linux-kernel - Re: [PATCH] mm/mmu_notifiers: Use hlist_for_each_entry

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Message-ID: <20260205014650.68624-1-sj@kernel.org>
Date: Wed,  4 Feb 2026 17:46:49 -0800
From: SeongJae Park <sj@...nel.org>
To: lirongqing <lirongqing@...du.com>
Cc: SeongJae Park <sj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Hildenbrand <david@...nel.org>,
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
	"Liam R . Howlett" <Liam.Howlett@...cle.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Mike Rapoport <rppt@...nel.org>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Michal Hocko <mhocko@...e.com>,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/mmu_notifiers: Use hlist_for_each_entry_srcu() for SRCU list traversal

On Wed, 4 Feb 2026 03:09:37 -0500 lirongqing <lirongqing@...du.com> wrote:

> From: Li RongQing <lirongqing@...du.com>
> 
> The mmu_notifier_subscriptions list is protected by SRCU. While the
> current code uses hlist_for_each_entry_rcu() with an explicit SRCU
> lockdep check, it is more appropriate to use the dedicated
> hlist_for_each_entry_srcu() macro.
> 
> This change aligns the code with the preferred kernel API for SRCU-protected
> lists, improving code clarity and ensuring that the synchronization
> method is explicitly documented by the iterator name itself.
> 
> Signed-off-by: Li RongQing <lirongqing@...du.com>

Acked-by: SeongJae Park <sj@...nel.org>


Thanks,
SJ

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