nfs41: add range to layoutreturn args

So that callers can specify which range to return.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Tom Haynes <loghyr@primarydata.com>

3 files changed, 7 insertions, 5 deletions

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 3c3ff633dd17..56d4c91a48f3 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2012,11 +2012,11 @@ encode_layoutreturn(struct xdr_stream *xdr,
         p = reserve_space(xdr, 16);
         *p++ = cpu_to_be32(0);          /* reclaim. always 0 for now */
         *p++ = cpu_to_be32(args->layout_type);
-        *p++ = cpu_to_be32(args->iomode);
+        *p++ = cpu_to_be32(args->range.iomode);
         *p = cpu_to_be32(RETURN_FILE);
         p = reserve_space(xdr, 16);
-        p = xdr_encode_hyper(p, 0);
-        p = xdr_encode_hyper(p, NFS4_MAX_UINT64);
+        p = xdr_encode_hyper(p, args->range.offset);
+        p = xdr_encode_hyper(p, args->range.length);
         spin_lock(&args->inode->i_lock);
         encode_nfs4_stateid(xdr, &args->stateid);
         spin_unlock(&args->inode->i_lock);
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 685af4fb39ca..9549b89e494b 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -916,7 +916,9 @@ pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo, nfs4_stateid stateid,
         lrp->args.stateid = stateid;
         lrp->args.layout_type = NFS_SERVER(ino)->pnfs_curr_ld->id;
         lrp->args.inode = ino;
-        lrp->args.iomode = iomode;
+        lrp->args.range.iomode = iomode;
+        lrp->args.range.offset = 0;
+        lrp->args.range.length = NFS4_MAX_UINT64;
         lrp->args.layout = lo;
         lrp->clp = NFS_SERVER(ino)->nfs_client;
         lrp->cred = lo->plh_lc_cred;
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 6400a1e01aa4..363792356d25 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -293,7 +293,7 @@ struct nfs4_layoutreturn_args {
         struct nfs4_sequence_args seq_args;
         struct pnfs_layout_hdr *layout;
         struct inode *inode;
-        enum pnfs_iomode iomode;
+        struct pnfs_layout_range range;
         nfs4_stateid stateid;
         __u32   layout_type;
 };