Re: [RFC PATCH v2] fuse: add optional workqueue to periodically invalidate expired dentries

From: Bernd Schubert
Date: Wed Apr 16 2025 - 11:56:04 EST


Hi Luis

On 4/15/25 15:38, Luis Henriques wrote:
This patch adds a new mount option that will allow to set a workqueue to
periodically invalidate expired dentries. When this parameter is set,
every new (or revalidated) dentry will be added to a tree, sorted by
expiry time. The workqueue period is set when a filesystem is mounted
using this new parameter, and can not be less than 5 seconds.


I will look into it tomorrow. I wonder a bit if we can extend it to provide an LRU and to limit max cached dentries without a timeout. Need to think about details.


Thanks,
Bernd