summaryrefslogtreecommitdiff
path: root/mm/compaction.c
diff options
context:
space:
mode:
authorKemeng Shi <shikemeng@huaweicloud.com>2023-08-03 12:48:58 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-08-21 23:37:39 +0300
commit16951789008dc0029b1e073fb1c20c1abb4c6504 (patch)
tree8f38ac72850b98c7e031d5957dee962b9a92b8ac /mm/compaction.c
parent3a1060c2615874bd4d66d72dfdabbc48496ef040 (diff)
downloadlinux-16951789008dc0029b1e073fb1c20c1abb4c6504.tar.xz
mm/compaction: set compact_cached_free_pfn correctly in update_pageblock_skip
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>
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index c4d3a3129fd5..6e0c7456026b 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -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) {