Re: ima: use of radix tree cache indexing == massive waste ofmemory?

[Peter Zijlstra]

On Sun, 2010-10-17 at 10:16 -0400, Eric Paris wrote:
> If instead you attack the problem from the other side and start with all
> of the files we'd need some kind of freezer to so we could get the
> atomicity required.  We'd have to review every single file on the system
> before we could be certain that the inode was correct.  Maybe I'm wrong
> and someone else can help me see how to solve it this way.... 

Well, you could use the actual freezer to freeze luserspace and then
simply iterate all open files, I mean, those few sods who actually want
this enabled can either pass a boot option to enable from boot or suffer
the overhead on enable, right?


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