Re: [patch 02/11] mm: swapfile: clean up unuse_pte race handling

[patch 00/11] mm: memcg: charge/uncharge improvements · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
[patch 03/11] mm: shmem: do not try to uncharge known swapcache pages · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 03/11] mm: shmem: do not try to uncharge known swapcache pages · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 03/11] mm: shmem: do not try to uncharge known swapcache pages · Michal Hocko <hidden> · 2012-07-09
Re: [patch 03/11] mm: shmem: do not try to uncharge known swapcache pages · Hugh Dickins <hughd@google.com> · 2012-07-09
Re: [patch 03/11] mm: shmem: do not try to uncharge known swapcache pages · Michal Hocko <hidden> · 2012-07-10
Re: [patch 03/11] mm: shmem: do not try to uncharge known swapcache pages · Hugh Dickins <hughd@google.com> · 2012-07-11
Re: [patch 03/11] mm: shmem: do not try to uncharge known swapcache pages · Michal Hocko <hidden> · 2012-07-12
Re: [patch 03/11] mm: shmem: do not try to uncharge known swapcache pages · Hugh Dickins <hughd@google.com> · 2012-07-09
[patch 06/11] mm: memcg: move swapin charge functions above callsites · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 06/11] mm: memcg: move swapin charge functions above callsites · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 06/11] mm: memcg: move swapin charge functions above callsites · Michal Hocko <hidden> · 2012-07-09
[patch 05/11] mm: memcg: only check for PageSwapCache when uncharging anon · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 05/11] mm: memcg: only check for PageSwapCache when uncharging anon · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 05/11] mm: memcg: only check for PageSwapCache when uncharging anon · Michal Hocko <hidden> · 2012-07-09
[patch 07/11] mm: memcg: remove unneeded shmem charge type · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 07/11] mm: memcg: remove unneeded shmem charge type · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 07/11] mm: memcg: remove unneeded shmem charge type · Michal Hocko <hidden> · 2012-07-09
[patch 11/11] mm: memcg: only check anon swapin page charges for swap cache · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 11/11] mm: memcg: only check anon swapin page charges for swap cache · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 11/11] mm: memcg: only check anon swapin page charges for swap cache · Michal Hocko <hidden> · 2012-07-09
[patch 09/11] mm: memcg: split swapin charge function into private and public part · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 09/11] mm: memcg: split swapin charge function into private and public part · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 09/11] mm: memcg: split swapin charge function into private and public part · Michal Hocko <hidden> · 2012-07-09
[patch 10/11] mm: memcg: only check swap cache pages for repeated charging · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 10/11] mm: memcg: only check swap cache pages for repeated charging · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 10/11] mm: memcg: only check swap cache pages for repeated charging · Michal Hocko <hidden> · 2012-07-09
[patch 08/11] mm: memcg: remove needless !mm fixup to init_mm when charging · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 08/11] mm: memcg: remove needless !mm fixup to init_mm when charging · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 08/11] mm: memcg: remove needless !mm fixup to init_mm when charging · Michal Hocko <hidden> · 2012-07-09
Re: [patch 08/11] mm: memcg: remove needless !mm fixup to init_mm when charging · Wanpeng Li <hidden> · 2012-07-10
Re: [patch 08/11] mm: memcg: remove needless !mm fixup to init_mm when charging · Michal Hocko <hidden> · 2012-07-10
Re: [patch 08/11] mm: memcg: remove needless !mm fixup to init_mm when charging · Wanpeng Li <hidden> · 2012-07-10
Re: [patch 08/11] mm: memcg: remove needless !mm fixup to init_mm when charging · Michal Hocko <hidden> · 2012-07-10
[patch 04/11] mm: memcg: push down PageSwapCache check into uncharge entry functions · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 04/11] mm: memcg: push down PageSwapCache check into uncharge entry functions · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 04/11] mm: memcg: push down PageSwapCache check into uncharge entry functions · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-09
Re: [patch 04/11] mm: memcg: push down PageSwapCache check into uncharge entry functions · Michal Hocko <hidden> · 2012-07-09
[patch 01/11] mm: memcg: fix compaction/migration failing due to memcg limits · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 01/11] mm: memcg: fix compaction/migration failing due to memcg limits · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 01/11] mm: memcg: fix compaction/migration failing due to memcg limits · Michal Hocko <hidden> · 2012-07-09
[patch 02/11] mm: swapfile: clean up unuse_pte race handling · Johannes Weiner <hannes@cmpxchg.org> · 2012-07-05
Re: [patch 02/11] mm: swapfile: clean up unuse_pte race handling · Kamezawa Hiroyuki <hidden> · 2012-07-09
Re: [patch 02/11] mm: swapfile: clean up unuse_pte race handling · Michal Hocko <hidden> · 2012-07-09
Re: [patch 00/11] mm: memcg: charge/uncharge improvements · Michal Hocko <hidden> · 2012-07-09

From: Kamezawa Hiroyuki <hidden>
Date: 2012-07-09 02:31:40
Also in: linux-mm, lkml

(2012/07/05 9:44), Johannes Weiner wrote:

The conditional mem_cgroup_cancel_charge_swapin() is a leftover from
when the function would continue to reestablish the page even after
mem_cgroup_try_charge_swapin() failed.  After 85d9fc8 "memcg: fix
refcnt handling at swapoff", the condition is always true when this
code is reached.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>

Acked-by: KAMEZAWA Hiroyuki <redacted>


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