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Kir Kolyshkin 3292ea5862 pkg/seccomp: use sync.Once to speed up IsEnabled 
It does not make sense to check if seccomp is supported by the kernel
more than once per runtime, so let's use sync.Once to speed it up.

A quick benchmark (old implementation, before this commit, after):

BenchmarkIsEnabledOld-4           37183            27971 ns/op
BenchmarkIsEnabled-4            1252161              947 ns/op
BenchmarkIsEnabledOnce-4      666274008             2.14 ns/op

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
2021-04-16 15:52:35 -07:00
..
apparmor
Fix unsupported files exporting functions for apparmor and seccomp
2021-03-12 08:47:05 -08:00
atomic
use containerd/project header test
2020-04-22 19:35:37 -05:00
cap
Fix exported comments enforcer in CI
2021-03-12 08:47:05 -08:00
cri
Merge pull request #5286 from payall4u/optimize-cri-redirect-logs
2021-04-14 21:33:05 -04:00
dialer
Unify dialer implementations
2020-02-26 23:29:04 +02:00
ioutil
use containerd/project header test
2020-04-22 19:35:37 -05:00
netns
Allow moving netns directory into StateDir
2021-02-10 18:33:14 +01:00
oom
cgroup2: implement containerd.events.TaskOOM event
2020-06-01 14:00:13 +09:00
os
replace pkg/symlink with moby/sys/symlink
2020-10-30 00:05:15 +01:00
process
Merge pull request #4708 from kzys/enable-criu
2021-03-19 14:23:05 -04:00
progress
Fix linter errors
2019-07-14 20:49:40 -07:00
registrar
use containerd/project header test
2020-04-22 19:35:37 -05:00
runtimeoptions/v1
Update gogo/protobuf to v1.3.2
2021-01-28 12:57:50 +00:00
seccomp
pkg/seccomp: use sync.Once to speed up IsEnabled
2021-04-16 15:52:35 -07:00
seed
Seed random on ctr and containerd startup
2018-07-12 17:51:55 -07:00
seutil
Handle KVM based runtimes with selinux
2020-08-26 21:38:03 -04:00
stdio
Add logging binary support when terminal is true
2020-08-25 17:28:29 -07:00
testutil
vendor: update gotest.tools v3.0.2
2020-02-28 17:47:20 +01:00
timeout
Allow timeouts to be configured in config
2019-08-13 17:36:32 +00:00
ttrpcutil
fix dial error when clean up a dead shim
2020-03-12 10:57:55 +08:00
userns
Move RunningInUserNS() to its own package
2021-03-23 11:29:53 +01:00