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| author | Vu Pham <vu@mellanox.com> | 2013-11-11 17:04:29 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-04 19:05:37 (GMT) |
| commit | ba104050017de2e08c347d66f3399ea2e17bfb17 (patch) | |
| tree | 4d3ef3d48bb5de5cc5f12adb5c2f9f592a70a42d /block/blk-settings.c | |
| parent | a009902c0d2e86c28cb76a2d4e54d12f098a8ef8 (diff) | |
| download | linux-fsl-qoriq-ba104050017de2e08c347d66f3399ea2e17bfb17.tar.xz | |
iser-target: Avoid using FRMR for single dma entry requests
commit f01b9f73392b48c6cda7c2c66594c73137c776da upstream.
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>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block/blk-settings.c')
0 files changed, 0 insertions, 0 deletions