linux-kernel - [PATCH] mm: vmstat: Do not display stats for TLB flushes unless debugging

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Date:	Thu, 16 Jan 2014 11:12:05 +0000
From:	Mel Gorman <mgorman@...e.de>
To:	Alex Shi <alex.shi@...aro.org>, Ingo Molnar <mingo@...nel.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Fengguang Wu <fengguang.wu@...el.com>,
	Rik van Riel <riel@...hat.com>,
	H Peter Anvin <hpa@...or.com>, Linux-X86 <x86@...nel.org>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] mm: vmstat: Do not display stats for TLB flushes unless
 debugging

The patch "x86: mm: Account for TLB flushes only when debugging" removed
vmstat counters related to TLB flushes unless CONFIG_DEBUG_TLBFLUSH was
set from the vm_event_item enum but not the vmstat_text text.

Signed-off-by: Mel Gorman <mgorman@...e.de>
---
 mm/vmstat.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 7249614..def5dd2 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -851,12 +851,14 @@ const char * const vmstat_text[] = {
 	"thp_zero_page_alloc",
 	"thp_zero_page_alloc_failed",
 #endif
+#ifdef CONFIG_DEBUG_TLBFLUSH
 #ifdef CONFIG_SMP
 	"nr_tlb_remote_flush",
 	"nr_tlb_remote_flush_received",
-#endif
+#endif /* CONFIG_SMP */
 	"nr_tlb_local_flush_all",
 	"nr_tlb_local_flush_one",
+#endif /* CONFIG_DEBUG_TLBFLUSH */
 
 #endif /* CONFIG_VM_EVENTS_COUNTERS */
 };
--
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