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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2008-02-07 09:14:16 +0100
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 17:42:20 +0100
commitcc8475822f8a4b17e9b76e7fadb6b9a341860422 (patch)
treeb7e3ee9aba56ffaf93130786f3439cc43339e586 /include/asm-arm/arch-pnx4008/system.h
parentmemory cgroup enhancements: fix zone handling in try_to_free_mem_cgroup_page (diff)
downloadlinux-cc8475822f8a4b17e9b76e7fadb6b9a341860422.tar.xz
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memory cgroup enhancements: force_empty interface for dropping all account in empty cgroup
This patch adds an interface "memory.force_empty". Any write to this file will drop all charges in this cgroup if there is no task under. %echo 1 > /....../memory.force_empty will drop all charges of memory cgroup if cgroup's tasks is empty. This is useful to invoke rmdir() against memory cgroup successfully. Tested and worked well on x86_64/fake-NUMA system. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Pavel Emelianov <xemul@openvz.org> 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: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-arm/arch-pnx4008/system.h')
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