[PATCH] Vectorize aio_read/aio_write fileop methods

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / nfs_fs.h

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 247434553ae881794a4188c05e6ea69c6a625bb0..76ff54846ada1e07cab6ca2fa8e0de019a906e85 100644 (file)
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -9,26 +9,7 @@
 #ifndef _LINUX_NFS_FS_H
 #define _LINUX_NFS_FS_H
 
-#include <linux/in.h>
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/rwsem.h>
-#include <linux/wait.h>
-
-#include <linux/sunrpc/debug.h>
-#include <linux/sunrpc/auth.h>
-#include <linux/sunrpc/clnt.h>
-
-#include <linux/nfs.h>
-#include <linux/nfs2.h>
-#include <linux/nfs3.h>
-#include <linux/nfs4.h>
-#include <linux/nfs_xdr.h>
-
-#include <linux/nfs_fs_sb.h>
-
-#include <linux/rwsem.h>
-#include <linux/mempool.h>
+#include <linux/magic.h>
 
 /*
  * Enable debugging support for nfs client.
@@ -42,16 +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
-
-/*
- * These are the default flags for swap requests
- */
-#define NFS_RPC_SWAPFLAGS              (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS)
-
 /*
  * When flushing a cluster of dirty pages, there can be different
  * strategies:
@@ -65,10 +36,39 @@
 
 #ifdef __KERNEL__
 
+#include <linux/in.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/rbtree.h>
+#include <linux/rwsem.h>
+#include <linux/wait.h>
+
+#include <linux/sunrpc/debug.h>
+#include <linux/sunrpc/auth.h>
+#include <linux/sunrpc/clnt.h>
+
+#include <linux/nfs.h>
+#include <linux/nfs2.h>
+#include <linux/nfs3.h>
+#include <linux/nfs4.h>
+#include <linux/nfs_xdr.h>
+
+#include <linux/nfs_fs_sb.h>
+
+#include <linux/rwsem.h>
+#include <linux/mempool.h>
+
+/*
+ * These are the default flags for swap requests
+ */
+#define NFS_RPC_SWAPFLAGS              (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS)
+
 /*
  * NFSv3/v4 Access mode cache entry
  */
 struct nfs_access_entry {
+       struct rb_node          rb_node;
+       struct list_head        lru;
        unsigned long           jiffies;
        struct rpc_cred *       cred;
        int                     mask;
@@ -145,7 +145,9 @@ struct nfs_inode {
         */
        atomic_t                data_updates;
 
-       struct nfs_access_entry cache_access;
+       struct rb_root          access_cache;
+       struct list_head        access_cache_entry_lru;
+       struct list_head        access_cache_inode_lru;
 #ifdef CONFIG_NFS_V3_ACL
        struct posix_acl        *acl_access;
        struct posix_acl        *acl_default;
@@ -199,6 +201,7 @@ struct nfs_inode {
 #define NFS_INO_REVALIDATING   (0)             /* revalidating attrs */
 #define NFS_INO_ADVISE_RDPLUS  (1)             /* advise readdirplus */
 #define NFS_INO_STALE          (2)             /* possible stale inode */
+#define NFS_INO_ACL_LRU_SET    (3)             /* Inode is on the LRU list */
 
 static inline struct nfs_inode *NFS_I(struct inode *inode)
 {
@@ -209,8 +212,7 @@ static inline struct nfs_inode *NFS_I(struct inode *inode)
 #define NFS_FH(inode)                  (&NFS_I(inode)->fh)
 #define NFS_SERVER(inode)              (NFS_SB(inode->i_sb))
 #define NFS_CLIENT(inode)              (NFS_SERVER(inode)->client)
-#define NFS_PROTO(inode)               (NFS_SERVER(inode)->rpc_ops)
-#define NFS_ADDR(inode)                        (RPC_PEERADDR(NFS_CLIENT(inode)))
+#define NFS_PROTO(inode)               (NFS_SERVER(inode)->nfs_client->rpc_ops)
 #define NFS_COOKIEVERF(inode)          (NFS_I(inode)->cookieverf)
 #define NFS_READTIME(inode)            (NFS_I(inode)->read_cache_jiffies)
 #define NFS_CHANGE_ATTR(inode)         (NFS_I(inode)->change_attr)
@@ -297,6 +299,7 @@ extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
 extern int nfs_permission(struct inode *, int, struct nameidata *);
 extern int nfs_access_get_cached(struct inode *, struct rpc_cred *, struct nfs_access_entry *);
 extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *);
+extern void nfs_access_zap_cache(struct inode *inode);
 extern int nfs_open(struct inode *, struct file *);
 extern int nfs_release(struct inode *, struct file *);
 extern int nfs_attribute_timeout(struct inode *inode);
@@ -312,10 +315,6 @@ 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*/
@@ -368,10 +367,12 @@ 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
@@ -427,7 +428,7 @@ 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(unsigned int pagecount);
+struct nfs_write_data *nfs_commit_alloc(void);
 void nfs_commit_free(struct nfs_write_data *p);
 #endif
 
@@ -478,7 +479,7 @@ static inline int nfs_wb_page(struct inode *inode, struct page* page)
 /*
  * Allocate nfs_write_data structures
  */
-extern struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount);
+extern struct nfs_write_data *nfs_writedata_alloc(size_t len);
 
 /*
  * linux/fs/nfs/read.c
@@ -492,7 +493,7 @@ extern void nfs_readdata_release(void *data);
 /*
  * Allocate nfs_read_data structures
  */
-extern struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount);
+extern struct nfs_read_data *nfs_readdata_alloc(size_t len);
 
 /*
  * linux/fs/nfs3proc.c
@@ -579,6 +580,7 @@ extern void * nfs_root_data(void);
 #define NFSDBG_FILE            0x0040
 #define NFSDBG_ROOT            0x0080
 #define NFSDBG_CALLBACK                0x0100
+#define NFSDBG_CLIENT          0x0200
 #define NFSDBG_ALL             0xFFFF
 
 #ifdef __KERNEL__