// LOCKS_EXCLUDED(fs.mu)
func (fs *cachingFS) GetInodeAttributes(
	ctx context.Context,
	op *fuseops.GetInodeAttributesOp) (err error) {
	fs.mu.Lock()
	defer fs.mu.Unlock()

	// Figure out which inode the request is for.
	var attrs fuseops.InodeAttributes

	switch {
	case op.Inode == fuseops.RootInodeID:
		attrs = fs.rootAttrs()

	case op.Inode%numInodes == fooOffset:
		attrs = fs.fooAttrs()

	case op.Inode%numInodes == dirOffset:
		attrs = fs.dirAttrs()

	case op.Inode%numInodes == barOffset:
		attrs = fs.barAttrs()
	}

	// Fill in the response.
	op.Attributes = attrs
	op.AttributesExpiration = time.Now().Add(fs.getattrTimeout)

	return
}

func (fs *Goofys) GetInodeAttributes(
	ctx context.Context,
	op *fuseops.GetInodeAttributesOp) (err error) {

	fs.mu.Lock()
	inode := fs.getInodeOrDie(op.Inode)
	fs.mu.Unlock()

	attr, err := inode.GetAttributes(fs)
	op.Attributes = *attr
	op.AttributesExpiration = time.Now().Add(365 * 24 * time.Hour)

	return
}

func (fs *statFS) GetInodeAttributes(
	ctx context.Context,
	op *fuseops.GetInodeAttributesOp) (err error) {
	switch op.Inode {
	case fuseops.RootInodeID:
		op.Attributes = dirAttrs()

	case childInodeID:
		op.Attributes = fileAttrs()

	default:
		err = fuse.ENOENT
	}

	return
}

func (fs *InterruptFS) GetInodeAttributes(
	op *fuseops.GetInodeAttributesOp) (err error) {
	switch op.Inode {
	case fuseops.RootInodeID:
		op.Attributes = rootAttrs

	case fooID:
		op.Attributes = fooAttrs

	default:
		err = fmt.Errorf("Unexpected inode ID: %v", op.Inode)
		return
	}

	return
}

func (fs *memFS) GetInodeAttributes(
	op *fuseops.GetInodeAttributesOp) (err error) {
	fs.mu.Lock()
	defer fs.mu.Unlock()

	// Grab the inode.
	inode := fs.getInodeOrDie(op.Inode)

	// Fill in the response.
	op.Attributes = inode.attrs

	// We don't spontaneously mutate, so the kernel can cache as long as it wants
	// (since it also handles invalidation).
	op.AttributesExpiration = fs.clock.Now().Add(365 * 24 * time.Hour)

	return
}

// LOCKS_EXCLUDED(fs.mu)
func (fs *fileSystem) GetInodeAttributes(
	op *fuseops.GetInodeAttributesOp) (err error) {
	// Find the inode.
	fs.mu.Lock()
	in := fs.inodes[op.Inode]
	fs.mu.Unlock()

	in.Lock()
	defer in.Unlock()

	// Grab its attributes.
	op.Attributes, err = in.Attributes(op.Context())
	if err != nil {
		return
	}

	return
}

// GetInodeAttributes set attributes for a specified Node.
//
// Required for fuse.FileSystem.
func (k *KodingNetworkFS) GetInodeAttributes(ctx context.Context, op *fuseops.GetInodeAttributesOp) error {
	entry, err := k.getEntry(ctx, op.Inode)
	if err != nil {
		return err
	}

	op.Attributes = *entry.GetAttrs()

	return nil
}

func (fs *flushFS) GetInodeAttributes(
	op *fuseops.GetInodeAttributesOp) (err error) {
	fs.mu.Lock()
	defer fs.mu.Unlock()

	switch op.Inode {
	case fuseops.RootInodeID:
		op.Attributes = fs.rootAttributes()
		return

	case fooID:
		op.Attributes = fs.fooAttributes()
		return

	case barID:
		op.Attributes = fs.barAttributes()
		return

	default:
		err = fuse.ENOENT
		return
	}
}

func (fs *fsImpl) GetInodeAttributes(
	ctx context.Context,
	op *fuseops.GetInodeAttributesOp) (err error) {
	fs.mu.Lock()
	defer fs.mu.Unlock()

	// Find the inode, verifying that it has not been forgotten.
	in := fs.findInodeByID(op.Inode)

	// Return appropriate attributes.
	op.Attributes = in.attributes

	return
}

func (fs *helloFS) GetInodeAttributes(
	op *fuseops.GetInodeAttributesOp) (err error) {
	// Find the info for this inode.
	info, ok := gInodeInfo[op.Inode]
	if !ok {
		err = fuse.ENOENT
		return
	}

	// Copy over its attributes.
	op.Attributes = info.attributes

	// Patch attributes.
	fs.patchAttributes(&op.Attributes)

	return
}