Re: [PATCH 1/2] Btrfs: fix a deadlock in aborting transaction due to ENOSPC

[Liu Bo <bo.li.liu@oracle.com>]

On Fri, Nov 16, 2012 at 03:19:49PM +0100, David Sterba wrote:
> On Mon, Nov 05, 2012 at 08:42:08PM +0800, Liu Bo wrote:
> > When committing a transaction, we may bail out of running delayed refs
> > due to ENOSPC, and then abort the current transaction to flip into readonly.
> > 
> > But we'll hit a deadlock on ref head's lock since we forget to release
> > its lock and other cleanup stuff.
> 
> Miao sent a patch for this on Tue, 08 May 2012
> 
> http://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg16361.html
> 
> and it does more things than just the unlock, I can't tell which one of
> the patches is the right one, only letting you know.
> 

Thanks for pointing that, David.  Yes, that patch will work.

Miao, can you send it here again?
[PATCH] Btrfs: fix deadlock when the process of delayed refs fails

thanks,
liubo


> david
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