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(parent: 6bdef10) | patch
net: support 64bit rates for getsockopt(SO_MAX_PACING_RATE)
authorEric Dumazet <edumazet@google.com>
Thu, 28 Feb 2019 23:17:28 +0000 (15:17 -0800)
committerDavid S. Miller <davem@davemloft.net>
Sat, 2 Mar 2019 07:08:30 +0000 (23:08 -0800)
commit677f136c6b88ac09a5b1c84dc4473e5901cf218b
treeee7160784b8e3eca7187baa41bc586debd9c7143tree | snapshot
parent6bdef102dae9d24d8eafc9ddfd2bf94a67be3bdccommit | diff
net: support 64bit rates for getsockopt(SO_MAX_PACING_RATE)

For legacy applications using 32bit variable, SO_MAX_PACING_RATE
has to cap the returned value to 0xFFFFFFFF, meaning that
rates above 34.35 Gbit are capped.

This patch allows applications to read socket pacing rate
at full resolution, if they provide a 64bit variable to store it,
and the kernel is 64bit.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/sock.c diff | blob | history
Domain: System / Kernel;