Re: [PATCH 3/3] Add a pair of system calls to make extended file stats available

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jun 29, 2010 at 11:36:56PM +0100, David Howells wrote:
> Ulrich Drepper <drepper@xxxxxxxxx> wrote:
> > And while you're at it, maybe some spare fields at the end are nice.
> 
> I made it so that the syscall can return variable length data: the main xstat
> struct, plus extra records yet to be defined.  They could even be variable
> length and assembled/disassembled with something like the control message
> macros for recvmsg().

	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.

Joel

-- 

"Time is an illusion, lunchtime doubly so."
        -Douglas Adams

Joel Becker
Consulting Software Developer
Oracle
E-mail: joel.becker@xxxxxxxxxx
Phone: (650) 506-8127
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux