| fs.h (251809) | fs.h (252103) |
|---|---|
| 1/*- 2 * modified for EXT2FS support in Lites 1.1 3 * 4 * Aug 1995, Godmar Back (gback@cs.utah.edu) 5 * University of Utah, Department of Computer Science 6 */ 7/*- 8 * Copyright (c) 1982, 1986, 1993 --- 19 unchanged lines hidden (view full) --- 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)fs.h 8.7 (Berkeley) 4/19/94 | 1/*- 2 * modified for EXT2FS support in Lites 1.1 3 * 4 * Aug 1995, Godmar Back (gback@cs.utah.edu) 5 * University of Utah, Department of Computer Science 6 */ 7/*- 8 * Copyright (c) 1982, 1986, 1993 --- 19 unchanged lines hidden (view full) --- 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)fs.h 8.7 (Berkeley) 4/19/94 |
| 36 * $FreeBSD: head/sys/fs/ext2fs/fs.h 251809 2013-06-16 16:10:45Z pfg $ | 36 * $FreeBSD: head/sys/fs/ext2fs/fs.h 252103 2013-06-23 02:44:42Z pfg $ |
| 37 */ 38 39#ifndef _FS_EXT2FS_FS_H_ 40#define _FS_EXT2FS_FS_H_ 41 42/* 43 * Each disk drive contains some number of file systems. 44 * A file system consists of a number of cylinder groups. --- 48 unchanged lines hidden (view full) --- 93/* 94 * Macros for access to superblock array structures 95 */ 96 97/* 98 * Turn file system block numbers into disk block addresses. 99 * This maps file system blocks to device size blocks. 100 */ | 37 */ 38 39#ifndef _FS_EXT2FS_FS_H_ 40#define _FS_EXT2FS_FS_H_ 41 42/* 43 * Each disk drive contains some number of file systems. 44 * A file system consists of a number of cylinder groups. --- 48 unchanged lines hidden (view full) --- 93/* 94 * Macros for access to superblock array structures 95 */ 96 97/* 98 * Turn file system block numbers into disk block addresses. 99 * This maps file system blocks to device size blocks. 100 */ |
| 101#define fsbtodb(fs, b) ((b) << ((fs)->e2fs_fsbtodb)) 102#define dbtofsb(fs, b) ((b) >> ((fs)->e2fs_fsbtodb)) | 101#define fsbtodb(fs, b) ((daddr_t)(b) << (fs)->e2fs_fsbtodb) 102#define dbtofsb(fs, b) ((b) >> (fs)->e2fs_fsbtodb) |
| 103 104/* get group containing inode */ 105#define ino_to_cg(fs, x) (((x) - 1) / (fs->e2fs_ipg)) 106 107/* get block containing inode from its number x */ 108#define ino_to_fsba(fs, x) \ 109 ((fs)->e2fs_gd[ino_to_cg((fs), (x))].ext2bgd_i_tables + \ 110 (((x) - 1) % (fs)->e2fs->e2fs_ipg) / (fs)->e2fs_ipb) --- 52 unchanged lines hidden --- | 103 104/* get group containing inode */ 105#define ino_to_cg(fs, x) (((x) - 1) / (fs->e2fs_ipg)) 106 107/* get block containing inode from its number x */ 108#define ino_to_fsba(fs, x) \ 109 ((fs)->e2fs_gd[ino_to_cg((fs), (x))].ext2bgd_i_tables + \ 110 (((x) - 1) % (fs)->e2fs->e2fs_ipg) / (fs)->e2fs_ipb) --- 52 unchanged lines hidden --- |