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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/vfs/file_description.go | |
| 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/vfs/file_description.go')
| -rw-r--r-- | pkg/sentry/vfs/file_description.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/pkg/sentry/vfs/file_description.go b/pkg/sentry/vfs/file_description.go index 2b29a3c3f..73bb36d3e 100644 --- a/pkg/sentry/vfs/file_description.go +++ b/pkg/sentry/vfs/file_description.go @@ -326,6 +326,9 @@ type FileDescriptionImpl interface { // Allocate grows the file to offset + length bytes. // Only mode == 0 is supported currently. // + // Allocate should return EISDIR on directories, ESPIPE on pipes, and ENODEV on + // other files where it is not supported. + // // Preconditions: The FileDescription was opened for writing. Allocate(ctx context.Context, mode, offset, length uint64) error |