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From: Kay Sievers on 30 Jul 2010 05:40 From: Kay Sievers <kay.sievers(a)vrfy.org> Subject: block: move del_gendisk() from fs/partitions/check.c to block/genhd.c Disk code belongs into genhd, not into the partition scanner code. Signed-Off-By: Kay Sievers <kay.sievers(a)vrfy.org> --- block/genhd.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++ fs/partitions/check.c | 51 ------------------------------------------------- 2 files changed, 52 insertions(+), 51 deletions(-) --- a/block/genhd.c +++ b/block/genhd.c @@ -1344,3 +1344,55 @@ int invalidate_partition(struct gendisk } EXPORT_SYMBOL(invalidate_partition); + +void del_gendisk(struct gendisk *disk) +{ + struct disk_part_iter piter; + struct hd_struct *part; + + /* invalidate stuff */ + disk_part_iter_init(&piter, disk, + DISK_PITER_INCL_EMPTY | DISK_PITER_REVERSE); + while ((part = disk_part_iter_next(&piter))) { + invalidate_partition(disk, part->partno); + delete_partition(disk, part->partno); + } + disk_part_iter_exit(&piter); + + invalidate_partition(disk, 0); + blk_free_devt(disk_to_dev(disk)->devt); + set_capacity(disk, 0); + disk->flags &= ~GENHD_FL_UP; + unlink_gendisk(disk); + part_stat_set_all(&disk->part0, 0); + disk->part0.stamp = 0; + + kobject_put(disk->part0.holder_dir); + kobject_put(disk->slave_dir); + disk->driverfs_dev = NULL; +#ifndef CONFIG_SYSFS_DEPRECATED + sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk))); +#endif + device_del(disk_to_dev(disk)); +} + +unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p) +{ + struct address_space *mapping = bdev->bd_inode->i_mapping; + struct page *page; + + page = read_mapping_page(mapping, (pgoff_t)(n >> (PAGE_CACHE_SHIFT-9)), + NULL); + if (!IS_ERR(page)) { + if (PageError(page)) + goto fail; + p->v = page; + return (unsigned char *)page_address(page) + ((n & ((1 << (PAGE_CACHE_SHIFT - 9)) - 1)) << 9); +fail: + page_cache_release(page); + } + p->v = NULL; + return NULL; +} + +EXPORT_SYMBOL(read_dev_sector); --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -619,54 +619,3 @@ rescan: return 0; } -unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p) -{ - struct address_space *mapping = bdev->bd_inode->i_mapping; - struct page *page; - - page = read_mapping_page(mapping, (pgoff_t)(n >> (PAGE_CACHE_SHIFT-9)), - NULL); - if (!IS_ERR(page)) { - if (PageError(page)) - goto fail; - p->v = page; - return (unsigned char *)page_address(page) + ((n & ((1 << (PAGE_CACHE_SHIFT - 9)) - 1)) << 9); -fail: - page_cache_release(page); - } - p->v = NULL; - return NULL; -} - -EXPORT_SYMBOL(read_dev_sector); - -void del_gendisk(struct gendisk *disk) -{ - struct disk_part_iter piter; - struct hd_struct *part; - - /* invalidate stuff */ - disk_part_iter_init(&piter, disk, - DISK_PITER_INCL_EMPTY | DISK_PITER_REVERSE); - while ((part = disk_part_iter_next(&piter))) { - invalidate_partition(disk, part->partno); - delete_partition(disk, part->partno); - } - disk_part_iter_exit(&piter); - - invalidate_partition(disk, 0); - blk_free_devt(disk_to_dev(disk)->devt); - set_capacity(disk, 0); - disk->flags &= ~GENHD_FL_UP; - unlink_gendisk(disk); - part_stat_set_all(&disk->part0, 0); - disk->part0.stamp = 0; - - kobject_put(disk->part0.holder_dir); - kobject_put(disk->slave_dir); - disk->driverfs_dev = NULL; -#ifndef CONFIG_SYSFS_DEPRECATED - sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk))); -#endif - device_del(disk_to_dev(disk)); -} -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |