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From: "Martin Ågren" <martin.agren@gmail.com>
To: git@vger.kernel.org
Cc: "Michael Haggerty" <mhagger@alum.mit.edu>,
	"Jeff King" <peff@peff.net>, "Paul Tan" <pyokagan@gmail.com>,
	"Christian Couder" <christian.couder@gmail.com>,
	"Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>,
	"Junio C Hamano" <gitster@pobox.com>
Subject: [PATCH v2 00/12] Re: various lockfile-leaks and -fixes
Date: Thu,  5 Oct 2017 22:32:02 +0200	[thread overview]
Message-ID: <cover.1507228170.git.martin.agren@gmail.com> (raw)
In-Reply-To: <xmqqy3osiwe6.fsf@gitster.mtv.corp.google.com>

On 3 October 2017 at 08:21, Junio C Hamano <gitster@pobox.com> wrote:
> Martin Ågren <martin.agren@gmail.com> writes:
>> On 2 October 2017 at 08:30, Junio C Hamano <gitster@pobox.com> wrote:
>>
>> Thanks both of you for your comments. Based on them, I have made the
>> following notes:
>> ...
>> Especially 9-11 make me feel like wanting to re-roll this, for future
>> readers if nothing else. I expect to be able to do so in the middle of
>> this week (I don't know how this interferes with Junio's definition of
>> "soonish").
>
> OK, then I'll hold off and expect such a reroll.

Here it is. Several patches are unchanged (fetched from Junio's tree and
reposted). There are two new patches (5, 12) to address some similar or
related issues noticed by Peff and Junio.

I think this got better by getting rid of `CLOSE_LOCK` entirely instead
of playing with `HAS_SINGLE_BIT()`. Patch 11 also improved IMHO by
squashing patches 10-11 of v1 and presenting the issues a bit
differently in the commit message. Thanks for your feedback, both of
you.

Martin

Martin Ågren (12):
  sha1_file: do not leak `lock_file`
  treewide: prefer lockfiles on the stack
  lockfile: fix documentation on `close_lock_file_gently()`
  tempfile: fix documentation on `delete_tempfile()`
  checkout-index: simplify locking logic
  cache-tree: simplify locking logic
  apply: move lockfile into `apply_state`
  apply: remove `newfd` from `struct apply_state`
  cache.h: document `write_locked_index()`
  read-cache: drop explicit `CLOSE_LOCK`-flag
  read-cache: leave lock in right state in `write_locked_index()`
  read_cache: roll back lock in `update_index_if_able()`

 apply.c                  | 25 ++++++++-----------------
 apply.h                  |  8 +++-----
 builtin/am.c             | 27 ++++++++++++---------------
 builtin/apply.c          |  4 +---
 builtin/checkout-index.c |  8 +++-----
 builtin/checkout.c       | 14 ++++++--------
 builtin/clone.c          |  7 +++----
 builtin/commit.c         | 10 +++++-----
 builtin/diff.c           |  7 +++----
 builtin/difftool.c       |  1 -
 cache-tree.c             | 12 ++++--------
 cache.h                  | 25 ++++++++++++++++++++++++-
 config.c                 | 17 ++++++++---------
 lockfile.h               |  4 ++--
 merge-recursive.c        |  6 +++---
 merge.c                  |  8 +++-----
 read-cache.c             | 28 ++++++++++++++--------------
 sequencer.c              |  1 -
 sha1_file.c              | 19 ++++++++-----------
 tempfile.h               |  8 ++++----
 wt-status.c              |  8 ++++----
 21 files changed, 118 insertions(+), 129 deletions(-)

