Merge branch 'nfs-for-2.6.34' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'nfs-for-2.6.34' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (44 commits)
  NFS: Remove requirement for inode->i_mutex from nfs_invalidate_mapping
  NFS: Clean up nfs_sync_mapping
  NFS: Simplify nfs_wb_page()
  NFS: Replace __nfs_write_mapping with sync_inode()
  NFS: Simplify nfs_wb_page_cancel()
  NFS: Ensure inode is always marked I_DIRTY_DATASYNC, if it has unstable pages
  NFS: Run COMMIT as an asynchronous RPC call when wbc->for_background is set
  NFS: Reduce the number of unnecessary COMMIT calls
  NFS: Add a count of the number of unstable writes carried by an inode
  NFS: Cleanup - move nfs_write_inode() into fs/nfs/write.c
  nfs41 fix NFS4ERR_CLID_INUSE for exchange id
  NFS: Fix an allocation-under-spinlock bug
  SUNRPC: Handle EINVAL error returns from the TCP connect operation
  NFSv4.1: Various fixes to the sequence flag error handling
  nfs4: renewd renew operations should take/put a client reference
  nfs41: renewd sequence operations should take/put client reference
  nfs: prevent backlogging of renewd requests
  nfs: kill renewd before clearing client minor version
  NFS: Make close(2) asynchronous when closing NFS O_DIRECT files
  NFS: Improve NFS iostat byte count accuracy for writes
  ...

3 files changed, 18 insertions, 13 deletions

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index d09db1bc9083..1a0b85aa151e 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -33,9 +33,6 @@
 #define FLUSH_STABLE            4       /* commit to stable storage */
 #define FLUSH_LOWPRI            8       /* low priority background flush */
 #define FLUSH_HIGHPRI           16      /* high priority memory reclaim flush */
-#define FLUSH_NOCOMMIT          32      /* Don't send the NFSv3/v4 COMMIT */
-#define FLUSH_INVALIDATE        64      /* Invalidate the page cache */
-#define FLUSH_NOWRITEPAGE       128     /* Don't call writepage() */
 
 #ifdef __KERNEL__
 
@@ -166,6 +163,7 @@ struct nfs_inode {
         struct radix_tree_root  nfs_page_tree;
 
         unsigned long           npages;
+        unsigned long           ncommit;
 
         /* Open contexts for shared mmap writes */
         struct list_head        open_files;
@@ -349,7 +347,6 @@ extern int nfs_attribute_timeout(struct inode *inode);
 extern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode);
 extern int __nfs_revalidate_inode(struct nfs_server *, struct inode *);
 extern int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping);
-extern int nfs_revalidate_mapping_nolock(struct inode *inode, struct address_space *mapping);
 extern int nfs_setattr(struct dentry *, struct iattr *);
 extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr);
 extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
@@ -477,21 +474,12 @@ extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
  * Try to write back everything synchronously (but check the
  * return value!)
  */
-extern long nfs_sync_mapping_wait(struct address_space *, struct writeback_control *, int);
 extern int nfs_wb_all(struct inode *inode);
-extern int nfs_wb_nocommit(struct inode *inode);
 extern int nfs_wb_page(struct inode *inode, struct page* page);
 extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
-extern int  nfs_commit_inode(struct inode *, int);
 extern struct nfs_write_data *nfs_commitdata_alloc(void);
 extern void nfs_commit_free(struct nfs_write_data *wdata);
-#else
-static inline int
-nfs_commit_inode(struct inode *inode, int how)
-{
-        return 0;
-}
 #endif
 
 static inline int
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 6a2e44fd75e2..717a5e54eb1d 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -193,6 +193,8 @@ struct nfs4_slot_table {
         int             max_slots;              /* # slots in table */
         int             highest_used_slotid;    /* sent to server on each SEQ.
                                                  * op for dynamic resizing */
+        int             target_max_slots;       /* Set by CB_RECALL_SLOT as
+                                                 * the new max_slots */
 };
 
 static inline int slot_idx(struct nfs4_slot_table *tbl, struct nfs4_slot *sp)
diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h
index 6508f0dc0eff..d7152b451e21 100644
--- a/include/linux/sunrpc/bc_xprt.h
+++ b/include/linux/sunrpc/bc_xprt.h
@@ -38,12 +38,27 @@ int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs);
 void xprt_destroy_backchannel(struct rpc_xprt *, int max_reqs);
 void bc_release_request(struct rpc_task *);
 int bc_send(struct rpc_rqst *req);
+
+/*
+ * Determine if a shared backchannel is in use
+ */
+static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
+{
+        if (rqstp->rq_server->bc_xprt)
+                return 1;
+        return 0;
+}
 #else /* CONFIG_NFS_V4_1 */
 static inline int xprt_setup_backchannel(struct rpc_xprt *xprt,
                                          unsigned int min_reqs)
 {
         return 0;
 }
+
+static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
+{
+        return 0;
+}
 #endif /* CONFIG_NFS_V4_1 */
 #endif /* _LINUX_SUNRPC_BC_XPRT_H */