diff options
| -rw-r--r-- | pkg/sentry/mm/syscalls.go | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/pkg/sentry/mm/syscalls.go b/pkg/sentry/mm/syscalls.go index 9519c7390..1a46c2105 100644 --- a/pkg/sentry/mm/syscalls.go +++ b/pkg/sentry/mm/syscalls.go @@ -463,6 +463,7 @@ func (mm *MemoryManager) MRemap(ctx context.Context, oldAddr usermem.Addr, oldSi vma.id.IncRef() } mm.vmas.Add(newAR, vma) + mm.usageAS += uint64(newAR.Length()) return newAR.Start, nil } @@ -479,14 +480,13 @@ func (mm *MemoryManager) MRemap(ctx context.Context, oldAddr usermem.Addr, oldSi // oldAR, so calling RemoveMapping could cause us to miss an invalidation // overlapping oldAR. // - // Call vseg.Value() (rather than vseg.ValuePtr()) first to make a copy of - // the vma. + // Call vseg.Value() (rather than vseg.ValuePtr()) to make a copy of the + // vma. vseg = mm.vmas.Isolate(vseg, oldAR) vma := vseg.Value() mm.vmas.Remove(vseg) - - // Insert the new vma, transferring the reference on vma.id. mm.vmas.Add(newAR, vma) + mm.usageAS = mm.usageAS - uint64(oldAR.Length()) + uint64(newAR.Length()) // Move pmas. This is technically optional for non-private pmas, which // could just go through memmap.Mappable.Translate again, but it's required |