lockdep_assert_held(&bdev->bd_mutex);
- return rescan_partitions(disk, bdev);
+ return rescan_partitions(disk, bdev, false);
}
EXPORT_SYMBOL(__blkdev_reread_part);
return ret;
}
-int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
+int rescan_partitions(struct gendisk *disk, struct block_device *bdev,
+ bool invalidate)
{
int ret;
if (ret)
return ret;
- if (disk->fops->revalidate_disk)
+ if (invalidate)
+ set_capacity(disk, 0);
+ else if (disk->fops->revalidate_disk)
disk->fops->revalidate_disk(disk);
- check_disk_size_change(disk, bdev, true);
+
+ check_disk_size_change(disk, bdev, !invalidate);
bdev->bd_invalidated = 0;
- if (!get_capacity(disk))
+ if (!get_capacity(disk)) {
+ /*
+ * Tell userspace that the media / partition table may have
+ * changed.
+ */
+ kobject_uevent(&disk_to_dev(disk)->kobj, KOBJ_CHANGE);
return 0;
+ }
ret = blk_add_partitions(disk, bdev);
if (ret == -EAGAIN)
return ret;
}
-int invalidate_partitions(struct gendisk *disk, struct block_device *bdev)
-{
- int res;
-
- if (!bdev->bd_invalidated)
- return 0;
-
- res = drop_partitions(disk, bdev);
- if (res)
- return res;
-
- set_capacity(disk, 0);
- check_disk_size_change(disk, bdev, false);
- bdev->bd_invalidated = 0;
- /* tell userspace that the media / partition table may have changed */
- kobject_uevent(&disk_to_dev(disk)->kobj, KOBJ_CHANGE);
-
- 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;
static void bdev_disk_changed(struct block_device *bdev, bool invalidate)
{
if (disk_part_scan_enabled(bdev->bd_disk)) {
- if (invalidate)
- invalidate_partitions(bdev->bd_disk, bdev);
- else
- rescan_partitions(bdev->bd_disk, bdev);
+ rescan_partitions(bdev->bd_disk, bdev, invalidate);
} else {
check_disk_size_change(bdev->bd_disk, bdev, !invalidate);
bdev->bd_invalidated = 0;
extern char *disk_name (struct gendisk *hd, int partno, char *buf);
extern int disk_expand_part_tbl(struct gendisk *disk, int target);
-extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev);
-extern int invalidate_partitions(struct gendisk *disk, struct block_device *bdev);
+int rescan_partitions(struct gendisk *disk, struct block_device *bdev,
+ bool invalidate);
extern struct hd_struct * __must_check add_partition(struct gendisk *disk,
int partno, sector_t start,
sector_t len, int flags,