From: ebiederm@xmission.com (Eric W. Biederman)
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/5] proc: Make the generation of the self symlink table driven.
Date: Fri, 08 Sep 2006 05:04:19 -0600 [thread overview]
Message-ID: <m11wqmmxfw.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0609080906380.22545@yvahk01.tjqt.qr> (Jan Engelhardt's message of "Fri, 8 Sep 2006 09:07:01 +0200 (MEST)")
Jan Engelhardt <jengelh@linux01.gwdg.de> writes:
>>> +static struct pid_entry proc_base_stuff[] = {
>>> + NOD(PROC_TGID_INO, "self", S_IFLNK|S_IRWXUGO,
>>> + &proc_self_inode_operations, NULL, {}),
>>> + {}
>>> +};
>>
>>We could save a bunch of bytes here.
>>
>>> + /* Lookup the directory entry */
>>> + for (p = proc_base_stuff; p->name; p++) {
>>
>>By using ARRAY_SIZE here.
>>
>>> + for (; nr < (ARRAY_SIZE(proc_base_stuff) - 1); filp->f_pos++, nr++) {
>>
>>like that does.
>
> Also works without the () around ARRAY_SIZE(..)-1
Sure. But I don't really trust C precedence (because it is wrong)
and having to remember where it is wrong sucks. Plus in this
case I really am making it clear that ARRAY_SIZE(..)-1 is the concept
I want. If there would any more to the expression that would
be important.
Eric
next prev parent reply other threads:[~2006-09-08 11:05 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-06 16:23 Eric W. Biederman
2006-09-06 16:24 ` [PATCH 2/5] proc: Factor out an instantiate method from every lookup method Eric W. Biederman
2006-09-06 16:27 ` [PATCH 3/5] proc: Remove the hard coded inode numbers Eric W. Biederman
2006-09-06 16:28 ` [PATCH 4/5] proc: Merge proc_tid_attr and proc_tgid_attr Eric W. Biederman
2006-09-06 16:31 ` [PATCH 5/5] proc: Use pid_task instead of open coding it Eric W. Biederman
2006-09-07 17:22 ` [PATCH 3/5] proc: Remove the hard coded inode numbers Andrew Morton
2006-09-07 17:55 ` Eric W. Biederman
2006-09-07 18:06 ` Andrew Morton
2006-09-07 18:37 ` Eric W. Biederman
2006-09-07 17:18 ` [PATCH 2/5] proc: Factor out an instantiate method from every lookup method Andrew Morton
2006-09-07 18:08 ` Eric W. Biederman
2006-09-07 17:15 ` [PATCH 1/5] proc: Make the generation of the self symlink table driven Andrew Morton
2006-09-07 18:04 ` Eric W. Biederman
2006-09-08 7:07 ` Jan Engelhardt
2006-09-08 11:04 ` Eric W. Biederman [this message]
2006-09-08 13:08 ` Jan Engelhardt
2006-09-08 13:27 ` Eric W. Biederman
2006-09-08 16:55 ` Jan Engelhardt
2006-09-09 2:34 ` Eric W. Biederman
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