#include <linux/config.h>
#include <linux/limits.h>
#include <linux/ioctl.h>
-#include <linux/rcuref.h>
/*
* It's silly to have NR_OPEN bigger than NR_FILE, but you can change
int max_files; /* tunable */
};
extern struct files_stat_struct files_stat;
+extern int get_max_files(void);
struct inodes_stat_t {
int nr_inodes;
#define FMODE_PREAD 8
#define FMODE_PWRITE FMODE_PREAD /* These go hand in hand */
+/* File is being opened for execution. Primary users of this flag are
+ distributed filesystems that can use it to achieve correct ETXTBUSY
+ behavior for cross-node execution/opening_for_writing of files */
+#define FMODE_EXEC 16
+
#define RW_MASK 1
#define RWA_MASK 2
#define READ 0
#define MS_BIND 4096
#define MS_MOVE 8192
#define MS_REC 16384
-#define MS_VERBOSE 32768
+#define MS_VERBOSE 32768 /* War is peace. Verbosity is silence.
+ MS_VERBOSE is deprecated. */
+#define MS_SILENT 32768
+#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */
#define MS_UNBINDABLE (1<<17) /* change to unbindable */
#define MS_PRIVATE (1<<18) /* change to private */
#define MS_SLAVE (1<<19) /* change to slave */
#define MS_SHARED (1<<20) /* change to shared */
-#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */
#define MS_ACTIVE (1<<30)
#define MS_NOUSER (1<<31)
/*
* Superblock flags that can be altered by MS_REMOUNT
*/
-#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_NOATIME|\
- MS_NODIRATIME)
+#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK)
/*
* Old magic mount flag and mask
#define IS_NOQUOTA(inode) ((inode)->i_flags & S_NOQUOTA)
#define IS_APPEND(inode) ((inode)->i_flags & S_APPEND)
#define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE)
-#define IS_NOATIME(inode) (__IS_FLG(inode, MS_NOATIME) || ((inode)->i_flags & S_NOATIME))
-#define IS_NODIRATIME(inode) __IS_FLG(inode, MS_NODIRATIME)
#define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL)
#define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD)
#define BLKBSZGET _IOR(0x12,112,size_t)
#define BLKBSZSET _IOW(0x12,113,size_t)
#define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 *arg) */
+#define BLKTRACESETUP _IOWR(0x12,115,struct blk_user_trace_setup)
+#define BLKTRACESTART _IO(0x12,116)
+#define BLKTRACESTOP _IO(0x12,117)
+#define BLKTRACETEARDOWN _IO(0x12,118)
#define BMAP_IOCTL 1 /* obsolete - kept for compatibility */
#define FIBMAP _IO(0x00,1) /* bmap access */
#include <linux/prio_tree.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/mutex.h>
#include <asm/atomic.h>
#include <asm/semaphore.h>
#include <asm/byteorder.h>
+struct hd_geometry;
struct iovec;
struct nameidata;
struct kiocb;
struct vm_area_struct;
struct vfsmount;
-/* Used to be a macro which just called the function, now just a function */
-extern void update_atime (struct inode *);
-
extern void __init inode_init(unsigned long);
extern void __init inode_init_early(void);
extern void __init mnt_init(unsigned long);
struct buffer_head;
typedef int (get_block_t)(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create);
-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 kiocb *iocb, loff_t offset,
ssize_t bytes, void *private);
*/
#include <linux/quota.h>
+/**
+ * enum positive_aop_returns - aop return codes with specific semantics
+ *
+ * @AOP_WRITEPAGE_ACTIVATE: Informs the caller that page writeback has
+ * completed, that the page is still locked, and
+ * should be considered active. The VM uses this hint
+ * to return the page to the active list -- it won't
+ * be a candidate for writeback again in the near
+ * future. Other callers must be careful to unlock
+ * the page if they get this return. Returned by
+ * writepage();
+ *
+ * @AOP_TRUNCATED_PAGE: The AOP method that was handed a locked page has
+ * unlocked it and the page might have been truncated.
+ * The caller should back up to acquiring a new page and
+ * trying again. The aop will be taking reasonable
+ * precautions not to livelock. If the caller held a page
+ * reference, it should drop it before retrying. Returned
+ * by readpage(), prepare_write(), and commit_write().
+ *
+ * address_space_operation functions return these large constants to indicate
+ * special semantics to the caller. These are much larger than the bytes in a
+ * page to allow for functions that return the number of bytes operated on in a
+ * given page.
+ */
+
+enum positive_aop_returns {
+ AOP_WRITEPAGE_ACTIVATE = 0x80000,
+ AOP_TRUNCATED_PAGE = 0x80001,
+};
+
/*
* oh the beauties of C type declarations.
