linux-kernel - Re: [PATCH 1/4] statx: Add a system call to make enhanced file info available

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Message-ID: <20161118212725.GA31101@dastard>
Date:   Sat, 19 Nov 2016 08:27:25 +1100
From:   Dave Chinner <david@...morbit.com>
To:     David Howells <dhowells@...hat.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-api@...r.kernel.org
Subject: Re: [PATCH 1/4] statx: Add a system call to make enhanced file info
 available

On Fri, Nov 18, 2016 at 10:29:04AM +0000, David Howells wrote:
> Dave Chinner <david@...morbit.com> wrote:
> 
> > > (13) FS_IOC_GETFLAGS value.  These could be translated to BSD's st_flags.
> > >      Note that the Linux IOC flags are a mess and filesystems such as Ext4
> > >      define flags that aren't in linux/fs.h, so translation in the kernel
> > >      may be a necessity (or, possibly, we provide the filesystem type too).
> > 
> > And we now also have FS_IOC_FSGETXATTR that extends the flags
> > and information userspace can get from filesystems.
> 
> Btw, can you point me at the manpage that defines the fsxattr struct and its
> flags?

man xfsctl is the original source. However, ....

> Also, ioctl_list(2) should probably include FS_IOC_FS[GS]ETXATTR.

... I thought patches had been sent to Michael to document them at
the VFS ioctl level. maybe I confused it with something else.....

Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com