linux-kernel - RE: [PATCH] f2fs: change to use rwsem for cp

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: <7f5213fb9b334d1290f019ab8ed6ee71@AcuMS.aculab.com>
Date:   Mon, 23 Nov 2020 17:05:08 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Sahitya Tummala' <stummala@...eaurora.org>,
        Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <yuchao0@...wei.com>,
        "linux-f2fs-devel@...ts.sourceforge.net" 
        <linux-f2fs-devel@...ts.sourceforge.net>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] f2fs: change to use rwsem for cp_mutex

From: Sahitya Tummala
> Sent: 23 November 2020 05:29
> 
> Use rwsem to ensure serialization of the callers and to avoid
> starvation of high priority tasks, when the system is under
> heavy IO workload.

I can't see any read lock requests.

So why the change?

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)