From: Elijah Newren <newren@gmail.com>
To: Jonathan Tan <jonathantanmy@google.com>
Cc: Elijah Newren via GitGitGadget <gitgitgadget@gmail.com>,
git@vger.kernel.org
Subject: Re: [PATCH 05/11] sparse-checkout: avoid using internal API of unpack-trees
Date: Fri, 24 Feb 2023 16:33:02 -0800 [thread overview]
Message-ID: <CABPp-BHhWpo532fqO_cuVrTJX550UrEv0ZFCf003HjLFQ+wfFg@mail.gmail.com> (raw)
In-Reply-To: <20230224223730.1510266-1-jonathantanmy@google.com>
On Fri, Feb 24, 2023 at 2:37 PM Jonathan Tan <jonathantanmy@google.com> wrote:
>
> "Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com> writes:
> > diff --git a/builtin/sparse-checkout.c b/builtin/sparse-checkout.c
> > index c3738154918..4b7390ce367 100644
> > --- a/builtin/sparse-checkout.c
> > +++ b/builtin/sparse-checkout.c
> > @@ -219,14 +219,13 @@ static int update_working_directory(struct pattern_list *pl)
> > o.dst_index = r->index;
> > index_state_init(&o.result, r);
> > o.skip_sparse_checkout = 0;
> > - o.pl = pl;
> >
> > setup_work_tree();
> >
> > repo_hold_locked_index(r, &lock_file, LOCK_DIE_ON_ERROR);
> >
> > setup_unpack_trees_porcelain(&o, "sparse-checkout");
> > - result = update_sparsity(&o);
> > + result = update_sparsity(&o, pl);
>
> This makes sense - setup_unpack_trees_porcelain() does not use o.pl, so
> there is no logic change.
>
> > @@ -2111,11 +2111,12 @@ enum update_sparsity_result update_sparsity(struct unpack_trees_options *o)
> > trace_performance_enter();
> >
> > /* If we weren't given patterns, use the recorded ones */
> > - if (!o->pl) {
> > - memset(&pl, 0, sizeof(pl));
> > + if (!pl) {
> > free_pattern_list = 1;
> > - populate_from_existing_patterns(o, &pl);
> > + pl = xcalloc(1, sizeof(*pl));
> > + populate_from_existing_patterns(o, pl);
> > }
> > + o->pl = pl;
> >
> > /* Expand sparse directories as needed */
> > expand_index(o->src_index, o->pl);
> > @@ -2147,8 +2148,10 @@ enum update_sparsity_result update_sparsity(struct unpack_trees_options *o)
> >
> > display_warning_msgs(o);
> > o->show_all_errors = old_show_all_errors;
> > - if (free_pattern_list)
> > - clear_pattern_list(&pl);
> > + if (free_pattern_list) {
> > + clear_pattern_list(pl);
> > + free(pl);
> > + }
>
> When free_pattern_list is true, we free "pl" which was previously
> assigned to "o->pl". Do we thus need to also clear "o->pl"?
Yeah, I don't think the existing code will ever attempt to use o->pl
again under these circumstances, but setting it to NULL for
future-proofing makes sense. I'll make that tweak; thanks for reading
carefully!
