[PATCH 12/22] object: clear grafts when clearing parsed object pool
- From
Patrick Steinhardt <ps@pks.im>
- Date
- Aug 26, 2024, 07:22 UTC
- Message-ID
- <922b8640a55c74e91ce69f6976d20f948be55765.1724656120.git.ps@pks.im>
- In-Reply-To
- <cover.1724656120.git.ps@pks.im>
We do not clear grafts part of the parsed object pool when clearing the pool itself, which can lead to memory leaks when a repository is being cleared.
Fix this by moving `reset_commit_grafts()` into "object.c" and making it part of the `struct parsed_object_pool` interface such that we can call it from `parsed_object_pool_clear()`. Adapt `parsed_object_pool_new()` to take and store a reference to its owning repository, which is needed by `unparse_commit()`.
Signed-off-by: Patrick Steinhardt <ps@pks.im> --- commit.c | 14 +------------- commit.h | 3 ++- object.c | 14 +++++++++++++- object.h | 4 +++- repository.c | 2 +- shallow.c | 2 +- 6 files changed, 21 insertions(+), 18 deletions(-)
diff --git a/commit.c b/commit.c index ec9efc189d5..bbef0e81c65 100644 --- a/commit.c +++ b/commit.c @@ -177,7 +177,7 @@ int commit_graft_pos(struct repository *r, const struct object_id *oid) commit_graft_oid_access); } -static void unparse_commit(struct repository *r, const struct object_id *oid) +void unparse_commit(struct repository *r, const struct object_id *oid) { struct commit *c = lookup_commit(r, oid); @@ -318,18 +318,6 @@ int for_each_commit_graft(each_commit_graft_fn fn, void *cb_data) return ret; } -void reset_commit_grafts(struct repository *r) -{ - int i; - - for (i = 0; i < r->parsed_objects->grafts_nr; i++) { - unparse_commit(r, &r->parsed_objects->grafts[i]->oid); - free(r->parsed_objects->grafts[i]); - } - r->parsed_objects->grafts_nr = 0; - r->parsed_objects->commit_graft_prepared = 0; -} - struct commit_buffer { void *buffer; unsigned long size; diff --git a/commit.h b/commit.h index d62b1d93f95..5ba0f77b1eb 100644 --- a/commit.h +++ b/commit.h @@ -108,6 +108,8 @@ static inline int repo_parse_commit_no_graph(struct repository *r, void parse_commit_or_die(struct commit *item); +void unparse_commit(struct repository *r, const struct object_id *oid); + struct buffer_slab; struct buffer_slab *allocate_commit_buffer_slab(void); void free_commit_buffer_slab(struct buffer_slab *bs); @@ -240,7 +242,6 @@ int commit_graft_pos(struct repository *r, const struct object_id *oid); int register_commit_graft(struct repository *r, struct commit_graft *, int); void prepare_commit_graft(struct repository *r); struct commit_graft *lookup_commit_graft(struct repository *r, const struct object_id *oid); -void reset_commit_grafts(struct repository *r); struct commit *get_fork_point(const char *refname, struct commit *commit); diff --git a/object.c b/object.c index d756c7f2ea3..94ea8fb8d2c 100644 --- a/object.c +++ b/object.c @@ -545,11 +545,12 @@ void repo_clear_commit_marks(struct repository *r, unsigned int flags) } } -struct parsed_object_pool *parsed_object_pool_new(void) +struct parsed_object_pool *parsed_object_pool_new(struct repository *repo) { struct parsed_object_pool *o = xmalloc(sizeof(*o)); memset(o, 0, sizeof(*o)); + o->repo = repo; o->blob_state = allocate_alloc_state(); o->tree_state = allocate_alloc_state(); o->commit_state = allocate_alloc_state(); @@ -628,6 +629,16 @@ void raw_object_store_clear(struct raw_object_store *o) hashmap_clear(&o->pack_map); } +void parsed_object_pool_reset_commit_grafts(struct parsed_object_pool *o) +{ + for (int i = 0; i < o->grafts_nr; i++) { + unparse_commit(o->repo, &o->grafts[i]->oid); + free(o->grafts[i]); + } + o->grafts_nr = 0; + o->commit_graft_prepared = 0; +} + void parsed_object_pool_clear(struct parsed_object_pool *o) { /* @@ -659,6 +670,7 @@ void parsed_object_pool_clear(struct parsed_object_pool *o) free_commit_buffer_slab(o->buffer_slab); o->buffer_slab = NULL; + parsed_object_pool_reset_commit_grafts(o); clear_alloc_state(o->blob_state); clear_alloc_state(o->tree_state); clear_alloc_state(o->commit_state); diff --git a/object.h b/object.h index 05691486ebf..17f32f1103e 100644 --- a/object.h +++ b/object.h @@ -7,6 +7,7 @@ struct buffer_slab; struct repository; struct parsed_object_pool { + struct repository *repo; struct object **obj_hash; int nr_objs, obj_hash_size; @@ -31,8 +32,9 @@ struct parsed_object_pool { struct buffer_slab *buffer_slab; }; -struct parsed_object_pool *parsed_object_pool_new(void); +struct parsed_object_pool *parsed_object_pool_new(struct repository *repo); void parsed_object_pool_clear(struct parsed_object_pool *o); +void parsed_object_pool_reset_commit_grafts(struct parsed_object_pool *o); struct object_list { struct object *item; diff --git a/repository.c b/repository.c index 9825a308993..e6fc2c6aa9d 100644 --- a/repository.c +++ b/repository.c @@ -54,7 +54,7 @@ void initialize_repository(struct repository *repo) { repo->objects = raw_object_store_new(); repo->remote_state = remote_state_new(); - repo->parsed_objects = parsed_object_pool_new(); + repo->parsed_objects = parsed_object_pool_new(repo); ALLOC_ARRAY(repo->index, 1); index_state_init(repo->index, repo); diff --git a/shallow.c b/shallow.c index b8cd051e3b6..a10cf9e9d5d 100644 --- a/shallow.c +++ b/shallow.c @@ -97,7 +97,7 @@ static void reset_repository_shallow(struct repository *r) { r->parsed_objects->is_shallow = -1; stat_validity_clear(r->parsed_objects->shallow_stat); - reset_commit_grafts(r); + parsed_object_pool_reset_commit_grafts(r->parsed_objects); } int commit_shallow_file(struct repository *r, struct shallow_lock *lk)
-- 2.46.0.164.g477ce5ccd6.dirty