linux-kernel - Re: [RFC PATCH 1/4] sysctl: API extension for handling sysctl

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 for Android: free password hash cracker in your pocket

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

Message-ID: <Ype7skNJzEQ1W96v@casper.infradead.org>
Date:   Wed, 1 Jun 2022 20:19:14 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Alexey Gladkov <legion@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christian Brauner <brauner@...nel.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        Linux Containers <containers@...ts.linux.dev>,
        linux-fsdevel@...r.kernel.org,
        Luis Chamberlain <mcgrof@...nel.org>,
        Vasily Averin <vvs@...tuozzo.com>
Subject: Re: [RFC PATCH 1/4] sysctl: API extension for handling sysctl

On Wed, Jun 01, 2022 at 03:20:29PM +0200, Alexey Gladkov wrote:
> +struct ctl_fops {
> +	int (*open) (struct ctl_context *, struct inode *, struct file *);
> +	int (*release) (struct ctl_context *, struct inode *, struct file *);
> +	ssize_t (*read) (struct ctl_context *, struct file *, char *, size_t *, loff_t *);
> +	ssize_t (*write) (struct ctl_context *, struct file *, char *, size_t *, loff_t *);
> +};

Why not pass the iocb in ->read and ->write?  We're still regretting not
doing that with file_operations.