aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorYinghai Lu <yinghai@kernel.org>2010-02-10 04:20:29 -0500
committerH. Peter Anvin <hpa@zytor.com>2010-02-12 12:42:39 -0500
commit9b3be9f99203d9a400e8547f0e80f1d8f8e5738c (patch)
treef23f2dd639d666daa58339d0ef8f3519fdc7c488
parent59be5a8e8ce765cf739ec7f07176219972de7481 (diff)
Move round_up/down to kernel.h
... in preparation of moving early_res to kernel/. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1265793639-15071-26-git-send-email-yinghai@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
-rw-r--r--arch/x86/include/asm/proto.h10
-rw-r--r--include/linux/kernel.h10
2 files changed, 10 insertions, 10 deletions
diff --git a/arch/x86/include/asm/proto.h b/arch/x86/include/asm/proto.h
index 4009f6534f52..6f414ed88620 100644
--- a/arch/x86/include/asm/proto.h
+++ b/arch/x86/include/asm/proto.h
@@ -23,14 +23,4 @@ extern int reboot_force;
23 23
24long do_arch_prctl(struct task_struct *task, int code, unsigned long addr); 24long do_arch_prctl(struct task_struct *task, int code, unsigned long addr);
25 25
26/*
27 * This looks more complex than it should be. But we need to
28 * get the type for the ~ right in round_down (it needs to be
29 * as wide as the result!), and we want to evaluate the macro
30 * arguments just once each.
31 */
32#define __round_mask(x,y) ((__typeof__(x))((y)-1))
33#define round_up(x,y) ((((x)-1) | __round_mask(x,y))+1)
34#define round_down(x,y) ((x) & ~__round_mask(x,y))
35
36#endif /* _ASM_X86_PROTO_H */ 26#endif /* _ASM_X86_PROTO_H */
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 328bca609b9b..d45e372fad81 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -44,6 +44,16 @@ extern const char linux_proc_banner[];
44 44
45#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) 45#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
46 46
47/*
48 * This looks more complex than it should be. But we need to
49 * get the type for the ~ right in round_down (it needs to be
50 * as wide as the result!), and we want to evaluate the macro
51 * arguments just once each.
52 */
53#define __round_mask(x, y) ((__typeof__(x))((y)-1))
54#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
55#define round_down(x, y) ((x) & ~__round_mask(x, y))
56
47#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f)) 57#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
48#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) 58#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
49#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) 59#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))