Clean up TODOs

PiperOrigin-RevId: 305592245

pkg/sentry/fs/tmpfs/fs.go

@@ -44,9 +44,6 @@ const (
 	// lookup.
 	cacheRevalidate = "revalidate"
 
-	// TODO(edahlgren/mpratt): support a tmpfs size limit.
-	// size = "size"
-
 	// Permissions that exceed modeMask will be rejected.
 	modeMask = 01777
 

pkg/sentry/fsimpl/kernfs/filesystem.go

@@ -682,7 +682,7 @@ func (fs *Filesystem) StatFSAt(ctx context.Context, rp *vfs.ResolvingPath) (linu
 	if err != nil {
 		return linux.Statfs{}, err
 	}
-	// TODO: actually implement statfs
+	// TODO(gvisor.dev/issue/1193): actually implement statfs.
 	return linux.Statfs{}, syserror.ENOSYS
 }
 

pkg/sentry/kernel/ptrace.go

@@ -184,7 +184,6 @@ func (t *Task) CanTrace(target *Task, attach bool) bool {
 	if targetCreds.PermittedCaps&^callerCreds.PermittedCaps != 0 {
 		return false
 	}
-	// TODO: Yama LSM
 	return true
 }
 

pkg/sentry/vfs/filesystem.go

@@ -497,7 +497,7 @@ type FilesystemImpl interface {
 	// Preconditions: vd.Mount().Filesystem().Impl() == this FilesystemImpl.
 	PrependPath(ctx context.Context, vfsroot, vd VirtualDentry, b *fspath.Builder) error
 
-	// TODO: inotify_add_watch()
+	// TODO(gvisor.dev/issue/1479): inotify_add_watch()
 }
 
 // PrependPathAtVFSRootError is returned by implementations of

pkg/sentry/vfs/mount.go

@@ -233,9 +233,9 @@ func (vfs *VirtualFilesystem) MountAt(ctx context.Context, creds *auth.Credentia
 		}
 		vd.dentry.mu.Lock()
 	}
-	// TODO: Linux requires that either both the mount point and the mount root
+	// TODO(gvisor.dev/issue/1035): Linux requires that either both the mount
-	// are directories, or neither are, and returns ENOTDIR if this is not the
+	// point and the mount root are directories, or neither are, and returns
-	// case.
+	// ENOTDIR if this is not the case.
 	mntns := vd.mount.ns
 	mnt := newMount(vfs, fs, root, mntns, opts)
 	vfs.mounts.seq.BeginWrite()
@@ -274,9 +274,9 @@ func (vfs *VirtualFilesystem) UmountAt(ctx context.Context, creds *auth.Credenti
 		}
 	}
 
-	// TODO(jamieliu): Linux special-cases umount of the caller's root, which
+	// TODO(gvisor.dev/issue/1035): Linux special-cases umount of the caller's
-	// we don't implement yet (we'll just fail it since the caller holds a
+	// root, which we don't implement yet (we'll just fail it since the caller
-	// reference on it).
+	// holds a reference on it).
 
 	vfs.mounts.seq.BeginWrite()
 	if opts.Flags&linux.MNT_DETACH == 0 {

pkg/sentry/vfs/mount_test.go

@@ -55,7 +55,7 @@ func TestMountTableInsertLookup(t *testing.T) {
 	}
 }
 
-// TODO: concurrent lookup/insertion/removal
+// TODO(gvisor.dev/issue/1035): concurrent lookup/insertion/removal.
 
