From: Taylor Blau <me@ttaylorr.com>
Date: Tue, 12 Dec 2023 16:48:12 GMT
Subject: Re: [PATCH 02/24] pack-bitmap-write: deep-clear the `bb_commit` slab
Message-ID: <ZXiOzN4T06yy/NvV@nand.local>
In-Reply-To: <20231212070406.GA1117953@coredump.intra.peff.net>

On Tue, Dec 12, 2023 at 02:04:06AM -0500, Jeff King wrote:
> On Tue, Nov 28, 2023 at 02:07:59PM -0500, Taylor Blau wrote:
>
> > +static void clear_bb_commit(struct bb_commit *commit)
> > +{
> > +	free(commit->reverse_edges);
> > +	bitmap_free(commit->commit_mask);
> > +	bitmap_free(commit->bitmap);
> > +}
>
> I think these bitmaps may sometimes be NULL. But double-checking
> bitmap_free(), it sensibly is noop when passed NULL. So this look good
> to me.

Yeah, bitamp_free() handles a NULL input correctly, so we can pass a
possibly-NULL `commit->commit_mask` or `commit->bitmap` argument and be
OK.

Thanks,
Taylor