Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...

[pandora-kernel.git] / fs / nfs / pnfs.h

diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index af3967a..96bf4e6 100644 (file)
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -87,7 +87,7 @@ struct pnfs_layoutdriver_type {
        void (*free_lseg) (struct pnfs_layout_segment *lseg);
 
        /* test for nfs page cache coalescing */
-       int (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *);
+       bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *);
 
        /* Returns true if layoutdriver wants to divert this request to
         * driver's commit routine.
@@ -104,6 +104,14 @@ struct pnfs_layoutdriver_type {
        enum pnfs_try_status (*write_pagelist) (struct nfs_write_data *nfs_data, int how);
 
        void (*free_deviceid_node) (struct nfs4_deviceid_node *);
+
+       void (*encode_layoutreturn) (struct pnfs_layout_hdr *layoutid,
+                                    struct xdr_stream *xdr,
+                                    const struct nfs4_layoutreturn_args *args);
+
+       void (*encode_layoutcommit) (struct pnfs_layout_hdr *layoutid,
+                                    struct xdr_stream *xdr,
+                                    const struct nfs4_layoutcommit_args *args);
 };
 
 struct pnfs_layout_hdr {
@@ -150,8 +158,7 @@ enum pnfs_try_status pnfs_try_to_write_data(struct nfs_write_data *,
                                             const struct rpc_call_ops *, int);
 enum pnfs_try_status pnfs_try_to_read_data(struct nfs_read_data *,
                                            const struct rpc_call_ops *);
-void pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *);
-void pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *);
+bool pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, struct nfs_page *req);
 int pnfs_layout_process(struct nfs4_layoutget *lgp);
 void pnfs_free_lseg_list(struct list_head *tmp_list);
 void pnfs_destroy_layout(struct nfs_inode *);
@@ -179,6 +186,7 @@ int pnfs_ld_read_done(struct nfs_read_data *);
 /* pnfs_dev.c */
 struct nfs4_deviceid_node {
        struct hlist_node               node;
+       struct hlist_node               tmpnode;
        const struct pnfs_layoutdriver_type *ld;
        const struct nfs_client         *nfs_client;
        struct nfs4_deviceid            deviceid;
@@ -285,6 +293,15 @@ static inline int pnfs_return_layout(struct inode *ino)
        return 0;
 }
 
+static inline void pnfs_pageio_init(struct nfs_pageio_descriptor *pgio,
+                                   struct inode *inode)
+{
+       struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
+
+       if (ld)
+               pgio->pg_test = ld->pg_test;
+}
+
 #else  /* CONFIG_NFS_V4_1 */
 
 static inline void pnfs_destroy_all_layouts(struct nfs_client *clp)
@@ -368,16 +385,9 @@ static inline void unset_pnfs_layoutdriver(struct nfs_server *s)
 {
 }
 
-static inline void
-pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *ino)
-{
-       pgio->pg_test = NULL;
-}
-
-static inline void
-pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *ino)
+static inline void pnfs_pageio_init(struct nfs_pageio_descriptor *pgio,
+                                   struct inode *inode)
 {
-       pgio->pg_test = NULL;
 }
 
 static inline void