linux-kernel - Re: [PATCH] iomap: Fix direct I/O write consistency check

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] [day] [month] [year] [list]

Message-ID: <20200907070701.GA27019@infradead.org>
Date:   Mon, 7 Sep 2020 08:07:01 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Andreas Gruenbacher <agruenba@...hat.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, cluster-devel@...hat.com
Subject: Re: [PATCH] iomap: Fix direct I/O write consistency check

On Thu, Sep 03, 2020 at 06:56:32PM +0200, Andreas Gruenbacher wrote:
> When a direct I/O write falls back to buffered I/O entirely, dio->size
> will be 0 in iomap_dio_complete.  Function invalidate_inode_pages2_range
> will try to invalidate the rest of the address space.  If there are any
> dirty pages in that range, the write will fail and a "Page cache
> invalidation failure on direct I/O" error will be logged.

Looks good,

Reviewed-by: Christoph Hellwig <hch@....de>