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| author | Michael S. Tsirkin <mst@redhat.com> | 2013-05-26 17:30:42 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-05-28 09:41:06 +0200 |
| commit | 56d2ef789f7c424918abdf6b95d84a64c1473220 (patch) | |
| tree | 4a0bce4541c71758c11c467e56c2647b48760893 /arch/arm64/include/asm/uaccess.h | |
| parent | e0acd0bd0594161be44c054bb6b984972f444beb (diff) | |
| download | op-kernel-dev-56d2ef789f7c424918abdf6b95d84a64c1473220.zip op-kernel-dev-56d2ef789f7c424918abdf6b95d84a64c1473220.tar.gz | |
arm64: 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>
Acked-by: Catalin Marinas <catalin.marinas@arm.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/1369577426-26721-2-git-send-email-mst@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/uaccess.h')
| -rw-r--r-- | arch/arm64/include/asm/uaccess.h | 4 |
1 files 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; \ |
