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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <jbeulich@suse.com>
Cc: George Dunlap <George.Dunlap@eu.citrix.com>,
	Ian Jackson <iwj@xenproject.org>,
	Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wl@xen.org>,
	Julien Grall <julien@xen.org>,
	Dario Faggioli <dfaggioli@suse.com>,
	Xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [PATCH 3/6] xen/credit2: Remove tail padding from TRC_CSCHED2_* records
Date: Fri, 17 Sep 2021 14:28:58 +0100	[thread overview]
Message-ID: <ffb38e63-e18b-c143-9b30-46d6cb2cc8a9@citrix.com> (raw)
In-Reply-To: <66d0cd95-a9db-05ca-3a4c-b728a2f5cdbd@suse.com>

On 17/09/2021 14:10, Jan Beulich wrote:
> On 17.09.2021 10:45, Andrew Cooper wrote:
>> @@ -1336,13 +1338,16 @@ update_runq_load(const struct scheduler *ops,
>>      {
>>          struct {
>>              uint64_t rq_avgload, b_avgload;
>> -            unsigned rq_load:16, rq_id:8, shift:8;
>> -        } d;
>> -        d.rq_id = rqd->id;
>> -        d.rq_load = rqd->load;
>> -        d.rq_avgload = rqd->avgload;
>> -        d.b_avgload = rqd->b_avgload;
>> -        d.shift = P;
>> +            uint16_t rq_load; uint8_t rq_id, shift;
> Split into two lines? Preferably with this adjustment
> Reviewed-by: Jan Beulich <jbeulich@suse.com>

Thanks.

> I'd like to note that the remaining uses of "unsigned int" or plain
> "int" in some of the instances you don't touch assume
> sizeof(int) == 32, while generally we assume only sizeof(int) >= 32.
> This is one of the cases where fixed width types are imo mandatory
> to use.

See patch 5.  There was far too much cleanup to merge with this patch.

~Andrew


  reply	other threads:[~2021-09-17 13:29 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-17  8:45 [PATCH 0/6] xen/trace: Fix leakage of uninitialised stack into the tracebuffer Andrew Cooper
2021-09-17  8:45 ` [PATCH 1/6] xen/trace: Don't over-read trace objects Andrew Cooper
2021-09-17 12:58   ` Jan Beulich
2021-09-17 13:26     ` Andrew Cooper
2021-09-20  8:00       ` Jan Beulich
2021-09-20 10:24         ` Andrew Cooper
2021-09-17  8:45 ` [PATCH 2/6] xen/memory: Remove tail padding from TRC_MEM_* records Andrew Cooper
2021-09-17 13:04   ` Jan Beulich
2021-09-17  8:45 ` [PATCH 3/6] xen/credit2: Remove tail padding from TRC_CSCHED2_* records Andrew Cooper
2021-09-17 13:10   ` Jan Beulich
2021-09-17 13:28     ` Andrew Cooper [this message]
2021-09-17  8:45 ` [PATCH 4/6] x86/trace: Reduce stack usage from HVMTRACE_ND() Andrew Cooper
2021-09-20  9:05   ` Jan Beulich
2021-09-20 11:02     ` Andrew Cooper
2021-09-20 13:00       ` Jan Beulich
2021-09-17  8:45 ` [PATCH 5/6] xen/credit2: Clean up trace handling Andrew Cooper
2021-09-20  9:11   ` Jan Beulich
2021-09-17  8:45 ` [PATCH 6/6] xen/trace: Minor code cleanup Andrew Cooper
2021-09-20  9:15   ` Jan Beulich

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