53 bread(struct uufsd *disk, ufs2_daddr_t blockno, void *data, size_t size)  in bread()  argument
58 	ERROR(disk, NULL);  in bread()
70 			ERROR(disk, "allocate bounce buffer");  in bread()
74 	cnt = pread(disk->d_fd, p2, size, (off_t)(blockno * disk->d_bsize));  in bread()
76 		ERROR(disk, "read error from block device");  in bread()
80 		ERROR(disk, "end of file from block device");  in bread()
84 		ERROR(disk, "short read or read error from block device");  in bread()
100 bwrite(struct uufsd *disk, ufs2_daddr_t blockno, const void *data, size_t size)  in bwrite()  argument
106 	ERROR(disk, NULL);  in bwrite()
108 	rv = ufs_disk_write(disk);  in bwrite()
110 		ERROR(disk, "failed to open disk for writing");  in bwrite()
123 			ERROR(disk, "allocate bounce buffer");  in bwrite()
129 	cnt = pwrite(disk->d_fd, data, size, (off_t)(blockno * disk->d_bsize));  in bwrite()
133 		ERROR(disk, "write error to block device");  in bwrite()
137 		ERROR(disk, "short write to block device");  in bwrite()
147 berase_helper(struct uufsd *disk, ufs2_daddr_t blockno, ufs2_daddr_t size)  in berase_helper()  argument
151 	ioarg[0] = blockno * disk->d_bsize;  in berase_helper()
153 	return (ioctl(disk->d_fd, DIOCGDELETE, ioarg));  in berase_helper()
159 berase_helper(struct uufsd *disk, ufs2_daddr_t blockno, ufs2_daddr_t size)  in berase_helper()  argument
165 	offset = blockno * disk->d_bsize;  in berase_helper()
166 	zero_chunk_size = 65536 * disk->d_bsize;  in berase_helper()
169 		ERROR(disk, "failed to allocate memory");  in berase_helper()
176 		rv = pwrite(disk->d_fd, zero_chunk, pwrite_size, offset);  in berase_helper()
178 			ERROR(disk, "failed writing to disk");  in berase_helper()
192 berase(struct uufsd *disk, ufs2_daddr_t blockno, ufs2_daddr_t size)  in berase()  argument
196 	ERROR(disk, NULL);  in berase()
197 	rv = ufs_disk_write(disk);  in berase()
199 		ERROR(disk, "failed to open disk for writing");  in berase()
202 	return (berase_helper(disk, blockno, size));  in berase()