nfsd4: implement new 4.1 open reclaim types
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 710b97b..458ebb6 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -366,12 +366,6 @@
switch (open->op_claim_type) {
case NFS4_OPEN_CLAIM_DELEGATE_CUR:
case NFS4_OPEN_CLAIM_NULL:
- /*
- * (1) set CURRENT_FH to the file being opened,
- * creating it if necessary, (2) set open->op_cinfo,
- * (3) set open->op_truncate if the file is to be
- * truncated after opening, (4) do permission checking.
- */
status = do_open_lookup(rqstp, &cstate->current_fh,
open);
if (status)
@@ -379,17 +373,14 @@
break;
case NFS4_OPEN_CLAIM_PREVIOUS:
open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
- /*
- * The CURRENT_FH is already set to the file being
- * opened. (1) set open->op_cinfo, (2) set
- * open->op_truncate if the file is to be truncated
- * after opening, (3) do permission checking.
- */
+ case NFS4_OPEN_CLAIM_FH:
+ case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
status = do_open_fhandle(rqstp, &cstate->current_fh,
open);
if (status)
goto out;
break;
+ case NFS4_OPEN_CLAIM_DELEG_PREV_FH:
case NFS4_OPEN_CLAIM_DELEGATE_PREV:
open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
dprintk("NFSD: unsupported OPEN claim type %d\n",
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 15e0db1..e8c2a3e 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2587,6 +2587,12 @@
return delegstateid(ret);
}
+static bool nfsd4_is_deleg_cur(struct nfsd4_open *open)
+{
+ return open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR ||
+ open->op_claim_type == NFS4_OPEN_CLAIM_DELEG_CUR_FH;
+}
+
static __be32
nfs4_check_deleg(struct nfs4_client *cl, struct nfs4_file *fp, struct nfsd4_open *open,
struct nfs4_delegation **dp)
@@ -2602,7 +2608,7 @@
if (status)
*dp = NULL;
out:
- if (open->op_claim_type != NFS4_OPEN_CLAIM_DELEGATE_CUR)
+ if (!nfsd4_is_deleg_cur(open))
return nfs_ok;
if (status)
return status;
@@ -2879,7 +2885,7 @@
goto out;
} else {
status = nfserr_bad_stateid;
- if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR)
+ if (nfsd4_is_deleg_cur(open))
goto out;
status = nfserr_jukebox;
fp = open->op_file;
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 645a0a9..fdc09a5 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -803,6 +803,19 @@
if ((status = check_filename(open->op_fname.data, open->op_fname.len, nfserr_inval)))
return status;
break;
+ case NFS4_OPEN_CLAIM_FH:
+ case NFS4_OPEN_CLAIM_DELEG_PREV_FH:
+ if (argp->minorversion < 1)
+ goto xdr_error;
+ /* void */
+ break;
+ case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
+ if (argp->minorversion < 1)
+ goto xdr_error;
+ status = nfsd4_decode_stateid(argp, &open->op_delegate_stateid);
+ if (status)
+ return status;
+ break;
default:
goto xdr_error;
}