If we were listing objects too then the objects were buffered in an
array only reachable from a stack allocated structure. When this
function returns that array would be leaked as nobody would have
a reference to it anymore.
Historically this hasn't been a problem as the primary user of
traverse_commit_list() (the noble git-rev-list) would terminate
as soon as the function was finished, thus allowing the operating
system to cleanup memory. However we have been leaking this data
in git-pack-objects ever since that program learned how to run the
revision listing internally, rather than relying on reading object
names from git-rev-list.
To better facilitate reuse of traverse_commit_list during other
builtin tools we shouldn't leak temporary memory like this and
instead we need to clean up properly after ourselves.
Signed-off-by: Shawn O. Pearce <spearce@xxxxxxxxxxx>
---
list-objects.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/list-objects.c b/list-objects.c
index e5c88c2..4ef58e7 100644
--- a/list-objects.c
+++ b/list-objects.c
@@ -170,4 +170,11 @@ void traverse_commit_list(struct rev_info *revs,
}
for (i = 0; i < objects.nr; i++)
show_object(&objects.objects[i]);
+ free(objects.objects);
+ if (revs->pending.nr) {
+ free(revs->pending.objects);
+ revs->pending.nr = 0;
+ revs->pending.alloc = 0;
+ revs->pending.objects = NULL;
+ }
}
--
1.5.3.5.1661.gcbf0
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