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From: Hugh Dickins <hughd@google.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Hugh Dickins <hughd@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	 linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 3/3] mm,thp: fix smaps THPeligible output alignment
Date: Tue, 15 Aug 2023 09:57:59 -0700 (PDT)	[thread overview]
Message-ID: <4eb1e67d-5fd4-af7d-c1b8-87ac0751fcd@google.com> (raw)
In-Reply-To: <9cc6f150-6673-4fe1-a406-e04bc33a49e8@p183>

On Tue, 15 Aug 2023, Alexey Dobriyan wrote:
> On Mon, Aug 14, 2023 at 01:02:08PM -0700, Hugh Dickins wrote:
> > Swap:                  0 kB
> > SwapPss:               0 kB
> > Locked:                0 kB
> > THPeligible:    0
> > ProtectionKey:         0
> 
> > -	seq_printf(m, "THPeligible:    %d\n",
> > +	seq_printf(m, "THPeligible:    %8u\n",
> >  		   hugepage_vma_check(vma, vma->vm_flags, true, false, true));
> 
> Why format string change? It would only slow down printing.

To document the alignment, and to look like the ProtectionKey line below.

> 
> I'd print with
> 
> 	"%u", +hugepage_vma_check()

Sorry, I don't understand.

> 
> or just add whitespace.

My original patch did that, then I thought it better to document the
alignment and save those bytes of kernel.

Hugh


      reply	other threads:[~2023-08-15 16:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-14 19:58 [PATCH 0/3] mm,thp: fix sloppy text output Hugh Dickins
2023-08-14 20:00 ` [PATCH 1/3] mm,thp: no space after colon in Mem-Info fields Hugh Dickins
2023-08-15 17:52   ` David Hildenbrand
2023-08-14 20:01 ` [PATCH 2/3] mm,thp: fix nodeN/meminfo output alignment Hugh Dickins
2023-08-15 17:52   ` David Hildenbrand
2023-08-14 20:02 ` [PATCH 3/3] mm,thp: fix smaps THPeligible " Hugh Dickins
2023-08-15 14:27   ` Alexey Dobriyan
2023-08-15 16:57     ` Hugh Dickins [this message]

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