linux.git/include/linux/tcp.h, branch v5.8-rc2

tcp: add tcp_sock_set_keepcnt

2020-05-28T18:11:45+00:00

Add a helper to directly set the TCP_KEEPCNT sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig 
Signed-off-by: David S. Miller

tcp: add tcp_sock_set_keepintvl

2020-05-28T18:11:45+00:00

Add a helper to directly set the TCP_KEEPINTVL sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig 
Signed-off-by: David S. Miller

tcp: add tcp_sock_set_keepidle

2020-05-28T18:11:45+00:00

Add a helper to directly set the TCP_KEEP_IDLE sockopt from kernel
space without going through a fake uaccess.

Signed-off-by: Christoph Hellwig 
Signed-off-by: David S. Miller

tcp: add tcp_sock_set_user_timeout

2020-05-28T18:11:45+00:00

Add a helper to directly set the TCP_USER_TIMEOUT sockopt from kernel
space without going through a fake uaccess.

Signed-off-by: Christoph Hellwig 
Signed-off-by: David S. Miller

tcp: add tcp_sock_set_syncnt

2020-05-28T18:11:45+00:00

Add a helper to directly set the TCP_SYNCNT sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig 
Acked-by: Sagi Grimberg 
Signed-off-by: David S. Miller

tcp: add tcp_sock_set_quickack

2020-05-28T18:11:45+00:00

Add a helper to directly set the TCP_QUICKACK sockopt from kernel space
without going through a fake uaccess.  Cleanup the callers to avoid
pointless wrappers now that this is a simple function call.

Signed-off-by: Christoph Hellwig 
Signed-off-by: David S. Miller

tcp: add tcp_sock_set_nodelay

2020-05-28T18:11:45+00:00

Add a helper to directly set the TCP_NODELAY sockopt from kernel space
without going through a fake uaccess.  Cleanup the callers to avoid
pointless wrappers now that this is a simple function call.

Signed-off-by: Christoph Hellwig 
Acked-by: Sagi Grimberg 
Acked-by: Jason Gunthorpe 
Signed-off-by: David S. Miller

tcp: add tcp_sock_set_cork

2020-05-28T18:11:45+00:00

Add a helper to directly set the TCP_CORK sockopt from kernel space
without going through a fake uaccess.  Cleanup the callers to avoid
pointless wrappers now that this is a simple function call.

Signed-off-by: Christoph Hellwig 
Signed-off-by: David S. Miller

mptcp: add new sock flag to deal with join subflows

2020-05-15T19:30:13+00:00

MP_JOIN subflows must not land into the accept queue.
Currently tcp_check_req() calls an mptcp specific helper
to detect such scenario.

Such helper leverages the subflow context to check for
MP_JOIN subflows. We need to deal also with MP JOIN
failures, even when the subflow context is not available
due allocation failure.

A possible solution would be changing the syn_recv_sock()
signature to allow returning a more descriptive action/
error code and deal with that in tcp_check_req().

Since the above need is MPTCP specific, this patch instead
uses a TCP request socket hole to add a MPTCP specific flag.
Such flag is used by the MPTCP syn_recv_sock() to tell
tcp_check_req() how to deal with the request socket.

This change is a no-op for !MPTCP build, and makes the
MPTCP code simpler. It allows also the next patch to deal
correctly with MP JOIN failure.

v1 -> v2:
 - be more conservative on drop_req initialization (Mat)

RFC -> v1:
 - move the drop_req bit inside tcp_request_sock (Eric)

Signed-off-by: Paolo Abeni 
Reviewed-by: Mat Martineau 
Reviewed-by: Christoph Paasch 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-05-07T05:10:13+00:00

Conflicts were all overlapping changes.

Signed-off-by: David S. Miller