Commit 4a262d26 authored Aug 06, 2014 by Max Asbock Committed by Linus Torvalds Aug 06, 2014

mm tracing: tell mm_migrate_pages event about numa_misplaced



The mm_migrate_pages trace event reports a reason for the migration,
typically as a symbolic string.  The exception is the reason
MR_NUMA_MISPLACED for which it just displays the numeric value:
mm_migrate_pages: nr_succeeded=1 nr_failed=0 mode=MIGRATE_ASYNC
reason=0x5

This patch makes the output consistent by introducing a string value for
MR_NUMA_MISPLACED.  The event is then reported as: mm_migrate_pages:
nr_succeeded=1 nr_failed=0 mode=MIGRATE_ASYNC reason=numa_misplaced

Signed-off-by: Max Asbock <masbock@linux.vnet.ibm.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent ee814fe2

include/trace/events/migrate.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		{MR_MEMORY_HOTPLUG, "memory_hotplug"}, \
		{MR_SYSCALL, "syscall_or_cpuset"}, \
		{MR_MEMPOLICY_MBIND, "mempolicy_mbind"}, \
		{MR_NUMA_MISPLACED, "numa_misplaced"}, \
		{MR_CMA, "cma"}

		TRACE_EVENT(mm_migrate_pages,