containerd/vendor/go.etcd.io/bbolt/mlock_unix.go
Daniel Canter e634f04d8c go.mod: update kubernetes to v1.22.0
This brings in some cri api changes for cgroups, Windows pod sandbox security
context changes and some new fields for the Windows version of a privileged
container.

This also unfortunately bumps the prometheus client, grpc middleware, bolt
and klog :(

Signed-off-by: Daniel Canter <dcanter@microsoft.com>
2021-08-09 16:16:54 -04:00

37 lines
697 B
Go

// +build !windows
package bbolt
import "golang.org/x/sys/unix"
// mlock locks memory of db file
func mlock(db *DB, fileSize int) error {
sizeToLock := fileSize
if sizeToLock > db.datasz {
// Can't lock more than mmaped slice
sizeToLock = db.datasz
}
if err := unix.Mlock(db.dataref[:sizeToLock]); err != nil {
return err
}
return nil
}
//munlock unlocks memory of db file
func munlock(db *DB, fileSize int) error {
if db.dataref == nil {
return nil
}
sizeToUnlock := fileSize
if sizeToUnlock > db.datasz {
// Can't unlock more than mmaped slice
sizeToUnlock = db.datasz
}
if err := unix.Munlock(db.dataref[:sizeToUnlock]); err != nil {
return err
}
return nil
}