SUNRPC: Fix a potential race in rpc_wake_up_task()

[mirror_ubuntu-artful-kernel.git] / include / linux / nfs_fs.h

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 3b5b04193feeba2610cceb7b2e3cbdd0e6daf101..02f38189d18038bce45aa470975c3ceef86f32f9 100644 (file)
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -9,6 +9,8 @@
 #ifndef _LINUX_NFS_FS_H
 #define _LINUX_NFS_FS_H
 
+#include <linux/magic.h>
+
 /*
  * Enable debugging support for nfs client.
  * Requires RPC_DEBUG.
@@ -21,11 +23,6 @@
 #define NFS_MAX_UDP_TIMEOUT    (60*HZ)
 #define NFS_MAX_TCP_TIMEOUT    (600*HZ)
 
-/*
- * superblock magic number for NFS
- */
-#define NFS_SUPER_MAGIC                        0x6969
-
 /*
  * When flushing a cluster of dirty pages, there can be different
  * strategies:
@@ -160,7 +157,7 @@ struct nfs_inode {
         * This is the cookie verifier used for NFSv3 readdir
         * operations
         */
-       __u32                   cookieverf[2];
+       __be32                  cookieverf[2];
 
        /*
         * This is the list of dirty unwritten pages.
@@ -293,6 +290,7 @@ static inline int nfs_verify_change_attribute(struct inode *inode, unsigned long
  * linux/fs/nfs/inode.c
  */
 extern int nfs_sync_mapping(struct address_space *mapping);
+extern void nfs_zap_mapping(struct inode *inode, struct address_space *mapping);
 extern void nfs_zap_caches(struct inode *);
 extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *,
                                struct nfs_fattr *);
@@ -318,13 +316,9 @@ extern void nfs_end_data_update(struct inode *);
 extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
 extern void put_nfs_open_context(struct nfs_open_context *ctx);
 extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode);
-extern struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent,
-                                       const struct dentry *dentry,
-                                       struct nfs_fh *fh,
-                                       struct nfs_fattr *fattr);
 
 /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */
-extern u32 root_nfs_parse_addr(char *name); /*__init*/
+extern __be32 root_nfs_parse_addr(char *name); /*__init*/
 
 static inline void nfs_fattr_init(struct nfs_fattr *fattr)
 {
@@ -374,10 +368,12 @@ extern int nfs3_removexattr (struct dentry *, const char *name);
  */
 extern ssize_t nfs_direct_IO(int, struct kiocb *, const struct iovec *, loff_t,
                        unsigned long);
-extern ssize_t nfs_file_direct_read(struct kiocb *iocb, char __user *buf,
-                       size_t count, loff_t pos);
-extern ssize_t nfs_file_direct_write(struct kiocb *iocb, const char __user *buf,
-                       size_t count, loff_t pos);
+extern ssize_t nfs_file_direct_read(struct kiocb *iocb,
+                       const struct iovec *iov, unsigned long nr_segs,
+                       loff_t pos);
+extern ssize_t nfs_file_direct_write(struct kiocb *iocb,
+                       const struct iovec *iov, unsigned long nr_segs,
+                       loff_t pos);
 
 /*
  * linux/fs/nfs/dir.c
@@ -432,11 +428,6 @@ extern int  nfs_updatepage(struct file *, struct page *, unsigned int, unsigned
 extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
 extern void nfs_writedata_release(void *);
 
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
-struct nfs_write_data *nfs_commit_alloc(void);
-void nfs_commit_free(struct nfs_write_data *p);
-#endif
-
 /*
  * Try to write back everything synchronously (but check the
  * return value!)
@@ -444,6 +435,8 @@ void nfs_commit_free(struct nfs_write_data *p);
 extern int  nfs_sync_inode_wait(struct inode *, unsigned long, unsigned int, int);
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
 extern int  nfs_commit_inode(struct inode *, int);
+extern struct nfs_write_data *nfs_commit_alloc(void);
+extern void nfs_commit_free(struct nfs_write_data *wdata);
 extern void nfs_commit_release(void *wdata);
 #else
 static inline int