From: "Eric W. Biederman" <ebiederm@xmission.com>
To: Waiman Long <Waiman.Long@hp.com>,
Andrew Morton <akpm@linux-foundation.org>,
Nicolas Dichtel <nicolas.dichtel@6wind.com>,
Al Viro <viro@zeniv.linux.org.uk>,
Alexey Dobriyan <adobriyan@gmail.com>
Cc: linux-kernel@vger.kernel.org,
Scott J Norton <scott.norton@hp.com>,
Douglas Hatch <doug.hatch@hp.com>
Subject: Re: [PATCH] proc: change proc_subdir_lock to a rwlock
Date: Wed, 29 Jul 2015 17:21:10 -0500 [thread overview]
Message-ID: <DDAFF52F-3277-4645-9DA9-62C388DA445C@xmission.com> (raw)
In-Reply-To: <1438201199-2809-1-git-send-email-Waiman.Long@hp.com>
Two quick questions.
- What motivates this work? Are you seeing lots of
parallel reads on proc?
- Why not rcu? Additions and removal of proc generic
files is very rare. Conversion to rcu for reads should
perform better and not take much more work.
Eric
next prev parent reply other threads:[~2015-07-29 22:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-29 20:19 Waiman Long
2015-07-29 22:21 ` Eric W. Biederman [this message]
2015-07-30 10:04 ` Alexey Dobriyan
2015-07-31 2:16 ` Waiman Long
2015-07-31 2:53 ` Waiman Long
2015-08-03 18:03 ` Eric W. Biederman
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