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authorStephen Rothwell <sfr@canb.auug.org.au>2010-02-05 00:09:11 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-05 10:35:05 -0500
commit2938429501b73f6aeb312236eac7ed0416a07cd5 (patch)
tree59d92b0d2a5063fa8c93216750f83d1fe3822a2c
parentcbee4751f612692c1de3b8e420ebcb0fb16c7c56 (diff)
percpu: add __percpu for sparse
This is to make the annotation of percpu variables during the next merge window less painfull. Extracted from a patch by Rusty Russell. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/compiler.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 5be3dab4a695..188fcae10a99 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -15,6 +15,7 @@
15# define __acquire(x) __context__(x,1) 15# define __acquire(x) __context__(x,1)
16# define __release(x) __context__(x,-1) 16# define __release(x) __context__(x,-1)
17# define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0) 17# define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0)
18# define __percpu __attribute__((noderef, address_space(3)))
18extern void __chk_user_ptr(const volatile void __user *); 19extern void __chk_user_ptr(const volatile void __user *);
19extern void __chk_io_ptr(const volatile void __iomem *); 20extern void __chk_io_ptr(const volatile void __iomem *);
20#else 21#else
@@ -32,6 +33,7 @@ extern void __chk_io_ptr(const volatile void __iomem *);
32# define __acquire(x) (void)0 33# define __acquire(x) (void)0
33# define __release(x) (void)0 34# define __release(x) (void)0
34# define __cond_lock(x,c) (c) 35# define __cond_lock(x,c) (c)
36# define __percpu
35#endif 37#endif
36 38
37#ifdef __KERNEL__ 39#ifdef __KERNEL__