The patch titled
mm: micro optimise zone_watermark_ok
has been removed from the -mm tree. Its filename is
mm-micro-optimise-zone_watermark_ok.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: mm: micro optimise zone_watermark_ok
From: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Having min be a signed quantity means gcc can't turn high latency divides
into shifts. There happen to be two such divides for GFP_ATOMIC (ie.
networking, ie. important) allocations, one of which depends on the other.
Fixing this makes code smaller as a bonus.
Shame on somebody (probably me).
Signed-off-by: Nick Piggin <npiggin@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/page_alloc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN mm/page_alloc.c~mm-micro-optimise-zone_watermark_ok mm/page_alloc.c
--- a/mm/page_alloc.c~mm-micro-optimise-zone_watermark_ok
+++ a/mm/page_alloc.c
@@ -900,7 +900,8 @@ int zone_watermark_ok(struct zone *z, in
int classzone_idx, int alloc_flags)
{
/* free_pages my go negative - that's OK */
- long min = mark, free_pages = z->free_pages - (1 << order) + 1;
+ unsigned long min = mark;
+ long free_pages = z->free_pages - (1 << order) + 1;
int o;
if (alloc_flags & ALLOC_HIGH)
_
Patches currently in -mm which might be from nickpiggin@xxxxxxxxxxxx are
origin.patch
sched2-sched-domain-sysctl.patch
-
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