Re: [PATCH 0/5] Support case insensitive filesystems in NFSv4

[Trond Myklebust <trondmy@hammerspace.com>]

On Mon, 2022-01-03 at 15:08 -0500, J. Bruce Fields wrote:
> On Fri, Dec 17, 2021 at 03:36:53PM -0500, trondmy@kernel.org wrote:
> > From: Trond Myklebust <trond.myklebust@hammerspace.com>
> > 
> > Add support for detecting an export of a case insensitive
> > filesystem in
> > NFSv4. If that is the case, then we need to adjust the dentry
> > caching
> > and invalidation rules to ensure that we don't inadvertently end up
> > caching other case folded aliases after an operation that results
> > in a
> > directory entry name change.
> 
> What server and configuration are you testing this against?
> 
> 

Ours. Why?

> --b.
> 
> > 
> > Trond Myklebust (5):
> >   NFSv4: Add some support for case insensitive filesystems
> >   NFSv4: Just don't cache negative dentries on case insensitive
> > servers
> >   NFS: Invalidate negative dentries on all case insensitive
> > directory
> >     changes
> >   NFS: Add a helper to remove case-insensitive aliases
> >   NFS: Fix the verifier for case sensitive filesystem in
> >     nfs_atomic_open()
> > 
> >  fs/nfs/dir.c              | 41 +++++++++++++++++++++++++++++++++--
> > ----
> >  fs/nfs/internal.h         |  1 +
> >  fs/nfs/nfs4proc.c         | 13 +++++++++++--
> >  fs/nfs/nfs4xdr.c          | 40
> > ++++++++++++++++++++++++++++++++++++++
> >  include/linux/nfs_fs_sb.h |  2 ++
> >  include/linux/nfs_xdr.h   |  2 ++
> >  6 files changed, 91 insertions(+), 8 deletions(-)
> > 
> > -- 
> > 2.33.1

-- 
Trond Myklebust
Linux NFS client maintainer, Hammerspace
trond.myklebust@hammerspace.com