From aa53ed541a1fec78a78d02afc8b042d040cc080d Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Tue, 5 Jun 2007 14:49:03 -0400
Subject: NFS4: on a O_EXCL OPEN make sure SETATTR sets the fields holding the
verifier
The Linux NFS4 client simply skips over the bitmask in an O_EXCL open
call and so it doesn't bother to reset any fields that may be holding
the verifier. This patch has us save the first two words of the bitmask
(which is all the current client has #defines for). The client then
later checks this bitmask and turns on the appropriate flags in the
sattr->ia_verify field for the following SETATTR call.
This patch only currently checks to see if the server used the atime
and mtime slots for the verifier (which is what the Linux server uses
for this). I'm not sure of what other fields the server could
reasonably use, but adding checks for others should be trivial.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
include/linux/nfs4.h | 1 +
include/linux/nfs_xdr.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 7e7f33a38f..8726491de1 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -15,6 +15,7 @@
#include <linux/types.h>
+#define NFS4_BITMAP_SIZE 2
#define NFS4_VERIFIER_SIZE 8
#define NFS4_STATEID_SIZE 16
#define NFS4_FHSIZE 128
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 10c26ed0db..f7100df3a6 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -144,6 +144,7 @@ struct nfs_openres {
nfs4_stateid delegation;
__u32 do_recall;
__u64 maxsize;
+ __u32 attrset[NFS4_BITMAP_SIZE];
};
/*
--
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