diff options
| author | Julia Lawall <julia@diku.dk> | 2008-10-15 22:01:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 11:21:30 -0700 |
| commit | cbf330b94e9c888e9d2b99523037f9be5c4ba795 (patch) | |
| tree | db0d0c4e873dfec8a46a127c63e86eeaf51fbeb0 /drivers/misc | |
| parent | 1ecfea06386c6b1344e83c8f909c87c88262ba1d (diff) | |
drivers/misc: Use DIV_ROUND_UP
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
(d)) but is perhaps more readable.
An extract of the semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@haskernel@
@@
#include <linux/kernel.h>
@depends on haskernel@
expression n,d;
@@
(
- (n + d - 1) / d
+ DIV_ROUND_UP(n,d)
|
- (n + (d - 1)) / d
+ DIV_ROUND_UP(n,d)
)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP((n),d)
+ DIV_ROUND_UP(n,d)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP(n,(d))
+ DIV_ROUND_UP(n,d)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/sgi-gru/grukservices.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/sgi-gru/grukservices.c b/drivers/misc/sgi-gru/grukservices.c index dfd49af0fe1..08d29cd756b 100644 --- a/drivers/misc/sgi-gru/grukservices.c +++ b/drivers/misc/sgi-gru/grukservices.c @@ -466,7 +466,7 @@ int gru_send_message_gpa(unsigned long mq, void *mesg, unsigned int bytes) STAT(mesq_send); BUG_ON(bytes < sizeof(int) || bytes > 2 * GRU_CACHE_LINE_BYTES); - clines = (bytes + GRU_CACHE_LINE_BYTES - 1) / GRU_CACHE_LINE_BYTES; + clines = DIV_ROUND_UP(bytes, GRU_CACHE_LINE_BYTES); if (gru_get_cpu_resources(bytes, &cb, &dsr)) return MQE_BUG_NO_RESOURCES; memcpy(dsr, mesg, bytes); |