diff options
| author | Rahat Mahmood <rahat@google.com> | 2018-12-12 13:09:10 -0800 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2018-12-12 13:09:59 -0800 |
| commit | 75e39eaa74c65b6f7cfb95addb6ac0cbcc7d951a (patch) | |
| tree | 1a6b64491851e002727a08546f1168c89b9c32aa /pkg/sentry/mm/aio_context.go | |
| parent | a2c868a098fcb51dcdf629045c5f5c0f68c2766f (diff) | |
Pass information about map writableness to filesystems.
This is necessary to implement file seals for memfds.
PiperOrigin-RevId: 225239394
Change-Id: Ib3f1ab31385afc4b24e96cd81a05ef1bebbcbb70
Diffstat (limited to 'pkg/sentry/mm/aio_context.go')
| -rw-r--r-- | pkg/sentry/mm/aio_context.go | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/pkg/sentry/mm/aio_context.go b/pkg/sentry/mm/aio_context.go index 87942af0e..5e86d3b49 100644 --- a/pkg/sentry/mm/aio_context.go +++ b/pkg/sentry/mm/aio_context.go @@ -244,7 +244,7 @@ func (m *aioMappable) Msync(ctx context.Context, mr memmap.MappableRange) error } // AddMapping implements memmap.Mappable.AddMapping. -func (m *aioMappable) AddMapping(ctx context.Context, ms memmap.MappingSpace, ar usermem.AddrRange, offset uint64) error { +func (m *aioMappable) AddMapping(_ context.Context, _ memmap.MappingSpace, ar usermem.AddrRange, offset uint64, _ bool) error { // Don't allow mappings to be expanded (in Linux, fs/aio.c:aio_ring_mmap() // sets VM_DONTEXPAND). if offset != 0 || uint64(ar.Length()) != aioRingBufferSize { @@ -254,11 +254,11 @@ func (m *aioMappable) AddMapping(ctx context.Context, ms memmap.MappingSpace, ar } // RemoveMapping implements memmap.Mappable.RemoveMapping. -func (m *aioMappable) RemoveMapping(ctx context.Context, ms memmap.MappingSpace, ar usermem.AddrRange, offset uint64) { +func (m *aioMappable) RemoveMapping(context.Context, memmap.MappingSpace, usermem.AddrRange, uint64, bool) { } // CopyMapping implements memmap.Mappable.CopyMapping. -func (m *aioMappable) CopyMapping(ctx context.Context, ms memmap.MappingSpace, srcAR, dstAR usermem.AddrRange, offset uint64) error { +func (m *aioMappable) CopyMapping(ctx context.Context, ms memmap.MappingSpace, srcAR, dstAR usermem.AddrRange, offset uint64, _ bool) error { // Don't allow mappings to be expanded (in Linux, fs/aio.c:aio_ring_mmap() // sets VM_DONTEXPAND). if offset != 0 || uint64(dstAR.Length()) != aioRingBufferSize { |