From: Qi Zheng <zhengqi.arch@bytedance.com>
To: Vlastimil Babka <vbabka@suse.cz>,
akpm@linux-foundation.org, tkhai@ya.ru, hannes@cmpxchg.org,
shakeelb@google.com, mhocko@kernel.org, roman.gushchin@linux.dev,
muchun.song@linux.dev, david@redhat.com, shy828301@gmail.com,
rppt@kernel.org
Cc: sultan@kerneltoast.com, dave@stgolabs.net,
penguin-kernel@I-love.SAKURA.ne.jp, paulmck@kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 5/8] mm: shrinkers: make count and scan in shrinker debugfs lockless
Date: Thu, 9 Mar 2023 18:14:27 +0800 [thread overview]
Message-ID: <dcbf7e13-c4c6-4e66-92f1-103d111ec611@bytedance.com> (raw)
In-Reply-To: <96f34c88-ca9a-1c3c-e02a-7c5cd1a269e4@suse.cz>
On 2023/3/9 17:39, Vlastimil Babka wrote:
> On 3/7/23 07:56, Qi Zheng wrote:
>> Like global and memcg slab shrink, also use SRCU to
>> make count and scan operations in memory shrinker
>> debugfs lockless.
>>
>> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
>> ---
>> mm/shrinker_debug.c | 24 +++++++-----------------
>> 1 file changed, 7 insertions(+), 17 deletions(-)
>>
>> diff --git a/mm/shrinker_debug.c b/mm/shrinker_debug.c
>> index 39c3491e28a3..6aa7a7ec69da 100644
>> --- a/mm/shrinker_debug.c
>> +++ b/mm/shrinker_debug.c
>
> Forgot to mention that this file should now likely also #include <linux/srcu.h>
Got it. Will do.
Thanks,
Qi
>
>> @@ -9,6 +9,7 @@
>> /* defined in vmscan.c */
>> extern struct rw_semaphore shrinker_rwsem;
>> extern struct list_head shrinker_list;
>> +extern struct srcu_struct shrinker_srcu;
>
next prev parent reply other threads:[~2023-03-09 10:14 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-07 6:55 [PATCH v4 0/8] make slab shrink lockless Qi Zheng
2023-03-07 6:55 ` [PATCH v4 1/8] mm: vmscan: add a map_nr_max field to shrinker_info Qi Zheng
2023-03-08 14:40 ` Vlastimil Babka
2023-03-08 22:13 ` Kirill Tkhai
2023-03-09 6:33 ` Qi Zheng
2023-03-07 6:55 ` [PATCH v4 2/8] mm: vmscan: make global slab shrink lockless Qi Zheng
2023-03-08 15:02 ` Vlastimil Babka
2023-03-08 22:18 ` Kirill Tkhai
2023-03-07 6:56 ` [PATCH v4 3/8] mm: vmscan: make memcg " Qi Zheng
2023-03-08 22:23 ` Kirill Tkhai
2023-03-08 22:46 ` Vlastimil Babka
2023-03-09 6:47 ` Qi Zheng
2023-03-07 6:56 ` [PATCH v4 4/8] mm: vmscan: add shrinker_srcu_generation Qi Zheng
2023-03-09 9:23 ` Vlastimil Babka
2023-03-09 10:12 ` Qi Zheng
2023-03-07 6:56 ` [PATCH v4 5/8] mm: shrinkers: make count and scan in shrinker debugfs lockless Qi Zheng
2023-03-09 9:36 ` Vlastimil Babka
2023-03-09 9:39 ` Vlastimil Babka
2023-03-09 10:14 ` Qi Zheng [this message]
2023-03-09 19:30 ` Kirill Tkhai
2023-03-07 6:56 ` [PATCH v4 6/8] mm: vmscan: hold write lock to reparent shrinker nr_deferred Qi Zheng
2023-03-09 9:36 ` Vlastimil Babka
2023-03-07 6:56 ` [PATCH v4 7/8] mm: vmscan: remove shrinker_rwsem from synchronize_shrinkers() Qi Zheng
2023-03-08 22:39 ` Kirill Tkhai
2023-03-09 7:06 ` Qi Zheng
2023-03-09 8:11 ` Christian König
2023-03-09 8:32 ` Qi Zheng
2023-03-09 19:34 ` Kirill Tkhai
2023-03-09 9:40 ` Vlastimil Babka
2023-03-09 19:34 ` Kirill Tkhai
2023-03-07 6:56 ` [PATCH v4 8/8] mm: shrinkers: convert shrinker_rwsem to mutex Qi Zheng
2023-03-09 9:42 ` Vlastimil Babka
2023-03-09 19:49 ` Kirill Tkhai
2023-03-07 22:20 ` [PATCH v4 0/8] make slab shrink lockless Andrew Morton
2023-03-08 11:59 ` Qi Zheng
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