[PATCH 00/11] midx: clean up t5319 under 'SANITIZE=leak'

From: Taylor Blau <me@ttaylorr.com>
To: git@vger.kernel.org
Cc: avarab@gmail.com, dstolee@microsoft.com, peff@peff.net
Subject: [PATCH 00/11] midx: clean up t5319 under 'SANITIZE=leak'
Date: Wed, 20 Oct 2021 23:39:44 -0400	[thread overview]
Message-ID: <cover.1634787555.git.me@ttaylorr.com> (raw)

Here is a topic that Ævar got me interested when he mentioned that t5319 is
leaky[1].

This is the result of trying to get t5319 to pass when compiling with
SANITIZE=leak. About 50% of the fixes are in the MIDX code, another 40% are in
the pack-bitmap code, and the remaining 10% are sort of random.

I tried to separate these out based on their respective areas. The last 10% are
all from leaking memory in the rev_info structure, which I punted on for now by
just UNLEAK()-ing it. That's all done in the last patch. If we choose to take
that last patch, then t5319 passes even under SANITIZE=leak builds. But it's a
little gross, so I'm happy to leave it out if others would prefer.

This is based on tb/fix-midx-rename-while-mapped, with a back-merge of
js/windows-ci-path-fix in order to appease CI. It also contains a little bit of
overlap with a patch[2] from Ævar in another series, which he and I discovered
independently. I cherry-picked his patch, since I haven't seen much action on
that series lately.

[1]: https://lore.kernel.org/git/87wnmph73b.fsf@evledraar.gmail.com/
[2]: https://lore.kernel.org/git/patch-v3-08.10-e0a3510dd88-20211013T222329Z-avarab@gmail.com/

Taylor Blau (10):
  midx.c: clean up chunkfile after reading the MIDX
  midx.c: don't leak MIDX from verify_midx_file
  t/helper/test-read-midx.c: free MIDX within read_midx_file()
  builtin/pack-objects.c: don't leak memory via arguments
  builtin/repack.c: avoid leaking child arguments
  builtin/multi-pack-index.c: don't leak concatenated options
  pack-bitmap.c: avoid leaking via midx_bitmap_filename()
  pack-bitmap.c: don't leak type-level bitmaps
  pack-bitmap.c: more aggressively free in free_bitmap_index()
  t5319: UNLEAK() the remaining leaks

Ævar Arnfjörð Bjarmason (1):
  pack-bitmap-write.c: don't return without stop_progress()

 builtin/log.c               |  1 +
 builtin/multi-pack-index.c  |  4 ++++
 builtin/pack-objects.c      | 12 ++++++++----
 builtin/repack.c            | 35 ++++++++++++++++++++++++-----------
 builtin/rev-list.c          |  2 ++
 midx.c                      |  7 +++++--
 pack-bitmap-write.c         |  8 +++++---
 pack-bitmap.c               | 18 ++++++++++++++++--
 t/helper/test-read-midx.c   |  3 ++-
 t/t5319-multi-pack-index.sh |  1 +
 10 files changed, 68 insertions(+), 23 deletions(-)

-- 
2.33.0.96.g73915697e6