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From: Mike Hommey <mh@glandium.org>
To: Derrick Stolee <stolee@gmail.com>
Cc: git@vger.kernel.org, gitster@pobox.com, avarab@gmail.com,
	szeder.dev@gmail.com, peff@peff.net, jnareb@gmail.com,
	Derrick Stolee <dstolee@microsoft.com>
Subject: Re: [PATCH v5 6/7] revision.c: generation-based topo-order algorithm
Date: Fri, 8 Nov 2019 11:50:07 +0900	[thread overview]
Message-ID: <20191108025007.bphr7ynvskeoe6tb@glandium.org> (raw)
In-Reply-To: <20181101134623.84055-7-dstolee@microsoft.com>

Replying to this old thread because I have questions regarding the
patch, in the context of problems I had downstream, in git-cinnabar.

On Thu, Nov 01, 2018 at 01:46:22PM +0000, Derrick Stolee wrote:
>  static void init_topo_walk(struct rev_info *revs)
>  {
>  	struct topo_walk_info *info;
> +	struct commit_list *list;
>  	revs->topo_walk_info = xmalloc(sizeof(struct topo_walk_info));

Not directly from this patch, but there's nothing that frees this memory
AFAICS, but then, that's also true for most of the things in struct
rev_info.

> diff --git a/revision.h b/revision.h
> index fd4154ff75..b0b3bb8025 100644
> --- a/revision.h
> +++ b/revision.h
> @@ -24,6 +24,8 @@
>  #define USER_GIVEN	(1u<<25) /* given directly by the user */
>  #define TRACK_LINEAR	(1u<<26)
>  #define ALL_REV_FLAGS	(((1u<<11)-1) | USER_GIVEN | TRACK_LINEAR)
> +#define TOPO_WALK_EXPLORED	(1u<<27)
> +#define TOPO_WALK_INDEGREE	(1u<<28)

Should these two flags be included in ALL_REV_FLAGS?
Should they be reset by reset_revision_walk?

At least for the latter, I'd say yes, otherwise you can end up with
missing revs in a subsequent topo-order revwalk.

Mike

  parent reply	other threads:[~2019-11-08  2:50 UTC|newest]

