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authorSteven Whitehouse <swhiteho@redhat.com>2006-09-25 23:32:40 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 08:48:58 -0700
commit930631edd4b1fe2781d9fe90edbe35d89dfc94cc (patch)
tree24341082c9043742e45f7865f54ad3223e2fd89e
parent060ec3d52db417a4fa554b6e14594ca62418c326 (diff)
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op-kernel-dev-930631edd4b1fe2781d9fe90edbe35d89dfc94cc.tar.gz
[PATCH] add DIV_ROUND_UP()
Add the DIV_ROUND_UP() helper macro: divide `n' by `d', rounding up. Stolen from the gfs2 tree(!) because the swsusp patches need it. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--include/linux/kernel.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 2b2ae4f..e44a37e 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -33,6 +33,7 @@ extern const char linux_banner[];
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#define ALIGN(x,a) (((x)+(a)-1UL)&~((a)-1UL))
#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))
#define KERN_EMERG "<0>" /* system is unusable */
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