Merge /spare/repo/linux-2.6/

[linux-2.6] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9b8b696d4f150a52b72dfb1addc673168ebd421b..67e6732d4fdc736ec39f4c57324e4d64064e063e 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -213,6 +213,7 @@ extern int dir_notify_enable;
 #include <linux/radix-tree.h>
 #include <linux/prio_tree.h>
 #include <linux/init.h>
+#include <linux/sched.h>
 
 #include <asm/atomic.h>
 #include <asm/semaphore.h>
@@ -220,6 +221,7 @@ extern int dir_notify_enable;
 
 struct iovec;
 struct nameidata;
+struct kiocb;
 struct pipe_inode_info;
 struct poll_table_struct;
 struct kstatfs;
@@ -240,7 +242,7 @@ typedef int (get_block_t)(struct inode *inode, sector_t iblock,
 typedef int (get_blocks_t)(struct inode *inode, sector_t iblock,
                        unsigned long max_blocks,
                        struct buffer_head *bh_result, int create);
-typedef void (dio_iodone_t)(struct inode *inode, loff_t offset,
+typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
                        ssize_t bytes, void *private);
 
 /*
@@ -302,7 +304,6 @@ struct iattr {
 struct page;
 struct address_space;
 struct writeback_control;
-struct kiocb;
 
 struct address_space_operations {
        int (*writepage)(struct page *page, struct writeback_control *wbc);
@@ -330,6 +331,8 @@ struct address_space_operations {
        int (*releasepage) (struct page *, int);
        ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov,
                        loff_t offset, unsigned long nr_segs);
+       struct page* (*get_xip_page)(struct address_space *, sector_t,
+                       int);
 };
 
 struct backing_dev_info;
@@ -471,6 +474,11 @@ struct inode {
        struct dnotify_struct   *i_dnotify; /* for directory notifications */
 #endif
 
+#ifdef CONFIG_INOTIFY
+       struct list_head        inotify_watches; /* watches on this inode */
+       struct semaphore        inotify_sem;    /* protects the watches list */
+#endif
+
        unsigned long           i_state;
        unsigned long           dirtied_when;   /* jiffies of first dirtying */
 
@@ -581,7 +589,6 @@ struct file {
        atomic_t                f_count;
        unsigned int            f_flags;
        mode_t                  f_mode;
-       int                     f_error;
        loff_t                  f_pos;
        struct fown_struct      f_owner;
        unsigned int            f_uid, f_gid;
@@ -674,6 +681,7 @@ struct file_lock {
        struct lock_manager_operations *fl_lmops;       /* Callbacks for lockmanagers */
        union {
                struct nfs_lock_info    nfs_fl;
+               struct nfs4_lock_info   nfs4_fl;
        } fl_u;
 };
 
@@ -689,11 +697,13 @@ extern struct list_head file_lock_list;
 #include <linux/fcntl.h>
 
 extern int fcntl_getlk(struct file *, struct flock __user *);
-extern int fcntl_setlk(struct file *, unsigned int, struct flock __user *);
+extern int fcntl_setlk(unsigned int, struct file *, unsigned int,
+                       struct flock __user *);
 
 #if BITS_PER_LONG == 32
 extern int fcntl_getlk64(struct file *, struct flock64 __user *);
-extern int fcntl_setlk64(struct file *, unsigned int, struct flock64 __user *);
+extern int fcntl_setlk64(unsigned int, struct file *, unsigned int,
+                       struct flock64 __user *);
 #endif
 
 extern void send_sigio(struct fown_struct *fown, int fd, int band);
@@ -820,16 +830,34 @@ enum {
 #define vfs_check_frozen(sb, level) \
        wait_event((sb)->s_wait_unfrozen, ((sb)->s_frozen < (level)))
 
+static inline void get_fs_excl(void)
+{
+       atomic_inc(&current->fs_excl);
+}
+
+static inline void put_fs_excl(void)
+{
+       atomic_dec(&current->fs_excl);
+}
+
+static inline int has_fs_excl(void)
+{
+       return atomic_read(&current->fs_excl);
+}
+
+
 /*
  * Superblock locking.
  */
 static inline void lock_super(struct super_block * sb)
 {
+       get_fs_excl();
        down(&sb->s_lock);
 }
 
 static inline void unlock_super(struct super_block * sb)
 {
+       put_fs_excl();
        up(&sb->s_lock);
 }
 
