nfsd4: fix filehandle comment

[safe/jmp/linux-2.6] / include / linux / nfs_fs.h

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index c9fecd3..1a0b85a 100644 (file)
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -33,14 +33,10 @@
 #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__
 
 #include <linux/in.h>
-#include <linux/kref.h>
 #include <linux/mm.h>
 #include <linux/pagemap.h>
 #include <linux/rbtree.h>
@@ -167,6 +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;
@@ -185,6 +182,9 @@ struct nfs_inode {
        fmode_t                  delegation_state;
        struct rw_semaphore     rwsem;
 #endif /* CONFIG_NFS_V4*/
+#ifdef CONFIG_NFS_FSCACHE
+       struct fscache_cookie   *fscache;
+#endif
        struct inode            vfs_inode;
 };
 
@@ -206,6 +206,9 @@ struct nfs_inode {
 #define NFS_INO_STALE          (1)             /* possible stale inode */
 #define NFS_INO_ACL_LRU_SET    (2)             /* Inode is on the LRU list */
 #define NFS_INO_MOUNTPOINT     (3)             /* inode is remote mountpoint */
+#define NFS_INO_FLUSHING       (4)             /* inode is flushing out data */
+#define NFS_INO_FSCACHE                (5)             /* inode can be cached by FS-Cache */
+#define NFS_INO_FSCACHE_LOCK   (6)             /* FS-Cache cookie management lock */
 
 static inline struct nfs_inode *NFS_I(const struct inode *inode)
 {
@@ -259,6 +262,11 @@ static inline int NFS_STALE(const struct inode *inode)
        return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
 }
 
+static inline int NFS_FSCACHE(const struct inode *inode)
+{
+       return test_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags);
+}
+
 static inline __u64 NFS_FILEID(const struct inode *inode)
 {
        return NFS_I(inode)->fileid;
@@ -339,7 +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);
@@ -414,7 +421,7 @@ extern const struct inode_operations nfs_dir_inode_operations;
 extern const struct inode_operations nfs3_dir_inode_operations;
 #endif /* CONFIG_NFS_V3 */
 extern const struct file_operations nfs_dir_operations;
-extern struct dentry_operations nfs_dentry_operations;
+extern const struct dentry_operations nfs_dentry_operations;
 
 extern void nfs_force_lookup_revalidate(struct inode *dir);
 extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, struct nfs_fattr *fattr);
@@ -462,28 +469,17 @@ extern int  nfs_writepages(struct address_space *, struct writeback_control *);
 extern int  nfs_flush_incompatible(struct file *file, struct page *page);
 extern int  nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
 extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
-extern void nfs_writedata_release(void *);
 
 /*
  * 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);
-extern void nfs_commitdata_release(void *wdata);
-#else
-static inline int
-nfs_commit_inode(struct inode *inode, int how)
-{
-       return 0;
-}
 #endif
 
 static inline int
@@ -496,6 +492,7 @@ nfs_have_writebacks(struct inode *inode)
  * Allocate nfs_write_data structures
  */
 extern struct nfs_write_data *nfs_writedata_alloc(unsigned int npages);
+extern void nfs_writedata_free(struct nfs_write_data *);
 
 /*
  * linux/fs/nfs/read.c
@@ -504,12 +501,14 @@ extern int  nfs_readpage(struct file *, struct page *);
 extern int  nfs_readpages(struct file *, struct address_space *,
                struct list_head *, unsigned);
 extern int  nfs_readpage_result(struct rpc_task *, struct nfs_read_data *);
-extern void nfs_readdata_release(void *data);
+extern int  nfs_readpage_async(struct nfs_open_context *, struct inode *,
+                              struct page *);
 
 /*
  * Allocate nfs_read_data structures
  */
 extern struct nfs_read_data *nfs_readdata_alloc(unsigned int npages);
+extern void nfs_readdata_free(struct nfs_read_data *);
 
 /*
  * linux/fs/nfs3proc.c
@@ -582,6 +581,7 @@ extern void * nfs_root_data(void);
 #define NFSDBG_CALLBACK                0x0100
 #define NFSDBG_CLIENT          0x0200
 #define NFSDBG_MOUNT           0x0400
+#define NFSDBG_FSCACHE         0x0800
 #define NFSDBG_ALL             0xFFFF
 
 #ifdef __KERNEL__