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From: Chao Yu <chao@kernel.org>
To: Jaegeuk Kim <jaegeuk@kernel.org>,
	linux-kernel@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net
Cc: chao@kernel.org
Subject: Re: [f2fs-dev] [PATCH 2/2 v2] f2fs: add a sysfs entry to request donate file-backed pages
Date: Mon, 10 Feb 2025 17:59:28 +0800	[thread overview]
Message-ID: <61e5cacc-907d-4b86-a26a-63a31cdadd61@kernel.org> (raw)
In-Reply-To: <Z6Y0w1iALudX9GA7@google.com>

On 2/8/25 00:28, Jaegeuk Kim via Linux-f2fs-devel wrote:
> 1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
> 2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
> 3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
> 4. echo 1024 > /sys/fs/f2fs/tuning/reclaim_caches_kb
> 
> This gives a way to reclaim file-backed pages by iterating all f2fs mounts until
> reclaiming 1MB page cache ranges, registered by #1, #2, and #3.
> 
> 5. cat /sys/fs/f2fs/tuning/reclaim_caches_kb
> -> gives total number of registered file ranges.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,

  reply	other threads:[~2025-02-10  9:59 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-31 22:27 [PATCH 0/2 v8] add ioctl/sysfs to " Jaegeuk Kim
2025-01-31 22:27 ` [PATCH 1/2] f2fs: register inodes which is able to donate pages Jaegeuk Kim
2025-01-31 22:27 ` [PATCH 2/2] f2fs: add a sysfs entry to request donate file-backed pages Jaegeuk Kim
2025-02-06  2:23   ` [f2fs-dev] " Chao Yu
2025-02-06 18:33     ` Jaegeuk Kim
2025-02-07 16:28   ` [PATCH 2/2 v2] " Jaegeuk Kim
2025-02-10  9:59     ` Chao Yu [this message]
2025-02-04  5:49 ` [PATCH 0/2 v8] add ioctl/sysfs to " Christoph Hellwig
2025-02-04 16:26   ` Jaegeuk Kim

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