mm/huge_memory: try to free subpage in swapcache when possible

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Subpages in swapcache won't be freed even if it is the last user of the
page until next time reclaim. It shouldn't hurt indeed, but we could try
to free these pages to save more memory for system.

Link: https://lkml.kernel.org/r/20220704132201.14611-12-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Zach O'Keefe <zokeefe@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Miaohe Lin 2022-07-04 21:21:56 +08:00 • committed by akpm

parent 3ce4fee440

commit 0b175468a0

1 changed files with 1 additions and 1 deletions

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mm/huge_memory.c

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