*/
struct address_space_operations {
int (*writepage)(struct page *page, struct writeback_control *wbc);
int (*readpage)(struct file *, struct page *);
- int (*sync_page)(struct page *);
+ void (*sync_page)(struct page *);
/* Write back some dirty pages from this mapping. */
int (*writepages)(struct address_space *, struct writeback_control *);
- /* Set a page dirty */
+ /* Set a page dirty. Return true if this dirtied it */
int (*set_page_dirty)(struct page *page);
int (*readpages)(struct file *filp, struct address_space *mapping,
int (*commit_write)(struct file *, struct page *, unsigned, unsigned);
/* Unfortunately this kludge is needed for FIBMAP. Don't use it */
sector_t (*bmap)(struct address_space *, sector_t);
- int (*invalidatepage) (struct page *, unsigned long);
+ void (*invalidatepage) (struct page *, unsigned long);
int (*releasepage) (struct page *, gfp_t);
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);
+ /* migrate the contents of a page to the specified target */
+ int (*migratepage) (struct page *, struct page *);
};
struct backing_dev_info;
dev_t bd_dev; /* not a kdev_t - it's a search key */
struct inode * bd_inode; /* will die */
int bd_openers;
- struct semaphore bd_sem; /* open/close mutex */
- struct semaphore bd_mount_sem; /* mount mutex */
+ struct mutex bd_mutex; /* open/close mutex */
+ struct mutex bd_mount_mutex; /* mount mutex */
struct list_head bd_inodes;
void * bd_holder;
int bd_holders;
unsigned int i_blkbits;
unsigned long i_blksize;
unsigned long i_version;
- unsigned long i_blocks;
+ blkcnt_t i_blocks;
unsigned short i_bytes;
spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */
- struct semaphore i_sem;
+ struct mutex i_mutex;
struct rw_semaphore i_alloc_sem;
struct inode_operations *i_op;
struct file_operations *i_fop; /* former ->i_op->default_file_ops */
#ifdef CONFIG_INOTIFY
struct list_head inotify_watches; /* watches on this inode */
- struct semaphore inotify_sem; /* protects the watches list */
+ struct mutex inotify_mutex; /* protects the watches list */
#endif
unsigned long i_state;
#define file_list_lock() spin_lock(&files_lock);
#define file_list_unlock() spin_unlock(&files_lock);
-#define get_file(x) rcuref_inc(&(x)->f_count)
+#define get_file(x) atomic_inc(&(x)->f_count)
#define file_count(x) atomic_read(&(x)->f_count)
#define MAX_NON_LFS ((1UL<<31) - 1)
#define FL_POSIX 1
#define FL_FLOCK 2
#define FL_ACCESS 8 /* not trying to lock, just looking */
-#define FL_LOCKD 16 /* lock held by rpc.lockd */
#define FL_LEASE 32 /* lease held on this file */
#define FL_SLEEP 128 /* A blocking lock */
#define OFFT_OFFSET_MAX INT_LIMIT(off_t)
#endif
-extern struct list_head file_lock_list;
-
#include <linux/fcntl.h>
extern int fcntl_getlk(struct file *, struct flock __user *);
extern void locks_copy_lock(struct file_lock *, struct file_lock *);
extern void locks_remove_posix(struct file *, fl_owner_t);
extern void locks_remove_flock(struct file *);
-extern struct file_lock *posix_test_lock(struct file *, struct file_lock *);
+extern int posix_test_lock(struct file *, struct file_lock *, struct file_lock *);
+extern int posix_lock_file_conf(struct file *, struct file_lock *, struct file_lock *);
extern int posix_lock_file(struct file *, struct file_lock *);
extern int posix_lock_file_wait(struct file *, struct file_lock *);
-extern void posix_block_lock(struct file_lock *, struct file_lock *);
-extern void posix_unblock_lock(struct file *, struct file_lock *);
+extern int posix_unblock_lock(struct file *, struct file_lock *);
extern int posix_locks_deadlock(struct file_lock *, struct file_lock *);
extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl);
extern int __break_lease(struct inode *inode, unsigned int flags);
struct list_head s_list; /* Keep this first */
dev_t s_dev; /* search index; _not_ kdev_t */
unsigned long s_blocksize;
- unsigned long s_old_blocksize;
unsigned char s_blocksize_bits;
unsigned char s_dirt;
unsigned long long s_maxbytes; /* Max file size */
unsigned long s_magic;
struct dentry *s_root;
struct rw_semaphore s_umount;
- struct semaphore s_lock;
+ struct mutex s_lock;
int s_count;
int s_syncing;
int s_need_sync_fs;
* The next field is for VFS *only*. No filesystems have any business
* even looking at it. You had been warned.
