From: Ryan Cumming <ryan@spitfire.gotdns.org>
To: Andrea Arcangeli <andrea@novell.com>
Cc: Stelian Pop <stelian@popies.net>, Hugh Dickins <hugh@veritas.com>,
James R Bruce <bruce@andrew.cmu.edu>,
Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC, 2.6] a simple FIFO implementation
Date: Fri, 17 Sep 2004 15:14:36 -0700 [thread overview]
Message-ID: <200409171514.38316.ryan@spitfire.gotdns.org> (raw)
In-Reply-To: <20040917220039.GD15426@dualathlon.random>
[-- Attachment #1.1: Type: text/plain, Size: 265 bytes --]
On Friday 17 September 2004 15:00, Andrea Arcangeli wrote:
> This is likely a candidate to go in include/linux/kernel.h (maybe under
> the name roundup_pow_of_two to avoid misunderstanding with the much more
> common PAGE_SIZE roundups)
How does this look?
-Ryan
[-- Attachment #1.2: roundup-pow-two.diff --]
[-- Type: text/x-diff, Size: 584 bytes --]
--- include/linux/kernel.h 2004-09-16 06:38:19.000000000 -0700
+++ include/linux/kernel.h 2004-09-17 15:12:20.598844004 -0700
@@ -12,6 +12,7 @@
#include <linux/stddef.h>
#include <linux/types.h>
#include <linux/compiler.h>
+#include <linux/bitops.h>
#include <asm/byteorder.h>
#include <asm/bug.h>
@@ -111,6 +112,10 @@
return r;
}
+static inline unsigned long __attribute_pure__ roundup_pow_of_two(int x)
+{
+ return (1UL << fls(x));
+}
extern int printk_ratelimit(void);
extern int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst);
[-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]
next prev parent reply other threads:[~2004-09-17 22:18 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-13 13:52 [RFC, 2.6] a simple FIFO implementation Stelian Pop
2004-09-15 10:20 ` Stelian Pop
2004-09-15 11:10 ` Tonnerre
2004-09-15 11:25 ` Alan Cox
2004-09-15 13:27 ` Dmitry Torokhov
2004-09-15 14:21 ` Stelian Pop
2004-09-15 22:30 ` Andrew Morton
2004-09-16 6:43 ` Stelian Pop
2004-09-16 7:04 ` Andrew Morton
2004-09-16 10:45 ` Stelian Pop
2004-09-16 13:57 ` Paul Jackson
2004-09-16 14:09 ` Stelian Pop
2004-09-16 15:45 ` Paul Jackson
2004-09-16 15:59 ` Stelian Pop
2004-09-16 15:09 ` Buddy Lucas
2004-09-16 15:29 ` Stelian Pop
2004-09-16 15:51 ` Buddy Lucas
2004-09-16 15:52 ` Stelian Pop
2004-09-16 16:07 ` Buddy Lucas
2004-09-16 18:30 ` Stelian Pop
2004-09-16 22:52 ` Buddy Lucas
2004-09-16 17:00 ` Andrew Morton
2004-09-16 18:09 ` Stelian Pop
2004-09-17 0:18 ` Andrew Morton
2004-09-17 10:24 ` Stelian Pop
2004-09-17 11:28 ` Paul Jackson
2004-09-17 11:44 ` Hugh Dickins
2004-09-17 12:24 ` Stelian Pop
2004-09-17 12:37 ` Duncan Sands
2004-09-17 12:48 ` Stelian Pop
2004-09-17 13:00 ` Duncan Sands
2004-09-17 13:05 ` Stelian Pop
2004-09-17 13:16 ` Duncan Sands
2004-09-17 13:15 ` Andrea Arcangeli
2004-09-17 13:36 ` Stelian Pop
2004-09-17 13:41 ` Andrea Arcangeli
2004-09-17 14:00 ` Stelian Pop
2004-09-17 15:14 ` Andrea Arcangeli
2004-09-17 14:47 ` Paul Jackson
2004-09-17 12:52 ` James R Bruce
2004-09-17 15:48 ` Stelian Pop
2004-09-17 16:01 ` Andrea Arcangeli
2004-09-17 16:14 ` Hugh Dickins
2004-09-17 20:50 ` Stelian Pop
2004-09-17 21:28 ` Andrea Arcangeli
2004-09-17 21:54 ` Ryan Cumming
2004-09-17 22:00 ` Andrea Arcangeli
2004-09-17 22:14 ` Ryan Cumming [this message]
2004-09-17 22:35 ` Andrew Morton
2004-09-18 0:07 ` Ryan Cumming
2004-09-17 22:29 ` Ryan Cumming
2004-09-18 3:41 ` Kyle Moffett
2004-09-18 7:56 ` Ryan Cumming
2004-09-17 22:07 ` Andrew Morton
2004-09-20 15:14 ` Stelian Pop
2004-09-20 18:01 ` Sasha Khapyorsky
2004-09-20 18:22 ` Stelian Pop
2004-09-20 19:00 ` Richard B. Johnson
2004-09-16 15:57 ` Bill Davidsen
2004-09-17 10:25 ` Stelian Pop
[not found] <260353727@toto.iv>
2004-09-17 1:00 ` Peter Chubb
2004-09-17 5:45 ` Chris Friesen
2004-09-17 11:58 ` Anton Blanchard
2004-09-17 10:32 ` Stelian Pop
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