de124f4273
The newly added function nvmet_ns_revalidate() does update the ns size in the identify namespace in-core target data structure when host issues id-ns command. This can lead to host having inconsistencies between size of the namespace present in the id-ns command result and size of the corresponding block device until host scans the namespaces explicitly. To avoid this scenario generate AEN if old size is not same as the new one in nvmet_ns_revalidate(). This will allow automatic AEN generation when host calls id-ns command and also allows target to install userspace rules so that it can trigger nvmet_ns_revalidate() (using configfs interface with the help of next patch) resulting in appropriate AEN generation when underlying namespace size change is detected. Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Reviewed-by: Sagi Grimberg <sagi@grimbeg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> |
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