 // must be powers of 2
 var benchNumMounts = []int{1 << 2, 1 << 5, 1 << 8}

runsc/cmd/gofer.go

@@ -272,9 +272,8 @@ func setupRootFS(spec *specs.Spec, conf *boot.Config) error {
 
 	root := spec.Root.Path
 	if !conf.TestOnlyAllowRunAsCurrentUserWithoutChroot {
-		// FIXME: runsc can't be re-executed without
+		// runsc can't be re-executed without /proc, so we create a tmpfs mount,
-		// /proc, so we create a tmpfs mount, mount ./proc and ./root
+		// mount ./proc and ./root there, then move this mount to the root and after
-		// there, then move this mount to the root and after
 		// setCapsAndCallSelf, runsc will chroot into /root.
 		//
 		// We need a directory to construct a new root and we know that

test/syscalls/linux/epoll.cc

@@ -56,10 +56,6 @@ TEST(EpollTest, AllWritable) {
   struct epoll_event result[kFDsPerEpoll];
   ASSERT_THAT(RetryEINTR(epoll_wait)(epollfd.get(), result, kFDsPerEpoll, -1),
               SyscallSucceedsWithValue(kFDsPerEpoll));
-  // TODO(edahlgren): Why do some tests check epoll_event::data, and others
-  // don't? Does Linux actually guarantee that, in any of these test cases,
-  // epoll_wait will necessarily write out the epoll_events in the order that
-  // they were registered?
   for (int i = 0; i < kFDsPerEpoll; i++) {
     ASSERT_EQ(result[i].events, EPOLLOUT);
   }

test/syscalls/linux/file_base.h

@@ -87,6 +87,7 @@ class FileTest : public ::testing::Test {
     ClosePipes();
   }
 
+ protected:
   std::string test_file_name_;
   FileDescriptor test_file_fd_;
 

test/syscalls/linux/pwrite64.cc

@@ -27,14 +27,7 @@ namespace testing {
 
 namespace {
 
-// This test is currently very rudimentary.
+// TODO(gvisor.dev/issue/2370): This test is currently very rudimentary.
-//
-// TODO(edahlgren):
-// * bad buffer states (EFAULT).
-// * bad fds (wrong permission, wrong type of file, EBADF).
-// * check offset is not incremented.
-// * check for EOF.
-// * writing to pipes, symlinks, special files.
 class Pwrite64 : public ::testing::Test {
   void SetUp() override {
     name_ = NewTempAbsPath();

test/syscalls/linux/tuntap.cc

@@ -242,7 +242,7 @@ TEST_F(TuntapTest, InvalidReadWrite) {
 TEST_F(TuntapTest, WriteToDownDevice) {
   SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_ADMIN)));
 
-  // FIXME: gVisor always creates enabled/up'd interfaces.
+  // FIXME(b/110961832): gVisor always creates enabled/up'd interfaces.
   SKIP_IF(IsRunningOnGvisor());
 
   FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(Open(kDevNetTun, O_RDWR));
@@ -280,10 +280,11 @@ PosixErrorOr<FileDescriptor> OpenAndAttachTap(
                                    &addr, sizeof(addr)));
 
   if (!IsRunningOnGvisor()) {
-    // FIXME: gVisor doesn't support setting MAC address on interfaces yet.
+    // FIXME(b/110961832): gVisor doesn't support setting MAC address on
+    // interfaces yet.
     RETURN_IF_ERRNO(LinkSetMacAddr(link->index, kMacA, sizeof(kMacA)));
 
-    // FIXME: gVisor always creates enabled/up'd interfaces.
+    // FIXME(b/110961832): gVisor always creates enabled/up'd interfaces.
     RETURN_IF_ERRNO(LinkChangeFlags(link->index, IFF_UP, IFF_UP));
   }
 

test/syscalls/linux/write.cc

@@ -31,14 +31,8 @@ namespace gvisor {
 namespace testing {
 
 namespace {
-// This test is currently very rudimentary.
+
-//
+// TODO(gvisor.dev/issue/2370): This test is currently very rudimentary.
-// TODO(edahlgren):
-// * bad buffer states (EFAULT).
-// * bad fds (wrong permission, wrong type of file, EBADF).
-// * check offset is incremented.
-// * check for EOF.
-// * writing to pipes, symlinks, special files.
 class WriteTest : public ::testing::Test {
  public:
   ssize_t WriteBytes(int fd, int bytes) {

tools/go_generics/defs.bzl

@@ -105,7 +105,6 @@ def _go_template_instance_impl(ctx):
         executable = ctx.executable._tool,
     )
 
-    # TODO: How can we get the dependencies out?
     return struct(
         files = depset([output]),
     )