From: Michael Haggerty <mhagger@alum.mit.edu>
To: Junio C Hamano <gitster@pobox.com>
Cc: Jeff King <peff@peff.net>, Johan Herland <johan@herland.net>,
Ramsay Jones <ramsay@ramsay1.demon.co.uk>,
git@vger.kernel.org, Michael Haggerty <mhagger@alum.mit.edu>
Subject: [PATCH v2 00/12] Fix some reference-related races
Date: Wed, 19 Jun 2013 09:51:21 +0200 [thread overview]
Message-ID: <1371628293-28824-1-git-send-email-mhagger@alum.mit.edu> (raw)
Re-roll of mh/ref-races. Thanks to Peff, Junio, and Ramsay for
reviewing v1.
Changes since v1:
* mh/reflife has graduated to master, so this patch series now applies
directly to master.
* Some trivial constness adjustments were necessary because of
21a6b9fa read-cache: mark cache_entry pointers const
* Better explain (in comments and log message) patch 01/12.
* In 04/12, access struct lock_file::fd directly instead of keeping
a separate copy in struct packed_ref_cache.
Please note that this patch series's usage of stat()/fstat() causes
breakages under cygwin, pointed out by Ramsay Jones. He has
graciously offered to work on this issue.
The last patch is still optional--it avoids a little bit of work when
rewriting the packed-refs file, but relies on the stat-based freshness
check not giving a false negative.
Jeff King (2):
get_packed_ref_cache: reload packed-refs file when it changes
for_each_ref: load all loose refs before packed refs
Michael Haggerty (10):
repack_without_ref(): split list curation and entry writing
pack_refs(): split creation of packed refs and entry writing
refs: wrap the packed refs cache in a level of indirection
refs: implement simple transactions for the packed-refs file
refs: manage lifetime of packed refs cache via reference counting
do_for_each_entry(): increment the packed refs cache refcount
packed_ref_cache: increment refcount when locked
Extract a struct stat_data from cache_entry
add a stat_validity struct
refs: do not invalidate the packed-refs cache unnecessarily
builtin/clone.c | 7 +-
builtin/ls-files.c | 12 +-
cache.h | 60 ++++++++--
read-cache.c | 181 ++++++++++++++++++------------
refs.c | 314 ++++++++++++++++++++++++++++++++++++++++++++---------
refs.h | 27 ++++-
6 files changed, 469 insertions(+), 132 deletions(-)
--
1.8.3.1
next reply other threads:[~2013-06-19 7:51 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-19 7:51 Michael Haggerty [this message]
2013-06-19 7:51 ` [PATCH v2 01/12] repack_without_ref(): split list curation and entry writing Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 02/12] pack_refs(): split creation of packed refs " Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 03/12] refs: wrap the packed refs cache in a level of indirection Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 04/12] refs: implement simple transactions for the packed-refs file Michael Haggerty
2013-06-19 19:18 ` Junio C Hamano
2013-06-20 7:49 ` Michael Haggerty
2013-06-20 11:55 ` Jeff King
2013-06-20 18:03 ` Michael Haggerty
2013-06-20 19:55 ` Jeff King
2013-06-20 17:11 ` Junio C Hamano
2013-06-20 17:58 ` Michael Haggerty
2013-06-20 18:36 ` Junio C Hamano
2013-06-19 7:51 ` [PATCH v2 05/12] refs: manage lifetime of packed refs cache via reference counting Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 06/12] do_for_each_entry(): increment the packed refs cache refcount Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 07/12] packed_ref_cache: increment refcount when locked Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 08/12] Extract a struct stat_data from cache_entry Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 09/12] add a stat_validity struct Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 10/12] get_packed_ref_cache: reload packed-refs file when it changes Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 11/12] for_each_ref: load all loose refs before packed refs Michael Haggerty
2013-06-19 7:51 ` [PATCH v2 12/12] refs: do not invalidate the packed-refs cache unnecessarily Michael Haggerty
2013-06-19 18:56 ` [PATCH v2 00/12] Fix some reference-related races Jeff King
2013-06-20 9:09 ` Michael Haggerty
2013-06-20 11:52 ` Jeff King
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