From: David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Joel Becker <Joel.Becker-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
Ulrich Drepper <drepper-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org,
smfrench-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
mcao-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org,
aneesh.kumar-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org,
linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
samba-technical-w/Ol4Ecudpl8XjKLYN78aQ@public.gmane.org,
sjayaraman-l3A5Bk7waGM@public.gmane.org,
linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 3/3] Add a pair of system calls to make extended file stats available
Date: Wed, 30 Jun 2010 00:29:52 +0100 [thread overview]
Message-ID: <32322.1277854192@redhat.com> (raw)
In-Reply-To: <20100629224844.GF4150-0Ol/1UON5C7fiIqoQl7HmA@public.gmane.org>
Joel Becker <Joel.Becker-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org> wrote:
> The less variable length stuff the better, I think. At least,
> for the stuff stat(2) already returns, you should have a fixed-size
> structure. Even if I only pass the GIVE_ME_UIDS flag, I don't want to
> have to deal with the variable size stuff until I've actually asked for
> esoteric things. I'll know that the non-UIDS fields are garbage by the
> fact that I didn't ask for them.
I was thinking of the fixed length xstat struct plus appendable extensions to
be defined later.
I could live with each defined extension being of a fixed length, so for
example, you set bit 20, and it adds, say, a 16-byte volume ID in the
appropriate order, padded out appropriately for the filesystem.
David
next prev parent reply other threads:[~2010-06-29 23:29 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-29 20:02 [PATCH 0/3] Extended file stat functions David Howells
2010-06-29 20:03 ` [PATCH 1/3] Mark arguments to certain syscalls as being const David Howells
2010-06-29 20:03 ` [PATCH 2/3] AFS: Use i_generation not i_version for the vnode uniquifier David Howells
[not found] ` <20100629200259.23196.81509.stgit-S6HVgzuS8uM4Awkfq6JHfwNdhmdF6hFW@public.gmane.org>
2010-06-29 20:03 ` [PATCH 3/3] Add a pair of system calls to make extended file stats available David Howells
2010-06-29 22:36 ` David Howells
[not found] ` <26026.1277851016-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-06-29 22:48 ` Joel Becker
2010-06-29 22:48 ` Sage Weil
[not found] ` <20100629224844.GF4150-0Ol/1UON5C7fiIqoQl7HmA@public.gmane.org>
2010-06-29 23:29 ` David Howells [this message]
[not found] ` <32322.1277854192-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-07-01 1:12 ` Joel Becker
[not found] ` <20100629200315.23196.68742.stgit-S6HVgzuS8uM4Awkfq6JHfwNdhmdF6hFW@public.gmane.org>
2010-06-29 22:13 ` Ulrich Drepper
[not found] ` <AANLkTimSU_pCXW5zR8__Q3-fzgxwEUX8rPqLeZtPD_hX-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-06-29 22:33 ` Steve French
2010-06-30 8:20 ` Arnd Bergmann
2010-06-30 8:59 ` David Howells
2010-06-29 20:28 ` [PATCH 0/3] Extended file stat functions Trond Myklebust
2010-06-29 20:23 ` Steve French
[not found] ` <AANLkTimIh9ZAasPnN5xxGxbupwkct7UihHcMe26r-MD7-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-06-29 20:41 ` David Howells
2010-06-29 20:50 ` David Howells
2010-06-29 21:07 ` Bernd Schubert
[not found] ` <201006292307.42440.bernd.schubert-97jfqw80gc6171pxa8y+qA@public.gmane.org>
2010-06-29 21:11 ` David Howells
[not found] ` <24517.1277845879-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-06-29 21:24 ` Bernd Schubert
2010-06-29 21:28 ` David Howells
2010-06-29 21:53 ` Bernd Schubert
2010-06-29 22:59 ` Maciej W. Rozycki
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