nvmet: implement the changed namespaces log

Just keep a per-controller buffer of changed namespaces and copy it out
in the get log page implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Christoph Hellwig 2018-05-25 17:16:09 +02:00
commit c16734ea98
3 changed files with 76 additions and 9 deletions