linux-kernel - Re: [PATCH] fanotify: Fix sys_fanotify

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Date:   Tue, 1 Dec 2020 10:48:10 +0100
From:   Jan Kara <jack@...e.cz>
To:     Brian Gerst <brgerst@...il.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        Andy Lutomirski <luto@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>, Jan Kara <jack@...e.cz>,
        Paweł Jasiak <pawel@...iak.xyz>
Subject: Re: [PATCH] fanotify: Fix sys_fanotify_mark() on native x86-32

On Mon 30-11-20 17:30:59, Brian Gerst wrote:
> Commit 121b32a58a3a converted native x86-32 which take 64-bit arguments to
> use the compat handlers to allow conversion to passing args via pt_regs.
> sys_fanotify_mark() was however missed, as it has a general compat handler.
> Add a config option that will use the syscall wrapper that takes the split
> args for native 32-bit.
> 
> Reported-by: Paweł Jasiak <pawel@...iak.xyz>
> Fixes: 121b32a58a3a ("x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments")
> Signed-off-by: Brian Gerst <brgerst@...il.com>

Thanks for the patch! It looks good to me. Feel free to add:

Acked-by: Jan Kara <jack@...e.cz>

I assume you plan to push this via x86 tree given the changes are mostly
there, don't you?

								Honza
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR