linux-kernel - Re: [RFC PATCH 12/16] mm/madvise: batch tlb flushes for process_madvise(MADV_DONTNEED[

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Message-ID: <qloyhszjm4v44lfocb5wjnmmylz4n7co2v6iqbxz335i3ybsru@arcmuuiwahkh>
Date: Thu, 6 Mar 2025 10:36:43 -0800
From: Shakeel Butt <shakeel.butt@...ux.dev>
To: SeongJae Park <sj@...nel.org>
Cc: "Liam R. Howlett" <howlett@...il.com>, 
	Andrew Morton <akpm@...ux-foundation.org>, David Hildenbrand <david@...hat.com>, 
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, Vlastimil Babka <vbabka@...e.cz>, kernel-team@...a.com, 
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [RFC PATCH 12/16] mm/madvise: batch tlb flushes for
 process_madvise(MADV_DONTNEED[_LOCKED])

On Wed, Mar 05, 2025 at 10:16:07AM -0800, SeongJae Park wrote:
> MADV_DONTNEED[_LOCKED] internal logic can be invoked with batched tlb
> flushes.  Update vector_madvise(), which is called for
> process_madvise(), to use that in the way, by passing an mmu_gather
> object that it initializes before starting the internal works, and
> flushing the gathered tlb entries at once after all the internal works
> are done.
> 
> Signed-off-by: SeongJae Park <sj@...nel.org>

Please squash 12, 13 and 14 patches.