linux

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NeilBrown b02bab6b0f async_tx: use GFP_NOWAIT rather than GFP_IO

These async_XX functions are called from md/raid5 in an atomic
section, between get_cpu() and put_cpu(), so they must not sleep.
So use GFP_NOWAIT rather than GFP_IO.

Dan Williams writes: Longer term async_tx needs to be merged into md
directly as we can allocate this unmap data statically per-stripe
rather than per request.

Fixed: 7476bd79fc01 ("async_pq: convert to dmaengine_unmap_data")
Cc: stable@vger.kernel.org (v3.13+)
Reported-and-tested-by: Stanislav Samsonov <slava@annapurnalabs.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

2016-01-07 11:06:18 +05:30

async_memcpy.c

async_tx: use GFP_NOWAIT rather than GFP_IO

2016-01-07 11:06:18 +05:30

async_pq.c

async_tx: use GFP_NOWAIT rather than GFP_IO

2016-01-07 11:06:18 +05:30

async_raid6_recov.c

async_tx: use GFP_NOWAIT rather than GFP_IO

2016-01-07 11:06:18 +05:30

async_tx.c

async_tx: use DMA_COMPLETE for dma completion status