fs/ufs/cylinder.c

29 static void ufs_read_cylinder (struct super_block * sb,
32 	struct ufs_sb_info * sbi = UFS_SB(sb);
44 	UCPI_UBH(ucpi)->count = uspi->s_cgsize >> sb->s_blocksize_bits;
50 		if (!(UCPI_UBH(ucpi)->bh[i] = sb_bread(sb, UCPI_UBH(ucpi)->fragment + i)))
54 	ucpi->c_cgx	= fs32_to_cpu(sb, ucg->cg_cgx);
55 	ucpi->c_ncyl	= fs16_to_cpu(sb, ucg->cg_ncyl);
56 	ucpi->c_niblk	= fs16_to_cpu(sb, ucg->cg_niblk);
57 	ucpi->c_ndblk	= fs32_to_cpu(sb, ucg->cg_ndblk);
58 	ucpi->c_rotor	= fs32_to_cpu(sb, ucg->cg_rotor);
59 	ucpi->c_frotor	= fs32_to_cpu(sb, ucg->cg_frotor);
60 	ucpi->c_irotor	= fs32_to_cpu(sb, ucg->cg_irotor);
61 	ucpi->c_btotoff	= fs32_to_cpu(sb, ucg->cg_btotoff);
62 	ucpi->c_boff	= fs32_to_cpu(sb, ucg->cg_boff);
63 	ucpi->c_iusedoff = fs32_to_cpu(sb, ucg->cg_iusedoff);
64 	ucpi->c_freeoff	= fs32_to_cpu(sb, ucg->cg_freeoff);
65 	ucpi->c_nextfreeoff = fs32_to_cpu(sb, ucg->cg_nextfreeoff);
66 	ucpi->c_clustersumoff = fs32_to_cpu(sb, ucg->cg_u.cg_44.cg_clustersumoff);
67 	ucpi->c_clusteroff = fs32_to_cpu(sb, ucg->cg_u.cg_44.cg_clusteroff);
68 	ucpi->c_nclusterblks = fs32_to_cpu(sb, ucg->cg_u.cg_44.cg_nclusterblks);
76 	ufs_error (sb, "ufs_read_cylinder", "can't read cylinder group block %u", cgno);
83 void ufs_put_cylinder (struct super_block * sb, unsigned bitmap_nr)
85 	struct ufs_sb_info * sbi = UFS_SB(sb);
102 		ufs_panic (sb, "ufs_put_cylinder", "internal error");
109 	ucg->cg_rotor = cpu_to_fs32(sb, ucpi->c_rotor);
110 	ucg->cg_frotor = cpu_to_fs32(sb, ucpi->c_frotor);
111 	ucg->cg_irotor = cpu_to_fs32(sb, ucpi->c_irotor);
128 	struct super_block * sb, unsigned cgno)
130 	struct ufs_sb_info * sbi = UFS_SB(sb);
139 		ufs_panic (sb, "ufs_load_cylinder", "internal error, high number of cg");
155 				ufs_panic (sb, "ufs_load_cylinder", "internal error, wrong number of cg in cache");
164 			ufs_read_cylinder (sb, cgno, cgno);
191 			ufs_put_cylinder (sb, UFS_MAX_GROUP_LOADED-1);
198 		ufs_read_cylinder (sb, cgno, 0);