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authorMel Gorman <mgorman@techsingularity.net>2019-03-06 02:44:32 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-06 08:07:16 +0300
commit566e54e113eb2b669f9300db2c2df400cbb06646 (patch)
treeb6ad6208a5325171a4dbc85d11b36ee8d2ed5787 /mm/internal.h
parentc5943b9c5312d4fa23175ff146e901b865e4a60a (diff)
downloadlinux-566e54e113eb2b669f9300db2c2df400cbb06646.tar.xz
mm, compaction: remove last_migrated_pfn from compact_control
The last_migrated_pfn field is a bit dubious as to whether it really helps but either way, the information from it can be inferred without increasing the size of compact_control so remove the field. Link: http://lkml.kernel.org/r/20190118175136.31341-4-mgorman@techsingularity.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: David Rientjes <rientjes@google.com> Cc: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/internal.h')
-rw-r--r--mm/internal.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 867af5425432..f40d06d70683 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -188,7 +188,6 @@ struct compact_control {
unsigned int nr_migratepages; /* Number of pages to migrate */
unsigned long free_pfn; /* isolate_freepages search base */
unsigned long migrate_pfn; /* isolate_migratepages search base */
- unsigned long last_migrated_pfn;/* Not yet flushed page being freed */
struct zone *zone;
unsigned long total_migrate_scanned;
unsigned long total_free_scanned;