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authorBalbir Singh <balbir@linux.vnet.ibm.com>2008-02-07 03:13:56 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 11:42:18 -0500
commit66e1707bc34609f626e2e7b4fe7e454c9748bad5 (patch)
treed850a729887485874c976ba64eb85e3406e488a1 /mm/swap.c
parent67e465a77ba658635309ee00b367bec6555ea544 (diff)
Memory controller: add per cgroup LRU and reclaim
Add the page_cgroup to the per cgroup LRU. The reclaim algorithm has been modified to make the isolate_lru_pages() as a pluggable component. The scan_control data structure now accepts the cgroup on behalf of which reclaims are carried out. try_to_free_pages() has been extended to become cgroup aware. [akpm@linux-foundation.org: fix warning] [Lee.Schermerhorn@hp.com: initialize all scan_control's isolate_pages member] [bunk@kernel.org: make do_try_to_free_pages() static] [hugh@veritas.com: memcgroup: fix try_to_free order] [kamezawa.hiroyu@jp.fujitsu.com: this unlock_page_cgroup() is unnecessary] Signed-off-by: Pavel Emelianov <xemul@openvz.org> Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Paul Menage <menage@google.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Kirill Korotaev <dev@sw.ru> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: David Rientjes <rientjes@google.com> Cc: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@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/swap.c')
-rw-r--r--mm/swap.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/swap.c b/mm/swap.c
index 57b7e25a939c..710a20bb9749 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -29,6 +29,7 @@
29#include <linux/cpu.h> 29#include <linux/cpu.h>
30#include <linux/notifier.h> 30#include <linux/notifier.h>
31#include <linux/backing-dev.h> 31#include <linux/backing-dev.h>
32#include <linux/memcontrol.h>
32 33
33/* How many pages do we try to swap or page in/out together? */ 34/* How many pages do we try to swap or page in/out together? */
34int page_cluster; 35int page_cluster;
@@ -175,6 +176,7 @@ void activate_page(struct page *page)
175 SetPageActive(page); 176 SetPageActive(page);
176 add_page_to_active_list(zone, page); 177 add_page_to_active_list(zone, page);
177 __count_vm_event(PGACTIVATE); 178 __count_vm_event(PGACTIVATE);
179 mem_cgroup_move_lists(page_get_page_cgroup(page), true);
178 } 180 }
179 spin_unlock_irq(&zone->lru_lock); 181 spin_unlock_irq(&zone->lru_lock);
180} 182}