linux-kernel - Re: [PATCH 0/2 v9] reclaim file-backed pages given POSIX_FADV

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Message-ID: <Z7REHrJ3ImdrF476@infradead.org>
Date: Tue, 18 Feb 2025 00:26:06 -0800
From: Christoph Hellwig <hch@...radead.org>
To: Jaegeuk Kim <jaegeuk@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
	linux-api@...r.kernel.org
Subject: Re: [PATCH 0/2 v9] reclaim file-backed pages given POSIX_FADV_NOREUSE

This still has a file system sysfs HACK, you're still not Ccing the
right list, etc.

Can you pleae at least try to get it right?

On Wed, Feb 12, 2025 at 02:31:55AM +0000, Jaegeuk Kim wrote:
> This patch series does not add new API, but implements POSIX_FADV_NOREUSE where
> it keeps the page ranges in the f2fs superblock and add a way for users to
> reclaim the pages manually.
> 
> Change log from v8:
>  - remove new APIs, but use fadvise(POSIX_FADV_NOREUSE)
> 
> Jaegeuk Kim (2):
>   f2fs: keep POSIX_FADV_NOREUSE ranges
>   f2fs: add a sysfs entry to reclaim POSIX_FADV_NOREUSE pages
> 
>  Documentation/ABI/testing/sysfs-fs-f2fs |  7 ++
>  fs/f2fs/debug.c                         |  3 +
>  fs/f2fs/f2fs.h                          | 14 +++-
>  fs/f2fs/file.c                          | 60 +++++++++++++++--
>  fs/f2fs/inode.c                         | 14 ++++
>  fs/f2fs/shrinker.c                      | 90 +++++++++++++++++++++++++
>  fs/f2fs/super.c                         |  1 +
>  fs/f2fs/sysfs.c                         | 63 +++++++++++++++++
>  8 files changed, 246 insertions(+), 6 deletions(-)
> 
> -- 
> 2.48.1.601.g30ceb7b040-goog
> 
> 
---end quoted text---