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-27 20:41 [PATCH 0/6] Use generation numbers for --topo-order Derrick Stolee via GitGitGadget
2018-08-27 20:41 ` [PATCH 1/6] prio-queue: add 'peek' operation Derrick Stolee via GitGitGadget
2018-08-27 20:41 ` [PATCH 2/6] test-reach: add run_three_modes method Derrick Stolee via GitGitGadget
2018-08-27 20:41 ` [PATCH 3/6] test-reach: add rev-list tests Derrick Stolee via GitGitGadget
2018-08-27 20:41 ` [PATCH 4/6] revision.c: begin refactoring --topo-order logic Derrick Stolee via GitGitGadget
2018-08-27 20:41 ` [PATCH 5/6] commit/revisions: bookkeeping before refactoring Derrick Stolee via GitGitGadget
2018-08-27 20:41 ` [PATCH 6/6] revision.c: refactor basic topo-order logic Derrick Stolee via GitGitGadget
2018-08-27 21:23 ` [PATCH 0/6] Use generation numbers for --topo-order Junio C Hamano
2018-09-18  4:08 ` [PATCH v2 " Derrick Stolee via GitGitGadget
2018-09-18  4:08   ` [PATCH v2 1/6] prio-queue: add 'peek' operation Derrick Stolee via GitGitGadget
2018-09-18  4:08   ` [PATCH v2 2/6] test-reach: add run_three_modes method Derrick Stolee via GitGitGadget
2018-09-18 18:02     ` SZEDER Gábor
2018-09-19 19:31       ` Junio C Hamano
2018-09-19 19:38         ` Junio C Hamano
2018-09-20 21:18           ` Junio C Hamano
2018-09-18  4:08   ` [PATCH v2 3/6] test-reach: add rev-list tests Derrick Stolee via GitGitGadget
2018-09-18  4:08   ` [PATCH v2 4/6] revision.c: begin refactoring --topo-order logic Derrick Stolee via GitGitGadget
2018-09-18  4:08   ` [PATCH v2 5/6] commit/revisions: bookkeeping before refactoring Derrick Stolee via GitGitGadget
2018-09-18  4:08   ` [PATCH v2 6/6] revision.c: refactor basic topo-order logic Derrick Stolee via GitGitGadget
2018-09-18  5:51     ` Ævar Arnfjörð Bjarmason
2018-09-18  6:05   ` [PATCH v2 0/6] Use generation numbers for --topo-order Ævar Arnfjörð Bjarmason
2018-09-21 15:47     ` Derrick Stolee
2018-09-21 17:39   ` [PATCH v3 0/7] " Derrick Stolee via GitGitGadget
2018-09-21 17:39     ` [PATCH v3 1/7] prio-queue: add 'peek' operation Derrick Stolee via GitGitGadget
2018-09-26 19:15       ` Derrick Stolee
2018-10-11 13:54       ` Jeff King
2018-09-21 17:39     ` [PATCH v3 2/7] test-reach: add run_three_modes method Derrick Stolee via GitGitGadget
2018-10-11 13:57       ` Jeff King
2018-09-21 17:39     ` [PATCH v3 3/7] test-reach: add rev-list tests Derrick Stolee via GitGitGadget
2018-10-11 13:58       ` Jeff King
2018-10-12  4:34         ` Junio C Hamano
2018-09-21 17:39     ` [PATCH v3 4/7] revision.c: begin refactoring --topo-order logic Derrick Stolee via GitGitGadget
2018-10-11 14:06       ` Jeff King
2018-10-12  6:33       ` Junio C Hamano
2018-10-12 12:32         ` Derrick Stolee
2018-10-12 16:15         ` Johannes Sixt
2018-10-13  8:05           ` Junio C Hamano
2018-09-21 17:39     ` [PATCH v3 5/7] commit/revisions: bookkeeping before refactoring Derrick Stolee via GitGitGadget
2018-10-11 14:21       ` Jeff King
2018-09-21 17:39     ` [PATCH v3 6/7] revision.h: add whitespace in flag definitions Derrick Stolee via GitGitGadget
2018-09-21 17:39     ` [PATCH v3 7/7] revision.c: refactor basic topo-order logic Derrick Stolee via GitGitGadget
2018-09-27 17:57       ` Derrick Stolee
2018-10-06 16:56         ` Jakub Narebski
2018-10-11 15:35       ` Jeff King
2018-10-11 16:21         ` Derrick Stolee
2018-10-25  9:43           ` Jeff King
2018-10-25 13:00             ` Derrick Stolee
2018-10-11 22:32       ` Stefan Beller
2018-09-21 21:22     ` [PATCH v3 0/7] Use generation numbers for --topo-order Junio C Hamano
2018-10-16 22:36     ` [PATCH v4 " Derrick Stolee via GitGitGadget
2018-10-16 22:36       ` [PATCH v4 1/7] prio-queue: add 'peek' operation Derrick Stolee via GitGitGadget
2018-10-16 22:36       ` [PATCH v4 2/7] test-reach: add run_three_modes method Derrick Stolee via GitGitGadget
2018-10-16 22:36       ` [PATCH v4 3/7] test-reach: add rev-list tests Derrick Stolee via GitGitGadget
2018-10-21 10:21         ` Jakub Narebski
2018-10-21 15:28           ` Derrick Stolee
2018-10-16 22:36       ` [PATCH v4 4/7] revision.c: begin refactoring --topo-order logic Derrick Stolee via GitGitGadget
2018-10-21 15:55         ` Jakub Narebski
2018-10-22  1:12           ` Junio C Hamano
2018-10-22  1:51             ` Derrick Stolee
2018-10-22  1:55               ` [RFC PATCH] revision.c: use new algorithm in A..B case Derrick Stolee
2018-10-25  8:28               ` [PATCH v4 4/7] revision.c: begin refactoring --topo-order logic Junio C Hamano
2018-10-26 20:56                 ` Jakub Narebski
2018-10-16 22:36       ` [PATCH v4 5/7] commit/revisions: bookkeeping before refactoring Derrick Stolee via GitGitGadget
2018-10-21 21:17         ` Jakub Narebski
2018-10-16 22:36       ` [PATCH v4 6/7] revision.c: generation-based topo-order algorithm Derrick Stolee via GitGitGadget
2018-10-22 13:37         ` Jakub Narebski
2018-10-23 13:54           ` Derrick Stolee
2018-10-26 16:55             ` Jakub Narebski
2018-10-16 22:36       ` [PATCH v4 7/7] t6012: make rev-list tests more interesting Derrick Stolee via GitGitGadget
2018-10-23 15:48         ` Jakub Narebski
2018-10-21 12:57       ` [PATCH v4 0/7] Use generation numbers for --topo-order Jakub Narebski
2018-11-01  5:21       ` Junio C Hamano
2018-11-01 13:49         ` Derrick Stolee
2018-11-01 23:54           ` Junio C Hamano
2018-11-01 13:46       ` [PATCH v5 " Derrick Stolee
2018-11-01 13:46         ` [PATCH v5 1/7] prio-queue: add 'peek' operation Derrick Stolee
2018-11-01 13:46         ` [PATCH v5 2/7] test-reach: add run_three_modes method Derrick Stolee
2018-11-01 13:46         ` [PATCH v5 3/7] test-reach: add rev-list tests Derrick Stolee
2018-11-01 13:46         ` [PATCH v5 4/7] revision.c: begin refactoring --topo-order logic Derrick Stolee
2018-11-01 13:46         ` [PATCH v5 5/7] commit/revisions: bookkeeping before refactoring Derrick Stolee
2018-11-01 13:46         ` [PATCH v5 6/7] revision.c: generation-based topo-order algorithm Derrick Stolee
2018-11-01 15:48           ` SZEDER Gábor
2018-11-01 16:12             ` Derrick Stolee
2019-11-08  2:50           ` Mike Hommey [this message]
2019-11-11  1:07             ` Derrick Stolee
2019-11-18 23:04               ` SZEDER Gábor
2018-11-01 13:46         ` [PATCH v5 7/7] t6012: make rev-list tests more interesting Derrick Stolee

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