Re: [PATCH] Initial support for struct vfs_cred [0/1]

[Linus Torvalds]

On 31 Aug 2002, Luca Barbieri wrote:
>
> But aren't credential changes supposed to be infrequent?
> 
> If so, isn't it faster to put the fields directly in task_struct, keep a
> separate shared structure and copy them on kernel entry?

But that makes us copy them every time, even though they practically never 
change.. Much better to only copy them in the extremely rare cases when 
they do change.

		Linus