linux-kernel - Re: [WTF] ... is going on with current->fs->{root,mnt} accesses in pohmelfs

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Message-ID: <20100210212933.GA19919@ioremap.net>
Date:	Thu, 11 Feb 2010 00:29:33 +0300
From:	Evgeniy Polyakov <zbr@...emap.net>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [WTF] ... is going on with current->fs->{root,mnt} accesses in pohmelfs

On Wed, Feb 10, 2010 at 09:02:48PM +0000, Al Viro (viro@...IV.linux.org.uk) wrote:
> Which would be... ?  E.g. between writepages() and rename().  What serializes
> your write_inode_create() wrt renames?  IOW, how can the server decide that
> data from writepages() should go to the same object regardless of the
> rename?

rename and some other metadata operations as well as write itself
request remote lock (if not grabbed already), acknowledge forces writeback to old path.

-- 
	Evgeniy Polyakov
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