github/kata-containers
1
0
Fork 1
mirror of https://github.com/kata-containers/kata-containers.git synced 2025-04-30 04:34:27 +00:00
Code Issues Projects Releases Wiki Activity

clh: fast exit from isClhRunning if the process was stopped

Browse Source 
Use atomic operations instead of acquiring a mutex in isClhRunning.
This stops isClhRunning from generating a deadlock by trying to
reacquire an already-acquired lock when called via StopVM->terminate.

Signed-off-by: Alexandru Matei <alexandru.matei@uipath.com>
This commit is contained in:
Alexandru Matei 2022-11-10 14:08:14 +02:00
parent 2631b08ff1
commit 9ef68e0c7a
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/runtime/virtcontainers/clh.go
View File

@ -1401,6 +1401,10 @@ func (clh *cloudHypervisor) isClhRunning(timeout uint) (bool, error) {
pid := clh.state.PID pid := clh.state.PID
if atomic.LoadInt32(&clh.stopped) != 0 {
return false, nil
}
if err := syscall.Kill(pid, syscall.Signal(0)); err != nil { if err := syscall.Kill(pid, syscall.Signal(0)); err != nil {
return false, nil return false, nil
} }