Re: [PATCH v2] dcache: add fs.dentry-limit sysctl with negative-first reaper

From: Matthew Wilcox

Date: Sat May 16 2026 - 19:09:47 EST


On Sat, May 16, 2026 at 04:52:54PM +0200, Horst Birthelmer wrote:
> There was a discussion at LSFMM about servers with too many cached
> negative dentries.
> That gave me the idea to keep the dentries in general limited
> if the system administrator needs it to.

I feel you should link to the dozens of previous attempts at this kind
of thing to show that you're aware that this has been tried before and
you're doing something meaningfully different.