nfsd4: use helper for copying filehandles for replay

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

3 files changed, 14 insertions, 13 deletions

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 326506272258..af66073ed423 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -123,10 +123,8 @@ do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_o
         fh_dup2(current_fh, &resfh);
 
         /* set reply cache */
-        open->op_stateowner->so_replay.rp_openfh_len = resfh.fh_handle.fh_size;
-        memcpy(open->op_stateowner->so_replay.rp_openfh,
-                        &resfh.fh_handle.fh_base, resfh.fh_handle.fh_size);
-
+        fh_copy_shallow(&open->op_stateowner->so_replay.rp_openfh,
+                        &resfh.fh_handle);
         if (!created)
                 status = do_open_permission(rqstp, current_fh, open,
                                             NFSD_MAY_NOP);
@@ -152,10 +150,8 @@ do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_
         memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info));
 
         /* set replay cache */
-        open->op_stateowner->so_replay.rp_openfh_len = current_fh->fh_handle.fh_size;
-        memcpy(open->op_stateowner->so_replay.rp_openfh,
-                &current_fh->fh_handle.fh_base,
-                current_fh->fh_handle.fh_size);
+        fh_copy_shallow(&open->op_stateowner->so_replay.rp_openfh,
+                        &current_fh->fh_handle);
 
         open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) &&
                 (open->op_iattr.ia_size == 0);
@@ -187,9 +183,8 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
         if (status == nfserr_replay_me) {
                 struct nfs4_replay *rp = &open->op_stateowner->so_replay;
                 fh_put(&cstate->current_fh);
-                cstate->current_fh.fh_handle.fh_size = rp->rp_openfh_len;
-                memcpy(&cstate->current_fh.fh_handle.fh_base, rp->rp_openfh,
-                                rp->rp_openfh_len);
+                fh_copy_shallow(&cstate->current_fh.fh_handle,
+                                &rp->rp_openfh);
                 status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
                 if (status)
                         dprintk("nfsd4_open: replay failed"
diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h
index fa317f6c154b..afa19016c4a8 100644
--- a/include/linux/nfsd/nfsfh.h
+++ b/include/linux/nfsd/nfsfh.h
@@ -269,6 +269,13 @@ fh_copy(struct svc_fh *dst, struct svc_fh *src)
         return dst;
 }
 
+static inline void
+fh_copy_shallow(struct knfsd_fh *dst, struct knfsd_fh *src)
+{
+        dst->fh_size = src->fh_size;
+        memcpy(&dst->fh_base, &src->fh_base, src->fh_size);
+}
+
 static __inline__ struct svc_fh *
 fh_init(struct svc_fh *fhp, int maxsize)
 {
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index 128298c0362d..b65b2a6274b0 100644
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -168,8 +168,7 @@ struct nfs4_replay {
         unsigned int            rp_buflen;
         char                    *rp_buf;
         unsigned                intrp_allocated;
-        int                     rp_openfh_len;
-        char                    rp_openfh[NFS4_FHSIZE];
+        struct knfsd_fh         rp_openfh;
         char                    rp_ibuf[NFSD4_REPLAY_ISIZE];
 };