Author: will
Date: Thu May 26 16:27:00 2011
New Revision: 222313
URL: http://svn.freebsd.org/changeset/base/222313
Log:
Close a race between libzfs and mountd when updating NFS exports.
- Flush the file descriptor for the new ZFS exports file before
sending a SIGHUP to mountd.
Reviewed by: pjd
Approved by: ken
MFC after: 3 days
Modified:
head/cddl/compat/opensolaris/misc/fsshare.c
Modified: head/cddl/compat/opensolaris/misc/fsshare.c
==============================================================================
--- head/cddl/compat/opensolaris/misc/fsshare.c Thu May 26 15:55:27 2011
(r222312)
+++ head/cddl/compat/opensolaris/misc/fsshare.c Thu May 26 16:27:00 2011
(r222313)
@@ -223,6 +223,7 @@ out:
error = errno;
unlink(tmpfile);
} else {
+ fflush(newfd);
/*
* Send SIGHUP to mountd, but unlock exports file later.
*/
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