A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

Page allocator: get rid of the list of cold pages

Browse source 
We have repeatedly discussed if the cold pages still have a point. There is
one way to join the two lists: Use a single list and put the cold pages at the
end and the hot pages at the beginning. That way a single list can serve for
both types of allocations.

The discussion of the RFC for this and Mel's measurements indicate that
there may not be too much of a point left to having separate lists for
hot and cold pages (see http://marc.info/?t=119492914200001&r=1&w=2).

Signed-off-by: Christoph Lameter <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Martin Bligh <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Lameter 2008-02-04 22:29:19 -08:00 • committed by Linus Torvalds
commit 3dfa5721f1
3 changed files with 40 additions and 49 deletions
Download patch file Download diff file Expand all files Collapse all files

30
mm/vmstat.c
View file

@ -337,7 +337,7 @@ void refresh_cpu_vm_stats(int cpu)
* Check if there are pages remaining in this pageset
* if not then there is nothing to expire.
*/
if (!p->expire || (!p->pcp[0].count && !p->pcp[1].count))
if (!p->expire || !p->pcp.count)
continue;
/*
@ -352,11 +352,8 @@ void refresh_cpu_vm_stats(int cpu)
if (p->expire)
continue;
if (p->pcp[0].count)
drain_zone_pages(zone, p->pcp + 0);
if (p->pcp[1].count)
drain_zone_pages(zone, p->pcp + 1);
if (p->pcp.count)
drain_zone_pages(zone, &p->pcp);
#endif
}
@ -693,20 +690,17 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
"\n pagesets");
for_each_online_cpu(i) {
struct per_cpu_pageset *pageset;
int j;
pageset = zone_pcp(zone, i);
for (j = 0; j < ARRAY_SIZE(pageset->pcp); j++) {
seq_printf(m,
"\n cpu: %i pcp: %i"
"\n count: %i"
"\n high: %i"
"\n batch: %i",
i, j,
pageset->pcp[j].count,
pageset->pcp[j].high,
pageset->pcp[j].batch);
}
seq_printf(m,
"\n cpu: %i"
"\n count: %i"
"\n high: %i"
"\n batch: %i",
i,
pageset->pcp.count,
pageset->pcp.high,
pageset->pcp.batch);
#ifdef CONFIG_SMP
seq_printf(m, "\n vm stats threshold: %d",
pageset->stat_threshold);