diff options
Diffstat (limited to 'fs/exofs/super.c')
| -rw-r--r-- | fs/exofs/super.c | 57 |
1 files changed, 22 insertions, 35 deletions
diff --git a/fs/exofs/super.c b/fs/exofs/super.c index babb1958f6f..90b4c526939 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -481,64 +481,51 @@ static int _read_and_match_data_map(struct exofs_sb_info *sbi, unsigned numdevs, { u64 stripe_length; - sbi->data_map.odm_num_comps = - le32_to_cpu(dt->dt_data_map.cb_num_comps); - sbi->data_map.odm_stripe_unit = + sbi->layout.stripe_unit = le64_to_cpu(dt->dt_data_map.cb_stripe_unit); - sbi->data_map.odm_group_width = + sbi->layout.group_width = le32_to_cpu(dt->dt_data_map.cb_group_width); - sbi->data_map.odm_group_depth = + sbi->layout.group_depth = le32_to_cpu(dt->dt_data_map.cb_group_depth); - sbi->data_map.odm_mirror_cnt = - le32_to_cpu(dt->dt_data_map.cb_mirror_cnt); - sbi->data_map.odm_raid_algorithm = + sbi->layout.mirrors_p1 = + le32_to_cpu(dt->dt_data_map.cb_mirror_cnt) + 1; + sbi->layout.raid_algorithm = le32_to_cpu(dt->dt_data_map.cb_raid_algorithm); /* FIXME: Only raid0 for now. if not so, do not mount */ - if (sbi->data_map.odm_num_comps != numdevs) { - EXOFS_ERR("odm_num_comps(%u) != numdevs(%u)\n", - sbi->data_map.odm_num_comps, numdevs); - return -EINVAL; - } - if (sbi->data_map.odm_raid_algorithm != PNFS_OSD_RAID_0) { + if (sbi->layout.raid_algorithm != PNFS_OSD_RAID_0) { EXOFS_ERR("Only RAID_0 for now\n"); return -EINVAL; } - if (0 != (numdevs % (sbi->data_map.odm_mirror_cnt + 1))) { - EXOFS_ERR("Data Map wrong, numdevs=%d mirrors=%d\n", - numdevs, sbi->data_map.odm_mirror_cnt); + if (numdevs < (sbi->layout.group_width * sbi->layout.mirrors_p1)) { + EXOFS_ERR("Data Map wrong, " + "numdevs=%d < group_width=%d * mirrors=%d\n", + numdevs, sbi->layout.group_width, + sbi->layout.mirrors_p1); return -EINVAL; } - if (0 != (sbi->data_map.odm_stripe_unit & ~PAGE_MASK)) { + if (0 != (sbi->layout.stripe_unit & ~PAGE_MASK)) { EXOFS_ERR("Stripe Unit(0x%llx)" " must be Multples of PAGE_SIZE(0x%lx)\n", - _LLU(sbi->data_map.odm_stripe_unit), PAGE_SIZE); + _LLU(sbi->layout.stripe_unit), PAGE_SIZE); return -EINVAL; } - sbi->layout.stripe_unit = sbi->data_map.odm_stripe_unit; - sbi->layout.mirrors_p1 = sbi->data_map.odm_mirror_cnt + 1; - - if (sbi->data_map.odm_group_width) { - sbi->layout.group_width = sbi->data_map.odm_group_width; - sbi->layout.group_depth = sbi->data_map.odm_group_depth; + if (sbi->layout.group_width) { if (!sbi->layout.group_depth) { EXOFS_ERR("group_depth == 0 && group_width != 0\n"); return -EINVAL; } - sbi->layout.group_count = sbi->data_map.odm_num_comps / - sbi->layout.mirrors_p1 / - sbi->data_map.odm_group_width; + sbi->layout.group_count = numdevs / sbi->layout.mirrors_p1 / + sbi->layout.group_width; } else { - if (sbi->data_map.odm_group_depth) { + if (sbi->layout.group_depth) { printk(KERN_NOTICE "Warning: group_depth ignored " - "group_width == 0 && group_depth == %d\n", - sbi->data_map.odm_group_depth); - sbi->data_map.odm_group_depth = 0; + "group_width == 0 && group_depth == %lld\n", + _LLU(sbi->layout.group_depth)); } - sbi->layout.group_width = sbi->data_map.odm_num_comps / - sbi->layout.mirrors_p1; + sbi->layout.group_width = numdevs / sbi->layout.mirrors_p1; sbi->layout.group_depth = -1; sbi->layout.group_count = 1; } @@ -558,7 +545,7 @@ static int _read_and_match_data_map(struct exofs_sb_info *sbi, unsigned numdevs, sbi->layout.group_width, _LLU(sbi->layout.group_depth), sbi->layout.mirrors_p1, - sbi->data_map.odm_raid_algorithm); + sbi->layout.raid_algorithm); return 0; } |