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| author |   David S. Miller <davem@davemloft.net> | 2018-04-29 21:29:55 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-04-29 21:29:55 -0400 |
| commit | 5d659b1d7d7ff0598111da55af6f0337887d9b2f (patch) | |
| tree | 8b917914f2e12f287d7be8334c227dd65fa8ec8a /drivers/infiniband/ulp/opa_vnic | |
| parent | Merge branch 'dsa-mv88e6xxx-remove-Global-2-setup' (diff) | |
| parent | selftests: net: tcp_mmap must use TCP_ZEROCOPY_RECEIVE (diff) | |
| download | linux-dev-5d659b1d7d7ff0598111da55af6f0337887d9b2f.tar.xz linux-dev-5d659b1d7d7ff0598111da55af6f0337887d9b2f.zip | |
Merge branch 'tcp-mmap-rework-zerocopy-receive'
Eric Dumazet says:
====================
tcp: mmap: rework zerocopy receive
syzbot reported a lockdep issue caused by tcp mmap() support.
I implemented Andy Lutomirski nice suggestions to resolve the
issue and increase scalability as well.
First patch is adding a new getsockopt() operation and changes mmap()
behavior.
Second patch changes tcp_mmap reference program.
v4: tcp mmap() support depends on CONFIG_MMU, as kbuild bot told us.
v3: change TCP_ZEROCOPY_RECEIVE to be a getsockopt() option
instead of setsockopt(), feedback from Ka-Cheon Poon
v2: Added a missing page align of zc->length in tcp_zerocopy_receive()
Properly clear zc->recv_skip_hint in case user request was completed.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/infiniband/ulp/opa_vnic')
0 files changed, 0 insertions, 0 deletions