1 files changed, 22 insertions, 4 deletions

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e8158741e8b5..d71f14517b9c 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -45,6 +45,7 @@
 #include <linux/param.h>
 #include <linux/major.h>
 #include <linux/slab.h>
+#include <linux/file.h>
 
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
@@ -198,6 +199,11 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
         if (status)
                 goto out;
         switch (open->op_claim_type) {
+                case NFS4_OPEN_CLAIM_DELEGATE_CUR:
+                        status = nfserr_inval;
+                        if (open->op_create)
+                                goto out;
+                        /* fall through */
                 case NFS4_OPEN_CLAIM_NULL:
                         /*
                          * (1) set CURRENT_FH to the file being opened,
@@ -220,7 +226,6 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
                         if (status)
                                 goto out;
                         break;
-                case NFS4_OPEN_CLAIM_DELEGATE_CUR:
                 case NFS4_OPEN_CLAIM_DELEGATE_PREV:
                         printk("NFSD: unsupported OPEN claim type %d\n",
                                 open->op_claim_type);
@@ -473,26 +478,27 @@ static inline int
 nfsd4_read(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_read *read)
 {
         int status;
-        struct file *filp = NULL;
 
         /* no need to check permission - this will be done in nfsd_read() */
 
+        read->rd_filp = NULL;
         if (read->rd_offset >= OFFSET_MAX)
                 return nfserr_inval;
 
         nfs4_lock_state();
         /* check stateid */
         if ((status = nfs4_preprocess_stateid_op(current_fh, &read->rd_stateid,
-                                        CHECK_FH | RD_STATE, &filp))) {
+                                CHECK_FH | RD_STATE, &read->rd_filp))) {
                 dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
                 goto out;
         }
+        if (read->rd_filp)
+                get_file(read->rd_filp);
         status = nfs_ok;
 out:
         nfs4_unlock_state();
         read->rd_rqstp = rqstp;
         read->rd_fhp = current_fh;
-        read->rd_filp = filp;
         return status;
 }
 
@@ -532,6 +538,8 @@ nfsd4_remove(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_rem
 {
         int status;
 
+        if (nfs4_in_grace())
+                return nfserr_grace;
         status = nfsd_unlink(rqstp, current_fh, 0, remove->rm_name, remove->rm_namelen);
         if (status == nfserr_symlink)
                 return nfserr_notdir;
@@ -550,6 +558,9 @@ nfsd4_rename(struct svc_rqst *rqstp, struct svc_fh *current_fh,
 
         if (!save_fh->fh_dentry)
                 return status;
+        if (nfs4_in_grace() && !(save_fh->fh_export->ex_flags
+                                        & NFSEXP_NOSUBTREECHECK))
+                return nfserr_grace;
         status = nfsd_rename(rqstp, save_fh, rename->rn_sname,
                              rename->rn_snamelen, current_fh,
                              rename->rn_tname, rename->rn_tnamelen);
@@ -624,6 +635,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_writ
                 dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
                 goto out;
         }
+        if (filp)
+                get_file(filp);
         nfs4_unlock_state();
 
         write->wr_bytes_written = write->wr_buflen;
@@ -635,6 +648,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_writ
         status =  nfsd_write(rqstp, current_fh, filp, write->wr_offset,
                         write->wr_vec, write->wr_vlen, write->wr_buflen,
                         &write->wr_how_written);
+        if (filp)
+                fput(filp);
 
         if (status == nfserr_symlink)
                 status = nfserr_inval;
@@ -923,6 +938,9 @@ encode_op:
                         nfs4_put_stateowner(replay_owner);
                         replay_owner = NULL;
                 }
+                /* XXX Ugh, we need to get rid of this kind of special case: */
+                if (op->opnum == OP_READ && op->u.read.rd_filp)
+                        fput(op->u.read.rd_filp);
         }
 
 out: