)
tree40c0c5c6065e96d238ca6c0b810c5c8625d5e596 /arch/microblaze
parent01682576d5fd1c92b96d79560b17208a6567c331 (diff)
downloadlinux-ac093f8d5e76be1f2654acfd7a59d339ba037654.tar.bz2
microblaze: uaccess s/might_sleep/might_fault/
The only reason uaccess routines might sleep is if they fault. Make this explicit. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1369577426-26721-5-git-send-email-mst@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/include/asm/uaccess.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
index efe59d881789..2fc8bf7bcdd0 100644
--- a/arch/microblaze/include/asm/uaccess.h
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -145,7 +145,7 @@ static inline unsigned long __must_check __clear_user(void __user *to,
static inline unsigned long __must_check clear_user(void __user *to,
unsigned long n)
{
- might_sleep();
+ might_fault();
if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
return n;
@@ -371,7 +371,7 @@ extern long __user_bad(void);
static inline long copy_from_user(void *to,
const void __user *from, unsigned long n)
{
- might_sleep();
+ might_fault();
if (access_ok(VERIFY_READ, from, n))
return __copy_from_user(to, from, n);
return n;
@@ -385,7 +385,7 @@ static inline long copy_from_user(void *to,
static inline long copy_to_user(void __user *to,
const void *from, unsigned long n)
{
- might_sleep();
+ might_fault();
if (access_ok(VERIFY_WRITE, to, n))
return __copy_to_user(to, from, n);
return n;