Re: [PATCH 00/11] md: avoid counter operation conflicts

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: tada keisuke <keisuke1.tada@xxxxxxxxxx>, "song@xxxxxxxxxx" <song@xxxxxxxxxx>
Subject: Re: [PATCH 00/11] md: avoid counter operation conflicts
From: Yu Kuai <yukuai1@xxxxxxxxxxxxxxx>
Date: Tue, 26 Mar 2024 22:01:45 +0800
Cc: "linux-raid@xxxxxxxxxxxxxxx" <linux-raid@xxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "yukuai (C)" <yukuai3@xxxxxxxxxx>
In-reply-to: <a022f547c43e40e2b9f0aebb2bd0bfa8@kioxia.com>
References: <a022f547c43e40e2b9f0aebb2bd0bfa8@kioxia.com>
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0

Hi,

在 2024/03/26 18:29, tada keisuke 写道:

Currently, active_aligned_reads and nr_pending used as counters are atomic types.
Therefore, when inc/dec in a multi-core results in conflicts.


I don't uderstand what's the problem here, what's wrong with atomic
types in a multi-core system?

Thanks,
Kuai

Follow-Ups:
- Re: [PATCH 00/11] md: avoid counter operation conflicts
  - From: tada keisuke

References:
- [PATCH 00/11] md: avoid counter operation conflicts
  - From: tada keisuke

Prev by Date: [PATCH 3/3] mdadm: Add README.md
Next by Date: Re: [PATCHv3] md: Replace md_thread's wait queue with the swait variant
Previous by thread: [PATCH 00/11] md: avoid counter operation conflicts
Next by thread: Re: [PATCH 00/11] md: avoid counter operation conflicts
Index(es):
- Date
- Thread

[Index of Archives] [Linux RAID Wiki] [ATA RAID] [Linux SCSI Target Infrastructure] [Linux Block] [Linux IDE] [Linux SCSI] [Linux Hams] [Device Mapper] [Device Mapper Cryptographics] [Kernel] [Linux Admin] [Linux Net] [GFS] [RPM] [git] [Yosemite Forum]

Powered by Linux