diff options
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 52 |
1 files changed, 3 insertions, 49 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index d9cce54cc2d5..0f11fd1417ab 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -440,18 +440,6 @@ static inline sector_t calc_dev_sboffset(struct block_device *bdev) return MD_NEW_SIZE_SECTORS(num_sectors); } -static sector_t calc_num_sectors(mdk_rdev_t *rdev, unsigned chunk_size) -{ - sector_t num_sectors = rdev->sb_start; - - if (chunk_size) { - unsigned chunk_sects = chunk_size>>9; - sector_div(num_sectors, chunk_sects); - num_sectors *= chunk_sects; - } - return num_sectors; -} - static int alloc_disk_sb(mdk_rdev_t * rdev) { if (rdev->sb_page) @@ -839,7 +827,7 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version else ret = 0; } - rdev->sectors = calc_num_sectors(rdev, sb->chunk_size); + rdev->sectors = rdev->sb_start; if (rdev->sectors < sb->size * 2 && sb->level > 1) /* "this cannot possibly happen" ... */ @@ -1251,13 +1239,6 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) if (rdev->sectors < le64_to_cpu(sb->data_size)) return -EINVAL; rdev->sectors = le64_to_cpu(sb->data_size); - if (le32_to_cpu(sb->chunksize)) { - int chunk_sects = le32_to_cpu(sb->chunksize); - sector_t chunks = rdev->sectors; - sector_div(chunks, chunk_sects); - rdev->sectors = chunks * chunk_sects; - } - if (le64_to_cpu(sb->size) > rdev->sectors) return -EINVAL; return ret; @@ -3983,11 +3964,9 @@ static int start_dirty_degraded; static int do_md_run(mddev_t * mddev) { int err; - int chunk_size; mdk_rdev_t *rdev; struct gendisk *disk; struct mdk_personality *pers; - char b[BDEVNAME_SIZE]; if (list_empty(&mddev->disks)) /* cannot run an array with no devices.. */ @@ -4005,30 +3984,6 @@ static int do_md_run(mddev_t * mddev) analyze_sbs(mddev); } - chunk_size = mddev->chunk_sectors << 9; - - if (chunk_size) { - if (chunk_size > MAX_CHUNK_SIZE) { - printk(KERN_ERR "too big chunk_size: %d > %d\n", - chunk_size, MAX_CHUNK_SIZE); - return -EINVAL; - } - /* devices must have minimum size of one chunk */ - list_for_each_entry(rdev, &mddev->disks, same_set) { - if (test_bit(Faulty, &rdev->flags)) - continue; - if (rdev->sectors < chunk_size / 512) { - printk(KERN_WARNING - "md: Dev %s smaller than chunk_size:" - " %llu < %d\n", - bdevname(rdev->bdev,b), - (unsigned long long)rdev->sectors, - chunk_size / 512); - return -EINVAL; - } - } - } - if (mddev->level != LEVEL_NONE) request_module("md-level-%d", mddev->level); else if (mddev->clevel[0]) @@ -4842,8 +4797,7 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info) rdev->sb_start = rdev->bdev->bd_inode->i_size / 512; } else rdev->sb_start = calc_dev_sboffset(rdev->bdev); - rdev->sectors = calc_num_sectors(rdev, - mddev->chunk_sectors << 9); + rdev->sectors = rdev->sb_start; err = bind_rdev_to_array(rdev, mddev); if (err) { @@ -4913,7 +4867,7 @@ static int hot_add_disk(mddev_t * mddev, dev_t dev) else rdev->sb_start = rdev->bdev->bd_inode->i_size / 512; - rdev->sectors = calc_num_sectors(rdev, mddev->chunk_sectors << 9); + rdev->sectors = rdev->sb_start; if (test_bit(Faulty, &rdev->flags)) { printk(KERN_WARNING |