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| author | David S. Miller <davem@davemloft.net> | 2018-01-11 21:27:54 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-11 22:13:42 -0500 |
| commit | 19d28fbd306e7ae7c1acf05c3e6968b56f0d196b (patch) | |
| tree | 0584a3a4639424733bad7714796f858aa7addee7 /Documentation/networking | |
| parent | 8c2e6c904fd8701a8d02d2bdb86871dc3ec4e85b (diff) | |
| parent | 1545dec46db3858bbce84c2065b579e2925706ab (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
BPF alignment tests got a conflict because the registers
are output as Rn_w instead of just Rn in net-next, and
in net a fixup for a testcase prohibits logical operations
on pointers before using them.
Also, we should attempt to patch BPF call args if JIT always on is
enabled. Instead, if we fail to JIT the subprogs we should pass
an error back up and fail immediately.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/index.rst | 2 | ||||
| -rw-r--r-- | Documentation/networking/msg_zerocopy.rst | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/networking/index.rst b/Documentation/networking/index.rst index 66e620866245..7d4b15977d61 100644 --- a/Documentation/networking/index.rst +++ b/Documentation/networking/index.rst @@ -9,6 +9,7 @@ Contents: batman-adv kapi z8530book + msg_zerocopy .. only:: subproject @@ -16,4 +17,3 @@ Contents: ======= * :ref:`genindex` - diff --git a/Documentation/networking/msg_zerocopy.rst b/Documentation/networking/msg_zerocopy.rst index 77f6d7e25cfd..291a01264967 100644 --- a/Documentation/networking/msg_zerocopy.rst +++ b/Documentation/networking/msg_zerocopy.rst @@ -72,6 +72,10 @@ this flag, a process must first signal intent by setting a socket option: if (setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY, &one, sizeof(one))) error(1, errno, "setsockopt zerocopy"); +Setting the socket option only works when the socket is in its initial +(TCP_CLOSED) state. Trying to set the option for a socket returned by accept(), +for example, will lead to an EBUSY error. In this case, the option should be set +to the listening socket and it will be inherited by the accepted sockets. Transmission ------------ |