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f01b9f7339
This patch changes isert_reg_rdma_frwr() to not use FRMR for single dma entry requests from small I/Os, in order to avoid the associated memory registration overhead. Using DMA MR is sufficient here for the single dma entry requests, and addresses a >= v3.12 performance regression. Signed-off-by: Vu Pham <vu@mellanox.com> Cc: <stable@vger.kernel.org> # v3.12+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> |
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