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mm: rename mem_cgroup_migrate to mem_cgroup_replace_page

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After v4.3's commit 0610c25daa ("memcg: fix dirty page migration")
mem_cgroup_migrate() doesn't have much to offer in page migration: convert
migrate_misplaced_transhuge_page() to set_page_memcg() instead.

Then rename mem_cgroup_migrate() to mem_cgroup_replace_page(), since its
remaining callers are replace_page_cache_page() and shmem_replace_page():
both of whom passed lrucare true, so just eliminate that argument.

Signed-off-by: Hugh Dickins <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: "Kirill A. Shutemov" <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Sasha Levin <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Hugh Dickins 2015-11-05 18:49:40 -08:00 • committed by Linus Torvalds
commit 45637bab30
5 changed files with 14 additions and 31 deletions
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5
mm/migrate.c
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@ -30,7 +30,6 @@
#include <linux/mempolicy.h>
#include <linux/vmalloc.h>
#include <linux/security.h>
#include <linux/memcontrol.h>
#include <linux/syscalls.h>
#include <linux/hugetlb.h>
#include <linux/hugetlb_cgroup.h>
@ -1831,8 +1830,8 @@ fail_putback:
}
mlock_migrate_page(new_page, page);
mem_cgroup_migrate(page, new_page, false);
set_page_memcg(new_page, page_memcg(page));
set_page_memcg(page, NULL);
page_remove_rmap(page);
spin_unlock(ptl);