Re: [RFC] [PATCH 5/7] reiser4: txnmgr: call reiser4_post_write_back_hook() for empty atoms.

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On Sunday 17 August 2014 at 19:59:14, Ivan Shapovalov wrote:	
> On Sunday 17 August 2014 at 19:43:24, Ivan Shapovalov wrote:	
> > The atoms generated by reiser4_trim_fs(), despite being empty (zero
> > capture_count), still have non-empty delete sets which have to be
> > processed.
> > 
> > Signed-off-by: Ivan Shapovalov <intelfx100@xxxxxxxxx>
> > ---
> >  fs/reiser4/txnmgr.c | 7 ++++++-
> >  1 file changed, 6 insertions(+), 1 deletion(-)
> > 
> > diff --git a/fs/reiser4/txnmgr.c b/fs/reiser4/txnmgr.c
> > index 2862940..3f44c9c 100644
> > --- a/fs/reiser4/txnmgr.c
> > +++ b/fs/reiser4/txnmgr.c
> > @@ -1064,8 +1064,13 @@ static int commit_current_atom(long *nr_submitted, txn_atom ** atom)
> >  		return RETERR(-E_REPEAT);
> >  	}
> >  
> > -	if ((*atom)->capture_count == 0)
> > +	if ((*atom)->capture_count == 0) {
> > +		/* Process the atom's delete set.
> > +		 * Even if the atom has no captured nodes, the delete set may
> > +		 * still be non-empty (see e. g. reiser4_trim_fs()). */
> > +		reiser4_post_writeback_hook();
> 
> Oops, a typo. Will resend the series...

Actually, it's not just a typo. reiser4_post_write_back_hook() shall be called
with atom spinlock released. See PATCHv2, and sorry for the noise.

-- 
Ivan Shapovalov / intelfx /

> 
> >  		goto done;
> > +	}
> >  
> >  	/* Up to this point we have been flushing and after flush is called we
> >  	   return -E_REPEAT.  Now we can commit.  We cannot return -E_REPEAT
> > 

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