[PATCH 001 of 14] knfsd: Improve the test for cross-device-rename in nfsd

[NeilBrown <neilb@suse.de>]

Just testing the i_sb isn't really enough, at least
the vfsmnt must be the same.  Thanks Al.

Cc: Al Viro <viro@ftp.linux.org.uk>

### Diffstat output
 ./fs/nfsd/vfs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff .prev/fs/nfsd/vfs.c ./fs/nfsd/vfs.c
--- .prev/fs/nfsd/vfs.c	2006-06-27 12:15:18.000000000 +1000
+++ ./fs/nfsd/vfs.c	2006-06-27 12:15:21.000000000 +1000
@@ -1556,7 +1556,7 @@ nfsd_rename(struct svc_rqst *rqstp, stru
 	tdir = tdentry->d_inode;
 
 	err = (rqstp->rq_vers == 2) ? nfserr_acces : nfserr_xdev;
-	if (fdir->i_sb != tdir->i_sb)
+	if (ffhp->fh_export != tfhp->fh_export)
 		goto out;
 
 	err = nfserr_perm;
-
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