From: Sagi Grimberg <sagig@mellanox.com>
Date: Sun, 18 Jan 2015 14:51:06 +0000 (+0200)
Subject: IB/iser: Fix memory regions possible leak
X-Git-Tag: fixes-v4.0-rc1~31^2^3~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6606e6a2ff2710b473838b291dc533cd8fc1471f;p=pandora-kernel.git

IB/iser: Fix memory regions possible leak

When teardown process starts during live IO, we need to keep the
memory regions pool (frmr/fmr) until all in-flight tasks are properly
released, since each task may return a memory region to the pool. In
order to do this, we pass a destroy flag to iser_free_ib_conn_res to
indicate we can destroy the device and the memory regions
pool. iser_conn_release will pass it as true and also DEVICE_REMOVAL
event (we need to let the device to properly remove).

Also, Since we conditionally call iser_free_rx_descriptors,
remove the extra check on iser_conn->rx_descs.

Fixes: 5426b1711fd0 ("IB/iser: Collapse cleanup and disconnect handlers")
Reported-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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