From: Linus Torvalds <torvalds@linux-foundation.org>
To: Junio C Hamano <gitster@pobox.com>
Cc: Dmitry Potapov <dpotapov@gmail.com>,
Git Mailing List <git@vger.kernel.org>,
Kjetil Barvik <barvik@broadpark.no>
Subject: Re: [PATCH 7/3] Make index preloading check the whole path to the file
Date: Thu, 9 Jul 2009 13:56:17 -0700 (PDT) [thread overview]
Message-ID: <alpine.LFD.2.01.0907091351000.3352@localhost.localdomain> (raw)
In-Reply-To: <alpine.LFD.2.01.0907091348490.3352@localhost.localdomain>
Ok, with these patches, the strace of the index preload looks very clean,
and has the required tests for the directory components too:
...
26504 lstat("connect.c", {st_mode=S_IFREG|0664, st_size=14312, ...}) = 0
26504 lstat("contrib", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0
26504 lstat("contrib/README", {st_mode=S_IFREG|0664, st_size=2113, ...}) = 0
26504 lstat("contrib/blameview", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0
26504 lstat("contrib/blameview/blameview.perl", {st_mode=S_IFREG|0775, st_size=3776, ...}) = 0
...
ie now it actualyl verifies that the directories leading up to filenames
are really directories by doing lstat() on them. And the symlink cache
means that it doesn't do it for every single pathname, only for the first
lookup per thread and directory.
Maybe Kjetil wants to check the changes, but quite frankly, it looked
pretty trivial to make that whole has_symlink_leading_path() be
thread-safe.
Linus
next prev parent reply other threads:[~2009-07-09 20:56 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-07 0:05 Too many 'stat' calls by git-status on Windows Dmitry Potapov
2009-07-08 19:49 ` Ramsay Jones
2009-07-09 2:04 ` Linus Torvalds
2009-07-09 2:35 ` Linus Torvalds
2009-07-09 2:40 ` [PATCH 1/3] Add 'fill_directory()' helper function for directory traversal Linus Torvalds
2009-07-09 2:42 ` [PATCH 2/3] Simplify read_directory[_recursive]() arguments Linus Torvalds
2009-07-09 2:43 ` [PATCH 3/3] Avoid doing extra 'lstat()'s for d_type if we have an up-to-date cache entry Linus Torvalds
2009-07-09 8:18 ` Junio C Hamano
2009-07-09 15:52 ` Linus Torvalds
2009-07-09 16:32 ` Junio C Hamano
2009-07-09 16:59 ` Linus Torvalds
2009-07-09 18:34 ` Junio C Hamano
2009-07-09 17:13 ` Linus Torvalds
2009-07-09 17:18 ` Linus Torvalds
2009-07-09 18:37 ` Junio C Hamano
2009-07-09 18:53 ` Linus Torvalds
2009-07-09 20:44 ` [PATCH 4/3] Avoid using 'lstat()' to figure out directories Linus Torvalds
2009-07-09 20:47 ` [PATCH 5/3] Prepare symlink caching for thread-safety Linus Torvalds
2009-07-09 20:48 ` [PATCH 6/3] Export thread-safe version of 'has_symlink_leading_path()' Linus Torvalds
2009-07-09 20:50 ` [PATCH 7/3] Make index preloading check the whole path to the file Linus Torvalds
2009-07-09 20:56 ` Linus Torvalds [this message]
2009-07-10 3:12 ` Junio C Hamano
2009-07-10 3:29 ` Linus Torvalds
2009-07-10 3:40 ` Linus Torvalds
2009-07-11 2:53 ` Junio C Hamano
2009-07-11 3:04 ` Linus Torvalds
2009-07-12 0:09 ` [PATCH 6/3] Export thread-safe version of 'has_symlink_leading_path()' Kjetil Barvik
2009-07-12 21:33 ` Junio C Hamano
2009-07-09 22:36 ` [PATCH 4/3] Avoid using 'lstat()' to figure out directories Paolo Bonzini
2009-07-09 23:26 ` Linus Torvalds
2009-07-09 23:52 ` Linus Torvalds
2009-07-10 0:13 ` Linus Torvalds
2009-07-09 23:37 ` Junio C Hamano
2009-07-09 21:05 ` [PATCH 3/3] Avoid doing extra 'lstat()'s for d_type if we have an up-to-date cache entry Dmitry Potapov
2009-07-09 21:52 ` Eric Blake
2009-07-09 23:30 ` [PATCH 3/3] Avoid doing extra 'lstat()'s for d_type if we have?an " Dmitry Potapov
2009-07-10 13:04 ` Dmitry Potapov
2009-07-09 23:29 ` [PATCH 3/3] Avoid doing extra 'lstat()'s for d_type if we have an " Dmitry Potapov
2009-07-09 13:50 ` Dmitry Potapov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.LFD.2.01.0907091351000.3352@localhost.localdomain \
--to=torvalds@linux-foundation.org \
--cc=barvik@broadpark.no \
--cc=dpotapov@gmail.com \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).