From 81fdb096dbcedcc3b94c7e47b59362b5214891e2 Mon Sep 17 00:00:00 2001
From: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Date: Fri, 8 Dec 2006 02:41:07 -0800
Subject: [PATCH] dm: ioctl: add noflush suspend

Provide a dm ioctl option to request noflush suspending.  (See next patch for
what this is for.) As the interface is extended, the version number is
incremented.

Other than accepting the new option through the interface, There is no change
to existing behaviour.

Test results:
Confirmed the option is given from user-space correctly.

Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: dm-devel@redhat.com
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 drivers/md/dm.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/md/dm.h')

diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 293d5ce..c307ca9 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -47,6 +47,7 @@
  * Suspend feature flags
  */
 #define DM_SUSPEND_LOCKFS_FLAG		(1 << 0)
+#define DM_SUSPEND_NOFLUSH_FLAG		(1 << 1)
 
 /*
  * List of devices that a metadevice uses and should open/close.
-- 
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