50 struct buf;
67 	void	(*io_start)(struct buf *);
68 	void	(*io_complete)(struct buf *);
69 	void	(*io_deallocate)(struct buf *);
70 	int	(*io_countdeps)(struct buf *, int);
99 struct buf {  struct
109 	void	(*b_iodone)(struct buf *);  argument
110 	void	(*b_ckhashcalc)(struct buf *);  argument
114 	TAILQ_ENTRY(buf) b_bobufs;	/* (V) Buffer's associated vnode. */  argument
133 		TAILQ_ENTRY(buf) b_freelist; /* (Q) */  argument
141 		TAILQ_HEAD(cluster_list_head, buf) cluster_head;  argument
142 		TAILQ_ENTRY(buf) cluster_entry;
393 	TAILQ_HEAD(buf_queue, buf) queue;
395 	struct	buf *insert_point;
396 	struct	buf *switch_point;
406 	struct buf **bs_children;	/* List of associated buffers. */
412 bwrite(struct buf *bp)  in bwrite()
423 bstrategy(struct buf *bp)  in bstrategy()
435 buf_start(struct buf *bp)  in buf_start()
445 buf_complete(struct buf *bp)  in buf_complete()
455 buf_deallocate(struct buf *bp)  in buf_deallocate()
462 buf_countdeps(struct buf *bp, int i)  in buf_countdeps()
471 buf_track(struct buf *bp __unused, const char *location __unused)  in buf_track()
518 buf_mapped(struct buf *bp)  in buf_mapped()
524 void	runningbufwakeup(struct buf *);
529 void	bdata2bio(struct buf *bp, struct bio *bip);
532 void	bremfree(struct buf *);
533 void	bremfreef(struct buf *);	/* XXX Force bremfree, only for nfs. */
544 	    int, struct ucred *, int, void (*)(struct buf *), struct buf **);
545 void	bdwrite(struct buf *);
546 void	bawrite(struct buf *);
547 void	babarrierwrite(struct buf *);
548 int	bbarrierwrite(struct buf *);
549 void	bdirty(struct buf *);
550 void	bundirty(struct buf *);
551 void	bufstrategy(struct bufobj *, struct buf *);
552 void	brelse(struct buf *);
553 void	bqrelse(struct buf *);
554 int	vfs_bio_awrite(struct buf *);
555 void	vfs_busy_pages_acquire(struct buf *bp);
556 void	vfs_busy_pages_release(struct buf *bp);
557 struct buf *incore(struct bufobj *, daddr_t);
559 struct buf *gbincore(struct bufobj *, daddr_t);
560 struct buf *gbincore_unlocked(struct bufobj *, daddr_t);
561 struct buf *getblk(struct vnode *, daddr_t, int, int, int, int);
563 	    int slpflag, int slptimeo, int flags, struct buf **bpp);
564 struct buf *geteblk(int, int);
565 int	bufwait(struct buf *);
566 int	bufwrite(struct buf *);
567 void	bufdone(struct buf *);
574 	    struct ucred *, long, int, int, struct buf **);
576 void	cluster_write(struct vnode *, struct buf *, u_quad_t, int, int);
577 void	vfs_bio_brelse(struct buf *bp, int ioflags);
578 void	vfs_bio_bzero_buf(struct buf *bp, int base, int size);
579 void	vfs_bio_clrbuf(struct buf *);
580 void	vfs_bio_set_flags(struct buf *bp, int ioflags);
581 void	vfs_bio_set_valid(struct buf *, int base, int size);
582 void	vfs_busy_pages(struct buf *, int clear_modify);
583 void	vfs_unbusy_pages(struct buf *);
584 int	vmapbuf(struct buf *, void *, size_t, int);
585 void	vunmapbuf(struct buf *);
586 void	brelvp(struct buf *);
587 void	bgetvp(struct vnode *, struct buf *);
588 void	pbgetbo(struct bufobj *bo, struct buf *bp);
589 void	pbgetvp(struct vnode *, struct buf *);
590 void	pbrelbo(struct buf *);
591 void	pbrelvp(struct buf *);
592 int	allocbuf(struct buf *bp, int size);
593 void	reassignbuf(struct buf *);
594 void	bwait(struct buf *, u_char, const char *);
595 void	bdone(struct buf *);