From: Arnd Bergmann <arnd@arndb.de>
To: Sage Weil <sage@newdream.net>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] vfs: introduce FS_IOC_SYNCFS to sync a single super
Date: Mon, 9 Aug 2010 20:55:07 +0200 [thread overview]
Message-ID: <201008092055.07248.arnd@arndb.de> (raw)
In-Reply-To: <Pine.LNX.4.64.1008090711040.17515@cobra.newdream.net>
On Monday 09 August 2010, Sage Weil wrote:
> Currently the only way to sync a single super_block (and not all of them
> via sync(2)) is via the BLKFLSBUF ioctl on the block device. That also
> invalidates the bdev mapping, which isn't usually desireable, and it
> doesn't work for non-block file systems. The ability to sync a single
> mount can be useful for both applications and administrators (e.g., when
> other mounts on the system are hung).
You need to add this to the compat_ioctl handling as well, otherwise
it won't work when you run a 32 bit process in a 64 bit kernel.
Adding it to the ioctl_pointer[] array is probably the easiest way.
Arnd
next prev parent reply other threads:[~2010-08-09 18:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-09 14:33 [PATCH] vfs: introduce FS_IOC_SYNCFS to sync a single super Sage Weil
2010-08-09 18:55 ` Arnd Bergmann [this message]
2010-11-27 22:57 ` Jonathan Nieder
2010-08-27 0:01 ` Andrew Morton
2010-09-08 21:44 ` Sage Weil
2010-11-27 22:32 ` Jonathan Nieder
2010-11-28 5:04 ` Jonathan Nieder
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