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authorRoman Zippel <zippel@linux-m68k.org>2008-05-01 04:34:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-01 08:03:58 -0700
commitf8bd2258e2d520dff28c855658bd24bdafb5102d (patch)
treed76db1dc858cb316bc7d5b8473f690a753fd2c93 /mm/slub.c
parent6f6d6a1a6a1336431a6cba60ace9e97c3a496a19 (diff)
remove div_long_long_rem
x86 is the only arch right now, which provides an optimized for div_long_long_rem and it has the downside that one has to be very careful that the divide doesn't overflow. The API is a little akward, as the arguments for the unsigned divide are signed. The signed version also doesn't handle a negative divisor and produces worse code on 64bit archs. There is little incentive to keep this API alive, so this converts the few users to the new API. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 70db2897c1e..32b62623846 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -22,6 +22,7 @@
#include <linux/debugobjects.h>
#include <linux/kallsyms.h>
#include <linux/memory.h>
+#include <linux/math64.h>
/*
* Lock order:
@@ -3621,12 +3622,10 @@ static int list_locations(struct kmem_cache *s, char *buf,
len += sprintf(buf + len, "<not-available>");
if (l->sum_time != l->min_time) {
- unsigned long remainder;
-
len += sprintf(buf + len, " age=%ld/%ld/%ld",
- l->min_time,
- div_long_long_rem(l->sum_time, l->count, &remainder),
- l->max_time);
+ l->min_time,
+ (long)div_u64(l->sum_time, l->count),
+ l->max_time);
} else
len += sprintf(buf + len, " age=%ld",
l->min_time);