diff options
| author | Logan Gunthorpe <logang@deltatee.com> | 2017-06-05 14:00:52 -0600 |
|---|---|---|
| committer | Jon Mason <jdmason@kudzu.us> | 2017-06-19 14:24:41 -0400 |
| commit | cb827ee6ccc3e480f0d9c0e8e53eef55be5b0414 (patch) | |
| tree | 4236fb39fbd427165810e0980bd4fa34e0d20f6d /lib/lockref.c | |
| parent | 07b0b22b3e58824f70b9188d085d400069ca3240 (diff) | |
ntb_transport: fix qp count bug
In cases where there are more mw's than spads/2-2, the mw count gets
reduced to match the limitation. ntb_transport also tries to ensure that
there are fewer qps than mws but uses the full mw count instead of
the reduced one. When this happens, the math in
'ntb_transport_setup_qp_mw' will get confused and result in a kernel
paging request bug.
This patch fixes the bug by reducing qp_count to the reduced mw count
instead of the full mw count.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers")
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'lib/lockref.c')
0 files changed, 0 insertions, 0 deletions