Use do_div to divide s64 value. Otherwise, build would be failed
like Dave Young reported.
mm/built-in.o: In function `mem_cgroup_dirty_info':
/home/dave/vdb/build/mm/linux-2.6.36/mm/memcontrol.c:1251: undefined
reference to `__divdi3'
/home/dave/vdb/build/mm/linux-2.6.36/mm/memcontrol.c:1259: undefined
reference to `__divdi3'
make: *** [.tmp_vmlinux1] Error 1
Tested-by: Dave Young <hidave.darkstar@xxxxxxxxx>
Signed-off-by: Minchan Kim <minchan.kim@xxxxxxxxx>
---
mm/memcontrol.c | 16 +++++++++-------
1 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 76386f4..a15d95e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1247,18 +1247,20 @@ bool mem_cgroup_dirty_info(unsigned long sys_available_mem,
if (dirty_param.dirty_bytes)
info->dirty_thresh =
DIV_ROUND_UP(dirty_param.dirty_bytes, PAGE_SIZE);
- else
- info->dirty_thresh =
- (dirty_param.dirty_ratio * available_mem) / 100;
+ else {
+ info->dirty_thresh = dirty_param.dirty_ratio * available_mem;
+ do_div(info->dirty_thresh, 100);
+ }
if (dirty_param.dirty_background_bytes)
info->background_thresh =
DIV_ROUND_UP(dirty_param.dirty_background_bytes,
PAGE_SIZE);
- else
- info->background_thresh =
- (dirty_param.dirty_background_ratio *
- available_mem) / 100;
+ else {
+ info->background_thresh = dirty_param.dirty_background_ratio *
+ available_mem;
+ do_div(info->background_thresh, 100);
+ }
info->nr_reclaimable =
mem_cgroup_page_stat(MEMCG_NR_RECLAIM_PAGES);
--
1.7.0.5
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxxx For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>