public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: zippel@linux-m68k.org
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org
Subject: [PATCH 0/4] [RFC] cleanup 64bit divide API
Date: Thu, 13 Mar 2008 01:22:35 +0100	[thread overview]
Message-ID: <20080313002235.351414762@linux-m68k.org> (raw)

Hi,

The primary purpose of these patches is to introduce a signed divide,
which is useful for NTP. While I'm at it I cleaned up the API, so it
should be a little easier to use.
It uses a new header <linux/math64.h> for it instead of using
<asm-generic/div64.h>. asm-generic/div64.h has the problem of an
all-or-nothing approach, so any arch not using it has to implement the
whole API and usually it's enough to provide only one of them.
<linux/math64.h> allows to selectively functions as needed.

In the long term we can first depricate using <asm/div64.h> and even
later do_div() completely.

bye, Roman

-- 


             reply	other threads:[~2008-03-13  1:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-13  0:22 zippel [this message]
2008-03-13  0:22 ` [PATCH 1/4] introduce explicit signed/unsigned 64bit divide zippel
2008-03-13 10:13   ` Geert Uytterhoeven
2008-03-13 14:59     ` Roman Zippel
2008-03-13 20:34       ` Andrew Morton
2008-03-14 17:45         ` Roman Zippel
2008-03-13  0:22 ` [PATCH 2/4] convert a few do_div user zippel
2008-03-18 20:10   ` Jörg-Volker Peetz
2008-03-13  0:22 ` [PATCH 3/4] rename div64_64 to div64_u64 zippel
2008-03-13  0:22 ` [PATCH 4/4] remove div_long_long_rem zippel
2008-03-13  0:22 ` [PATCH 5/4] 2.6.25-rc5-mm1 specifc div64_u64 fixes zippel

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20080313002235.351414762@linux-m68k.org \
    --to=zippel@linux-m68k.org \
    --cc=akpm@linux-foundation.org \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox