From: Christoph Hellwig <hch@lst.de>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] block new writers on frozen filesystems
Date: Sun, 13 Feb 2005 15:20:27 +0100 [thread overview]
Message-ID: <20050213142027.GA1733@lst.de> (raw)
In-Reply-To: <20050210151427.3fc65d56.akpm@osdl.org>
> > + vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE);
>
> hm, I didn't pay much attention to this stuff. Shouldn't the direct-io
> code be waiting as well? Are all paths which can write to the bdev supposed
> to be blocked? kjournald?
This should block new data writers. New metadata writes need to be
blocked in the individual filesystem, and only when the state is set
to SB_FREEZE_TRANS (a few steps later in freeze_bdev).
Currently only XFS deals with that part.
next prev parent reply other threads:[~2005-02-13 14:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-10 16:13 [PATCH] block new writers on frozen filesystems Christoph Hellwig
2005-02-10 23:14 ` Andrew Morton
2005-02-13 14:20 ` Christoph Hellwig [this message]
2005-02-13 15:05 ` Anton Altaparmakov
2005-02-13 15:24 ` Christoph Hellwig
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