From: Sage Weil <sage@newdream.net>
Date: Mon, 7 Apr 2008 23:40:52 +0000 (-0700)
Subject: kclient: try to carry CAP_EXCL when we buffer data, even if file is now closed
X-Git-Tag: v0.3~239^2~79
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=b70ebdf607f9df79f441d4b8466b34fba32bf230;p=ceph.git

kclient: try to carry CAP_EXCL when we buffer data, even if file is now closed
---

diff --git a/src/kernel/super.h b/src/kernel/super.h
index 1ff8093b5013f..d0b83cf841c4d 100644
--- a/src/kernel/super.h
+++ b/src/kernel/super.h
@@ -277,7 +277,10 @@ static inline int __ceph_caps_file_wanted(struct ceph_inode_info *ci)
 
 static inline int __ceph_caps_wanted(struct ceph_inode_info *ci)
 {
-	return __ceph_caps_file_wanted(ci) | __ceph_caps_used(ci);
+	int w = __ceph_caps_file_wanted(ci) | __ceph_caps_used(ci);
+	if (w & CEPH_CAP_WRBUFFER)
+		w |= CEPH_CAP_EXCL;  /* want EXCL if we have dirty data */
+	return w;
 }
 
 static inline int ceph_file_mode(int flags)