mm/compaction: change tracepoint format from decimal to hexadecimal

To check the range that compaction is working, tracepoint print
start/end pfn of zone and start pfn of both scanner with decimal format.
Since we manage all pages in order of 2 and it is well represented by
hexadecimal, this patch change the tracepoint format from decimal to
hexadecimal.  This would improve readability.  For example, it makes us
easily notice whether current scanner try to compact previously
attempted pageblock or not.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h
index c6814b917bdfb17bfaf6a8f096787b49913343a2..1337d9e01e3d3137785921194095eb44690f3644 100644 (file)
--- a/include/trace/events/compaction.h
+++ b/include/trace/events/compaction.h
@@ -104,7 +104,7 @@ TRACE_EVENT(mm_compaction_begin,
                __entry->zone_end = zone_end;
        ),
 
-       TP_printk("zone_start=%lu migrate_start=%lu free_start=%lu zone_end=%lu",
+       TP_printk("zone_start=0x%lx migrate_start=0x%lx free_start=0x%lx zone_end=0x%lx",
                __entry->zone_start,
                __entry->migrate_start,
                __entry->free_start,