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libcontainer/intelrdt: rm init() from intelrdt.go

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Use sync.Once to init Intel RDT when needed for a small speedup to
operations which do not require Intel RDT.

Simplify IntelRdtManager initialization in LinuxFactory.

Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com>
This commit is contained in:
Xiaochen Shen
2020-12-16 23:37:31 +08:00
parent 544048b865
commit 325a74ddec
5 changed files with 63 additions and 54 deletions
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utils_linux.go
-4
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@@ -13,7 +13,6 @@ import (
"github.com/opencontainers/runc/libcontainer"
"github.com/opencontainers/runc/libcontainer/cgroups/systemd"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/intelrdt"
"github.com/opencontainers/runc/libcontainer/specconv"
"github.com/opencontainers/runc/libcontainer/utils"
"github.com/opencontainers/runtime-spec/specs-go"
@@ -57,9 +56,6 @@ func loadFactory(context *cli.Context) (libcontainer.Factory, error) {
}
intelRdtManager := libcontainer.IntelRdtFs
if !intelrdt.IsCATEnabled() && !intelrdt.IsMBAEnabled() {
intelRdtManager = nil
}
// We resolve the paths for {newuidmap,newgidmap} from the context of runc,
// to avoid doing a path lookup in the nsexec context. TODO: The binary