tree 7819bc75f9c2e729d6520a91872e17a9bc3defd3
parent b7363e67b23e04c23c2a99437feefac7292a88bc
author Sagi Grimberg <sagi@grimberg.me> 1488219393 +0200
committer Doug Ledford <dledford@redhat.com> 1490409079 -0400

RDMA/iser: Fix possible mr leak on device removal event

When the rdma device is removed, we must cleanup all
the rdma resources within the DEVICE_REMOVAL event
handler to let the device teardown gracefully. When
this happens with live I/O, some memory regions are
occupied. Thus, track them too and dereg all the mr's.

We are safe with mr access by iscsi_iser_cleanup_task.

Reported-by: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>