From: Shakeel Butt <shakeel.butt@linux.dev>
To: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>,
Muchun Song <muchun.song@linux.dev>
Subject: Re: [PATCH v2 4/5] mm: page_counters: initialize usage using ATOMIC_LONG_INIT() macro
Date: Wed, 24 Jul 2024 16:45:18 -0700 [thread overview]
Message-ID: <ovyyzcutvovgur4gnhmzis5xvxi2y2okudqoc2drmxapoix6ux@jyebslweicgx> (raw)
In-Reply-To: <20240724202103.1210065-5-roman.gushchin@linux.dev>
On Wed, Jul 24, 2024 at 08:21:02PM GMT, Roman Gushchin wrote:
> When a page_counter structure is initialized, there is no need to
> use an atomic set operation to initialize usage counters because at
> this point the structure is not visible to anybody else.
> ATOMIC_LONG_INIT() is what should be used in such cases.
>
> Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
next prev parent reply other threads:[~2024-07-24 23:45 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-24 20:20 [PATCH v2 0/5] This patchset reorganizes page_counter structures which helps to make Roman Gushchin
2024-07-24 20:20 ` [PATCH v2 1/5] mm: memcg: don't call propagate_protected_usage() needlessly Roman Gushchin
2024-07-24 20:52 ` Shakeel Butt
2024-07-24 23:13 ` Yosry Ahmed
2024-07-24 23:31 ` Roman Gushchin
2024-07-24 23:35 ` Yosry Ahmed
2024-07-24 20:21 ` [PATCH v2 2/5] mm: page_counters: put page_counter_calculate_protection() under CONFIG_MEMCG Roman Gushchin
2024-07-24 23:05 ` Shakeel Butt
2024-07-24 20:21 ` [PATCH v2 3/5] mm: memcg: merge multiple page_counters into a single structure Roman Gushchin
2024-07-24 23:43 ` Shakeel Butt
2024-07-25 21:42 ` Johannes Weiner
2024-07-25 23:33 ` Roman Gushchin
2024-07-26 23:31 ` Johannes Weiner
2024-07-24 20:21 ` [PATCH v2 4/5] mm: page_counters: initialize usage using ATOMIC_LONG_INIT() macro Roman Gushchin
2024-07-24 23:45 ` Shakeel Butt [this message]
2024-07-24 20:21 ` [PATCH v2 5/5] mm: memcg: convert enum res_type to mem_counter_type Roman Gushchin
2024-07-24 23:48 ` Shakeel Butt
2024-07-24 23:54 ` Roman Gushchin
2024-07-24 20:40 ` [PATCH v2 0/5] This patchset reorganizes page_counter structures which helps to make Roman Gushchin
2024-07-24 22:17 ` Shakeel Butt
2024-07-24 22:30 ` Roman Gushchin
2024-07-25 21:42 ` Andrew Morton
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