1 files changed, 47 insertions, 9 deletions

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index efaa31c70fbe..212b8c883d22 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -6,6 +6,7 @@
 #include <linux/mount.h>
 #include <linux/security.h>
 #include <linux/crc32.h>
+#include <linux/nfs_page.h>
 
 #define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS)
 
@@ -31,8 +32,6 @@ static inline int nfs_attr_use_mounted_on_fileid(struct nfs_fattr *fattr)
             (((fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT) == 0) &&
              ((fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) == 0)))
                 return 0;
-
-        fattr->fileid = fattr->mounted_on_fileid;
         return 1;
 }
 
@@ -189,9 +188,15 @@ extern struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
                                              const struct sockaddr *ds_addr,
                                              int ds_addrlen, int ds_proto,
                                              unsigned int ds_timeo,
-                                             unsigned int ds_retrans);
+                                             unsigned int ds_retrans,
+                                             u32 minor_version,
+                                             rpc_authflavor_t au_flavor);
 extern struct rpc_clnt *nfs4_find_or_create_ds_client(struct nfs_client *,
                                                 struct inode *);
+extern struct nfs_client *nfs3_set_ds_client(struct nfs_client *mds_clp,
+                        const struct sockaddr *ds_addr, int ds_addrlen,
+                        int ds_proto, unsigned int ds_timeo,
+                        unsigned int ds_retrans, rpc_authflavor_t au_flavor);
 #ifdef CONFIG_PROC_FS
 extern int __init nfs_fs_proc_init(void);
 extern void nfs_fs_proc_exit(void);
@@ -244,9 +249,12 @@ struct nfs_pgio_header *nfs_pgio_header_alloc(const struct nfs_rw_ops *);
 void nfs_pgio_header_free(struct nfs_pgio_header *);
 void nfs_pgio_data_destroy(struct nfs_pgio_header *);
 int nfs_generic_pgio(struct nfs_pageio_descriptor *, struct nfs_pgio_header *);
-int nfs_initiate_pgio(struct rpc_clnt *, struct nfs_pgio_header *,
-                      const struct rpc_call_ops *, int, int);
+int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
+                      struct rpc_cred *cred, const struct nfs_rpc_ops *rpc_ops,
+                      const struct rpc_call_ops *call_ops, int how, int flags);
 void nfs_free_request(struct nfs_page *req);
+struct nfs_pgio_mirror *
+nfs_pgio_current_mirror(struct nfs_pageio_descriptor *desc);
 
 static inline void nfs_iocounter_init(struct nfs_io_counter *c)
 {
@@ -254,6 +262,12 @@ static inline void nfs_iocounter_init(struct nfs_io_counter *c)
         atomic_set(&c->io_count, 0);
 }
 
+static inline bool nfs_pgio_has_mirroring(struct nfs_pageio_descriptor *desc)
+{
+        WARN_ON_ONCE(desc->pg_mirror_count < 1);
+        return desc->pg_mirror_count > 1;
+}
+
 /* nfs2xdr.c */
 extern struct rpc_procinfo nfs_procedures[];
 extern int nfs2_decode_dirent(struct xdr_stream *,
@@ -377,7 +391,7 @@ extern struct rpc_stat nfs_rpcstat;
 
 extern int __init register_nfs_fs(void);
 extern void __exit unregister_nfs_fs(void);
-extern void nfs_sb_active(struct super_block *sb);
+extern bool nfs_sb_active(struct super_block *sb);
 extern void nfs_sb_deactive(struct super_block *sb);
 
 /* namespace.c */
@@ -416,7 +430,6 @@ int  nfs_show_options(struct seq_file *, struct dentry *);
 int  nfs_show_devname(struct seq_file *, struct dentry *);
 int  nfs_show_path(struct seq_file *, struct dentry *);
 int  nfs_show_stats(struct seq_file *, struct dentry *);
-void nfs_put_super(struct super_block *);
 int nfs_remount(struct super_block *sb, int *flags, char *raw_data);
 
 /* write.c */
@@ -429,6 +442,7 @@ extern void nfs_write_prepare(struct rpc_task *task, void *calldata);
 extern void nfs_commit_prepare(struct rpc_task *task, void *calldata);
 extern int nfs_initiate_commit(struct rpc_clnt *clnt,
                                struct nfs_commit_data *data,
+                               const struct nfs_rpc_ops *nfs_ops,
                                const struct rpc_call_ops *call_ops,
                                int how, int flags);
 extern void nfs_init_commit(struct nfs_commit_data *data,
@@ -442,13 +456,15 @@ int nfs_scan_commit(struct inode *inode, struct list_head *dst,
                     struct nfs_commit_info *cinfo);
 void nfs_mark_request_commit(struct nfs_page *req,
                              struct pnfs_layout_segment *lseg,
-                             struct nfs_commit_info *cinfo);
+                             struct nfs_commit_info *cinfo,
+                             u32 ds_commit_idx);
 int nfs_write_need_commit(struct nfs_pgio_header *);
 int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
                             int how, struct nfs_commit_info *cinfo);
 void nfs_retry_commit(struct list_head *page_list,
                       struct pnfs_layout_segment *lseg,
-                      struct nfs_commit_info *cinfo);
+                      struct nfs_commit_info *cinfo,
+                      u32 ds_commit_idx);
 void nfs_commitdata_release(struct nfs_commit_data *data);
 void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
                                  struct nfs_commit_info *cinfo);
@@ -459,6 +475,7 @@ void nfs_init_cinfo(struct nfs_commit_info *cinfo,
                     struct nfs_direct_req *dreq);
 int nfs_key_timeout_notify(struct file *filp, struct inode *inode);
 bool nfs_ctx_key_to_expire(struct nfs_open_context *ctx);
+void nfs_pageio_stop_mirroring(struct nfs_pageio_descriptor *pgio);
 
 #ifdef CONFIG_MIGRATION
 extern int nfs_migrate_page(struct address_space *,
@@ -482,6 +499,7 @@ static inline void nfs_inode_dio_wait(struct inode *inode)
         inode_dio_wait(inode);
 }
 extern ssize_t nfs_dreq_bytes_left(struct nfs_direct_req *dreq);
+extern void nfs_direct_set_resched_writes(struct nfs_direct_req *dreq);
 
 /* nfs4proc.c */
 extern void __nfs4_read_done_cb(struct nfs_pgio_header *);
@@ -495,6 +513,26 @@ extern int nfs41_walk_client_list(struct nfs_client *clp,
                                 struct nfs_client **result,
                                 struct rpc_cred *cred);
 
+static inline struct inode *nfs_igrab_and_active(struct inode *inode)
+{
+        inode = igrab(inode);
+        if (inode != NULL && !nfs_sb_active(inode->i_sb)) {
+                iput(inode);
+                inode = NULL;
+        }
+        return inode;
+}
+
+static inline void nfs_iput_and_deactive(struct inode *inode)
+{
+        if (inode != NULL) {
+                struct super_block *sb = inode->i_sb;
+
+                iput(inode);
+                nfs_sb_deactive(sb);
+        }
+}
+
 /*
  * Determine the device name as a string
  */