linux-kernel - Re: [PATCH -next v7 4/4] mm/zswap: delay the initializaton of zswap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 27 Mar 2023 01:29:09 +0200
From:   Christoph Hellwig <hch@....de>
To:     Liu Shixin <liushixin2@...wei.com>
Cc:     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>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH -next v7 4/4] mm/zswap: delay the initializaton of zswap

> @@ -1480,11 +1500,14 @@ static int __init zswap_debugfs_init(void)
>  /*********************************
>  * module init and exit
>  **********************************/
> -static int __init init_zswap(void)
> +static int zswap_setup(void)
>  {
>  	struct zswap_pool *pool;
>  	int ret;
>  
> +	if (zswap_init_state != ZSWAP_UNINIT)
> +		return 0;

I feel like doing this in zswap_enabled_param_set would be a lot cleaner.
With that we could do a switch on the possible enum values for
zswap_init_state there, and that is a good way to explain the possible
outcomes.