diff options
| author | Dean Deng <deandeng@google.com> | 2021-05-14 14:02:04 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-05-14 14:04:46 -0700 |
| commit | 894187b2c6edbe367135670fb53f2e3f3d24535d (patch) | |
| tree | 750cf74e5dc7d8acc5715f9b43555a2d481273d1 /pkg/sentry/vfs/file_description.go | |
| parent | eb7e83f645cc21f3219865d38fa7f8e06852c822 (diff) | |
Resolve remaining O_PATH TODOs.
O_PATH is now implemented in vfs2.
Fixes #2782.
PiperOrigin-RevId: 373861410
Diffstat (limited to 'pkg/sentry/vfs/file_description.go')
| -rw-r--r-- | pkg/sentry/vfs/file_description.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/pkg/sentry/vfs/file_description.go b/pkg/sentry/vfs/file_description.go index 176bcc242..ef8d8a813 100644 --- a/pkg/sentry/vfs/file_description.go +++ b/pkg/sentry/vfs/file_description.go @@ -454,6 +454,9 @@ type FileDescriptionImpl interface { // RemoveXattr removes the given extended attribute from the file. RemoveXattr(ctx context.Context, name string) error + // SupportsLocks indicates whether file locks are supported. + SupportsLocks() bool + // LockBSD tries to acquire a BSD-style advisory file lock. LockBSD(ctx context.Context, uid lock.UniqueID, ownerPID int32, t lock.LockType, block lock.Blocker) error @@ -818,6 +821,11 @@ func (fd *FileDescription) Msync(ctx context.Context, mr memmap.MappableRange) e return fd.Sync(ctx) } +// SupportsLocks indicates whether file locks are supported. +func (fd *FileDescription) SupportsLocks() bool { + return fd.impl.SupportsLocks() +} + // LockBSD tries to acquire a BSD-style advisory file lock. func (fd *FileDescription) LockBSD(ctx context.Context, ownerPID int32, lockType lock.LockType, blocker lock.Blocker) error { atomic.StoreUint32(&fd.usedLockBSD, 1) |