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    SubjectRe: [PATCH 1/4] memcg: simplify page cache charging.
    On Wed, 14 Dec 2011 16:49:22 +0900
    KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:

    > Because of commit ef6a3c6311, FUSE uses replace_page_cache() instead
    > of add_to_page_cache(). Then, mem_cgroup_cache_charge() is not
    > called against FUSE's pages from splice.

    Speaking of ef6a3c6311 ("mm: add replace_page_cache_page() function"),
    may I pathetically remind people that it's rather inefficient?

    http://lkml.indiana.edu/hypermail/linux/kernel/1109.1/00375.html


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