From: Nishanth Aravamudan <nacc@us.ibm.com>
To: Willy Tarreau <willy@w.ods.org>
Cc: Davide Libenzi <davidel@xmailserver.org>,
Andrew Morton <akpm@osdl.org>,
Nish Aravamudan <nish.aravamudan@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/3] fixes for overflow in poll(), epoll(), and msec_to_jiffies()
Date: Sun, 25 Sep 2005 13:55:18 -0700 [thread overview]
Message-ID: <20050925205518.GB5079@us.ibm.com> (raw)
In-Reply-To: <20050924193839.GB26197@alpha.home.local>
On 24.09.2005 [21:38:39 +0200], Willy Tarreau wrote:
> Hello,
>
> After the discussion around epoll() timeout, I noticed that the functions used
> to detect the timeout could themselves overflow for some values of HZ.
>
> So I decided to fix them by defining a macro which represents the maximal
> acceptable argument which is guaranteed not to overflow. As an added bonus,
> those functions can now be used in poll() and ep_poll() and remove the divide
> if HZ == 1000, or replace it with a shift if (1000 % HZ) or (HZ % 1000) is a
> power of two.
>
> Patches against 2.6.14-rc2-mm1 sent as replies to this mail.
These look really good, Willy. Thanks for the fixes!
-Nish
next prev parent reply other threads:[~2005-09-25 20:55 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-23 18:13 [patch] sys_epoll_wait() timeout saga Davide Libenzi
2005-09-23 18:24 ` Nish Aravamudan
2005-09-24 4:05 ` Willy Tarreau
2005-09-24 4:44 ` Nish Aravamudan
2005-09-24 6:15 ` Willy Tarreau
2005-09-24 7:33 ` Vadim Lobanov
2005-09-24 7:51 ` Willy Tarreau
2005-09-24 15:10 ` Davide Libenzi
2005-09-24 17:20 ` Willy Tarreau
2005-09-24 18:19 ` Davide Libenzi
2005-09-25 6:05 ` Andrew Morton
2005-09-25 6:20 ` Willy Tarreau
2005-09-25 6:32 ` Andrew Morton
2005-09-25 7:08 ` Vadim Lobanov
2005-09-25 8:03 ` Willy Tarreau
2005-09-24 17:19 ` Nishanth Aravamudan
2005-09-24 18:25 ` Davide Libenzi
2005-09-24 19:38 ` [PATCH 0/3] fixes for overflow in poll(), epoll(), and msec_to_jiffies() Willy Tarreau
2005-09-24 19:44 ` [PATCH 1/3] 2.6.14-rc2-mm1: fixes for overflow msec_to_jiffies() Willy Tarreau
2005-09-29 9:43 ` Andrew Morton
2005-09-29 19:41 ` Willy Tarreau
2005-09-29 19:52 ` Andrew Morton
2005-09-29 20:55 ` Willy Tarreau
2005-10-01 17:39 ` Willy Tarreau
2005-09-24 19:47 ` [PATCH 2/3] 2.6.14-rc2-mm1: fixes for overflow in epoll() Willy Tarreau
2005-09-24 19:52 ` [PATCH 3/3] 2.6.14-rc2-mm1 : fixes for overflow in sys_poll() Willy Tarreau
2005-10-01 20:39 ` Willy Tarreau
2005-09-24 20:08 ` [PATCH 0/3] fixes for overflow in poll(), epoll(), and msec_to_jiffies() Davide Libenzi
2005-09-24 20:21 ` Willy TARREAU
2005-09-25 20:55 ` Nishanth Aravamudan [this message]
2005-09-25 22:06 ` Willy Tarreau
2005-09-24 21:25 ` [patch] sys_epoll_wait() timeout saga Vadim Lobanov
2005-09-24 18:30 ` Willy Tarreau
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