@@ -883,7 +911,9 @@ struct block_device_operations {
        int (*open) (struct inode *, struct file *);
        int (*release) (struct inode *, struct file *);
        int (*ioctl) (struct inode *, struct file *, unsigned, unsigned long);
+       long (*unlocked_ioctl) (struct file *, unsigned, unsigned long);
        long (*compat_ioctl) (struct file *, unsigned, unsigned long);
+       int (*direct_access) (struct block_device *, sector_t, unsigned long *);
        int (*media_changed) (struct gendisk *);
        int (*revalidate_disk) (struct gendisk *);
        struct module *owner;
@@ -963,8 +993,8 @@ struct inode_operations {
        int (*rename) (struct inode *, struct dentry *,
                        struct inode *, struct dentry *);
        int (*readlink) (struct dentry *, char __user *,int);
-       int (*follow_link) (struct dentry *, struct nameidata *);
-       void (*put_link) (struct dentry *, struct nameidata *);
+       void * (*follow_link) (struct dentry *, struct nameidata *);
+       void (*put_link) (struct dentry *, struct nameidata *, void *);
        void (*truncate) (struct inode *);
        int (*permission) (struct inode *, int, struct nameidata *);
        int (*setattr) (struct dentry *, struct iattr *);
@@ -1024,6 +1054,7 @@ struct super_operations {
 #define I_FREEING              16
 #define I_CLEAR                        32
 #define I_NEW                  64
+#define I_WILL_FREE            128
 
 #define I_DIRTY (I_DIRTY_SYNC | I_DIRTY_DATASYNC | I_DIRTY_PAGES)
 
@@ -1369,7 +1400,6 @@ extern void emergency_remount(void);
 extern int do_remount_sb(struct super_block *sb, int flags,
                         void *data, int force);
 extern sector_t bmap(struct inode *, sector_t);
-extern int setattr_mask(unsigned int);
 extern int notify_change(struct dentry *, struct iattr *);
 extern int permission(struct inode *, int, struct nameidata *);
 extern int generic_permission(struct inode *, int,
@@ -1411,7 +1441,11 @@ extern struct inode * igrab(struct inode *);
 extern ino_t iunique(struct super_block *, ino_t);
 extern int inode_needs_sync(struct inode *inode);
 extern void generic_delete_inode(struct inode *inode);
+extern void generic_drop_inode(struct inode *inode);
 
+extern struct inode *ilookup5_nowait(struct super_block *sb,
+               unsigned long hashval, int (*test)(struct inode *, void *),
+               void *data);
 extern struct inode *ilookup5(struct super_block *sb, unsigned long hashval,
                int (*test)(struct inode *, void *), void *data);
 extern struct inode *ilookup(struct super_block *sb, unsigned long ino);
@@ -1494,6 +1528,23 @@ extern loff_t remote_llseek(struct file *file, loff_t offset, int origin);
 extern int generic_file_open(struct inode * inode, struct file * filp);
 extern int nonseekable_open(struct inode * inode, struct file * filp);
 
+#ifdef CONFIG_FS_XIP
+extern ssize_t xip_file_read(struct file *filp, char __user *buf, size_t len,
+                            loff_t *ppos);
+extern ssize_t xip_file_sendfile(struct file *in_file, loff_t *ppos,
+                                size_t count, read_actor_t actor,
+                                void *target);
+extern int xip_file_mmap(struct file * file, struct vm_area_struct * vma);
+extern ssize_t xip_file_write(struct file *filp, const char __user *buf,
+                             size_t len, loff_t *ppos);
+extern int xip_truncate_page(struct address_space *mapping, loff_t from);
+#else
+static inline int xip_truncate_page(struct address_space *mapping, loff_t from)
+{
+       return 0;
+}
+#endif
+
 static inline void do_generic_file_read(struct file * filp, loff_t *ppos,
                                        read_descriptor_t * desc,
                                        read_actor_t actor)
@@ -1551,8 +1602,8 @@ extern struct file_operations generic_ro_fops;
 extern int vfs_readlink(struct dentry *, char __user *, int, const char *);
 extern int vfs_follow_link(struct nameidata *, const char *);
 extern int page_readlink(struct dentry *, char __user *, int);
-extern int page_follow_link_light(struct dentry *, struct nameidata *);
-extern void page_put_link(struct dentry *, struct nameidata *);
+extern void *page_follow_link_light(struct dentry *, struct nameidata *);
+extern void page_put_link(struct dentry *, struct nameidata *, void *);
 extern int page_symlink(struct inode *inode, const char *symname, int len);
 extern struct inode_operations page_symlink_inode_operations;
 extern int generic_readlink(struct dentry *, char __user *, int);