From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: git@vger.kernel.org
Cc: "Junio C Hamano" <gitster@pobox.com>,
"Phillip Wood" <phillip.wood123@gmail.com>,
"Jeff King" <peff@peff.net>,
"Derrick Stolee" <derrickstolee@github.com>,
"Elijah Newren" <newren@gmail.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: [PATCH 05/17] dir.c: free "ident" and "exclude_per_dir" in "struct untracked_cache"
Date: Thu, 3 Nov 2022 18:06:04 +0100 [thread overview]
Message-ID: <patch-05.17-29123e62391-20221103T164632Z-avarab@gmail.com> (raw)
In-Reply-To: <cover-00.17-00000000000-20221103T164632Z-avarab@gmail.com>
When the "ident" member of the structure was added in
1e8fef609e7 (untracked cache: guard and disable on system changes,
2015-03-08) this function wasn't updated to free it. Let's do so.
Let's also free the "exclude_per_dir" memory we've been leaking
since[1], while making sure not to free() the constant ".gitignore"
string we add by default[2].
As we now have three struct members we're freeing let's change
free_untracked_cache() to return early if "uc" isn't defined. We won't
hand it to free() now, but that was just for convenience, once we're
dealing with >=2 struct members this pattern is more convenient.
1. f9e6c649589 (untracked cache: load from UNTR index extension,
2015-03-08)
2. 039bc64e886 (core.excludesfile clean-up, 2007-11-14)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
dir.c | 10 +++++++---
dir.h | 1 +
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/dir.c b/dir.c
index d604d1bab98..fbdb24fc819 100644
--- a/dir.c
+++ b/dir.c
@@ -3581,8 +3581,12 @@ static void free_untracked(struct untracked_cache_dir *ucd)
void free_untracked_cache(struct untracked_cache *uc)
{
- if (uc)
- free_untracked(uc->root);
+ if (!uc)
+ return;
+
+ free(uc->exclude_per_dir_to_free);
+ strbuf_release(&uc->ident);
+ free_untracked(uc->root);
free(uc);
}
@@ -3739,7 +3743,7 @@ struct untracked_cache *read_untracked_extension(const void *data, unsigned long
next + offset + hashsz);
uc->dir_flags = get_be32(next + ouc_offset(dir_flags));
exclude_per_dir = (const char *)next + exclude_per_dir_offset;
- uc->exclude_per_dir = xstrdup(exclude_per_dir);
+ uc->exclude_per_dir = uc->exclude_per_dir_to_free = xstrdup(exclude_per_dir);
/* NUL after exclude_per_dir is covered by sizeof(*ouc) */
next += exclude_per_dir_offset + strlen(exclude_per_dir) + 1;
if (next >= end)
diff --git a/dir.h b/dir.h
index 674747d93af..8acfc044181 100644
--- a/dir.h
+++ b/dir.h
@@ -188,6 +188,7 @@ struct untracked_cache {
struct oid_stat ss_info_exclude;
struct oid_stat ss_excludes_file;
const char *exclude_per_dir;
+ char *exclude_per_dir_to_free;
struct strbuf ident;
/*
* dir_struct#flags must match dir_flags or the untracked
--
2.38.0.1451.g86b35f4140a
next prev parent reply other threads:[~2022-11-03 17:07 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-03 17:05 [PATCH 00/17] leak fixes: use existing constructors & other trivia Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 01/17] tests: mark tests as passing with SANITIZE=leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 02/17] {reset,merge}: call discard_index() before returning Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 03/17] commit: discard partial cache before (re-)reading it Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 04/17] read-cache.c: clear and free "sparse_checkout_patterns" Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` Ævar Arnfjörð Bjarmason [this message]
2022-11-03 17:06 ` [PATCH 06/17] built-ins & libs & helpers: add/move destructors, fix leaks Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 07/17] unpack-file: fix ancient leak in create_temp_file() Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 08/17] revision API: call graph_clear() in release_revisions() Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 09/17] ls-files: fix a --with-tree memory leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 10/17] sequencer.c: fix "opts->strategy" leak in read_strategy_opts() Ævar Arnfjörð Bjarmason
2022-11-04 14:50 ` Phillip Wood
2022-11-04 21:44 ` Taylor Blau
2022-11-05 12:43 ` Ævar Arnfjörð Bjarmason
2022-11-08 15:00 ` Phillip Wood
2022-11-08 15:26 ` Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 11/17] connected.c: free the "struct packed_git" Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 12/17] sequencer.c: fix a pick_commits() leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 13/17] rebase: don't leak on "--abort" Ævar Arnfjörð Bjarmason
2022-11-04 14:42 ` Phillip Wood
2022-11-05 12:01 ` Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 14/17] sequencer.c: fix sequencer_continue() leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 15/17] cherry-pick: free "struct replay_opts" members Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 16/17] revert: fix parse_options_concat() leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 17/17] built-ins: use free() not UNLEAK() if trivial, rm dead code Ævar Arnfjörð Bjarmason
2022-11-04 15:20 ` [PATCH 00/17] leak fixes: use existing constructors & other trivia Phillip Wood
2022-11-05 12:46 ` Ævar Arnfjörð Bjarmason
2022-11-07 9:46 ` Phillip Wood
2022-11-08 18:17 ` [PATCH v2 00/15] " Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 01/15] tests: mark tests as passing with SANITIZE=leak Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 02/15] {reset,merge}: call discard_index() before returning Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 03/15] commit: discard partial cache before (re-)reading it Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 04/15] read-cache.c: clear and free "sparse_checkout_patterns" Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 05/15] dir.c: free "ident" and "exclude_per_dir" in "struct untracked_cache" Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 06/15] built-ins & libs & helpers: add/move destructors, fix leaks Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 07/15] unpack-file: fix ancient leak in create_temp_file() Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 08/15] revision API: call graph_clear() in release_revisions() Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 09/15] ls-files: fix a --with-tree memory leak Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 10/15] sequencer.c: fix "opts->strategy" leak in read_strategy_opts() Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 11/15] connected.c: free the "struct packed_git" Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 12/15] rebase: don't leak on "--abort" Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 13/15] cherry-pick: free "struct replay_opts" members Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 14/15] revert: fix parse_options_concat() leak Ævar Arnfjörð Bjarmason
2022-11-08 18:17 ` [PATCH v2 15/15] built-ins: use free() not UNLEAK() if trivial, rm dead code Ævar Arnfjörð Bjarmason
2022-11-08 20:54 ` [PATCH v2 00/15] leak fixes: use existing constructors & other trivia Taylor Blau
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