// LOCKS_EXCLUDED(fs.mu)
func (fs *fileSystem) SetInodeAttributes(
op *fuseops.SetInodeAttributesOp) (err error) {
// Find the inode.
fs.mu.Lock()
in := fs.inodes[op.Inode]
fs.mu.Unlock()
in.Lock()
defer in.Unlock()
// The only thing we support changing is size, and then only for directories.
if op.Mode != nil || op.Atime != nil || op.Mtime != nil {
err = fuse.ENOSYS
return
}
file, ok := in.(*inode.FileInode)
if !ok {
err = fuse.ENOSYS
return
}
// Set the size, if specified.
if op.Size != nil {
if err = file.Truncate(op.Context(), int64(*op.Size)); err != nil {
err = fmt.Errorf("Truncate: %v", err)
return
}
}
// Fill in the response.
op.Attributes, err = in.Attributes(op.Context())
if err != nil {
return
}
return
}
