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memcg: page_cache_release not __free_page

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There's nothing wrong with mem_cgroup_charge failure in do_wp_page and
do_anonymous page using __free_page, but it does look odd when nearby code
uses page_cache_release: use that instead (while turning a blind eye to
ancient inconsistencies of page_cache_release versus put_page).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: David Rientjes <rientjes@google.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hirokazu Takahashi <taka@valinux.co.jp>
Cc: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hugh Dickins 2008-03-04 14:29:04 -08:00 committed by Linus Torvalds
parent 427d5416f3
commit 6dbf6d3bb9
1 changed files with 2 additions and 2 deletions
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4
mm/memory.c
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@ -1711,7 +1711,7 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma,
}
return ret;
oom_free_new:
__free_page(new_page);
page_cache_release(new_page);
oom:
if (old_page)
page_cache_release(old_page);
@ -2163,7 +2163,7 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
page_cache_release(page);
goto unlock;
oom_free_page:
__free_page(page);
page_cache_release(page);
oom:
return VM_FAULT_OOM;
}