From: Emily Maier <emily@emilymaier.net>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] fuse: Expose read from directory to userspace
Date: Sun, 24 Apr 2016 00:57:44 -0400 [thread overview]
Message-ID: <20160424045744.GA12800@localhost.localdomain> (raw)
In-Reply-To: <20160422132356.GJ25498@ZenIV.linux.org.uk>
On Fri, Apr 22, 2016 at 02:23:56PM +0100, Al Viro wrote:
> On Fri, Apr 22, 2016 at 08:50:04AM -0400, Emily Maier wrote:
> > The VFS permits filesystems to implement read(2) on directories, but
> > FUSE unconditionally returns -EISDIR for it. Expose this to userspace as
> > FUSE_DIR_READ and continue returning the old behavior if the filesystem
> > doesn't implement it.
>
> What the hell for? read() on directories had been an anachronism since
> early 80s, has nothing resembling a sane semantics, etc.
>
> Why would we want to implement that idiocy?
> --
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To permit getting metadata on a directory by reading from it, similarly
to ceph's "dirstat" option.
prev parent reply other threads:[~2016-04-24 4:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-22 12:50 [PATCH] fuse: Expose read from directory to userspace Emily Maier
2016-04-22 13:23 ` Al Viro
2016-04-24 4:57 ` Emily Maier [this message]
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