From: Christoph Hellwig <hch@lst.de>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@lst.de>,
Thomas Gleixner <tglx@linutronix.de>,
Mark Gross <mark.gross@intel.com>, Tejun Heo <tj@kernel.org>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-s390 <linux-s390@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/9] timers: provide a "modern" variant of timers
Date: Sun, 21 May 2017 09:00:17 +0200 [thread overview]
Message-ID: <20170521070017.GA13082@lst.de> (raw)
In-Reply-To: <CAK8P3a2ddbr=ck+G+80vGkVQ+L3snWkT1bbj2+1T6UJhm+_mrQ@mail.gmail.com>
On Thu, May 18, 2017 at 10:57:31AM +0200, Arnd Bergmann wrote:
> How expensive would it be to add another field to timer_list and
> just have both pointers?
That would add 4/8 bytes to every structure containing a timer,
so I'd rather avoid it if possible. But one option might be to
inflict this onto users of outdated compilers and use the union
for modern ones.
next prev parent reply other threads:[~2017-05-21 7:00 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-16 11:48 RFC: better timer interface Christoph Hellwig
2017-05-16 11:48 ` [PATCH 1/9] timers: remove the fn and data arguments to call_timer_fn Christoph Hellwig
2017-05-16 11:48 ` [PATCH 2/9] timers: provide a "modern" variant of timers Christoph Hellwig
2017-05-16 19:29 ` Randy Dunlap
2017-05-16 20:03 ` Arnd Bergmann
2017-05-18 8:24 ` Christoph Hellwig
2017-05-18 8:41 ` Christoph Hellwig
2017-05-18 8:57 ` Arnd Bergmann
2017-05-21 7:00 ` Christoph Hellwig [this message]
2017-05-21 12:29 ` Arnd Bergmann
2017-05-21 17:57 ` Thomas Gleixner
2017-05-21 18:23 ` Al Viro
2017-05-19 10:48 ` David Laight
2017-05-21 6:57 ` 'Christoph Hellwig'
2017-05-16 11:48 ` [PATCH 3/9] kthread: remove unused macros Christoph Hellwig
2017-05-17 12:09 ` Petr Mladek
2017-05-18 8:22 ` Christoph Hellwig
2017-05-16 11:48 ` [PATCH 4/9] workqueue: switch to modern timers Christoph Hellwig
2017-05-16 11:48 ` [PATCH 5/9] powerpc/numa: switch topology_timer to modern timer Christoph Hellwig
2017-05-16 11:48 ` [PATCH 6/9] s390: switch topology_timer to a " Christoph Hellwig
2017-05-16 11:48 ` [PATCH 7/9] s390: switch lgr timer " Christoph Hellwig
2017-05-16 11:48 ` [PATCH 8/9] tlclk: switch switchover_timer " Christoph Hellwig
2017-05-16 11:48 ` [PATCH 9/9] timers: remove old timer initialization macros Christoph Hellwig
2017-05-16 19:43 ` Arnd Bergmann
2017-05-18 8:25 ` Christoph Hellwig
2017-05-16 15:45 ` RFC: better timer interface Arnd Bergmann
2017-05-16 15:51 ` Christoph Hellwig
2017-05-16 20:26 ` Arnd Bergmann
2017-05-18 8:27 ` Christoph Hellwig
2017-05-21 17:13 ` Thomas Gleixner
2017-05-21 18:14 ` Thomas Gleixner
2017-05-22 11:26 ` Arnd Bergmann
2017-05-22 19:24 ` Thomas Gleixner
2017-05-23 11:36 ` David Laight
2017-05-23 11:58 ` Thomas Gleixner
2017-05-23 12:51 ` David Laight
2017-05-23 13:02 ` Thomas Gleixner
2017-05-22 13:32 ` Arnd Bergmann
2017-05-22 19:14 ` Thomas Gleixner
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