C++ (Cpp) ext2fs_statvfs示例

示例#1

文件： ext2fs_vfsops.c 项目： ryo/netbsd-src

int
ext2fs_mountroot(void)
{
	extern struct vnode *rootvp;
	struct m_ext2fs *fs;
	struct mount *mp;
	struct ufsmount *ump;
	int error;

	if (device_class(root_device) != DV_DISK)
		return ENODEV;

	if ((error = vfs_rootmountalloc(MOUNT_EXT2FS, "root_device", &mp))) {
		vrele(rootvp);
		return error;
	}

	if ((error = ext2fs_mountfs(rootvp, mp)) != 0) {
		vfs_unbusy(mp, false, NULL);
		vfs_destroy(mp);
		return error;
	}
	mountlist_append(mp);
	ump = VFSTOUFS(mp);
	fs = ump->um_e2fs;
	ext2fs_sb_setmountinfo(fs, mp);
	(void)ext2fs_statvfs(mp, &mp->mnt_stat);
	vfs_unbusy(mp, false, NULL);
	setrootfstime((time_t)fs->e2fs.e2fs_wtime);
	return 0;
}

示例#2

文件： ext2fs_vfsops.c 项目： zoulasc/ext2fs

int
ext2fs_mountroot(void)
{	
//	printf("ext2fs_mountroot\n");
	extern struct vnode *rootvp;
	struct m_ext2fs *fs;
	struct mount *mp;
	struct ufsmount *ump;
	int error;

	if (device_class(root_device) != DV_DISK)
		return (ENODEV);

	if ((error = vfs_rootmountalloc(MOUNT_EXT2FS, "root_device", &mp))) {
		vrele(rootvp);
		return (error);
	}

	if ((error = ext2fs_mountfs(rootvp, mp)) != 0) {
		vfs_unbusy(mp, false, NULL);
		vfs_destroy(mp);
		return (error);
	}
	mountlist_append(mp);
	ump = VFSTOUFS(mp);
	fs = ump->um_e2fs;
	memset(fs->e2fs_fsmnt, 0, sizeof(fs->e2fs_fsmnt));
	(void) copystr(mp->mnt_stat.f_mntonname, fs->e2fs_fsmnt,
	    sizeof(fs->e2fs_fsmnt) - 1, 0);
	if (fs->e2fs.e2fs_rev > E2FS_REV0) {
		memset(fs->e2fs.e2fs_fsmnt, 0, sizeof(fs->e2fs.e2fs_fsmnt));
		(void) copystr(mp->mnt_stat.f_mntonname, fs->e2fs.e2fs_fsmnt,
		    sizeof(fs->e2fs.e2fs_fsmnt) - 1, 0);
	}
	(void)ext2fs_statvfs(mp, &mp->mnt_stat);
	vfs_unbusy(mp, false, NULL);
	setrootfstime((time_t)fs->e2fs.e2fs_wtime);
	return (0);
}