*/
- struct semaphore s_vfs_rename_sem; /* Kludge */
+ struct mutex s_vfs_rename_mutex; /* Kludge */
/* Granuality of c/m/atime in ns.
Cannot be worse than a second */
static inline void lock_super(struct super_block * sb)
{
get_fs_excl();
- down(&sb->s_lock);
+ mutex_lock(&sb->s_lock);
}
static inline void unlock_super(struct super_block * sb)
{
put_fs_excl();
- up(&sb->s_lock);
+ mutex_unlock(&sb->s_lock);
}
/*
int (*direct_access) (struct block_device *, sector_t, unsigned long *);
int (*media_changed) (struct gendisk *);
int (*revalidate_disk) (struct gendisk *);
+ int (*getgeo)(struct block_device *, struct hd_geometry *);
struct module *owner;
};
ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*removexattr) (struct dentry *, const char *);
+ void (*truncate_range)(struct inode *, loff_t, loff_t);
};
struct seq_file;
void (*umount_begin) (struct super_block *);
int (*show_options)(struct seq_file *, struct vfsmount *);
+ int (*show_stats)(struct seq_file *, struct vfsmount *);
ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
__mark_inode_dirty(inode, I_DIRTY_SYNC);
}
-static inline void touch_atime(struct vfsmount *mnt, struct dentry *dentry)
+static inline void inode_inc_link_count(struct inode *inode)
+{
+ inode->i_nlink++;
+ mark_inode_dirty(inode);
+}
+
+static inline void inode_dec_link_count(struct inode *inode)
{
- /* per-mountpoint checks will go here */
- update_atime(dentry->d_inode);
+ inode->i_nlink--;
+ mark_inode_dirty(inode);
}
+extern void touch_atime(struct vfsmount *mnt, struct dentry *dentry);
static inline void file_accessed(struct file *file)
{
if (!(file->f_flags & O_NOATIME))
* directory. The name should be stored in the @name (with the
* understanding that it is already pointing to a a %NAME_MAX+1 sized
* buffer. get_name() should return %0 on success, a negative error code
- * or error. @get_name will be called without @parent->i_sem held.
+ * or error. @get_name will be called without @parent->i_mutex held.
*
* get_parent:
* @get_parent should find the parent directory for the given @child which
* nfsd_find_fh_dentry() in either the @obj or @parent parameters.
*
* Locking rules:
- * get_parent is called with child->d_inode->i_sem down
+ * get_parent is called with child->d_inode->i_mutex down
* get_name is not (which is possibly inconsistent)
*/
extern int vfs_statfs(struct super_block *, struct kstatfs *);
+/* /sys/fs */
+extern struct subsystem fs_subsys;
+
#define FLOCK_VERIFY_READ 1
#define FLOCK_VERIFY_WRITE 2
/* fs/open.c */
-extern int do_truncate(struct dentry *, loff_t start, struct file *filp);
-extern long do_sys_open(const char __user *filename, int flags, int mode);
+extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs,
+ struct file *filp);
+extern long do_sys_open(int fdf, const char __user *filename, int flags,
+ int mode);
extern struct file *filp_open(const char *, int, int);
extern struct file * dentry_open(struct dentry *, struct vfsmount *, int);
extern int filp_close(struct file *, fl_owner_t id);
extern int unregister_chrdev(unsigned int, const char *);
extern void unregister_chrdev_region(dev_t, unsigned);
extern int chrdev_open(struct inode *, struct file *);
+extern int get_chrdev_list(char *);
+extern void *acquire_chrdev_list(void);
+extern int count_chrdev_list(void);
+extern void *get_next_chrdev(void *);
+extern int get_chrdev_info(void *, int *, char **);
+extern void release_chrdev_list(void *);
/* fs/block_dev.c */
#define BDEVNAME_SIZE 32 /* Largest string for a blockdev identifier */
extern struct block_device *lookup_bdev(const char *);
extern struct block_device *open_bdev_excl(const char *, int, void *);
extern void close_bdev_excl(struct block_device *);
+extern void *acquire_blkdev_list(void);
+extern int count_blkdev_list(void);
+extern void *get_next_blkdev(void *);
+extern int get_blkdev_info(void *, int *, char **);
+extern void release_blkdev_list(void *);
extern void init_special_inode(struct inode *, umode_t, dev_t);
extern struct file_operations read_fifo_fops;
extern struct file_operations write_fifo_fops;
extern struct file_operations rdwr_fifo_fops;
-extern struct file_operations read_pipe_fops;