next prev parent reply other threads:[~2023-02-25 0:33 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-23 9:14 [PATCH 00/11] Clarify API for dir.[ch] and unpack-trees.[ch] -- mark relevant fields as internal Elijah Newren via GitGitGadget
2023-02-23 9:14 ` [PATCH 01/11] dir: separate public from internal portion of dir_struct Elijah Newren via GitGitGadget
2023-02-23 9:14 ` [PATCH 02/11] dir: add a usage note to exclude_per_dir Elijah Newren via GitGitGadget
2023-02-24 22:31 ` Jonathan Tan
2023-02-25 0:23 ` Elijah Newren
2023-02-25 1:54 ` Jonathan Tan
2023-02-25 3:23 ` Elijah Newren
2023-02-23 9:14 ` [PATCH 03/11] dir: mark output only fields of dir_struct as such Elijah Newren via GitGitGadget
2023-02-23 9:14 ` [PATCH 04/11] unpack-trees: clean up some flow control Elijah Newren via GitGitGadget
2023-02-24 22:33 ` Jonathan Tan
2023-02-23 9:14 ` [PATCH 05/11] sparse-checkout: avoid using internal API of unpack-trees Elijah Newren via GitGitGadget
2023-02-24 22:37 ` Jonathan Tan
2023-02-25 0:33 ` Elijah Newren [this message]
2023-02-23 9:14 ` [PATCH 06/11] sparse-checkout: avoid using internal API of unpack-trees, take 2 Elijah Newren via GitGitGadget
2023-02-24 23:22 ` Jonathan Tan
2023-02-25 0:40 ` Elijah Newren
2023-02-23 9:14 ` [PATCH 07/11] unpack_trees: start splitting internal fields from public API Elijah Newren via GitGitGadget
2023-02-23 9:14 ` [PATCH 08/11] unpack-trees: mark fields only used internally as internal Elijah Newren via GitGitGadget
2023-02-23 9:14 ` [PATCH 09/11] unpack-trees: rewrap a few overlong lines from previous patch Elijah Newren via GitGitGadget
2023-02-23 9:14 ` [PATCH 10/11] unpack-trees: special case read-tree debugging as internal usage Elijah Newren via GitGitGadget
2023-02-23 9:15 ` [PATCH 11/11] unpack-trees: add usage notices around df_conflict_entry Elijah Newren via GitGitGadget
2023-02-23 15:18 ` [PATCH 00/11] Clarify API for dir.[ch] and unpack-trees.[ch] -- mark relevant fields as internal Derrick Stolee
2023-02-23 15:26 ` Derrick Stolee
2023-02-23 20:35 ` Elijah Newren
2023-02-23 20:31 ` Elijah Newren
2023-02-24 1:24 ` Junio C Hamano
2023-02-24 5:54 ` Jacob Keller
2023-02-24 23:36 ` Jonathan Tan
2023-02-25 2:25 ` [PATCH v2 " Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 01/11] dir: separate public from internal portion of dir_struct Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 02/11] dir: add a usage note to exclude_per_dir Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 03/11] dir: mark output only fields of dir_struct as such Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 04/11] unpack-trees: clean up some flow control Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 05/11] sparse-checkout: avoid using internal API of unpack-trees Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 06/11] sparse-checkout: avoid using internal API of unpack-trees, take 2 Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 07/11] unpack_trees: start splitting internal fields from public API Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 08/11] unpack-trees: mark fields only used internally as internal Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 09/11] unpack-trees: rewrap a few overlong lines from previous patch Elijah Newren via GitGitGadget
2023-02-25 2:25 ` [PATCH v2 10/11] unpack-trees: special case read-tree debugging as internal usage Elijah Newren via GitGitGadget
2023-02-25 2:26 ` [PATCH v2 11/11] unpack-trees: add usage notices around df_conflict_entry Elijah Newren via GitGitGadget
2023-02-25 23:30 ` [PATCH v2 00/11] Clarify API for dir.[ch] and unpack-trees.[ch] -- mark relevant fields as internal Junio C Hamano
2023-02-27 15:28 ` [PATCH v3 00/13] " Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 01/13] t2021: fix platform-specific leftover cruft Elijah Newren via GitGitGadget
2023-02-27 19:11 ` Derrick Stolee
2023-02-27 15:28 ` [PATCH v3 02/13] unpack-trees: heed requests to overwrite ignored files Elijah Newren via GitGitGadget
2023-02-27 23:20 ` Jonathan Tan
2023-02-27 15:28 ` [PATCH v3 03/13] dir: separate public from internal portion of dir_struct Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 04/13] dir: add a usage note to exclude_per_dir Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 05/13] dir: mark output only fields of dir_struct as such Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 06/13] unpack-trees: clean up some flow control Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 07/13] sparse-checkout: avoid using internal API of unpack-trees Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 08/13] sparse-checkout: avoid using internal API of unpack-trees, take 2 Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 09/13] unpack_trees: start splitting internal fields from public API Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 10/13] unpack-trees: mark fields only used internally as internal Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 11/13] unpack-trees: rewrap a few overlong lines from previous patch Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 12/13] unpack-trees: special case read-tree debugging as internal usage Elijah Newren via GitGitGadget
2023-02-27 15:28 ` [PATCH v3 13/13] unpack-trees: add usage notices around df_conflict_entry Elijah Newren via GitGitGadget
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