summaryrefslogtreecommitdiffhomepage
path: root/pkg/sentry/kernel/task.go
diff options
context:
space:
mode:
Diffstat (limited to 'pkg/sentry/kernel/task.go')
-rw-r--r--pkg/sentry/kernel/task.go34
1 files changed, 34 insertions, 0 deletions
diff --git a/pkg/sentry/kernel/task.go b/pkg/sentry/kernel/task.go
index e37e23231..8452ddf5b 100644
--- a/pkg/sentry/kernel/task.go
+++ b/pkg/sentry/kernel/task.go
@@ -37,6 +37,7 @@ import (
"gvisor.dev/gvisor/pkg/sentry/usage"
"gvisor.dev/gvisor/pkg/sentry/vfs"
"gvisor.dev/gvisor/pkg/sync"
+ "gvisor.dev/gvisor/pkg/syserror"
"gvisor.dev/gvisor/pkg/usermem"
"gvisor.dev/gvisor/pkg/waiter"
)
@@ -789,6 +790,15 @@ func (t *Task) NewFDFrom(fd int32, file *fs.File, flags FDFlags) (int32, error)
return fds[0], nil
}
+// NewFDFromVFS2 is a convenience wrapper for t.FDTable().NewFDVFS2.
+//
+// This automatically passes the task as the context.
+//
+// Precondition: same as FDTable.Get.
+func (t *Task) NewFDFromVFS2(fd int32, file *vfs.FileDescription, flags FDFlags) (int32, error) {
+ return t.fdTable.NewFDVFS2(t, fd, file, flags)
+}
+
// NewFDAt is a convenience wrapper for t.FDTable().NewFDAt.
//
// This automatically passes the task as the context.
@@ -798,6 +808,15 @@ func (t *Task) NewFDAt(fd int32, file *fs.File, flags FDFlags) error {
return t.fdTable.NewFDAt(t, fd, file, flags)
}
+// NewFDAtVFS2 is a convenience wrapper for t.FDTable().NewFDAtVFS2.
+//
+// This automatically passes the task as the context.
+//
+// Precondition: same as FDTable.
+func (t *Task) NewFDAtVFS2(fd int32, file *vfs.FileDescription, flags FDFlags) error {
+ return t.fdTable.NewFDAtVFS2(t, fd, file, flags)
+}
+
// WithMuLocked executes f with t.mu locked.
func (t *Task) WithMuLocked(f func(*Task)) {
t.mu.Lock()
@@ -829,3 +848,18 @@ func (t *Task) AbstractSockets() *AbstractSocketNamespace {
func (t *Task) ContainerID() string {
return t.containerID
}
+
+// OOMScoreAdj gets the task's thread group's OOM score adjustment.
+func (t *Task) OOMScoreAdj() int32 {
+ return atomic.LoadInt32(&t.tg.oomScoreAdj)
+}
+
+// SetOOMScoreAdj sets the task's thread group's OOM score adjustment. The
+// value should be between -1000 and 1000 inclusive.
+func (t *Task) SetOOMScoreAdj(adj int32) error {
+ if adj > 1000 || adj < -1000 {
+ return syserror.EINVAL
+ }
+ atomic.StoreInt32(&t.tg.oomScoreAdj, adj)
+ return nil
+}