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Memory controller: add per cgroup LRU and reclaim

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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.

[[email protected]: fix warning]
[[email protected]: initialize all scan_control's isolate_pages member]
[[email protected]: make do_try_to_free_pages() static]
[[email protected]: memcgroup: fix try_to_free order]
[[email protected]: this unlock_page_cgroup() is unnecessary]
Signed-off-by: Pavel Emelianov <[email protected]>
Signed-off-by: Balbir Singh <[email protected]>
Cc: Paul Menage <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Nick Piggin <[email protected]>
Cc: Kirill Korotaev <[email protected]>
Cc: Herbert Poetzl <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Vaidyanathan Srinivasan <[email protected]>
Signed-off-by: Lee Schermerhorn <[email protected]>
Signed-off-by: Hugh Dickins <[email protected]>
Signed-off-by: KAMEZAWA Hiroyuki <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Balbir Singh 2008-02-07 00:13:56 -08:00 • committed by Linus Torvalds
commit 66e1707bc3
6 changed files with 286 additions and 30 deletions
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2
mm/swap.c
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@ -29,6 +29,7 @@
#include <linux/cpu.h>
#include <linux/notifier.h>
#include <linux/backing-dev.h>
#include <linux/memcontrol.h>
/* How many pages do we try to swap or page in/out together? */
int page_cluster;
@ -175,6 +176,7 @@ void activate_page(struct page *page)
SetPageActive(page);
add_page_to_active_list(zone, page);
__count_vm_event(PGACTIVATE);
mem_cgroup_move_lists(page_get_page_cgroup(page), true);
}
spin_unlock_irq(&zone->lru_lock);
}