2016-02-28 20:44, Huawei Xie:

v7 changes:
 rte_pktmbuf_alloc_bulk isn't exported as API, so shouldn't be listed in
version map

v6 changes:
 reflect the changes in release notes and library version map file
 revise our duff's code style a bit to make it more readable

v5 changes:
 add comment about duff's device and our variant implementation

v3 changes:
 move while after case 0
 add context about duff's device and why we use while loop in the commit
message

v2 changes:
 unroll the loop a bit to help the performance

rte_pktmbuf_alloc_bulk allocates a bulk of packet mbufs.

There is related thread about this bulk API.
http://dpdk.org/dev/patchwork/patch/4718/
Thanks to Konstantin's loop unrolling.

Attached the wiki page about duff's device. It explains the performance
optimization through loop unwinding, and also the most dramatic use of
case label fall-through.
https://en.wikipedia.org/wiki/Duff%27s_device

In this implementation, while() loop is used because we could not assume
count is strictly positive. Using while() loop saves one line of check.

Signed-off-by: Gerald Rogers <redacted>
Signed-off-by: Huawei Xie <redacted>
Acked-by: Konstantin Ananyev <redacted>
Acked-by: Olivier Matz <redacted>

Applied, thanks