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(parent: d8cebbc) | patch
lib: vsprintf: optimize division by 10000
authorGeorge Spelvin <linux@horizon.com>
Fri, 7 Sep 2012 00:24:28 +0000 (10:24 +1000)
committerStephen Rothwell <sfr@canb.auug.org.au>
Fri, 7 Sep 2012 05:36:26 +0000 (15:36 +1000)
commit05d3351aff92ea8985d402b5499d0486c7647708
treed2491e3289367c2a6d9259e46a450f83d5e77bcdtree | snapshot
parentd8cebbc2da79f8e298bb56b67d09f8d4afed2589commit | 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