linux-kernel - Re: [PATCH v2] selftest/vm clarify error statement in gup

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Message-ID: <bc04ce83-eed8-f35e-9816-bdd9d0ac1470@linuxfoundation.org>
Date:   Wed, 6 Apr 2022 13:38:33 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Matthew Wilcox <willy@...radead.org>,
        Sidhartha Kumar <sidhartha.kumar@...cle.com>
Cc:     shuah@...nel.org, akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v2] selftest/vm clarify error statement in gup_test

On 4/5/22 4:33 PM, Matthew Wilcox wrote:
> On Tue, Apr 05, 2022 at 09:48:09PM +0000, Sidhartha Kumar wrote:
>> -		perror("open");
>> -		exit(1);
>> +		switch (errno) {
>> +		case EACCES:
>> +			if (getuid())
>> +				printf("Please run this test as root\n");
> 
> Shouldn't all these be fprintf(stderr, ...); ?
> 
> 

printf() is consistent with the other messages in this file. Either
works.

thanks,
-- Shuah