[PATCH v2] makedumpfile: Exclude unnecessary hugepages.
Baoquan He
bhe at redhat.com
Wed Jul 2 01:26:54 PDT 2014
On 06/17/14 at 02:32am, Atsushi Kumagai wrote:
> +static void
> +setup_page_is_hugepage(void)
> +{
> + if (NUMBER(PG_head) != NOT_FOUND_NUMBER) {
> + if (NUMBER(PG_tail) == NOT_FOUND_NUMBER) {
> + /*
> + * If PG_tail is not explicitly saved, then assume
> + * that it immediately follows PG_head.
> + */
> + NUMBER(PG_tail) = NUMBER(PG_head) + 1;
> + }
> + } else if ((NUMBER(PG_compound) != NOT_FOUND_NUMBER)
> + && (info->dump_level & DL_EXCLUDE_USER_DATA)) {
Hi,
I may not understand hugepage well. I am wondering why hugepage
filtering can't be done if PG_compound is available.
> + MSG("Compound page bit could not be determined: ");
> + MSG("huge pages will NOT be filtered.\n");
> + }
> +}
> +
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