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    Memory controller: make charging gfp mask aware · e1a1cd59
    Balbir Singh 提交于
    Nick Piggin pointed out that swap cache and page cache addition routines
    could be called from non GFP_KERNEL contexts.  This patch makes the
    charging routine aware of the gfp context.  Charging might fail if the
    cgroup is over it's limit, in which case a suitable error is returned.
    
    This patch was tested on a Powerpc box.  I am still looking at being able
    to test the path, through which allocations happen in non GFP_KERNEL
    contexts.
    
    [kamezawa.hiroyu@jp.fujitsu.com: problem with ZONE_MOVABLE]
    Signed-off-by: NBalbir 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: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
    e1a1cd59
memcontrol.c 14.8 KB