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| author | Ayush Ranjan <ayushranjan@google.com> | 2020-07-01 19:47:51 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-07-01 19:49:44 -0700 |
| commit | 52b44719d6e14ec299d0d953b4dc07a712b897fa (patch) | |
| tree | 961d17d3fe06afedc64fa000397bdaf4e8463865 /pkg/sentry/fsimpl/tmpfs | |
| parent | 3b26d2121e3afbbc005b5e919000d55a235b4bbe (diff) | |
[vfs2][gofer] Update file size to 0 on O_TRUNC
Some Open:TruncateXxx syscall tests were failing because the file size was
not being updated when the file was opened with O_TRUNC.
Fixes Truncate tests in test/syscalls:open_test_runsc_ptrace_vfs2.
Updates #2923
PiperOrigin-RevId: 319340127
Diffstat (limited to 'pkg/sentry/fsimpl/tmpfs')
| -rw-r--r-- | pkg/sentry/fsimpl/tmpfs/filesystem.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pkg/sentry/fsimpl/tmpfs/filesystem.go b/pkg/sentry/fsimpl/tmpfs/filesystem.go index ce0dbb154..ed40f6b52 100644 --- a/pkg/sentry/fsimpl/tmpfs/filesystem.go +++ b/pkg/sentry/fsimpl/tmpfs/filesystem.go @@ -410,7 +410,7 @@ func (d *dentry) open(ctx context.Context, rp *vfs.ResolvingPath, opts *vfs.Open if err := fd.vfsfd.Init(&fd, opts.Flags, rp.Mount(), &d.vfsd, &vfs.FileDescriptionOptions{AllowDirectIO: true}); err != nil { return nil, err } - if opts.Flags&linux.O_TRUNC != 0 { + if !afterCreate && opts.Flags&linux.O_TRUNC != 0 { if _, err := impl.truncate(0); err != nil { return nil, err } |