NFSv4.1: file layout must consider pg_bsize for coalescing

Otherwise we end up overflowing the rpc buffer size on the receive end.

Signed-off-by: Benny Halevy <benny@tonian.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 3a34e80ae92f..25311b3bedf8 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -92,6 +92,9 @@ extern	int nfs_pageio_add_request(struct nfs_pageio_descriptor *,
                                    struct nfs_page *);
 extern  void nfs_pageio_complete(struct nfs_pageio_descriptor *desc);
 extern  void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *, pgoff_t);
+extern bool nfs_generic_pg_test(struct nfs_pageio_descriptor *desc,
+                                struct nfs_page *prev,
+                                struct nfs_page *req);
 extern  int nfs_wait_on_request(struct nfs_page *);
 extern  void nfs_unlock_request(struct nfs_page *req);
 extern  int nfs_set_page_tag_locked(struct nfs_page *req);