linux-kernel - Re: [PATCH 1/3] VFS "stat light" out of fstatat, and fine grained flags

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Message-ID: <49DBE0F9.7000207@garzik.org>
Date:	Tue, 07 Apr 2009 19:25:45 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Oleg Drokin <green@...uxhacker.ru>
CC:	linux-fsdevel@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] VFS "stat light" out of fstatat, and fine grained
 flags

Oleg Drokin wrote:
> Hello!
> 
>    This is reworked Mark Fasheh's patch + my earlier patch.
>    It allows one to specify which specific struct stat fields are needed
>    out of the fstatat call, and also a request to obtain most uptodate
>    information for inode (for NFS mostly).
> 
>    Also it adds AT_STAT_SELF flag to mean that the stat should be executed not
>    on a path, but on the passed filedecriptor itself.
> 
>    A first real kernel user for this added in loop block driver that does
>    not care about size or anything else besides rdev and inode number.
> 
>    I see various architectures replicate bits of vfs_*stat* in some compat
>    code, I am not sure if we need to update those as well or not.
> 
>    This patch does away with all the extra syscalls.


linux-kernel should be included in the discussion of this syscall.

	Jeff


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