Re: [PATCH 004/119] xfs: enable buffer deadlock postmortem diagnosis via ftrace

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On Fri, Jun 17, 2016 at 04:34:23AM -0700, Christoph Hellwig wrote:
> > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
> > index efa2a73..2333db7 100644
> > --- a/fs/xfs/xfs_buf.c
> > +++ b/fs/xfs/xfs_buf.c
> > @@ -947,7 +947,8 @@ xfs_buf_trylock(
> >  	if (locked)
> >  		XB_SET_OWNER(bp);
> >  
> > -	trace_xfs_buf_trylock(bp, _RET_IP_);
> > +	locked ? trace_xfs_buf_trylock(bp, _RET_IP_) :
> > +		 trace_xfs_buf_trylock_fail(bp, _RET_IP_);
> >  	return locked;
> 
> I think this should be something like:
> 
> 	if (locked) {
> 		XB_SET_OWNER(bp);
> 		trace_xfs_buf_trylock(bp, _RET_IP_);
> 	} else {
> 		trace_xfs_buf_trylock_fail(bp, _RET_IP_);
> 	}
> 
> otherwise this looks good and can go in without the rest of the series.

I'll fix that up on commit.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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