From 8c6e9229fc1989cf263a6fcd4ff406d7f473f966 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Fri, 16 Apr 2010 09:53:43 -0700
Subject: ceph: add LAZYIO ioctl to mark a file description for lazy
 consistency

Allow an application to mark a file descriptor for lazy file consistency
semantics, allowing buffered reads and writes when multiple clients are
accessing the same file.

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/ioctl.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'fs/ceph/ioctl.h')

diff --git a/fs/ceph/ioctl.h b/fs/ceph/ioctl.h
index 25e4f1a9d059..88451a3b6857 100644
--- a/fs/ceph/ioctl.h
+++ b/fs/ceph/ioctl.h
@@ -37,4 +37,6 @@ struct ceph_ioctl_dataloc {
 #define CEPH_IOC_GET_DATALOC _IOWR(CEPH_IOCTL_MAGIC, 3,	\
 				   struct ceph_ioctl_dataloc)
 
+#define CEPH_IOC_LAZYIO _IO(CEPH_IOCTL_MAGIC, 4)
+
 #endif
-- 
cgit v1.2.3