-- 
2.14.2.666.gea220ee40


  reply	other threads:[~2017-10-05 20:32 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-01 14:56 [PATCH 00/11] various lockfile-leaks and -fixes Martin Ågren
2017-10-01 14:56 ` [PATCH 01/11] sha1_file: do not leak `lock_file` Martin Ågren
2017-10-02  5:26   ` Jeff King
2017-10-02 10:15     ` Martin Ågren
2017-10-01 14:56 ` [PATCH 02/11] treewide: prefer lockfiles on the stack Martin Ågren
2017-10-02  3:37   ` Junio C Hamano
2017-10-02  4:12     ` Martin Ågren
2017-10-02  5:34   ` Jeff King
2017-10-01 14:56 ` [PATCH 03/11] lockfile: fix documentation on `close_lock_file_gently()` Martin Ågren
2017-10-02  5:35   ` Jeff King
2017-10-01 14:56 ` [PATCH 04/11] tempfile: fix documentation on `delete_tempfile()` Martin Ågren
2017-10-02  5:38   ` Jeff King
2017-10-01 14:56 ` [PATCH 05/11] cache-tree: simplify locking logic Martin Ågren
2017-10-02  3:40   ` Junio C Hamano
2017-10-02  5:41   ` Jeff King
2017-10-01 14:56 ` [PATCH 06/11] apply: move lockfile into `apply_state` Martin Ågren
2017-10-02  5:48   ` Jeff King
2017-10-01 14:56 ` [PATCH 07/11] apply: remove `newfd` from `struct apply_state` Martin Ågren
2017-10-02  5:50   ` Jeff King
2017-10-01 14:56 ` [PATCH 08/11] cache.h: document `write_locked_index()` Martin Ågren
2017-10-01 14:56 ` [PATCH 09/11] read-cache: require flags for `write_locked_index()` Martin Ågren
2017-10-02  3:49   ` Junio C Hamano
2017-10-02  4:14     ` Martin Ågren
2017-10-02 10:16       ` Martin Ågren
2017-10-02  6:00   ` Jeff King
2017-10-01 14:56 ` [PATCH 10/11] read-cache: don't leave dangling pointer in `do_write_index()` Martin Ågren
2017-10-02  6:15   ` Jeff King
2017-10-02  6:20     ` Jeff King
2017-10-01 14:56 ` [PATCH 11/11] read-cache: roll back lock on error with `COMMIT_LOCK` Martin Ågren
2017-10-02  4:01   ` Junio C Hamano
2017-10-02  2:37 ` [PATCH 00/11] various lockfile-leaks and -fixes Junio C Hamano
2017-10-02  6:22 ` Jeff King
2017-10-02  6:30   ` Junio C Hamano
2017-10-02 10:19     ` Martin Ågren
2017-10-03  6:21       ` Junio C Hamano
2017-10-05 20:32         ` Martin Ågren [this message]
2017-10-05 20:32           ` [PATCH v2 01/12] sha1_file: do not leak `lock_file` Martin Ågren
2017-10-06  1:17             ` Junio C Hamano
2017-10-05 20:32           ` [PATCH v2 02/12] treewide: prefer lockfiles on the stack Martin Ågren
2017-10-05 20:32           ` [PATCH v2 03/12] lockfile: fix documentation on `close_lock_file_gently()` Martin Ågren
2017-10-05 20:32           ` [PATCH v2 04/12] tempfile: fix documentation on `delete_tempfile()` Martin Ågren
2017-10-05 20:32           ` [PATCH v2 05/12] checkout-index: simplify locking logic Martin Ågren
2017-10-06  1:21             ` Junio C Hamano
2017-10-05 20:32           ` [PATCH v2 06/12] cache-tree: " Martin Ågren
2017-10-05 20:32           ` [PATCH v2 07/12] apply: move lockfile into `apply_state` Martin Ågren
2017-10-05 20:32           ` [PATCH v2 08/12] apply: remove `newfd` from `struct apply_state` Martin Ågren
2017-10-05 20:32           ` [PATCH v2 09/12] cache.h: document `write_locked_index()` Martin Ågren
2017-10-05 20:32           ` [PATCH v2 10/12] read-cache: drop explicit `CLOSE_LOCK`-flag Martin Ågren
2017-10-06  1:39             ` Junio C Hamano
2017-10-06 11:02               ` Martin Ågren
2017-10-05 20:32           ` [PATCH v2 11/12] read-cache: leave lock in right state in `write_locked_index()` Martin Ågren
2017-10-06  2:01             ` Junio C Hamano
2017-10-06 11:04               ` Martin Ågren
2017-10-06 12:02                 ` Junio C Hamano
2017-10-06 19:44                   ` Martin Ågren
2017-10-06 20:12                     ` [PATCH v3 00/12] Re: various lockfile-leaks and -fixes Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 01/12] sha1_file: do not leak `lock_file` Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 02/12] treewide: prefer lockfiles on the stack Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 03/12] lockfile: fix documentation on `close_lock_file_gently()` Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 04/12] tempfile: fix documentation on `delete_tempfile()` Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 05/12] checkout-index: simplify locking logic Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 06/12] cache-tree: " Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 07/12] apply: move lockfile into `apply_state` Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 08/12] apply: remove `newfd` from `struct apply_state` Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 09/12] cache.h: document `write_locked_index()` Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 10/12] read-cache: drop explicit `CLOSE_LOCK`-flag Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 11/12] read-cache: leave lock in right state in `write_locked_index()` Martin Ågren
2017-10-06 20:12                       ` [PATCH v3 12/12] read_cache: roll back lock in `update_index_if_able()` Martin Ågren
2017-10-05 20:32           ` [PATCH v2 " Martin Ågren

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