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From: Liu Yuan <namei.unix@gmail.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, jaxboe@fusionio.com,
        akpm@linux-foundation.org, fengguang.wu@intel.com
Subject: [RFC PATCH 1/5] x86/Kconfig: Add Page Cache Accounting entry
Date: Wed,  2 Mar 2011 16:38:06 +0800
Message-Id: <1299055090-23976-1-git-send-email-namei.unix@gmail.com>
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From: Liu Yuan <tailai.ly@taobao.com>

Signed-off-by: Liu Yuan <tailai.ly@taobao.com>
---
 arch/x86/Kconfig.debug |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 615e188..f29e32d 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -304,4 +304,13 @@ config DEBUG_STRICT_USER_COPY_CHECKS
 
 	  If unsure, or if you run an older (pre 4.4) gcc, say N.
 
+config PAGE_CACHE_ACCT
+	bool "Page cache accounting"
+	---help---
+	  Enabling this options to account for page cache hit/missed number of
+	  times. This would allow user space applications get better knowledge
+	  of underlying page cache system by reading virtual file. The statitics
+	  per partition are collected.
+
+	  If unsure, say N.
 endmenu
-- 
1.7.0.4

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