80 brelse(struct mkfsbuf *bp, int u1 __unused)  in brelse()  argument
83 	assert (bp != NULL);  in brelse()
84 	assert (bp->b_data != NULL);  in brelse()
86 	if (bp->b_lblkno < 0) {  in brelse()
100 		bp->b_bcount = 0;  in brelse()
104 	TAILQ_REMOVE(&buftail, bp, b_tailq);  in brelse()
105 	free(bp->b_data);  in brelse()
106 	free(bp);  in brelse()
110 bwrite(struct mkfsbuf *bp)  in bwrite()  argument
115 	fsinfo_t *fs = bp->b_fs;  in bwrite()
117 	assert (bp != NULL);  in bwrite()
118 	offset = bp->b_blkno * fs->sectorsize + fs->offset;  in bwrite()
119 	bytes  = (size_t)bp->b_bcount;  in bwrite()
120 	if (lseek(bp->b_fs->fd, offset, SEEK_SET) == -1)  in bwrite()
122 	rv = write(bp->b_fs->fd, bp->b_data, bytes);  in bwrite()
123 	brelse(bp, 0);  in bwrite()
136 	struct mkfsbuf *bp;  in bcleanup()  local
148 	TAILQ_FOREACH(bp, &buftail, b_tailq) {  in bcleanup()
150 		    (long long)bp->b_lblkno, (long long)bp->b_blkno,  in bcleanup()
151 		    bp->b_bcount, bp->b_bufsize);  in bcleanup()
162 	struct mkfsbuf *bp;  in getblk()  local
165 	bp = NULL;  in getblk()
170 		TAILQ_FOREACH(bp, &buftail, b_tailq) {  in getblk()
171 			if (bp->b_lblkno != blkno)  in getblk()
176 	if (bp == NULL) {  in getblk()
177 		bp = ecalloc(1, sizeof(*bp));  in getblk()
178 		bp->b_bufsize = 0;  in getblk()
179 		bp->b_blkno = bp->b_lblkno = blkno;  in getblk()
180 		bp->b_fs = vp->fs;  in getblk()
181 		bp->b_data = NULL;  in getblk()
182 		TAILQ_INSERT_HEAD(&buftail, bp, b_tailq);  in getblk()
184 	bp->b_bcount = size;  in getblk()
185 	if (bp->b_data == NULL || bp->b_bcount > bp->b_bufsize) {  in getblk()
186 		n = erealloc(bp->b_data, (size_t)size);  in getblk()
188 		bp->b_data = n;  in getblk()
189 		bp->b_bufsize = size;  in getblk()
192 	return (bp);  in getblk()