4 files changed, 29 insertions, 2 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 3cc75445a68d..fee2d14b158b 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -943,6 +943,22 @@ static struct nfs4_state *nfs4_open_delegated(struct inode *inode, int flags, st
 }
 
 /*
+ * on an EXCLUSIVE create, the server should send back a bitmask with FATTR4-*
+ * fields corresponding to attributes that were used to store the verifier.
+ * Make sure we clobber those fields in the later setattr call
+ */
+static inline void nfs4_exclusive_attrset(struct nfs4_opendata *opendata, struct iattr *sattr)
+{
+        if ((opendata->o_res.attrset[1] & FATTR4_WORD1_TIME_ACCESS) &&
+            !(sattr->ia_valid & ATTR_ATIME_SET))
+                sattr->ia_valid |= ATTR_ATIME;
+
+        if ((opendata->o_res.attrset[1] & FATTR4_WORD1_TIME_MODIFY) &&
+            !(sattr->ia_valid & ATTR_MTIME_SET))
+                sattr->ia_valid |= ATTR_MTIME;
+}
+
+/*
  * Returns a referenced nfs4_state
  */
 static int _nfs4_do_open(struct inode *dir, struct path *path, int flags, struct iattr *sattr, struct rpc_cred *cred, struct nfs4_state **res)
@@ -973,6 +989,9 @@ static int _nfs4_do_open(struct inode *dir, struct path *path, int flags, struct
         if (status != 0)
                 goto err_opendata_free;
 
+        if (opendata->o_arg.open_flags & O_EXCL)
+                nfs4_exclusive_attrset(opendata, sattr);
+
         status = -ENOMEM;
         state = nfs4_opendata_to_nfs4_state(opendata);
         if (state == NULL)
@@ -1784,6 +1803,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
                 status = nfs4_do_setattr(state->inode, &fattr, sattr, state);
                 if (status == 0)
                         nfs_setattr_update_inode(state->inode, sattr);
+                nfs_post_op_update_inode(state->inode, &fattr);
         }
         if (status == 0 && (nd->flags & LOOKUP_OPEN) != 0)
                 status = nfs4_intent_set_file(nd, &path, state);
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 8003c91ccb9a..1fcca516e6ee 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -3269,7 +3269,7 @@ static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
 {
         __be32 *p;
-        uint32_t bmlen;
+        uint32_t savewords, bmlen, i;
         int status;
 
         status = decode_op_hdr(xdr, OP_OPEN);
@@ -3287,7 +3287,12 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
                 goto xdr_error;
 
         READ_BUF(bmlen << 2);
-        p += bmlen;
+        savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
+        for (i = 0; i < savewords; ++i)
+                READ32(res->attrset[i]);
+        for (; i < NFS4_BITMAP_SIZE; i++)
+                res->attrset[i] = 0;
+
         return decode_delegation(xdr, res);
 xdr_error:
         dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen);
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 7e7f33a38fc0..8726491de154 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 10c26ed0db71..f7100df3a690 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];
 };
 
 /*