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(parent: b6941ca) | patch
lib: vsprintf: optimize division by 10000
authorGeorge Spelvin <linux@horizon.com>
Wed, 26 Sep 2012 01:34:17 +0000 (11:34 +1000)
committerStephen Rothwell <sfr@canb.auug.org.au>
Thu, 27 Sep 2012 07:27:35 +0000 (17:27 +1000)
commit32035363fc7bd01e8c8ee9737ff44e646c45a0c9
tree9884309e3ad4cab4237d03ecf7da9cf40370e46btree | snapshot
parentb6941ca18081f9015bf44be3b935796289423053commit | diff
lib: vsprintf: optimize division by 10000

The same multiply-by-inverse technique can be used to convert division by
10000 to a 32x32->64-bit multiply.

Signed-off-by: George Spelvin <linux@horizon.com>
Cc: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
lib/vsprintf.c diff | blob | history
Linux kernel for KaRo TX COM modules