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Diffstat (limited to 'pkg/sentry/kernel/sessions.go')
-rw-r--r--pkg/sentry/kernel/sessions.go28
1 files changed, 11 insertions, 17 deletions
diff --git a/pkg/sentry/kernel/sessions.go b/pkg/sentry/kernel/sessions.go
index 0e19286de..df5c8421b 100644
--- a/pkg/sentry/kernel/sessions.go
+++ b/pkg/sentry/kernel/sessions.go
@@ -16,7 +16,6 @@ package kernel
import (
"gvisor.dev/gvisor/pkg/abi/linux"
- "gvisor.dev/gvisor/pkg/refs"
"gvisor.dev/gvisor/pkg/sentry/arch"
"gvisor.dev/gvisor/pkg/syserror"
)
@@ -31,7 +30,7 @@ type ProcessGroupID ThreadID
//
// +stateify savable
type Session struct {
- refs refs.AtomicRefCount
+ SessionRefs
// leader is the originator of the Session.
//
@@ -61,16 +60,11 @@ type Session struct {
sessionEntry
}
-// incRef grabs a reference.
-func (s *Session) incRef() {
- s.refs.IncRef()
-}
-
-// decRef drops a reference.
+// DecRef drops a reference.
//
// Precondition: callers must hold TaskSet.mu for writing.
-func (s *Session) decRef() {
- s.refs.DecRefWithDestructor(func() {
+func (s *Session) DecRef() {
+ s.SessionRefs.DecRef(func() {
// Remove translations from the leader.
for ns := s.leader.pidns; ns != nil; ns = ns.parent {
id := ns.sids[s]
@@ -87,7 +81,7 @@ func (s *Session) decRef() {
//
// +stateify savable
type ProcessGroup struct {
- refs refs.AtomicRefCount // not exported.
+ refs ProcessGroupRefs
// originator is the originator of the group.
//
@@ -162,7 +156,7 @@ func (pg *ProcessGroup) decRefWithParent(parentPG *ProcessGroup) {
}
alive := true
- pg.refs.DecRefWithDestructor(func() {
+ pg.refs.DecRef(func() {
alive = false // don't bother with handleOrphan.
// Remove translations from the originator.
@@ -174,7 +168,7 @@ func (pg *ProcessGroup) decRefWithParent(parentPG *ProcessGroup) {
// Remove the list of process groups.
pg.session.processGroups.Remove(pg)
- pg.session.decRef()
+ pg.session.DecRef()
})
if alive {
pg.handleOrphan()
@@ -301,7 +295,7 @@ func (tg *ThreadGroup) createSession() error {
id: SessionID(id),
leader: tg,
}
- s.refs.EnableLeakCheck("kernel.Session")
+ s.EnableLeakCheck()
// Create a new ProcessGroup, belonging to that Session.
// This also has a single reference (assigned below).
@@ -315,7 +309,7 @@ func (tg *ThreadGroup) createSession() error {
session: s,
ancestors: 0,
}
- pg.refs.EnableLeakCheck("kernel.ProcessGroup")
+ pg.refs.EnableLeakCheck()
// Tie them and return the result.
s.processGroups.PushBack(pg)
@@ -395,13 +389,13 @@ func (tg *ThreadGroup) CreateProcessGroup() error {
//
// We manually adjust the ancestors if the parent is in the same
// session.
- tg.processGroup.session.incRef()
+ tg.processGroup.session.IncRef()
pg := ProcessGroup{
id: ProcessGroupID(id),
originator: tg,
session: tg.processGroup.session,
}
- pg.refs.EnableLeakCheck("kernel.ProcessGroup")
+ pg.refs.EnableLeakCheck()
if tg.leader.parent != nil && tg.leader.parent.tg.processGroup.session == pg.session {
pg.ancestors++