linux-kernel - [PATCH] mm, tracing: Print symbol name for kmem_alloc_node call

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Message-Id: <1577949568-4518-1-git-send-email-sunjunyong@xiaomi.com>
Date:   Thu,  2 Jan 2020 15:19:28 +0800
From:   Junyong Sun <sunjy516@...il.com>
To:     rostedt@...dmis.org, mingo@...hat.com, akpm@...ux-foundation.org,
        joel@...lfernandes.org, changbin.du@...el.com,
        timmurray@...gle.com, sunjunyong@...omi.com
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] mm, tracing: Print symbol name for kmem_alloc_node call_site events

print the call_site ip of kmem_alloc_node using '%pS' to improve
the readability of raw slab trace points.

Signed-off-by: Junyong Sun <sunjunyong@...omi.com>
---
 include/trace/events/kmem.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
index ad7e642b..f65b1f6 100644
--- a/include/trace/events/kmem.h
+++ b/include/trace/events/kmem.h
@@ -88,8 +88,8 @@ DECLARE_EVENT_CLASS(kmem_alloc_node,
 		__entry->node		= node;
 	),
 
-	TP_printk("call_site=%lx ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s node=%d",
-		__entry->call_site,
+	TP_printk("call_site=%pS ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s node=%d",
+		(void *)__entry->call_site,
 		__entry->ptr,
 		__entry->bytes_req,
 		__entry->bytes_alloc,
-- 
2.7.4