Subject: + mm-compaction-do-not-count-migratepages-when-unnecessary-fix.patch added to -mm tree
To: vbabka@xxxxxxx,mina86@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 12 May 2014 14:40:27 -0700
The patch titled
Subject: mm-compaction-do-not-count-migratepages-when-unnecessary-fix
has been added to the -mm tree. Its filename is
mm-compaction-do-not-count-migratepages-when-unnecessary-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-do-not-count-migratepages-when-unnecessary-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-compaction-do-not-count-migratepages-when-unnecessary-fix.patch
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From: Vlastimil Babka <vbabka@xxxxxxx>
Subject: mm-compaction-do-not-count-migratepages-when-unnecessary-fix
list_for_each is enough for counting the list length. We also avoid
including struct page definition this way.
Suggested-by: Michal Nazarewicz <mina86@xxxxxxxxxx>
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/trace/events/compaction.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff -puN include/trace/events/compaction.h~mm-compaction-do-not-count-migratepages-when-unnecessary-fix include/trace/events/compaction.h
--- a/include/trace/events/compaction.h~mm-compaction-do-not-count-migratepages-when-unnecessary-fix
+++ a/include/trace/events/compaction.h
@@ -7,7 +7,6 @@
#include <linux/types.h>
#include <linux/list.h>
#include <linux/tracepoint.h>
-#include <linux/mm_types.h>
#include <trace/events/gfpflags.h>
DECLARE_EVENT_CLASS(mm_compaction_isolate_template,
@@ -62,7 +61,7 @@ TRACE_EVENT(mm_compaction_migratepages,
TP_fast_assign(
unsigned long nr_failed = 0;
- struct page *page;
+ struct list_head *page_lru;
/*
* migrate_pages() returns either a non-negative number
@@ -73,7 +72,7 @@ TRACE_EVENT(mm_compaction_migratepages,
if (migrate_rc >= 0)
nr_failed = migrate_rc;
else
- list_for_each_entry(page, migratepages, lru)
+ list_for_each(page_lru, migratepages)
nr_failed++;
__entry->nr_migrated = nr_all - nr_failed;
_
Patches currently in -mm which might be from vbabka@xxxxxxx are
mm-compactionc-isolate_freepages_block-small-tuneup.patch
mm-page_alloc-prevent-migrate_reserve-pages-from-being-misplaced.patch
mm-compaction-clean-up-unused-code-lines.patch
mm-compaction-cleanup-isolate_freepages.patch
mm-compaction-cleanup-isolate_freepages-fix.patch
mm-compaction-cleanup-isolate_freepages-fix-2.patch
mm-migration-add-destination-page-freeing-callback.patch
mm-compaction-return-failed-migration-target-pages-back-to-freelist.patch
mm-compaction-add-per-zone-migration-pfn-cache-for-async-compaction.patch
mm-compaction-embed-migration-mode-in-compact_control.patch
mm-compaction-embed-migration-mode-in-compact_control-fix.patch
mm-thp-avoid-excessive-compaction-latency-during-fault.patch
mm-thp-avoid-excessive-compaction-latency-during-fault-fix.patch
mm-compaction-terminate-async-compaction-when-rescheduling.patch
mm-compaction-do-not-count-migratepages-when-unnecessary.patch
mm-compaction-do-not-count-migratepages-when-unnecessary-fix.patch
mm-compaction-avoid-rescanning-pageblocks-in-isolate_freepages.patch
mm-page_alloc-debug_vm-checks-for-free_list-placement-of-cma-and-reserve-pages.patch
mm-page_alloc-debug_vm-checks-for-free_list-placement-of-cma-and-reserve-pages-fix.patch
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