md: Make calc_dev_sboffset() return a sector count.
As BLOCK_SIZE_BITS is 10 and MD_NEW_SIZE_SECTORS(2 * x) = 2 * NEW_SIZE_BLOCKS(x), the return value of calc_dev_sboffset() doubles. Fix up all three callers accordingly. Signed-off-by: Andre Noll <maan@systemlinux.org> Signed-off-by: Neil Brown <neilb@suse.de>
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@ -347,10 +347,11 @@ static struct mdk_personality *find_pers(int level, char *clevel)
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return NULL;
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return NULL;
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}
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}
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/* return the offset of the super block in 512byte sectors */
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static inline sector_t calc_dev_sboffset(struct block_device *bdev)
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static inline sector_t calc_dev_sboffset(struct block_device *bdev)
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{
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{
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sector_t size = bdev->bd_inode->i_size >> BLOCK_SIZE_BITS;
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sector_t num_sectors = bdev->bd_inode->i_size / 512;
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return MD_NEW_SIZE_BLOCKS(size);
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return MD_NEW_SIZE_SECTORS(num_sectors);
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}
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}
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static sector_t calc_num_sectors(mdk_rdev_t *rdev, unsigned chunk_size)
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static sector_t calc_num_sectors(mdk_rdev_t *rdev, unsigned chunk_size)
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@ -673,7 +674,7 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version
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*
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*
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* It also happens to be a multiple of 4Kb.
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* It also happens to be a multiple of 4Kb.
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*/
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*/
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sb_offset = calc_dev_sboffset(rdev->bdev);
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sb_offset = calc_dev_sboffset(rdev->bdev) / 2;
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rdev->sb_offset = sb_offset;
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rdev->sb_offset = sb_offset;
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ret = read_disk_sb(rdev, MD_SB_BYTES);
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ret = read_disk_sb(rdev, MD_SB_BYTES);
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@ -1006,7 +1007,7 @@ super_90_rdev_size_change(mdk_rdev_t *rdev, unsigned long long size)
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size *= 2; /* convert to sectors */
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size *= 2; /* convert to sectors */
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if (rdev->mddev->bitmap_offset)
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if (rdev->mddev->bitmap_offset)
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return 0; /* can't move bitmap */
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return 0; /* can't move bitmap */
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rdev->sb_offset = calc_dev_sboffset(rdev->bdev);
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rdev->sb_offset = calc_dev_sboffset(rdev->bdev) / 2;
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if (!size || size > rdev->sb_offset*2)
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if (!size || size > rdev->sb_offset*2)
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size = rdev->sb_offset*2;
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size = rdev->sb_offset*2;
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md_super_write(rdev->mddev, rdev, rdev->sb_offset << 1, rdev->sb_size,
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md_super_write(rdev->mddev, rdev, rdev->sb_offset << 1, rdev->sb_size,
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@ -4356,7 +4357,7 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info)
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printk(KERN_INFO "md: nonpersistent superblock ...\n");
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printk(KERN_INFO "md: nonpersistent superblock ...\n");
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rdev->sb_offset = rdev->bdev->bd_inode->i_size >> BLOCK_SIZE_BITS;
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rdev->sb_offset = rdev->bdev->bd_inode->i_size >> BLOCK_SIZE_BITS;
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} else
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} else
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rdev->sb_offset = calc_dev_sboffset(rdev->bdev);
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rdev->sb_offset = calc_dev_sboffset(rdev->bdev) / 2;
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rdev->size = calc_num_sectors(rdev, mddev->chunk_size) / 2;
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rdev->size = calc_num_sectors(rdev, mddev->chunk_size) / 2;
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err = bind_rdev_to_array(rdev, mddev);
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err = bind_rdev_to_array(rdev, mddev);
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@ -4423,7 +4424,7 @@ static int hot_add_disk(mddev_t * mddev, dev_t dev)
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}
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}
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if (mddev->persistent)
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if (mddev->persistent)
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rdev->sb_offset = calc_dev_sboffset(rdev->bdev);
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rdev->sb_offset = calc_dev_sboffset(rdev->bdev) / 2;
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else
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else
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rdev->sb_offset =
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rdev->sb_offset =
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rdev->bdev->bd_inode->i_size >> BLOCK_SIZE_BITS;
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rdev->bdev->bd_inode->i_size >> BLOCK_SIZE_BITS;
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