linux-kernel - Re: [PATCH] maple_tree: Fix sparse reported issues

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Message-ID: <20220713132926.3sl7gs67dyjj7kit@revolver>
Date:   Wed, 13 Jul 2022 13:29:39 +0000
From:   Liam Howlett <liam.howlett@...cle.com>
To:     David Hildenbrand <david@...hat.com>
CC:     "maple-tree@...ts.infradead.org" <maple-tree@...ts.infradead.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] maple_tree: Fix sparse reported issues

* David Hildenbrand <david@...hat.com> [220713 04:34]:
> On 12.07.22 16:24, Liam Howlett wrote:
> > When building with C=1, the maple tree had some rcu type mismatch &
> > locking mismatches in the destroy functions.  There were cosmetic only
> > since this happens after the nodes are removed from the tree.
> > 
> > Fixes: f8acc5e9581e (Maple Tree: add new data structure)
> > Reported-by: kernel test robot <lkp@...el.com>
> > Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
> 
> Sorry to say, but the fixes become hard to follow (what/where/why). :)
> 
> I guess it's time for a new series soon. Eventually it makes sense to
> send the fixes as reply to the individual problematic patches. (instead
> of fixes to commit ids that are not upstream)
> 
> [yes, I'll do more review soon :) ]

I appreciate the feedback, it's much better than yelling into the void.
I have one more fix in the works - for __vma_adjust() of all functions
so that'll be impossible to follow anyways :)  I'll work on a v11 to
include that last one.

Thanks,
Liam