linux-kernel - Re: [PATCH] dax: Fix missed PMD wakeups

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]

Message-ID: <20190703121743.GH1729@bombadil.infradead.org>
Date:   Wed, 3 Jul 2019 05:17:43 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     linux-fsdevel@...r.kernel.org, Jan Kara <jack@...e.cz>,
        Boaz Harrosh <openosd@...il.com>, stable@...r.kernel.org,
        Robert Barror <robert.barror@...el.com>,
        Seema Pandit <seema.pandit@...el.com>,
        linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dax: Fix missed PMD wakeups

On Wed, Jul 03, 2019 at 12:24:54AM -0700, Dan Williams wrote:
> This fix may increase waitqueue contention, but a fix for that is saved
> for a larger rework. In the meantime this fix is suitable for -stable
> backports.

I think this is too big for what it is; just the two-line patch to stop
incorporating the low bits of the PTE would be more appropriate.