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yaml
---
r: 185138
b: refs/heads/master
c: 9b3be9f
h: refs/heads/master
v: v3
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Yinghai Lu authored and H. Peter Anvin committed Feb 12, 2010
1 parent bf23124 commit 519fa03
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Showing 3 changed files with 11 additions and 11 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 59be5a8e8ce765cf739ec7f07176219972de7481
refs/heads/master: 9b3be9f99203d9a400e8547f0e80f1d8f8e5738c
10 changes: 0 additions & 10 deletions trunk/arch/x86/include/asm/proto.h
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Expand Up @@ -23,14 +23,4 @@ extern int reboot_force;

long do_arch_prctl(struct task_struct *task, int code, unsigned long addr);

/*
* This looks more complex than it should be. But we need to
* get the type for the ~ right in round_down (it needs to be
* as wide as the result!), and we want to evaluate the macro
* arguments just once each.
*/
#define __round_mask(x,y) ((__typeof__(x))((y)-1))
#define round_up(x,y) ((((x)-1) | __round_mask(x,y))+1)
#define round_down(x,y) ((x) & ~__round_mask(x,y))

#endif /* _ASM_X86_PROTO_H */
10 changes: 10 additions & 0 deletions trunk/include/linux/kernel.h
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Expand Up @@ -44,6 +44,16 @@ extern const char linux_proc_banner[];

#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))

/*
* This looks more complex than it should be. But we need to
* get the type for the ~ right in round_down (it needs to be
* as wide as the result!), and we want to evaluate the macro
* arguments just once each.
*/
#define __round_mask(x, y) ((__typeof__(x))((y)-1))
#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
#define round_down(x, y) ((x) & ~__round_mask(x, y))

#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
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