From: Michael Haggerty <mhagger@alum.mit.edu>
To: "Junio C Hamano" <gitster@pobox.com>,
"Johannes Sixt" <j6t@kdbg.org>,
"Torsten Bögershausen" <tboegi@web.de>
Cc: Jeff King <peff@peff.net>,
git@vger.kernel.org, Michael Haggerty <mhagger@alum.mit.edu>
Subject: [PATCH v4 00/32] Lockfile correctness and refactoring
Date: Sat, 6 Sep 2014 09:50:14 +0200 [thread overview]
Message-ID: <1409989846-22401-1-git-send-email-mhagger@alum.mit.edu> (raw)
Sorry for the long delay since v3. This version mostly cleans up a
couple more places where the lockfile object was left in an
ill-defined state. Thanks to Johannes Sixt and Torsten Bögershausen
for their review of v3.
I believe that this series addresses all of the comments from v1 [1],
v2 [2], and v3 [3].
This series applies to the current "master". There is a trivial
conflict between these changes and "next", and a few not-too-serious
conflicts between these changes and Ronnie's reference-related series
in "pu". I've figured out how to resolve the conflicts locally. Is
there some form in which I can put the conflict resolution that would
help you?
Changes since v3:
* Rebase to the current master, including adjusting the patch series
for 93dcaea2 (addition of reopen_lock_file()).
* Perform the internal consistency check right away in
commit_lock_file(), rather than after possibly having closed the
file.
* Improve the explanation of the rationale for marking lock_file
fields volatile.
* Fix comments that still referred to lock_file::filename[0] even
though it is now a strbuf.
* Change rollback_lock_file() to exit early if the lock is not active
(rather than nesting the rest of the function in an "if" statement).
* Fix Johannes's email address in the trailers.
* Extract a function commit_lock_file_to(lk, filename) and delegate to
it from commit_lock_file() and commit_locked_index() so that the
latter gets the benefit of the improvements in this patch series.
[1] http://thread.gmane.org/gmane.comp.version-control.git/245609
[2] http://thread.gmane.org/gmane.comp.version-control.git/245801
[3] http://thread.gmane.org/gmane.comp.version-control.git/246222
Michael Haggerty (32):
unable_to_lock_die(): rename function from unable_to_lock_index_die()
api-lockfile: expand the documentation
rollback_lock_file(): do not clear filename redundantly
rollback_lock_file(): exit early if lock is not active
rollback_lock_file(): set fd to -1
lockfile: unlock file if lockfile permissions cannot be adjusted
hold_lock_file_for_append(): release lock on errors
lock_file(): always add lock_file object to lock_file_list
lockfile.c: document the various states of lock_file objects
cache.h: define constants LOCK_SUFFIX and LOCK_SUFFIX_LEN
delete_ref_loose(): don't muck around in the lock_file's filename
prepare_index(): declare return value to be (const char *)
write_packed_entry_fn(): convert cb_data into a (const int *)
lock_file(): exit early if lockfile cannot be opened
remove_lock_file(): call rollback_lock_file()
commit_lock_file(): inline temporary variable
commit_lock_file(): die() if called for unlocked lockfile object
commit_lock_file(): if close fails, roll back
commit_lock_file(): rollback lock file on failure to rename
api-lockfile: document edge cases
dump_marks(): remove a redundant call to rollback_lock_file()
git_config_set_multivar_in_file(): avoid call to rollback_lock_file()
lockfile: avoid transitory invalid states
struct lock_file: declare some fields volatile
try_merge_strategy(): remove redundant lock_file allocation
try_merge_strategy(): use a statically-allocated lock_file object
commit_lock_file(): use a strbuf to manage temporary space
Change lock_file::filename into a strbuf
resolve_symlink(): use a strbuf for internal scratch space
resolve_symlink(): take a strbuf parameter
trim_last_path_elm(): replace last_path_elm()
Extract a function commit_lock_file_to()
Documentation/technical/api-lockfile.txt | 67 +++++--
builtin/commit.c | 16 +-
builtin/merge.c | 15 +-
builtin/reflog.c | 2 +-
builtin/update-index.c | 2 +-
cache.h | 16 +-
config.c | 28 +--
fast-import.c | 4 +-
lockfile.c | 299 ++++++++++++++++++-------------
read-cache.c | 12 +-
refs.c | 29 +--
shallow.c | 6 +-
12 files changed, 296 insertions(+), 200 deletions(-)
--
2.1.0
next reply other threads:[~2014-09-06 7:58 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-06 7:50 Michael Haggerty [this message]
2014-09-06 7:50 ` [PATCH v4 01/32] unable_to_lock_die(): rename function from unable_to_lock_index_die() Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 02/32] api-lockfile: expand the documentation Michael Haggerty
