[PATCH] BLOCK: delay all uevents until partition table is scanned

[BLOCK] delay all uevents until partition table is scanned

Here we delay the annoucement of all block device events until the
disk's partition table is scanned and all partition devices are already
created and sysfs is populated.

We have a bunch of old bugs for removable storage handling where we
probe successfully for a filesystem on the raw disk, but at the
same time the kernel recognizes a partition table and creates partition
devices.
Currently there is no sane way to tell if partitions will show up or not
at the time the disk device is announced to userspace. With the delayed
events we can simply skip any probe for a filesystem on the raw disk when
we find already present partitions.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 10a27f29d692..2ef845b35175 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -105,6 +105,7 @@ struct gendisk {
                                          * disks that can't be partitioned. */
         char disk_name[32];             /* name of major driver */
         struct hd_struct **part;        /* [indexed by minor] */
+        int part_uevent_suppress;
         struct block_device_operations *fops;
         struct request_queue *queue;
         void *private_data;