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percpu: add __percpu for sparse.

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We have to make __kernel "__attribute__((address_space(0)))" so we can
cast to it.

tj: * put_cpu_var() update.

    * Annotations added to dynamic allocator interface.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Rusty Russell 2009-10-29 22:34:15 +09:00 • committed by Tejun Heo
parent f7b64fe806
commit e0fdb0e050
4 changed files with 18 additions and 10 deletions
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4
include/linux/compiler.h
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@ -5,7 +5,7 @@
#ifdef __CHECKER__
# define __user __attribute__((noderef, address_space(1)))
# define __kernel /* default address space */
# define __kernel __attribute__((address_space(0)))
# define __safe __attribute__((safe))
# define __force __attribute__((force))
# define __nocast __attribute__((nocast))
@ -15,6 +15,7 @@
# define __acquire(x) __context__(x,1)
# define __release(x) __context__(x,-1)
# define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0)
# define __percpu __attribute__((noderef, address_space(3)))
extern void __chk_user_ptr(const volatile void __user *);
extern void __chk_io_ptr(const volatile void __iomem *);
#else
@ -32,6 +33,7 @@ extern void __chk_io_ptr(const volatile void __iomem *);
# define __acquire(x) (void)0
# define __release(x) (void)0
# define __cond_lock(x,c) (c)
# define __percpu
#endif
#ifdef __KERNEL__