[PATCH] nfsd4: support CLAIM_DELEGATE_CUR

Add OPEN claim type NFS4_OPEN_CLAIM_DELEGATE_CUR to nfsd4_open().

A delegation stateid and a name are provided.  OPEN with O_CREAT is not legal
with this claim type; otherwise, use the NFS4_OPEN_CLAIM_NULL code path to
lookup the filename to be opened.

Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e8158741e8b5..eb8c1337d9ba 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -198,6 +198,11 @@ 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 +225,6 @@ 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);