[dm-devel] Receiving device failure/removal notification within a dm-target

[Siddharth Choudhuri]

Hi,

I want to write a clean up function in a device mapper target if the
underlying block device fails or if it is removed. This is similar to, for
example, having a register_reboot_notifier() inside a dm target so that the
target can take appropriate action on a system reboot.

What would be the best way to handle this ? Should I look at the multi path
code for any hints ? Appreciate any pointers to this.

Thanks,
-Sid
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