[dm-devel] [PATCH 0/2] introduce interface to list all badblocks

[yangerkun]

We can add/remove/query the badblocks, but no interface to list all
badblocks when we want to know the badblocks we ever set still
available. Add message listbadblocks to do this.

To list all bad blocks in the bad block list, run the following
message command:

    $ sudo dmsetup message dust1 0 listbadblocks

The following message will appear, listing one bad block number per
line (using an example device with blocks 1 and 2 in the bad block
list):

device-mapper: dust: dust_list_badblocks: badblocks list below:
    device-mapper: dust: bad block: 1
    device-mapper: dust: bad block: 2
    device-mapper: dust: dust_list_badblocks: badblocks list end.


yangerkun (2):
  dm dust: add interface to list all badblocks
  dm dust: introduce listbadblocks in the rst

 .../admin-guide/device-mapper/dm-dust.rst     | 18 ++++++++++++++++
 drivers/md/dm-dust.c                          | 21 +++++++++++++++++++
 2 files changed, 39 insertions(+)

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2.23.0.rc2.8.gff66981f45