2014-09-09 22:40 ` Junio C Hamano
2014-09-06 7:50 ` [PATCH v4 03/32] rollback_lock_file(): do not clear filename redundantly Michael Haggerty
2014-09-11 19:13 ` Ronnie Sahlberg
2014-09-06 7:50 ` [PATCH v4 04/32] rollback_lock_file(): exit early if lock is not active Michael Haggerty
2014-09-11 19:13 ` Ronnie Sahlberg
2014-09-06 7:50 ` [PATCH v4 05/32] rollback_lock_file(): set fd to -1 Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 06/32] lockfile: unlock file if lockfile permissions cannot be adjusted Michael Haggerty
2014-09-09 22:39 ` Junio C Hamano
2014-09-12 11:03 ` Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 07/32] hold_lock_file_for_append(): release lock on errors Michael Haggerty
2014-09-09 22:41 ` Junio C Hamano
2014-09-12 11:04 ` Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 08/32] lock_file(): always add lock_file object to lock_file_list Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 09/32] lockfile.c: document the various states of lock_file objects Michael Haggerty
2014-09-11 19:57 ` Ronnie Sahlberg
2014-09-06 7:50 ` [PATCH v4 10/32] cache.h: define constants LOCK_SUFFIX and LOCK_SUFFIX_LEN Michael Haggerty
2014-09-11 22:15 ` Ronnie Sahlberg
2014-09-12 16:44 ` Michael Haggerty
2014-09-11 22:42 ` Ronnie Sahlberg
2014-09-12 17:13 ` Michael Haggerty
2014-09-12 17:32 ` Ronnie Sahlberg
2014-09-06 7:50 ` [PATCH v4 11/32] delete_ref_loose(): don't muck around in the lock_file's filename Michael Haggerty
2014-09-13 7:41 ` Johannes Sixt
2014-09-14 6:27 ` Michael Haggerty
2014-09-14 6:38 ` Michael Haggerty
2014-09-14 14:49 ` Johannes Sixt
2014-09-06 7:50 ` [PATCH v4 12/32] prepare_index(): declare return value to be (const char *) Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 13/32] write_packed_entry_fn(): convert cb_data into a (const int *) Michael Haggerty
2014-09-11 19:55 ` Ronnie Sahlberg
2014-09-06 7:50 ` [PATCH v4 14/32] lock_file(): exit early if lockfile cannot be opened Michael Haggerty
2014-09-11 22:49 ` Ronnie Sahlberg
2014-09-06 7:50 ` [PATCH v4 15/32] remove_lock_file(): call rollback_lock_file() Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 16/32] commit_lock_file(): inline temporary variable Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 17/32] commit_lock_file(): die() if called for unlocked lockfile object Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 18/32] commit_lock_file(): if close fails, roll back Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 19/32] commit_lock_file(): rollback lock file on failure to rename Michael Haggerty
2014-09-10 7:55 ` Jeff King
2014-09-10 12:55 ` Duy Nguyen
2014-09-06 7:50 ` [PATCH v4 20/32] api-lockfile: document edge cases Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 21/32] dump_marks(): remove a redundant call to rollback_lock_file() Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 22/32] git_config_set_multivar_in_file(): avoid " Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 23/32] lockfile: avoid transitory invalid states Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 24/32] struct lock_file: declare some fields volatile Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 25/32] try_merge_strategy(): remove redundant lock_file allocation Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 26/32] try_merge_strategy(): use a statically-allocated lock_file object Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 27/32] commit_lock_file(): use a strbuf to manage temporary space Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 28/32] Change lock_file::filename into a strbuf Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 29/32] resolve_symlink(): use a strbuf for internal scratch space Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 30/32] resolve_symlink(): take a strbuf parameter Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 31/32] trim_last_path_elm(): replace last_path_elm() Michael Haggerty
2014-09-06 7:50 ` [PATCH v4 32/32] Extract a function commit_lock_file_to() Michael Haggerty
2014-09-07 14:21 ` [PATCH v4 00/32] Lockfile correctness and refactoring Torsten Bögershausen
2014-09-12 12:50 ` Michael Haggerty
2014-09-08 22:35 ` Junio C Hamano
2014-09-10 8:13 ` Jeff King
2014-09-10 10:25 ` Duy Nguyen
2014-09-10 10:30 ` Jeff King
2014-09-10 16:51 ` Junio C Hamano
2014-09-10 19:11 ` Jeff King
2014-09-12 11:28 ` Michael Haggerty
2014-09-12 11:13 ` Michael Haggerty
2014-09-12 14:21 ` Michael Haggerty
2014-09-13 18:51 ` Jeff King
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