From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx164.postini.com [74.125.245.164]) by kanga.kvack.org (Postfix) with SMTP id CB2EA6B00ED for ; Thu, 3 May 2012 10:24:07 -0400 (EDT) From: Venkatraman S Subject: [PATCH v2 05/16] block: Documentation: add sysfs ABI for expedite_dmpg and expedite_swapin Date: Thu, 3 May 2012 19:53:04 +0530 Message-ID: <1336054995-22988-6-git-send-email-svenkatr@ti.com> In-Reply-To: <1336054995-22988-1-git-send-email-svenkatr@ti.com> References: <1336054995-22988-1-git-send-email-svenkatr@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: linux-mmc@vger.kernel.org, cjb@laptop.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-omap@vger.kernel.org Cc: linux-kernel@vger.kernel.org, arnd.bergmann@linaro.org, alex.lemberg@sandisk.com, ilan.smith@sandisk.com, lporzio@micron.com, rmk+kernel@arm.linux.org.uk, Venkatraman S Add description on the usage of expedite_dmpg and expedite_swapin. Signed-off-by: Venkatraman S --- Documentation/ABI/testing/sysfs-block | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block index c1eb41c..0fb9fef 100644 --- a/Documentation/ABI/testing/sysfs-block +++ b/Documentation/ABI/testing/sysfs-block @@ -206,3 +206,15 @@ Description: when a discarded area is read the discard_zeroes_data parameter will be set to one. Otherwise it will be 0 and the result of reading a discarded area is undefined. + +What: /sys/block//queue/expedite_demandpaging +What: /sys/block//queue/expedite_swapin +Date: April 2012 +Contact: Venkatraman S +Description: + For latency improvements, some storage devices could + provide a mechanism for servicing demand paging and + swapin requests in a high priority manner. Setting + these flags to 1 would get the requests marked with + REQ_RW_DMPG or REQ_RW_SWAPIN to be moved to the front + of elevator queue. -- 1.7.10.rc2 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org