From: Andrew Morton <akpm@linux-foundation.org>
To: Hugh Dickins <hughd@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
linux-kernel@vger.kernel.org, Oleg Nesterov <oleg@redhat.com>,
Al Viro <viro@zeniv.linux.org.uk>,
Vasiliy Kulikov <segoon@openwall.com>,
David Rientjes <rientjes@google.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Siddhesh Poyarekar <siddhesh.poyarekar@gmail.com>
Subject: Re: [PATCH 6/6] proc: use IS_ERR_OR_NULL()
Date: Thu, 12 Apr 2012 12:31:47 -0700 [thread overview]
Message-ID: <20120412123147.1ac34ae0.akpm@linux-foundation.org> (raw)
In-Reply-To: <alpine.LSU.2.00.1204121221420.2379@eggly.anvils>
On Thu, 12 Apr 2012 12:26:51 -0700 (PDT)
Hugh Dickins <hughd@google.com> wrote:
> On Thu, 12 Apr 2012, KOSAKI Motohiro wrote:
> > (4/12/12 9:23 AM), Alexey Dobriyan wrote:
> > > On Wed, Apr 11, 2012 at 8:59 AM, Cong Wang<xiyou.wangcong@gmail.com>
> > > wrote:
> > > > - if (mm&& !IS_ERR(mm)) {
> > > > + if (!IS_ERR_OR_NULL(mm)) {
> > >
> > > I personally find original code way more readable.
> >
> > personally, me too. but new one is also acceptable to me.
>
> That now makes 4 votes that it's not an improvement, with no dissent
> (unless akpm's + proc-use-is_err_or_null.patch added to -mm tree
> should be counted as dissent): let's drop this patch.
I think it's OK. IS_ERR_OR_NULL encapsulates the concept "something
went wrong".
Not that I'm particularly passionate about it.
prev parent reply other threads:[~2012-04-12 19:31 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-11 5:59 [PATCH 1/6 v3] proc: clean up /proc/<pid>/environ handling Cong Wang
2012-04-11 5:59 ` [PATCH 2/6] proc: unify ptrace_may_access locking code Cong Wang
2012-04-11 5:59 ` [PATCH 3/6] proc: remove mm_for_maps() Cong Wang
2012-04-12 0:38 ` Hugh Dickins
2012-04-11 5:59 ` [PATCH 4/6] proc: use mm_access() instead of ptrace_may_access() Cong Wang
2012-04-11 5:59 ` [PATCH 5/6] proc: use task_access_lock() " Cong Wang
2012-04-12 13:22 ` Cong Wang
2012-04-12 15:29 ` Djalal Harouni
2012-04-11 5:59 ` [PATCH 6/6] proc: use IS_ERR_OR_NULL() Cong Wang
2012-04-12 0:41 ` Hugh Dickins
2012-04-12 13:17 ` Cong Wang
2012-04-12 13:23 ` Alexey Dobriyan
2012-04-12 18:46 ` KOSAKI Motohiro
2012-04-12 19:26 ` Hugh Dickins
2012-04-12 19:31 ` Andrew Morton [this message]
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