[PATCH 16/21] memcg-rename-scan-glonal-lru.patch

From: KAMEZAWA Hiroyuki
Date: Wed Dec 03 2008 - 00:08:01 EST


Rename scan_global_lru() to scanning_global_lru().

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

mm/vmscan.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)

Index: mmotm-2.6.28-Dec02/mm/vmscan.c
===================================================================
--- mmotm-2.6.28-Dec02.orig/mm/vmscan.c
+++ mmotm-2.6.28-Dec02/mm/vmscan.c
@@ -126,15 +126,15 @@ static LIST_HEAD(shrinker_list);
static DECLARE_RWSEM(shrinker_rwsem);

#ifdef CONFIG_CGROUP_MEM_RES_CTLR
-#define scan_global_lru(sc) (!(sc)->mem_cgroup)
+#define scanning_global_lru(sc) (!(sc)->mem_cgroup)
#else
-#define scan_global_lru(sc) (1)
+#define scanning_global_lru(sc) (1)
#endif

static struct zone_reclaim_stat *get_reclaim_stat(struct zone *zone,
struct scan_control *sc)
{
- if (!scan_global_lru(sc))
+ if (!scanning_global_lru(sc))
mem_cgroup_get_reclaim_stat(sc->mem_cgroup, zone);

return &zone->reclaim_stat;
@@ -143,7 +143,7 @@ static struct zone_reclaim_stat *get_rec
static unsigned long zone_nr_pages(struct zone *zone, struct scan_control *sc,
enum lru_list lru)
{
- if (!scan_global_lru(sc))
+ if (!scanning_global_lru(sc))
return mem_cgroup_zone_nr_pages(sc->mem_cgroup, zone, lru);

return zone_page_state(zone, NR_LRU_BASE + lru);
@@ -1144,7 +1144,7 @@ static unsigned long shrink_inactive_lis
__mod_zone_page_state(zone, NR_INACTIVE_ANON,
-count[LRU_INACTIVE_ANON]);

- if (scan_global_lru(sc))
+ if (scanning_global_lru(sc))
zone->pages_scanned += nr_scan;

reclaim_stat->recent_scanned[0] += count[LRU_INACTIVE_ANON];
@@ -1183,7 +1183,7 @@ static unsigned long shrink_inactive_lis
if (current_is_kswapd()) {
__count_zone_vm_events(PGSCAN_KSWAPD, zone, nr_scan);
__count_vm_events(KSWAPD_STEAL, nr_freed);
- } else if (scan_global_lru(sc))
+ } else if (scanning_global_lru(sc))
__count_zone_vm_events(PGSCAN_DIRECT, zone, nr_scan);

__count_zone_vm_events(PGSTEAL, zone, nr_freed);
@@ -1282,7 +1282,7 @@ static void shrink_active_list(unsigned
* zone->pages_scanned is used for detect zone's oom
* mem_cgroup remembers nr_scan by itself.
*/
- if (scan_global_lru(sc)) {
+ if (scanning_global_lru(sc)) {
zone->pages_scanned += pgscanned;
}
reclaim_stat->recent_scanned[!!file] += pgmoved;
@@ -1391,7 +1391,7 @@ static int inactive_anon_is_low(struct z
{
int low;

- if (scan_global_lru(sc))
+ if (scanning_global_lru(sc))
low = inactive_anon_is_low_global(zone);
else
low = mem_cgroup_inactive_anon_is_low(sc->mem_cgroup, zone);
@@ -1445,7 +1445,7 @@ static void get_scan_ratio(struct zone *
file = zone_nr_pages(zone, sc, LRU_ACTIVE_FILE) +
zone_nr_pages(zone, sc, LRU_INACTIVE_FILE);

- if (scan_global_lru(sc)) {
+ if (scanning_global_lru(sc)) {
free = zone_page_state(zone, NR_FREE_PAGES);
/* If we have very few page cache pages,
force-scan anon pages. */
@@ -1527,7 +1527,7 @@ static void shrink_zone(int priority, st
scan >>= priority;
scan = (scan * percent[file]) / 100;
}
- if (scan_global_lru(sc)) {
+ if (scanning_global_lru(sc)) {
zone->lru[l].nr_scan += scan;
nr[l] = zone->lru[l].nr_scan;
if (nr[l] >= sc->swap_cluster_max)
@@ -1602,7 +1602,7 @@ static void shrink_zones(int priority, s
* Take care memory controller reclaiming has small influence
* to global LRU.
*/
- if (scan_global_lru(sc)) {
+ if (scanning_global_lru(sc)) {
if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))
continue;
note_zone_scanning_priority(zone, priority);
@@ -1655,12 +1655,12 @@ static unsigned long do_try_to_free_page

delayacct_freepages_start();

- if (scan_global_lru(sc))
+ if (scanning_global_lru(sc))
count_vm_event(ALLOCSTALL);
/*
* mem_cgroup will not do shrink_slab.
*/
- if (scan_global_lru(sc)) {
+ if (scanning_global_lru(sc)) {
for_each_zone_zonelist(zone, z, zonelist, high_zoneidx) {

if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))
@@ -1679,7 +1679,7 @@ static unsigned long do_try_to_free_page
* Don't shrink slabs when reclaiming memory from
* over limit cgroups
*/
- if (scan_global_lru(sc)) {
+ if (scanning_global_lru(sc)) {
shrink_slab(sc->nr_scanned, sc->gfp_mask, lru_pages, NULL);
if (reclaim_state) {
sc->nr_reclaimed += reclaim_state->reclaimed_slab;
@@ -1710,7 +1710,7 @@ static unsigned long do_try_to_free_page
congestion_wait(WRITE, HZ/10);
}
/* top priority shrink_zones still had more to do? don't OOM, then */
- if (!sc->all_unreclaimable && scan_global_lru(sc))
+ if (!sc->all_unreclaimable && scanning_global_lru(sc))
ret = sc->nr_reclaimed;
out:
/*
@@ -1723,7 +1723,7 @@ out:
if (priority < 0)
priority = 0;

- if (scan_global_lru(sc)) {
+ if (scanning_global_lru(sc)) {
for_each_zone_zonelist(zone, z, zonelist, high_zoneidx) {

if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))

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