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/fs/binder | |
| 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/fs/binder')
| -rw-r--r-- | pkg/sentry/fs/binder/binder.go | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/pkg/sentry/fs/binder/binder.go b/pkg/sentry/fs/binder/binder.go index 42b9e8b26..e642c7f22 100644 --- a/pkg/sentry/fs/binder/binder.go +++ b/pkg/sentry/fs/binder/binder.go @@ -302,7 +302,7 @@ func (bp *Proc) Ioctl(ctx context.Context, io usermem.IO, args arch.SyscallArgum } // AddMapping implements memmap.Mappable.AddMapping. -func (bp *Proc) AddMapping(ctx context.Context, ms memmap.MappingSpace, ar usermem.AddrRange, offset uint64) error { +func (bp *Proc) AddMapping(ctx context.Context, ms memmap.MappingSpace, ar usermem.AddrRange, offset uint64, _ bool) error { bp.mu.Lock() defer bp.mu.Unlock() if bp.mapped.Length() != 0 { @@ -320,12 +320,12 @@ func (bp *Proc) AddMapping(ctx context.Context, ms memmap.MappingSpace, ar userm } // RemoveMapping implements memmap.Mappable.RemoveMapping. -func (bp *Proc) RemoveMapping(ctx context.Context, ms memmap.MappingSpace, ar usermem.AddrRange, offset uint64) { +func (*Proc) RemoveMapping(context.Context, memmap.MappingSpace, usermem.AddrRange, uint64, bool) { // Nothing to do. Notably, we don't free bp.mapped to allow another mmap. } // CopyMapping implements memmap.Mappable.CopyMapping. -func (bp *Proc) CopyMapping(ctx context.Context, ms memmap.MappingSpace, srcAR, dstAR usermem.AddrRange, offset uint64) error { +func (bp *Proc) CopyMapping(ctx context.Context, ms memmap.MappingSpace, srcAR, dstAR usermem.AddrRange, offset uint64, _ bool) error { // Nothing to do. Notably, this is one case where CopyMapping isn't // equivalent to AddMapping, as AddMapping would return EBUSY. return nil |