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From: Taylor Blau <me@ttaylorr.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: Taylor Blau <me@ttaylorr.com>,
	git@vger.kernel.org, vdye@github.com, jonathantanmy@google.com
Subject: Re: [PATCH v2 2/4] builtin/pack-objects.c: avoid redundant NULL check
Date: Tue, 24 May 2022 20:11:37 -0400	[thread overview]
Message-ID: <Yo10OTRmytLM21o9@nand.local> (raw)
In-Reply-To: <xmqq8rqqfvwa.fsf@gitster.g>

On Tue, May 24, 2022 at 02:44:37PM -0700, Junio C Hamano wrote:
> Taylor Blau <me@ttaylorr.com> writes:
>
> > Before calling `for_each_object_in_pack()`, the caller
> > `read_packs_list_from_stdin()` loops through each of the `include_packs`
> > and checks that its `->util` pointer (which is used to store the `struct
> > packed_git *` itself) is non-NULL.
> >
> > This check is redundant, because `read_packs_list_from_stdin()` already
> > checks that the included packs are non-NULL earlier on in the same
> > function (and it does not add any new entries in between).
> >
> > Remove this check, since it is not doing anything in the meantime.
>
> Will it start doing something soon in a later step?
>
> Oh, did you mean that after the earlier for_each_string_list_item()
> iteration over include_packs that died on an item with a NULL .util
> member, the code did not do anything to cause this second iteration
> over the same list to suddenly start seeing an item with NULL .util?
>
> I am puzzled by the mention of "in the meantime".

The latter, sorry for the confusion.

> The patch itself looks correct, of course.

Thanks.


Taylor

  reply	other threads:[~2022-05-25  0:12 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-13 16:23 [PATCH 0/2] pack-objects: fix a pair of MIDX bitmap-related races Taylor Blau
2022-05-13 16:23 ` [PATCH 1/2] pack-bitmap: check preferred pack validity when opening MIDX bitmap Taylor Blau
2022-05-13 18:19   ` Junio C Hamano
2022-05-13 19:55     ` Taylor Blau
2022-05-13 16:23 ` [PATCH 2/2] builtin/pack-objects.c: ensure pack validity from MIDX bitmap objects Taylor Blau
2022-05-13 23:06   ` Jonathan Tan
2022-05-14 13:17     ` Taylor Blau
2022-05-16  6:07       ` Jonathan Tan
2022-05-14 13:34     ` Taylor Blau
2022-05-16  6:11       ` Jonathan Tan
2022-05-24 18:54 ` [PATCH v2 0/4] pack-objects: fix a pair of MIDX bitmap-related races Taylor Blau
2022-05-24 18:54   ` [PATCH v2 1/4] pack-bitmap.c: check preferred pack validity when opening MIDX bitmap Taylor Blau
2022-05-24 19:36     ` Ævar Arnfjörð Bjarmason
2022-05-24 21:38       ` Taylor Blau
2022-05-24 21:51         ` Ævar Arnfjörð Bjarmason
2022-05-24 18:54   ` [PATCH v2 2/4] builtin/pack-objects.c: avoid redundant NULL check Taylor Blau
2022-05-24 21:44     ` Junio C Hamano
2022-05-25  0:11       ` Taylor Blau [this message]
2022-05-24 18:54   ` [PATCH v2 3/4] builtin/pack-objects.c: ensure included `--stdin-packs` exist Taylor Blau
2022-05-24 19:46     ` Ævar Arnfjörð Bjarmason
2022-05-24 21:33       ` Taylor Blau
2022-05-24 21:49         ` Ævar Arnfjörð Bjarmason
2022-05-24 22:03     ` Junio C Hamano
2022-05-25  0:14       ` Taylor Blau
2022-05-26 19:21     ` Victoria Dye
2022-05-26 20:05       ` Taylor Blau
2022-05-24 18:54   ` [PATCH v2 4/4] builtin/pack-objects.c: ensure pack validity from MIDX bitmap objects Taylor Blau
2022-05-24 21:38   ` [PATCH v2 0/4] pack-objects: fix a pair of MIDX bitmap-related races Junio C Hamano
2022-05-25  0:16     ` Taylor Blau

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