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-rw-r--r--include/linux/fs.h63
1 files changed, 57 insertions, 6 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9b8b696d4f1..f9adf75fd9b 100644
--- 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;
@@ -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)