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mm: migrate: consolidate mem_cgroup_migrate() calls

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Rather than scattering mem_cgroup_migrate() calls all over the place,
have a single call from a safe place where every migration operation
eventually ends up in - migrate_page_copy().

Signed-off-by: Johannes Weiner <[email protected]>
Suggested-by: Hugh Dickins <[email protected]>
Acked-by: Vladimir Davydov <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Cc: Mateusz Guzik <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Johannes Weiner 2016-03-15 14:57:54 -07:00 • committed by Linus Torvalds
commit 74485cf2bc
1 changed files with 2 additions and 7 deletions
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9
mm/migrate.c
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@ -331,8 +331,6 @@ int migrate_page_move_mapping(struct address_space *mapping,
if (PageSwapBacked(page))
SetPageSwapBacked(newpage);
mem_cgroup_migrate(page, newpage);
return MIGRATEPAGE_SUCCESS;
}
@ -428,8 +426,6 @@ int migrate_page_move_mapping(struct address_space *mapping,
}
local_irq_enable();
mem_cgroup_migrate(page, newpage);
return MIGRATEPAGE_SUCCESS;
}
@ -471,8 +467,6 @@ int migrate_huge_page_move_mapping(struct address_space *mapping,
spin_unlock_irq(&mapping->tree_lock);
mem_cgroup_migrate(page, newpage);
return MIGRATEPAGE_SUCCESS;
}
@ -586,6 +580,8 @@ void migrate_page_copy(struct page *newpage, struct page *page)
end_page_writeback(newpage);
copy_page_owner(page, newpage);
mem_cgroup_migrate(page, newpage);
}
/************************************************************
@ -1846,7 +1842,6 @@ fail_putback:
}
mlock_migrate_page(new_page, page);
mem_cgroup_migrate(page, new_page);
page_remove_rmap(page, true);
set_page_owner_migrate_reason(new_page, MR_NUMA_MISPLACED);