Piteball
/
android_kernel_samsung_msm8976
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
1
1
Fork 0
Code Issues Projects Releases Wiki Activity

Revert "android: lowmemorykiller: add lmk parameters tunning code." 

This reverts commit f92471abb9.
This commit is contained in:
Thierry Strudel 2015-12-22 10:10:10 -08:00 committed by syphyr
parent 6b1475d492
commit 44ba2354e3
1 changed files with 0 additions and 88 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
drivers/staging/android/lowmemorykiller.c
View File

@ -42,13 +42,6 @@
#include <linux/notifier.h>
#include <linux/mutex.h>
#include <linux/delay.h>
#include <linux/swap.h>
#ifdef CONFIG_HIGHMEM
#define _ZONE ZONE_HIGHMEM
#else
#define _ZONE ZONE_NORMAL
#endif
#define CREATE_TRACE_POINTS
#include "trace/lowmemorykiller.h"
@ -68,7 +61,6 @@ static int lowmem_minfree[6] = {
16 * 1024, /* 64MB */
};
static int lowmem_minfree_size = 4;
static int lmk_fast_run = 1;
static unsigned long lowmem_deathpending_timeout;
@ -96,83 +88,6 @@ static int test_task_flag(struct task_struct *p, int flag)
static DEFINE_MUTEX(scan_mutex);
void tune_lmk_zone_param(struct zonelist *zonelist, int classzone_idx,
int *other_free, int *other_file)
{
struct zone *zone;
struct zoneref *zoneref;
int zone_idx;
for_each_zone_zonelist(zone, zoneref, zonelist, MAX_NR_ZONES) {
if ((zone_idx = zonelist_zone_idx(zoneref)) == ZONE_MOVABLE)
continue;
if (zone_idx > classzone_idx) {
if (other_free != NULL)
*other_free -= zone_page_state(zone,
NR_FREE_PAGES);
if (other_file != NULL)
*other_file -= zone_page_state(zone,
NR_FILE_PAGES)
- zone_page_state(zone, NR_SHMEM);
} else if (zone_idx < classzone_idx) {
if (zone_watermark_ok(zone, 0, 0, classzone_idx, 0))
*other_free -=
zone->lowmem_reserve[classzone_idx];
else
*other_free -=
zone_page_state(zone, NR_FREE_PAGES);
}
}
}
void tune_lmk_param(int *other_free, int *other_file, struct shrink_control *sc)
{
gfp_t gfp_mask;
struct zone *preferred_zone;
struct zonelist *zonelist;
enum zone_type high_zoneidx, classzone_idx;
unsigned long balance_gap;
gfp_mask = sc->gfp_mask;
zonelist = node_zonelist(0, gfp_mask);
high_zoneidx = gfp_zone(gfp_mask);
first_zones_zonelist(zonelist, high_zoneidx, NULL, &preferred_zone);
classzone_idx = zone_idx(preferred_zone);
balance_gap = min(low_wmark_pages(preferred_zone),
(preferred_zone->present_pages +
KSWAPD_ZONE_BALANCE_GAP_RATIO-1) /
KSWAPD_ZONE_BALANCE_GAP_RATIO);
if (likely(current_is_kswapd() && zone_watermark_ok(preferred_zone, 0,
high_wmark_pages(preferred_zone) + SWAP_CLUSTER_MAX +
balance_gap, 0, 0))) {
if (lmk_fast_run)
tune_lmk_zone_param(zonelist, classzone_idx, other_free,
other_file);
else
tune_lmk_zone_param(zonelist, classzone_idx, other_free,
NULL);
if (zone_watermark_ok(preferred_zone, 0, 0, _ZONE, 0))
*other_free -=
preferred_zone->lowmem_reserve[_ZONE];
else
*other_free -= zone_page_state(preferred_zone,
NR_FREE_PAGES);
lowmem_print(4, "lowmem_shrink of kswapd tunning for highmem "
"ofree %d, %d\n", *other_free, *other_file);
} else {
tune_lmk_zone_param(zonelist, classzone_idx, other_free,
other_file);
lowmem_print(4, "lowmem_shrink tunning for others ofree %d, "
"%d\n", *other_free, *other_file);
}
}
static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
{
struct task_struct *tsk;
@ -198,8 +113,6 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
other_file = global_page_state(NR_FILE_PAGES) -
global_page_state(NR_SHMEM);
tune_lmk_param(&other_free, &other_file, sc);
if (lowmem_adj_size < array_size)
array_size = lowmem_adj_size;
if (lowmem_minfree_size < array_size)
@ -418,7 +331,6 @@ module_param_array_named(adj, lowmem_adj, short, &lowmem_adj_size,
module_param_array_named(minfree, lowmem_minfree, uint, &lowmem_minfree_size,
S_IRUGO | S_IWUSR);
module_param_named(debug_level, lowmem_debug_level, uint, S_IRUGO | S_IWUSR);
module_param_named(lmk_fast_run, lmk_fast_run, int, S_IRUGO | S_IWUSR);
module_init(lowmem_init);
module_exit(lowmem_exit);