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| author | Anup Patel <anup.patel@broadcom.com> | 2017-05-15 10:34:53 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-13 19:47:58 +0200 |
| commit | e226b4e898c90a16d09e66eaf1fe939df02ccd6e (patch) | |
| tree | 00f7f1708b45d661612a20b05fb5f0626cd6baf6 /.gitignore | |
| parent | eb5562d076c32904e8e7fc65f597815b021dc30b (diff) | |
async_tx: Fix DMA_PREP_FENCE usage in do_async_gen_syndrome()
[ Upstream commit baae03a0e2497f49704628fd0aaf993cf98e1b99 ]
The DMA_PREP_FENCE is to be used when preparing Tx descriptor if output
of Tx descriptor is to be used by next/dependent Tx descriptor.
The DMA_PREP_FENSE will not be set correctly in do_async_gen_syndrome()
when calling dma->device_prep_dma_pq() under following conditions:
1. ASYNC_TX_FENCE not set in submit->flags
2. DMA_PREP_FENCE not set in dma_flags
3. src_cnt (= (disks - 2)) is greater than dma_maxpq(dma, dma_flags)
This patch fixes DMA_PREP_FENCE usage in do_async_gen_syndrome() taking
inspiration from do_async_xor() implementation.
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '.gitignore')
0 files changed, 0 insertions, 0 deletions