| fs.h (149875) | fs.h (175202) |
|---|---|
| 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/gnu/fs/ext2fs/fs.h 149875 2005-09-08 06:30:05Z truckman $ | 36 * $FreeBSD: head/sys/gnu/fs/ext2fs/fs.h 175202 2008-01-10 01:10:58Z attilio $ |
| 37 */ 38 39/* 40 * Each disk drive contains some number of file systems. 41 * A file system consists of a number of cylinder groups. 42 * Each cylinder group has inodes and data. 43 * 44 * A file system is described by its super-block, which in turn --- 95 unchanged lines hidden (view full) --- 140extern u_char *fragtbl[]; 141 142/* a few remarks about superblock locking/unlocking 143 * Linux provides special routines for doing so 144 * I haven't figured out yet what BSD does 145 * I think I'll try a VOP_LOCK/VOP_UNLOCK on the device vnode 146 */ 147#define DEVVP(inode) (VFSTOEXT2(ITOV(inode)->v_mount)->um_devvp) | 37 */ 38 39/* 40 * Each disk drive contains some number of file systems. 41 * A file system consists of a number of cylinder groups. 42 * Each cylinder group has inodes and data. 43 * 44 * A file system is described by its super-block, which in turn --- 95 unchanged lines hidden (view full) --- 140extern u_char *fragtbl[]; 141 142/* a few remarks about superblock locking/unlocking 143 * Linux provides special routines for doing so 144 * I haven't figured out yet what BSD does 145 * I think I'll try a VOP_LOCK/VOP_UNLOCK on the device vnode 146 */ 147#define DEVVP(inode) (VFSTOEXT2(ITOV(inode)->v_mount)->um_devvp) |
| 148#define lock_super(devvp) vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY, curthread) | 148#define lock_super(devvp) vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY) |
| 149#define unlock_super(devvp) VOP_UNLOCK(devvp, 0, curthread) 150 151/* 152 * Historically, ext2fs kept it's metadata buffers on the LOCKED queue. Now, 153 * we change the lock owner to kern so that we may use it from contexts other 154 * than the one that originally locked it. When we are finished with the 155 * buffer, we release it, writing it first if it was dirty. 156 */ --- 14 unchanged lines hidden --- | 149#define unlock_super(devvp) VOP_UNLOCK(devvp, 0, curthread) 150 151/* 152 * Historically, ext2fs kept it's metadata buffers on the LOCKED queue. Now, 153 * we change the lock owner to kern so that we may use it from contexts other 154 * than the one that originally locked it. When we are finished with the 155 * buffer, we release it, writing it first if it was dirty. 156 */ --- 14 unchanged lines hidden --- |