From: Christoph Hellwig <hch@infradead.org>
To: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>,
linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
Al Viro <viro@zeniv.linux.org.uk>, Jan Kara <jack@suse.cz>,
Christian Brauner <brauner@kernel.org>,
linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org,
linux-man@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 1/2] f2fs: register inodes which is able to donate pages
Date: Thu, 16 Jan 2025 23:56:09 -0800 [thread overview]
Message-ID: <Z4oNGYJrN-XGX87M@infradead.org> (raw)
In-Reply-To: <Z4k_nKT3V1xuhXGc@google.com>
On Thu, Jan 16, 2025 at 05:19:24PM +0000, Jaegeuk Kim wrote:
> > mean a invalidate_inode_pages2_range. Which is a strange use of the
> > word. what are the use cases? Why is this queued up to a thread and
> > not done inline? Why is this in f2fs and not in common code.
>
> The idea is let apps register some file ranges for page donation and admin
> recliam such pages all togehter if they expect to see memory pressure soon.
> We can rely on LRU, but this is more user-given trigger. I'm not sure whether
> there's a need in general, hence, wanted to put it in f2fs first to get more
> concrete use-cases beyond this Android case.
Well, that's certainly not a file system feature. Please build this
as generic infrastucture and send it to the linux-mm list.
parent reply other threads:[~2025-01-17 7:56 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <Z4k_nKT3V1xuhXGc@google.com>]
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