linux-kernel - Re: [PATCH] orangefs: Axe some dead code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 24 Nov 2016 07:31:11 -0500
From:   Mike Marshall <hubcap@...ibond.com>
To:     Martin Brandenburg <martin@...ibond.com>,
        Mike Marshall <hubcap@...ibond.com>
Cc:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] orangefs: Axe some dead code

This seems like a good and proper patch to me, and simple too.
But like all changes, it needs tested. While I was testing it, I
discovered a regression in the associated userspace code. I
"bisected" (we use SVN for the userspace part of Orangefs)
down to the commit that caused the regression, and some
of the userspace folks are going to fix it.

I don't think I should ask Linus to pull this patch until I can
test it. Since we're about to go into rc7, it might not go in
until the next go around...

-Mike

On Tue, Nov 22, 2016 at 10:49 AM, Martin Brandenburg
<martin@...ibond.com> wrote:
> On Mon, 21 Nov 2016, Christophe JAILLET wrote:
>
>> The "perf_counter_reset" case has already been handled above.
>> Moreover "ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE" is not a really
>> consistent.
>> It is likely that this (dead) code is a cut and paste left over.
>
> That's exactly what this is.
>
> Reviewed-by: Martin Brandenburg <martin@...ibond.com>
>
>>
>> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
>> ---
>>  fs/orangefs/orangefs-sysfs.c | 9 ---------
>>  1 file changed, 9 deletions(-)
>>
>> diff --git a/fs/orangefs/orangefs-sysfs.c b/fs/orangefs/orangefs-sysfs.c
>> index a799546a67f7..084954448f18 100644
>> --- a/fs/orangefs/orangefs-sysfs.c
>> +++ b/fs/orangefs/orangefs-sysfs.c
>> @@ -609,15 +609,6 @@ static ssize_t sysfs_service_op_store(struct kobject *kobj,
>>                       new_op->upcall.req.param.u.value32[0] = val1;
>>                       new_op->upcall.req.param.u.value32[1] = val2;
>>                       goto value_set;
>> -             } else if (!strcmp(attr->attr.name,
>> -                                "perf_counter_reset")) {
>> -                     if ((val > 0)) {
>> -                             new_op->upcall.req.param.op =
>> -                             ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
>> -                     } else {
>> -                             rc = 0;
>> -                             goto out;
>> -                     }
>>               }
>>
>>       } else if (!strcmp(kobj->name, ACACHE_KOBJ_ID)) {
>> --
>> 2.9.3
>>
>>