[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>

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e8158741e8b5c03ff879c948c9adb47e7283035d..eb8c1337d9ba505e874204edb9a0b320e62c2de0 100644 (file)
--- 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);