From: Steve Wise <swise@opengridcomputing.com>
Date: Wed, 19 Mar 2014 12:14:45 +0000 (+0530)
Subject: RDMA/cxgb4: Save the correct map length for fast_reg_page_lists
X-Git-Tag: v3.15-rc1~103^2^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eda6d1d1b7932f90d55583f8f3835dd7d6b32543;p=pandora-kernel.git

RDMA/cxgb4: Save the correct map length for fast_reg_page_lists

We cannot save the mapped length using the rdma max_page_list_len field
of the ib_fast_reg_page_list struct because the core code uses it.  This
results in an incorrect unmap of the page list in c4iw_free_fastreg_pbl().

I found this with dma mapping debugging enabled in the kernel.  The
fix is to save the length in the c4iw_fr_page_list struct.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---

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