NFS: Don't zap caches on fallocate()

This patch adds a GETATTR to the end of ALLOCATE and DEALLOCATE
operations so we can set the updated inode size and change attribute
directly.  DEALLOCATE will still need to release pagecache pages, so
nfs42_proc_deallocate() now calls truncate_pagecache_range() before
contacting the server.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 3d88908fd140..93ab6071bbe9 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1273,11 +1273,15 @@ struct nfs42_falloc_args {
         nfs4_stateid                     falloc_stateid;
         u64                              falloc_offset;
         u64                              falloc_length;
+        const u32                       *falloc_bitmask;
 };
 
 struct nfs42_falloc_res {
         struct nfs4_sequence_res        seq_res;
         unsigned int                    status;
+
+        struct nfs_fattr                *falloc_fattr;
+        const struct nfs_server         *falloc_server;
 };
 
 struct nfs42_seek_args {