linux-kernel - [PATCH v3 5/7] x86/tlb: remove comments for tlb_flush

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Date:	Tue,  8 May 2012 22:03:08 +0800
From:	Alex Shi <alex.shi@...el.com>
To:	mgorman@...e.de, npiggin@...il.com, tglx@...utronix.de,
	mingo@...hat.com, hpa@...or.com, arnd@...db.de,
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Cc:	jeremy@...p.org, gregkh@...uxfoundation.org, glommer@...hat.com,
	riel@...hat.com, luto@....edu, alex.shi@...el.com, avi@...hat.com,
	len.brown@...el.com, dhowells@...hat.com, fenghua.yu@...el.com,
	borislav.petkov@....com, yinghai@...nel.org, ak@...ux.intel.com,
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	linux-kernel@...r.kernel.org
Subject: [PATCH v3 5/7] x86/tlb: remove comments for tlb_flush_range implement suggestion

Thanks to this comments that inspired me using invlpg to replace cr3
rewrite.
Now, it is time to remove from code to avoid reader confusing.

Signed-off-by: Alex Shi <alex.shi@...el.com>
---
 arch/x86/include/asm/tlbflush.h |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index ec30dfb..51f8b1c 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -81,10 +81,6 @@ static inline void __flush_tlb_one(unsigned long addr)
  *
  * ..but the i386 has somewhat limited tlb flushing capabilities,
  * and page-granular flushes are available only on i486 and up.
- *
- * x86-64 can only flush individual pages or full VMs. For a range flush
- * we always do the full VM. Might be worth trying if for a small
- * range a few INVLPGs in a row are a win.
  */
 
 #ifndef CONFIG_SMP
-- 
1.7.5.4

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