patch-2.4.4 linux/include/linux/iobuf.h

• Lines: 43
• Date: Fri Apr 27 15:48:51 2001
• Orig file: v2.4.3/linux/include/linux/iobuf.h
• Orig date: Mon Mar 26 15:48:19 2001

diff -u --recursive --new-file v2.4.3/linux/include/linux/iobuf.h linux/include/linux/iobuf.h
@@ -24,8 +24,7 @@
  * entire iovec.
  */
 
-#define KIO_MAX_ATOMIC_IO	64 /* in kb */
-#define KIO_MAX_ATOMIC_BYTES	(64 * 1024)
+#define KIO_MAX_ATOMIC_IO	512 /* in kb */
 #define KIO_STATIC_PAGES	(KIO_MAX_ATOMIC_IO / (PAGE_SIZE >> 10) + 1)
 #define KIO_MAX_SECTORS		(KIO_MAX_ATOMIC_IO * 2)
 
@@ -47,8 +46,10 @@
 
 	unsigned int	locked : 1;	/* If set, pages has been locked */
 	
-	/* Always embed enough struct pages for 64k of IO */
+	/* Always embed enough struct pages for atomic IO */
 	struct page *	map_array[KIO_STATIC_PAGES];
+	struct buffer_head * bh[KIO_MAX_SECTORS];
+	unsigned long blocks[KIO_MAX_SECTORS];
 
 	/* Dynamic state for IO completion: */
 	atomic_t	io_count;	/* IOs still in progress */
@@ -64,17 +65,18 @@
 void	unmap_kiobuf(struct kiobuf *iobuf);
 int	lock_kiovec(int nr, struct kiobuf *iovec[], int wait);
 int	unlock_kiovec(int nr, struct kiobuf *iovec[]);
+void	mark_dirty_kiobuf(struct kiobuf *iobuf, int bytes);
 
 /* fs/iobuf.c */
 
-void __init kiobuf_setup(void);
-void	kiobuf_init(struct kiobuf *);
 void	end_kio_request(struct kiobuf *, int);
 void	simple_wakeup_kiobuf(struct kiobuf *);
 int	alloc_kiovec(int nr, struct kiobuf **);
 void	free_kiovec(int nr, struct kiobuf **);
 int	expand_kiobuf(struct kiobuf *, int);
 void	kiobuf_wait_for_io(struct kiobuf *);
+extern int alloc_kiobuf_bhs(struct kiobuf *);
+extern void free_kiobuf_bhs(struct kiobuf *);
 
 /* fs/buffer.c */