From: Xiubo Li <lixiubo@cmss.chinamobile.com>
Date: Wed, 26 Jul 2017 03:21:03 +0000 (+0800)
Subject: librbd: add LIBRBD_SUPPORTS_WRITESAME support
X-Git-Tag: v12.1.2~29^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=6c9bab3f7418efff0400017069bc45c350ced890;p=ceph.git

librbd: add LIBRBD_SUPPORTS_WRITESAME support

This will be very helpful when release ceph package(like RPM) with
backporting writesame feature to previous version.

Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com>
---

diff --git a/src/include/rbd/librbd.h b/src/include/rbd/librbd.h
index dca8f4237041..ac6ddc7f007c 100644
--- a/src/include/rbd/librbd.h
+++ b/src/include/rbd/librbd.h
@@ -45,6 +45,7 @@ extern "C" {
 #define LIBRBD_SUPPORTS_INVALIDATE 1
 #define LIBRBD_SUPPORTS_IOVEC 1
 #define LIBRBD_SUPPORTS_WATCH 0
+#define LIBRBD_SUPPORTS_WRITESAME 1
 
 #if __GNUC__ >= 4
   #define CEPH_RBD_API    __attribute__ ((visibility ("default")))