#define WRITE_SYNC_PLUG (WRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_NOIDLE))
#define WRITE_SYNC (WRITE_SYNC_PLUG | (1 << BIO_RW_UNPLUG))
#define WRITE_ODIRECT_PLUG (WRITE | (1 << BIO_RW_SYNCIO))
+#define WRITE_META (WRITE | (1 << BIO_RW_META))
#define SWRITE_SYNC_PLUG \
(SWRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_NOIDLE))
#define SWRITE_SYNC (SWRITE_SYNC_PLUG | (1 << BIO_RW_UNPLUG))
extern void send_sigio(struct fown_struct *fown, int fd, int band);
-/* fs/sync.c */
-extern int do_sync_mapping_range(struct address_space *mapping, loff_t offset,
- loff_t endbyte, unsigned int flags);
-
#ifdef CONFIG_FILE_LOCKING
extern int fcntl_getlk(struct file *, struct flock __user *);
extern int fcntl_setlk(unsigned int, struct file *, unsigned int,
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 int filemap_fdatawrite_range(struct address_space *mapping,
__insert_inode_hash(inode, inode->i_ino);
}
-extern struct file * get_empty_filp(void);
extern void file_move(struct file *f, struct list_head *list);
extern void file_kill(struct file *f);
#ifdef CONFIG_BLOCK
int lock_type);
enum {
- DIO_LOCKING = 1, /* need locking between buffered and direct access */
- DIO_NO_LOCKING, /* bdev; no locking at all between buffered/direct */
- DIO_OWN_LOCKING, /* filesystem locks buffered and direct internally */
+ /* need locking between buffered and direct access */
+ DIO_LOCKING = 0x01,
+
+ /* filesystem does not support filling holes */
+ DIO_SKIP_HOLES = 0x02,
};
static inline ssize_t blockdev_direct_IO(int rw, struct kiocb *iocb,
dio_iodone_t end_io)
{
return __blockdev_direct_IO(rw, iocb, inode, bdev, iov, offset,
- nr_segs, get_block, end_io, DIO_LOCKING);
+ nr_segs, get_block, end_io,
+ DIO_LOCKING | DIO_SKIP_HOLES);
}
static inline ssize_t blockdev_direct_IO_no_locking(int rw, struct kiocb *iocb,
dio_iodone_t end_io)
{
return __blockdev_direct_IO(rw, iocb, inode, bdev, iov, offset,
- 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_block_t get_block,
- dio_iodone_t end_io)
-{
- return __blockdev_direct_IO(rw, iocb, inode, bdev, iov, offset,
- nr_segs, get_block, end_io, DIO_OWN_LOCKING);
+ nr_segs, get_block, end_io, 0);
}
#endif