fold do_sync_file_range into sys_sync_file_range

[linux-beck.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 891f7d642e5c6789cb05853137a8caa58a21c2c6..77a975089d9a5b8b9bc510fd1e30a9c75ce43f0b 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -152,6 +152,7 @@ struct inodes_stat_t {
 #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))
@@ -1094,10 +1095,6 @@ struct file_lock {
 
 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,
@@ -2091,8 +2088,6 @@ extern int filemap_fdatawait_range(struct address_space *, loff_t lstart,
 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,
@@ -2191,7 +2186,6 @@ static inline void insert_inode_hash(struct inode *inode) {
        __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
@@ -2266,9 +2260,11 @@ ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
        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,
@@ -2277,7 +2273,8 @@ 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,
@@ -2286,16 +2283,7 @@ 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