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authorMel Gorman <mgorman@suse.de>2012-10-19 14:07:31 +0100
committerMel Gorman <mgorman@suse.de>2012-12-11 14:28:35 +0000
commit7b2a2d4a18fffac3c4872021529b0657896db788 (patch)
treea0f05be191f12711a774368f6feb15bcd2eebf1a /mm/memory-failure.c
parent5647bc293ab15f66a7b1cda850c5e9d162a6c7c2 (diff)
downloadlinux-7b2a2d4a18fffac3c4872021529b0657896db788.tar.gz
mm: migrate: Add a tracepoint for migrate_pages
The pgmigrate_success and pgmigrate_fail vmstat counters tells the user about migration activity but not the type or the reason. This patch adds a tracepoint to identify the type of page migration and why the page is being migrated. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com>
Diffstat (limited to 'mm/memory-failure.c')
-rw-r--r--mm/memory-failure.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 6c5899b9034..ddb68a169e4 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1558,7 +1558,8 @@ int soft_offline_page(struct page *page, int flags)
page_is_file_cache(page));
list_add(&page->lru, &pagelist);
ret = migrate_pages(&pagelist, new_page, MPOL_MF_MOVE_ALL,
- false, MIGRATE_SYNC);
+ false, MIGRATE_SYNC,
+ MR_MEMORY_FAILURE);
if (ret) {
putback_lru_pages(&pagelist);
pr_info("soft offline: %#lx: migration failed %d, type %lx\n",