kernel/include/trace/events/migrate.h, branch linux-3.11.y Hosts the 0x221E linux distro kernel. https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-3.11.y 2012-12-11T14:28:35Z mm: migrate: Add a tracepoint for migrate_pages 2012-12-11T14:28:35Z Mel Gorman mgorman@suse.de 2012-10-19T13:07:31Z urn:sha1:7b2a2d4a18fffac3c4872021529b0657896db788 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>