From: Lars Schneider <larsxschneider@gmail.com>
To: Eric Wong <e@80x24.org>
Cc: Git Mailing List <git@vger.kernel.org>,
gitster@pobox.com, tboegi@web.de, Johannes.Schindelin@gmx.de
Subject: Re: [PATCH v1 2/2] read-cache: make sure file handles are not inherited by child processes
Date: Wed, 7 Sep 2016 15:39:49 +0200 [thread overview]
Message-ID: <7B903664-0324-4375-A81C-1317020CBE9B@gmail.com> (raw)
In-Reply-To: <20160906210632.GA28263@starla>
> On 06 Sep 2016, at 23:06, Eric Wong <e@80x24.org> wrote:
>
> larsxschneider@gmail.com wrote:
>> static int ce_compare_data(const struct cache_entry *ce, struct stat *st)
>> {
>> int match = -1;
>> - int fd = open(ce->name, O_RDONLY);
>> + int fd = open(ce->name, O_RDONLY | O_CLOEXEC);
>>
>> if (fd >= 0) {
>> unsigned char sha1[20];
>
> Also, this needs to check EINVAL when O_CLOEXEC != 0 the same
> way create_tempfile currently does. Somebody could be building
> with modern headers but running an old kernel that doesn't
> understand O_CLOEXEC.
>
> There should probably be a open() wrapper for handling this case
> since we're now up to 3 places where open(... O_CLOEXEC) is
> used.
Right! Actually "sha1_file.c:git_open_noatime()" is already a wrapper, no?
Can't we use this here? The O_NOATIME flag shouldn't hurt, right?
Thanks,
Lars
next prev parent reply other threads:[~2016-09-07 13:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-05 21:11 [PATCH v1 0/2] Use CLOEXEC to avoid fd leaks larsxschneider
2016-09-05 21:11 ` [PATCH v1 1/2] sha1_file: open window into packfiles with CLOEXEC larsxschneider
2016-09-05 22:27 ` Eric Wong
2016-09-06 9:36 ` Jakub Narębski
2016-09-06 11:38 ` Johannes Schindelin
2016-09-07 13:20 ` Lars Schneider
2016-09-07 18:17 ` Eric Wong
2016-09-05 21:11 ` [PATCH v1 2/2] read-cache: make sure file handles are not inherited by child processes larsxschneider
2016-09-06 11:41 ` Johannes Schindelin
2016-09-06 21:06 ` Eric Wong
2016-09-07 13:39 ` Lars Schneider [this message]
2016-09-07 18:10 ` Eric Wong
2016-09-07 18:23 ` Junio C Hamano
2016-09-08 5:57 ` Lars Schneider
2016-09-08 17:37 ` Junio C Hamano
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
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=7B903664-0324-4375-A81C-1317020CBE9B@gmail.com \
--to=larsxschneider@gmail.com \
--cc=Johannes.Schindelin@gmx.de \
--cc=e@80x24.org \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=tboegi@web.de \
/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.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
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 read-only IMAP folder(s) and NNTP newsgroup(s).