-extern struct file_operations write_pipe_fops;
-extern struct file_operations rdwr_pipe_fops;
extern int fs_may_remount_ro(struct super_block *);
extern int filemap_write_and_wait(struct address_space *mapping);
extern int filemap_write_and_wait_range(struct address_space *mapping,
loff_t lstart, loff_t lend);
+extern int wait_on_page_writeback_range(struct address_space *mapping,
+ pgoff_t start, pgoff_t end);
+extern int __filemap_fdatawrite_range(struct address_space *mapping,
+ loff_t start, loff_t end, int sync_mode);
+
+extern long do_fsync(struct file *file, int datasync);
extern void sync_supers(void);
extern void sync_filesystems(int wait);
extern void emergency_sync(void);
}
extern int do_pipe(int *);
-extern int open_namei(const char *, int, int, struct nameidata *);
+extern int open_namei(int dfd, const char *, int, int, struct nameidata *);
extern int may_open(struct nameidata *, int, int);
extern int kernel_read(struct file *, unsigned long, char *, unsigned long);
extern struct inode *new_inode(struct super_block *);
extern int remove_suid(struct dentry *);
extern void remove_dquot_ref(struct super_block *, int, struct list_head *);
-extern struct semaphore iprune_sem;
extern void __insert_inode_hash(struct inode *, unsigned long hashval);
extern void remove_inode_hash(struct inode *);
ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
struct block_device *bdev, const struct iovec *iov, loff_t offset,
- unsigned long nr_segs, get_blocks_t get_blocks, dio_iodone_t end_io,
+ unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
int lock_type);
enum {
static inline ssize_t blockdev_direct_IO(int rw, struct kiocb *iocb,
struct inode *inode, struct block_device *bdev, const struct iovec *iov,
- loff_t offset, unsigned long nr_segs, get_blocks_t get_blocks,
+ loff_t offset, unsigned long nr_segs, get_block_t get_block,
dio_iodone_t end_io)
{
return __blockdev_direct_IO(rw, iocb, inode, bdev, iov, offset,
- nr_segs, get_blocks, end_io, DIO_LOCKING);
+ nr_segs, get_block, end_io, DIO_LOCKING);
}
static inline ssize_t blockdev_direct_IO_no_locking(int rw, struct kiocb *iocb,
struct inode *inode, struct block_device *bdev, const struct iovec *iov,
- loff_t offset, unsigned long nr_segs, get_blocks_t get_blocks,
+ loff_t offset, unsigned long nr_segs, get_block_t get_block,
dio_iodone_t end_io)
{
return __blockdev_direct_IO(rw, iocb, inode, bdev, iov, offset,
- nr_segs, get_blocks, end_io, DIO_NO_LOCKING);
+ nr_segs, get_block, end_io, DIO_NO_LOCKING);
}
static inline ssize_t blockdev_direct_IO_own_locking(int rw, struct kiocb *iocb,
struct inode *inode, struct block_device *bdev, const struct iovec *iov,
- loff_t offset, unsigned long nr_segs, get_blocks_t get_blocks,
+ loff_t offset, unsigned long nr_segs, get_block_t get_block,
dio_iodone_t end_io)
{
return __blockdev_direct_IO(rw, iocb, inode, bdev, iov, offset,
- nr_segs, get_blocks, end_io, DIO_OWN_LOCKING);
+ nr_segs, get_block, end_io, DIO_OWN_LOCKING);
}
extern struct file_operations generic_ro_fops;
extern int page_readlink(struct dentry *, char __user *, int);
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,
+ gfp_t gfp_mask);
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);
extern int vfs_stat(char __user *, struct kstat *);
extern int vfs_lstat(char __user *, struct kstat *);
+extern int vfs_stat_fd(int dfd, char __user *, struct kstat *);
+extern int vfs_lstat_fd(int dfd, char __user *, struct kstat *);
extern int vfs_fstat(unsigned int, struct kstat *);
extern int vfs_ioctl(struct file *, unsigned int, unsigned int, unsigned long);
extern ssize_t simple_read_from_buffer(void __user *, size_t, loff_t *, const void *, size_t);
+#ifdef CONFIG_MIGRATION
+extern int buffer_migrate_page(struct page *, struct page *);
+#else
+#define buffer_migrate_page NULL
+#endif
+
extern int inode_change_ok(struct inode *, struct iattr *);
extern int __must_check inode_setattr(struct inode *, struct iattr *);
-extern void inode_update_time(struct inode *inode, int ctime_too);
+extern void file_update_time(struct file *file);
static inline ino_t parent_ino(struct dentry *dentry)
{
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff