From: Eric Wong <normalperson@yhbt.net>
To: Davide Libenzi <davidel@xmailserver.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] epoll: preserve ordering of events from ovflist
Date: Mon, 4 Mar 2013 03:05:00 +0000 [thread overview]
Message-ID: <20130304030500.GA29365@dcvr.yhbt.net> (raw)
In-Reply-To: <20130302072508.GA19297@dcvr.yhbt.net>
Eric Wong <normalperson@yhbt.net> wrote:
> Events arriving in ovflist are stored in LIFO order, so
> we should account for that when inserting them into rddlist.
Fwiw, I noticed this oddity because I wanted to start tracing epitem
readiness (to detect when my application is not calling epoll_wait()
fast enough).
I have two more patches coming on top of this one:
Eric Wong (2):
epoll: hoist out duplicated wake up logic
epoll: add tracepoints for epitem enqueue/dequeue
fs/eventpoll.c | 62 +++++++++++----------
include/linux/eventpoll.h | 8 +++
include/trace/events/eventpoll.h | 113 +++++++++++++++++++++++++++++++++++++++
3 files changed, 155 insertions(+), 28 deletions(-)
next prev parent reply other threads:[~2013-03-04 3:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-02 7:25 Eric Wong
2013-03-04 3:05 ` Eric Wong [this message]
2013-03-04 3:06 ` [PATCH 1/2] epoll: hoist out duplicated wake up logic Eric Wong
2013-03-04 3:06 ` [PATCH 2/2] epoll: add tracepoints for epitem enqueue/dequeue Eric Wong
2013-03-08 1:32 ` Eric Wong
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