tree be48e588801d386dd6a59d3a1dc1108aa0ed9f59
parent 812f7a310cbf95163438cd5a412cf320576b5146
author Mel Gorman <mgorman@suse.de> 1350639980 +0100
committer Laura Abbott <lauraa@codeaurora.org> 1371576289 -0700

mm: compaction: Move migration fail/success stats to migrate.c

The compact_pages_moved and compact_pagemigrate_failed events are
convenient for determining if compaction is active and to what
degree migration is succeeding but it's at the wrong level. Other
users of migration may also want to know if migration is working
properly and this will be particularly true for any automated
NUMA migration. This patch moves the counters down to migration
with the new events called pgmigrate_success and pgmigrate_fail.
The compact_blocks_moved counter is removed because while it was
useful for debugging initially, it's worthless now as no meaningful
conclusions can be drawn from its value.

Change-Id: I43d66b61a2a6be571ed025213d7f1b9defb1a18f
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Git-commit: 5647bc293ab15f66a7b1cda850c5e9d162a6c7c2
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>