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Commit 8d8002f6 authored by Dan Williams's avatar Dan Williams
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async_tx: avoid the async xor_zero_sum path when src_cnt > device->max_xor



If the channel cannot perform the operation in one call to
->device_prep_dma_zero_sum, then fallback to the xor+page_is_zero path.
This only affects users with arrays larger than 16 devices on iop13xx or
32 devices on iop3xx.

Cc: <stable@kernel.org>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent f79abb62
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