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[104.178.186.189]) by smtp.gmail.com with ESMTPSA id t204-20020a0dead5000000b0055a1069886fsm2783339ywe.129.2023.05.08.14.59.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 May 2023 14:59:49 -0700 (PDT) Date: Mon, 8 May 2023 17:59:48 -0400 From: Taylor Blau To: git@vger.kernel.org Cc: Jeff King , Derrick Stolee , Junio C Hamano Subject: [PATCH 03/15] ref-filter: clear reachable list pointers after freeing Message-ID: <7fe8623f606d7abf20b39b24a849d4f8aad6ecec.1683581621.git.me@ttaylorr.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Jeff King In reach_filter(), we pop all commits from the reachable lists, leaving them empty. But because we're operating on a list pointer that was passed by value, the original filter.reachable_from pointer is left dangling. Signed-off-by: Jeff King Signed-off-by: Taylor Blau --- ref-filter.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/ref-filter.c b/ref-filter.c index 10aab14f03..b1d5022a51 100644 --- a/ref-filter.c +++ b/ref-filter.c @@ -2416,13 +2416,13 @@ void ref_array_clear(struct ref_array *array) #define EXCLUDE_REACHED 0 #define INCLUDE_REACHED 1 static void reach_filter(struct ref_array *array, - struct commit_list *check_reachable, + struct commit_list **check_reachable, int include_reached) { int i, old_nr; struct commit **to_clear; - if (!check_reachable) + if (!*check_reachable) return; CALLOC_ARRAY(to_clear, array->nr); @@ -2432,7 +2432,7 @@ static void reach_filter(struct ref_array *array, } tips_reachable_from_bases(the_repository, - check_reachable, + *check_reachable, to_clear, array->nr, UNINTERESTING); @@ -2453,8 +2453,8 @@ static void reach_filter(struct ref_array *array, clear_commit_marks_many(old_nr, to_clear, ALL_REV_FLAGS); - while (check_reachable) { - struct commit *merge_commit = pop_commit(&check_reachable); + while (*check_reachable) { + struct commit *merge_commit = pop_commit(check_reachable); clear_commit_marks(merge_commit, ALL_REV_FLAGS); } @@ -2551,8 +2551,8 @@ int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int clear_contains_cache(&ref_cbdata.no_contains_cache); /* Filters that need revision walking */ - reach_filter(array, filter->reachable_from, INCLUDE_REACHED); - reach_filter(array, filter->unreachable_from, EXCLUDE_REACHED); + reach_filter(array, &filter->reachable_from, INCLUDE_REACHED); + reach_filter(array, &filter->unreachable_from, EXCLUDE_REACHED); save_commit_buffer = save_commit_buffer_orig; return ret; -- 2.40.1.477.g956c797dfc