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| author | Dean Deng <deandeng@google.com> | 2020-09-17 15:36:40 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-09-17 15:38:44 -0700 |
| commit | 319d1b8ba0604e7bc029f98ae0e9b09badd5abad (patch) | |
| tree | 59de10aebb09e3ee68dc5444fb9abafc070cffdb /pkg/sentry/fsimpl/overlay | |
| parent | 8070cc3386d461752dc0e601f8a11f8b54f482a6 (diff) | |
Complete vfs2 implementation of fallocate.
This change includes overlay, special regular gofer files, and hostfs.
Fixes #3589.
PiperOrigin-RevId: 332330860
Diffstat (limited to 'pkg/sentry/fsimpl/overlay')
| -rw-r--r-- | pkg/sentry/fsimpl/overlay/non_directory.go | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/overlay/non_directory.go b/pkg/sentry/fsimpl/overlay/non_directory.go index 74cfd3799..6e04705c7 100644 --- a/pkg/sentry/fsimpl/overlay/non_directory.go +++ b/pkg/sentry/fsimpl/overlay/non_directory.go @@ -147,6 +147,16 @@ func (fd *nonDirectoryFD) Stat(ctx context.Context, opts vfs.StatOptions) (linux return stat, nil } +// Allocate implements vfs.FileDescriptionImpl.Allocate. +func (fd *nonDirectoryFD) Allocate(ctx context.Context, mode, offset, length uint64) error { + wrappedFD, err := fd.getCurrentFD(ctx) + if err != nil { + return err + } + defer wrappedFD.DecRef(ctx) + return wrappedFD.Allocate(ctx, mode, offset, length) +} + // SetStat implements vfs.FileDescriptionImpl.SetStat. func (fd *nonDirectoryFD) SetStat(ctx context.Context, opts vfs.SetStatOptions) error { d := fd.dentry() |