From: Atsushi Kumagai <[email protected]> Date: Fri, 24 Aug 2012 10:16:52 +0900 Subject: [PATCH 11/16] [PATCH v3 11/12] Remove waste calculation to improve performance.
This patch adds check whether each page correspond to target memory region or not into filtering logic. Signed-off-by: Atsushi Kumagai <[email protected]> --- makedumpfile.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/makedumpfile.c b/makedumpfile.c index cc90d39..879f73a 100644 --- a/makedumpfile.c +++ b/makedumpfile.c @@ -3751,6 +3751,12 @@ __exclude_unnecessary_pages(unsigned long mem_map, for (pfn = pfn_start; pfn < pfn_end; pfn++, mem_map += SIZE(page)) { /* + * If this pfn doesn't belong to target region, skip this pfn. + */ + if (info->flag_cyclic && !is_cyclic_region(pfn)) + continue; + + /* * Exclude the memory hole. */ if (is_xen_memory()) { -- 1.7.9.2 _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
