Move the disk / partition invalidation into a helper. This will make
reading del_gendisk easier to read, in preparation for adding support
to add error handling later on register_disk() and to later share more
code with del_gendisk.
This change has no functional changes.
Signed-off-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
---
block/genhd.c | 48 ++++++++++++++++++++++++++----------------------
1 file changed, 26 insertions(+), 22 deletions(-)
diff --git a/block/genhd.c b/block/genhd.c
index 484cda981b4e..40a34981f9e2 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -438,6 +438,31 @@ static void disk_announce(struct gendisk *disk)
disk_uevent(disk, KOBJ_ADD);
}
+static void disk_invalidate(struct gendisk *disk)
+{
+ if (!(disk->flags & GENHD_FL_HIDDEN)) {
+ sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi");
+
+ /*
+ * Unregister bdi before releasing device numbers (as they can
+ * get reused and we'd get clashes in sysfs).
+ */
+ bdi_unregister(disk->queue->backing_dev_info);
+ }
+
+ blk_unregister_queue(disk);
+
+ kobject_put(disk->part0->bd_holder_dir);
+ kobject_put(disk->slave_dir);
+
+ part_stat_set_all(disk->part0, 0);
+ disk->part0->bd_stamp = 0;
+ if (!sysfs_deprecated)
+ sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
+ pm_runtime_set_memalloc_noio(disk_to_dev(disk), false);
+ device_del(disk_to_dev(disk));
+}
+
static void register_disk(struct device *parent, struct gendisk *disk,
const struct attribute_group **groups)
{
@@ -614,7 +639,6 @@ void del_gendisk(struct gendisk *disk)
blk_integrity_del(disk);
disk_del_events(disk);
-
/*
* Block lookups of the disk until all bdevs are unhashed and the
* disk is marked as dead (GENHD_FL_UP cleared).
@@ -638,27 +662,7 @@ void del_gendisk(struct gendisk *disk)
disk->flags &= ~GENHD_FL_UP;
up_write(&bdev_lookup_sem);
- if (!(disk->flags & GENHD_FL_HIDDEN)) {
- sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi");
-
- /*
- * Unregister bdi before releasing device numbers (as they can
- * get reused and we'd get clashes in sysfs).
- */
- bdi_unregister(disk->queue->backing_dev_info);
- }
-
- blk_unregister_queue(disk);
-
- kobject_put(disk->part0->bd_holder_dir);
- kobject_put(disk->slave_dir);
-
- part_stat_set_all(disk->part0, 0);
- disk->part0->bd_stamp = 0;
- if (!sysfs_deprecated)
- sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
- pm_runtime_set_memalloc_noio(disk_to_dev(disk), false);
- device_del(disk_to_dev(disk));
+ disk_invalidate(disk);
}
EXPORT_SYMBOL(del_gendisk);
--
2.30.2
