linux-kernel - [PATCH] mm: compaction: show gfp flag names in try_to_compact

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Message-Id: <1551501538-4092-1-git-send-email-laoar.shao@gmail.com>
Date:   Sat,  2 Mar 2019 12:38:57 +0800
From:   Yafang Shao <laoar.shao@...il.com>
To:     vbabka@...e.cz, mhocko@...e.com, jrdr.linux@...il.com
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, shaoyafang@...iglobal.com,
        Yafang Shao <laoar.shao@...il.com>
Subject: [PATCH] mm: compaction: show gfp flag names in try_to_compact_pages tracepoint

show the gfp flag names instead of the gfp_mask could make the trace
more convenient.

Signed-off-by: Yafang Shao <laoar.shao@...il.com>
---
 include/trace/events/compaction.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h
index 6074eff..e66afb818 100644
--- a/include/trace/events/compaction.h
+++ b/include/trace/events/compaction.h
@@ -189,9 +189,9 @@
 		__entry->prio = prio;
 	),
 
-	TP_printk("order=%d gfp_mask=0x%x priority=%d",
+	TP_printk("order=%d gfp_mask=%s priority=%d",
 		__entry->order,
-		__entry->gfp_mask,
+		show_gfp_flags(__entry->gfp_mask),
 		__entry->prio)
 );
 
-- 
1.8.3.1