Subj : [$] Dropping the page cache for filesystems
To   : All
From : LWN.net
Date : Tue Jun 11 2024 15:30:05

[$] Dropping the page cache for filesystems

Date:
Tue, 11 Jun 2024 14:28:14 +0000

Description:
VFS maintainer Christian Brauner led a discussion about the possibility of
selectively dropping the contents of the page cache for a filesystem in a
session at the
2024 Linux Storage,
Filesystem, Memory Management, and BPF Summit .  As he described in his topic
proposal , the use case that started him down this path comes from
GNOME, which wants to be able to safely suspend access to an encrypted home
directory.  While it is known to kernel
developers, it is surprising to others that reads from encrypted
filesystems that have been suspended will succeed if the data to be read
still exists in the 
page cache.

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Link to news story:
https://lwn.net/Articles/977486/


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