Re: [PATCH 1/6] livepatch v5: avoid race when checking for state of the patch

From: Josh Poimboeuf
Date: Thu Dec 11 2014 - 09:24:08 EST

On Thu, Dec 11, 2014 at 12:17:33PM +0100, Petr Mladek wrote:
> On Wed 2014-12-10 09:25:06, Josh Poimboeuf wrote:
> > On Wed, Dec 10, 2014 at 11:11:47AM +0100, Petr Mladek wrote:
> > > On Tue 2014-12-09 12:32:49, Josh Poimboeuf wrote:
> > But livepatch isn't a module, it's part of the kernel.
> Ah, I remembered that module_init(klp_init) and created a wrong mental link ;-)
> > Even if the init
> > function returns an error, that doesn't prevent any of the other
> > exported functions from getting called.
> Well, it still will be covered by that later klp_patch_is_registered()
> check. But I am find with leaving it as is.

True, it's probably only necessary to call klp_is_enabled() from the
register function. And I'm thinking it should probably have a better
name, like klp_initialized().

But that's a minor cosmetic change, so if there are no more comments for
the v6 patch set, I can send a separate patch for that later.

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