From mboxrd@z Thu Jan  1 00:00:00 1970
From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Subject: Re: [PATCH v3 2/6] xen/PMU: Sysfs interface for setting
	Xen PMU mode
Date: Mon, 07 Jul 2014 10:04:06 -0400
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To: David Vrabel <david.vrabel@citrix.com>, konrad.wilk@oracle.com
Cc: andrew.cooper3@citrix.com, kevin.tian@intel.com, dietmar.hahn@ts.fujitsu.com, jbeulich@suse.com, xen-devel@lists.xen.org
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On 07/04/2014 06:27 AM, David Vrabel wrote:
> On 03/07/14 20:14, Boris Ostrovsky wrote:
>> Set Xen's PMU mode via /sys/hypervisor/pmu/pmu_mode. Add XENPMU hypercall.
>>
> [...]
>> +static ssize_t pmu_mode_store(struct hyp_sysfs_attr *attr,
>> +			      const char *buffer, size_t len)
>> +{
>> +	int ret;
>> +	struct xen_pmu_params xp;
>> +	int i;
>> +
>> +	for (i = 0; i < ARRAY_SIZE(pmu_modes); i++) {
>> +		if (strncmp(buffer, pmu_modes[i].name,
>> +			    strlen(pmu_modes[i].name)) == 0) {
>> +			xp.val = pmu_modes[i].mode;
>> +			break;
>> +		}
>> +	}
> This looks like it would accept "office" as "off" (etc) which I don't
> think it is what we want.  I assume the intention is to allow either
> "off\n" or "off"?

Yes, I should make this check more precise.

-boris