[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <Pine.LNX.4.64.0709251652050.945@fbirervta.pbzchgretzou.qr>
Date: Tue, 25 Sep 2007 16:52:47 +0200 (CEST)
From: Jan Engelhardt <jengelh@...putergmbh.de>
To: Subbaiah Venkata <kvsnaidu@...naidu.net>
cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH] lib/sort.c, 2.6.22 kernel
On Aug 8 2007 16:19, Subbaiah Venkata wrote:
>
>Hello, I fixed and tested a small bug in lib/sort.c file, heap sort
>function.
>
>The fix avoids unnecessary swap of contents when i is 0 (saves few
>loads and stores), which happens every time sort function is called.
>I felt the fix is worth bringing it to your attention given the
>importance and frequent use of the sort function.
Would you like to resubmit this? Please do ;)
(I am hinting at Documentation/SubmittingPatches too..)
>==================================================================
>diff --git a/lib/sort.c b/lib/sort.c
>index 9615678..6abbaf3 100644
>--- a/lib/sort.c
>+++ b/lib/sort.c
>@@ -67,7 +67,7 @@ void sort(void *base, size_t num, size_t size,
> }
>
> /* sort */
>- for (i = n - size; i >= 0; i -= size) {
>+ for (i = n - size; i > 0; i -= size) {
> swap(base, base + i, size);
> for (r = 0; r * 2 + size < i; r = c) {
> c = r * 2 + size;
>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists