diff options
| author | Christoph Lameter | 2008-10-19 05:26:14 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2008-10-20 17:50:25 +0200 |
| commit | b69408e88bd86b98feb7b9a38fd865e1ddb29827 (patch) | |
| tree | b19277c29fe624870ba776cc6ada59928cd2796d /mm/page_alloc.c | |
| parent | vmscan: move isolate_lru_page() to vmscan.c (diff) | |
| download | kernel-qcow2-linux-b69408e88bd86b98feb7b9a38fd865e1ddb29827.tar.gz kernel-qcow2-linux-b69408e88bd86b98feb7b9a38fd865e1ddb29827.tar.xz kernel-qcow2-linux-b69408e88bd86b98feb7b9a38fd865e1ddb29827.zip | |
vmscan: Use an indexed array for LRU variables
Currently we are defining explicit variables for the inactive and active
list. An indexed array can be more generic and avoid repeating similar
code in several places in the reclaim code.
We are saving a few bytes in terms of code size:
Before:
text data bss dec hex filename
4097753 573120 4092484 8763357 85b7dd vmlinux
After:
text data bss dec hex filename
4097729 573120 4092484 8763333 85b7c5 vmlinux
Having an easy way to add new lru lists may ease future work on the
reclaim code.
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9eb9eb928285..ee7a96ef40dc 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3414,6 +3414,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat, for (j = 0; j < MAX_NR_ZONES; j++) { struct zone *zone = pgdat->node_zones + j; unsigned long size, realsize, memmap_pages; + enum lru_list l; size = zone_spanned_pages_in_node(nid, j, zones_size); realsize = size - zone_absent_pages_in_node(nid, j, @@ -3465,10 +3466,10 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat, zone->prev_priority = DEF_PRIORITY; zone_pcp_init(zone); - INIT_LIST_HEAD(&zone->active_list); - INIT_LIST_HEAD(&zone->inactive_list); - zone->nr_scan_active = 0; - zone->nr_scan_inactive = 0; + for_each_lru(l) { + INIT_LIST_HEAD(&zone->lru[l].list); + zone->lru[l].nr_scan = 0; + } zap_zone_vm_stats(zone); zone->flags = 0; if (!size) |