linux-kernel - Re: [PATCH v2 0/2] allow overlayfs to do RCU lookups

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Message-ID: <YR0YiSP3DliPCPWF@zeniv-ca.linux.org.uk>
Date:   Wed, 18 Aug 2021 14:26:17 +0000
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Miklos Szeredi <mszeredi@...hat.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-unionfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Andreas Gruenbacher <agruenba@...hat.com>
Subject: Re: [PATCH v2 0/2] allow overlayfs to do RCU lookups

On Wed, Aug 18, 2021 at 03:33:58PM +0200, Miklos Szeredi wrote:
> I'd really like to fix this in some form, but not getting any response
> [1][2][3].
> 
> Al, Linus, can you please comment?
> 
> I'm happy to take this through the overlayfs tree, just need an ACK for the
> VFS API change.

Looks reasonable enough; I'm not too happy about yet another place LOOKUP_...
details get tangled into, though.  Do we want it to be more than just a
bool rcu?