ZERO_BUFFER_SIZE is in bytes but it is easier to calculate max
write_zeroes in blocks first and then get the minimum between max
write_zeroes in blocks and remaining_num_blocks rather than converting
remaining_num_blocks to num_bytes. This is helpful to store the result
into bdev->max_write_zeroes for fallback case.
We have one small fix in this patch. As we recently fixed
bdev_io_get_max_buf_len(), to get aligned length,
spdk_bdev_get_buf_align() - 1 is correct.
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: I104bc837c9eee1303664bfdb3559b0e840d6f0e5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17910
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
2dcaa3851f