kernel/linux.git/Documentation/networking/msg_zerocopy.rst, branch v5.19

docs: use the lore redirector everywhere

2021-10-12T19:58:19+00:00

Change all links from using the lkml redirector to the lore redirector, as the kernel.org admin recently indicated: we shouldn't be using lkml.kernel.org anymore because the domain can create confusion, as it indicates it is only valid for messages sent to the LKML; the convention has been to use https://lore.kernel.org/r/msgid for this reason. In this process also change three links from using http to https. Link: https://lore.kernel.org/r/20211006170025.qw3glxvocczfuhar@meerkat.local CC: Thomas Gleixner CC: Ingo Molnar CC: Borislav Petkov CC: Hu Haowen CC: Alex Shi CC: Federico Vaga Signed-off-by: Thorsten Leemhuis Reviewed-by: Konstantin Ryabitsev Link: https://lore.kernel.org/r/5bb55bac6ba10fafab19bf2b21572dd0e2f8cea2.1633593385.git.linux@leemhuis.info Signed-off-by: Jonathan Corbet

doc: fix link to MSG_ZEROCOPY patchset

2019-03-18T16:50:21+00:00

Use https and link to the patch directly. Signed-off-by: Tobias Klauser Acked-by: Willem de Bruijn Signed-off-by: David S. Miller

doc: Mention MSG_ZEROCOPY implementation for UDP

2019-02-17T23:30:02+00:00

MSG_ZEROCOPY implementation for UDP was merged in v5.0, 6e360f733113 ("Merge branch 'udp-msg_zerocopy'"). Signed-off-by: Petr Vorel Signed-off-by: David S. Miller

sock: remove zerocopy sockopt restriction on closed tcp state

2018-03-14T16:51:28+00:00

Socket option SO_ZEROCOPY determines whether the kernel ignores or processes flag MSG_ZEROCOPY on subsequent send calls. This to avoid changing behavior for legacy processes. Limiting the state change to closed sockets is annoying with passive sockets and not necessary for correctness. Once created, zerocopy skbs are processed based on their private state, not this socket flag. Remove the constraint. Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller

doc: clarification about setting SO_ZEROCOPY

2018-01-10T20:01:49+00:00

Signed-off-by: Kornilios Kourtis Acked-by: Willem de Bruijn Signed-off-by: David S. Miller

doc: document MSG_ZEROCOPY

2017-09-01T17:39:35+00:00

Documentation for this feature was missing from the patchset. Copied a lot from the netdev 2.1 paper, addressing some small interface changes since then. Changes v1 -> v2 - change email discussion URL format - clarify that u32 counter is per-syscall, unsigned and wraps after UINT_MAX calls - describe errno on send failure specific to MSG_ZEROCOPY - a few very minor rewordings Signed-off-by: Willem de Bruijn Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller