From: Andi Kleen <andi@firstfloor.org>
To: Bert Wesarg <bert.wesarg@googlemail.com>
Cc: Andi Kleen <andi@firstfloor.org>,
paulmck@linux.vnet.ibm.com, ebiederm@xmission.com,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [1/9] Add rcustring ADT for RCU protected strings v2
Date: Mon, 11 Jan 2010 15:26:58 +0100 [thread overview]
Message-ID: <20100111142658.GB28783@one.firstfloor.org> (raw)
In-Reply-To: <36ca99e91001110412k17326723q5e52f6d3cc3f5e6c@mail.gmail.com>
On Mon, Jan 11, 2010 at 01:12:41PM +0100, Bert Wesarg wrote:
> On Tue, Jan 5, 2010 at 03:15, Andi Kleen <andi@firstfloor.org> wrote:
> > Index: linux-2.6.33-rc2-ak/lib/rcustring.c
> > ===================================================================
> > --- /dev/null
> > +++ linux-2.6.33-rc2-ak/lib/rcustring.c
>
> [ . . . ]
>
> > +/*
> > + * Get a local private copy of a RCU protected string.
> > + * Mostly useful to get a string that is stable while sleeping.
> > + * Caller must free returned string.
> > + */
> > +char *access_rcu_string(char **str, int size, gfp_t gfp)
> > +{
> > + char *copy = kmalloc(size, gfp);
> No check of return value from kmalloc()?
>
> > + if (!str)
> > + return NULL;
The !str should be !copy right. I fixed that in my version.
Thanks for catching.
-Andi
next prev parent reply other threads:[~2010-01-11 14:27 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-05 2:15 [PATCH] [0/9] SYSCTL: Use RCU to avoid races with string sysctls v2 Andi Kleen
2010-01-05 2:15 ` [PATCH] [1/9] Add rcustring ADT for RCU protected strings v2 Andi Kleen
2010-01-05 5:32 ` Paul E. McKenney
2010-01-05 10:47 ` Andi Kleen
2010-01-05 14:11 ` Paul E. McKenney
2010-01-05 14:19 ` Andi Kleen
2010-01-08 23:50 ` Andrew Morton
2010-01-11 12:12 ` Bert Wesarg
2010-01-11 14:26 ` Andi Kleen [this message]
2010-01-05 2:15 ` [PATCH] [2/9] Add a kernel_address() that works for data too Andi Kleen
2010-01-05 8:44 ` Russell King
2010-01-05 8:58 ` Sam Ravnborg
2010-01-05 19:04 ` Russell King
2010-01-05 19:15 ` Andi Kleen
2010-01-08 23:51 ` Andrew Morton
2010-01-05 2:15 ` [PATCH] [3/9] SYSCTL: Add proc_rcu_string to manage sysctls using rcu strings Andi Kleen
2010-01-05 2:15 ` [PATCH] [4/9] SYSCTL: Use RCU strings for core_pattern sysctl Andi Kleen
2010-01-05 6:56 ` Eric W. Biederman
2010-01-05 11:49 ` Andi Kleen
2010-01-05 2:15 ` [PATCH] [5/9] SYSCTL: Add call_usermodehelper_cleanup() Andi Kleen
2010-01-05 2:15 ` [PATCH] [6/9] SYSCTL: Convert modprobe_path to proc_rcu_string() Andi Kleen
2010-01-05 2:15 ` [PATCH] [7/9] SYSCTL: Convert poweroff_command to proc_rcu_string Andi Kleen
2010-01-05 2:15 ` [PATCH] [8/9] SYSCTL: Convert hotplug helper string to proc_rcu_string() Andi Kleen
2010-01-05 2:15 ` [PATCH] [9/9] SYSCTL: Use RCU protected sysctl for ocfs group add helper Andi Kleen
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=20100111142658.GB28783@one.firstfloor.org \
--to=andi@firstfloor.org \
--cc=akpm@linux-foundation.org \
--cc=bert.wesarg@googlemail.com \
--cc=ebiederm@xmission.com \
--cc=linux-kernel@vger.kernel.org \
--cc=paulmck@linux.vnet.ibm.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
all inboxes | Powered by JetHome®