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authorRichard Cochran <rcochran@linutronix.de>2018-07-03 15:42:48 -0700
committerDavid S. Miller <davem@davemloft.net>2018-07-04 22:30:27 +0900
commit80b14dee2bea128928537d61c333f24cb8cbb62f (patch)
tree94fda7f405d0ae225e35a2089111d3ad80006752 /net/ipv4/icmp.c
parentc47d8c2f38f805ba541496ddd7d8c3aee59b49d5 (diff)
net: Add a new socket option for a future transmit time.
This patch introduces SO_TXTIME. User space enables this option in order to pass a desired future transmit time in a CMSG when calling sendmsg(2). The argument to this socket option is a 8-bytes long struct provided by the uapi header net_tstamp.h defined as: struct sock_txtime { clockid_t clockid; u32 flags; }; Note that new fields were added to struct sock by filling a 2-bytes hole found in the struct. For that reason, neither the struct size or number of cachelines were altered. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/icmp.c')
0 files changed, 0 insertions, 0 deletions