[RFC PATCH 4/4] makedumpfile: Add main routine of cyclic processing.

HATAYAMA Daisuke d.hatayama at jp.fujitsu.com
Mon Jun 4 00:42:12 EDT 2012


From: Atsushi Kumagai <kumagai-atsushi at mxc.nes.nec.co.jp>
Subject: [RFC PATCH 4/4] makedumpfile: Add main routine of cyclic processing.
Date: Thu, 31 May 2012 13:56:54 +0900

> +	/*
> +	 * Write pages and bitmap cyclically.
> +	 */
> +	for (info->split_start_pfn = 0, info->split_end_pfn = PFN_CYCLIC;
> +	     info->split_end_pfn <= info->max_mapnr;
> +	     info->split_start_pfn += PFN_CYCLIC, info->split_end_pfn += PFN_CYCLIC) {

The cyclic processing is orthogonal to the splitting feature. The
feature of splitting a single vmcore into multiple dumpfiles is an
important feature on large system to reduce dump generation time. They
should exist together.

Thanks.
HATAYAMA, Daisuke




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