linux/include
Paolo Abeni 32d18ab1d4 net: updating dst lastusage is an unlikely event.
Since commit 0da4af00b2 ("ipv6: only update __use and lastusetime
once per jiffy at most"), updating the dst lastuse field is an
unlikely action: it happens at most once per jiffy, out of
potentially millions of calls per second.

Mark explicitly the code as such, and let the compiler generate
better code.

Note: gcc 7.2 and several older versions do actually generate
different - better - code when the unlikely() hint is in place,
avoid jump in the fast path and keeping better code locality.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-27 11:52:52 +09:00
..
acpi
asm-generic
clocksource
crypto
drm
dt-bindings
keys
kvm
linux tcp: TCP experimental option for SMC 2017-10-26 18:00:29 +09:00
math-emu
media
memory
misc
net net: updating dst lastusage is an unlikely event. 2017-10-27 11:52:52 +09:00
pcmcia
ras
rdma
scsi scsi: libiscsi: Remove iscsi_destroy_session 2017-10-02 22:23:21 -04:00
soc
sound ALSA: hda - Fix incorrect TLV callback check introduced during set_fs() removal 2017-10-18 12:27:00 +02:00
target
trace bpf: permit multiple bpf attachments for a single perf event 2017-10-25 10:47:47 +09:00
uapi ip6_tunnel: Allow rcv/xmit even if remote address is a local address 2017-10-25 10:33:27 +09:00
video
xen