linux-kernel - Re: [PATCH 01/20] mm: Add msharefs filesystem

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Message-ID: <Z5VTXhszpk3_zfV1@casper.infradead.org>
Date: Sat, 25 Jan 2025 21:10:54 +0000
From: Matthew Wilcox <willy@...radead.org>
To: Anthony Yznaga <anthony.yznaga@...cle.com>
Cc: Randy Dunlap <rdunlap@...radead.org>, akpm@...ux-foundation.org,
	markhemm@...glemail.com, viro@...iv.linux.org.uk, david@...hat.com,
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Subject: Re: [PATCH 01/20] mm: Add msharefs filesystem

On Sat, Jan 25, 2025 at 12:05:47PM -0800, Anthony Yznaga wrote:
> 
> On 1/24/25 7:13 PM, Randy Dunlap wrote:
> > Just nits:
> > 
> > 
> > On 1/24/25 3:54 PM, Anthony Yznaga wrote:
> > > diff --git a/mm/Kconfig b/mm/Kconfig
> > > index 1b501db06417..ba3dbe31f86a 100644
> > > --- a/mm/Kconfig
> > > +++ b/mm/Kconfig
> > > @@ -1358,6 +1358,15 @@ config PT_RECLAIM
> > >   	  Note: now only empty user PTE page table pages will be reclaimed.
> > > +config MSHARE
> > > +	bool "Mshare"
> > > +	depends on MMU
> > > +	help
> > > +	  Enable msharefs: A ram-based filesystem that allows multiple
> > 	                     RAM-based

But it's not a ram-based filesystem.  It's a pseudo-filesystem like
procfs.  It doesn't have any memory of its own.