Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2024-12-29 09:12:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

mm/compaction: set compact_cached_free_pfn correctly in update_pageblock_skip

Browse Source 
Patch series "Fixes and cleanups to compaction", v2.

This series contains random fixes and cleanups to free page isolation in
compaction.  This is based on another compact series[1].  More details can
be found in respective patches.


This patch (of 4):

We will set skip to page block of block_start_pfn, it's more reasonable to
set compact_cached_free_pfn to page block before the block_start_pfn.

Link: https://lkml.kernel.org/r/20230803094901.2915942-1-shikemeng@huaweicloud.com
Link: https://lkml.kernel.org/r/20230803094901.2915942-2-shikemeng@huaweicloud.com
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Kemeng Shi <shikemeng@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kemeng Shi 2023-08-03 17:48:58 +08:00 committed by Andrew Morton
parent 3a1060c261
commit 1695178900
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
mm/compaction.c
View File

@ -1717,7 +1717,8 @@ static void isolate_freepages(struct compact_control *cc)
/* Update the skip hint if the full pageblock was scanned */
if (isolate_start_pfn == block_end_pfn)
update_pageblock_skip(cc, page, block_start_pfn);
update_pageblock_skip(cc, page, block_start_pfn -
pageblock_nr_pages);
/* Are enough freepages isolated? */
if (cc->nr_freepages >= cc->nr_migratepages) {