linux-kernel - [PATCH -next v7 0/4] Delay the initialization of zswap

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Message-ID: <20230325071420.2246461-1-liushixin2@huawei.com>
Date:   Sat, 25 Mar 2023 15:14:16 +0800
From:   Liu Shixin <liushixin2@...wei.com>
To:     Seth Jennings <sjenning@...hat.com>,
        Dan Streetman <ddstreet@...e.org>,
        Vitaly Wool <vitaly.wool@...sulko.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Christoph Hellwig <hch@....de>
CC:     <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
        Liu Shixin <liushixin2@...wei.com>
Subject: [PATCH -next v7 0/4] Delay the initialization of zswap

In the initialization of zswap, about 18MB memory will be allocated for
zswap_pool. Since some users may not use zswap, the zswap_pool is wasted.
Save memory by delaying the initialization of zswap until enabled.

v6->v7: Add two new patch[1,3] to cleanup the code. And cover zswap_init_*
	parameter by zswap_init_lock to protect against conflicts.
v5->v6: Simplify the code and delete the patches about frontswap suggested
	by Christoph.

Liu Shixin (4):
  mm/zswap: remove zswap_entry_cache_{create,destroy} helper function
  mm/zswap: skip invalid or unchanged parameter
  mm/zswap: replace zswap_init_{started/failed} with zswap_init_state
  mm/zswap: delay the initializaton of zswap

 mm/zswap.c | 94 +++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 61 insertions(+), 33 deletions(-)

-- 
2.25.1