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shimv2: add a comment in checkAndMount()

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In checkAndMount(), it is not clear why we check IsBlockDevice() and if
DisableBlockDeviceUse == false and then only return "false, nil" instead
of "false, err". Adding a comment to make it a bit more readable.

Fixes: #732
Signed-off-by: Qian Cai <cai@redhat.com>
This commit is contained in:
Qian Cai 2020-09-15 09:06:06 -04:00
parent 059e6426e9
commit 7225460a68
1 changed files with 1 additions and 0 deletions
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src/runtime/containerd-shim-v2/create.go
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@ -179,6 +179,7 @@ func checkAndMount(s *service, r *taskAPI.CreateTaskRequest) (bool, error) {
if len(r.Rootfs) == 1 {
m := r.Rootfs[0]
// Plug the block backed rootfs directly instead of mounting it.
if katautils.IsBlockDevice(m.Source) && !s.config.HypervisorConfig.DisableBlockDeviceUse {
return false, nil
}