Author: rmacklem
Date: Fri Dec 16 00:58:41 2011
New Revision: 228560
URL: http://svn.freebsd.org/changeset/base/228560
Log:
Patch the new NFS server in a manner analagous to r228520 for the
old NFS server, so that it correctly handles a count == 0 argument
for Commit.
PR: kern/118126
MFC after: 2 weeks
Modified:
head/sys/fs/nfsserver/nfs_nfsdport.c
Modified: head/sys/fs/nfsserver/nfs_nfsdport.c
==============================================================================
--- head/sys/fs/nfsserver/nfs_nfsdport.c Fri Dec 16 00:48:53 2011
(r228559)
+++ head/sys/fs/nfsserver/nfs_nfsdport.c Fri Dec 16 00:58:41 2011
(r228560)
@@ -1254,7 +1254,13 @@ nfsvno_fsync(struct vnode *vp, u_int64_t
{
int error = 0;
- if (cnt > MAX_COMMIT_COUNT) {
+ /*
+ * RFC 1813 3.3.21: if count is 0, a flush from offset to the end of
+ * file is done. At this time VOP_FSYNC does not accept offset and
+ * byte count parameters so call VOP_FSYNC the whole file for now.
+ * The same is true for NFSv4: RFC 3530 Sec. 14.2.3.
+ */
+ if (cnt == 0 || cnt > MAX_COMMIT_COUNT) {
/*
* Give up and do the whole thing
*/
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