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authorJens Axboe <jens.axboe@oracle.com>2007-10-12 12:40:38 +0200
committerJens Axboe <jens.axboe@oracle.com>2007-10-12 12:40:38 +0200
commit2da96acde0318f121ed3f5993ae9324c856ecfd4 (patch)
tree020f58a39c5ceb9bd3bca1a63ad22e3a2da98e57 /include/linux/kernel.h
parent782e3b3b3804c38d5130c7f21d7ec7bf6709023f (diff)
[BLOCK] Move sector_div() from blkdev.h to kernel.h
We need it even if CONFIG_BLOCK is disabled, so move it outside of the block layer include system. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/kernel.h')
-rw-r--r--include/linux/kernel.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 47160fe378c9..d9725a28a265 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -42,6 +42,20 @@ extern const char linux_proc_banner[];
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
+#ifdef CONFIG_LBD
+# include <asm/div64.h>
+# define sector_div(a, b) do_div(a, b)
+#else
+# define sector_div(n, b)( \
+{ \
+ int _res; \
+ _res = (n) % (b); \
+ (n) /= (b); \
+ _res; \
+} \
+)
+#endif
+
/**
* upper_32_bits - return bits 32-63 of a number
* @n: the number we're accessing