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Date:   Wed, 6 Dec 2017 12:51:08 +1100
From:   Dave Chinner <david@...morbit.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Matthew Wilcox <mawilcox@...rosoft.com>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Jens Axboe <axboe@...nel.dk>,
        Rehas Sachdeva <aquannie@...il.com>, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-nilfs@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-xfs@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 00/73] XArray version 4

On Wed, Dec 06, 2017 at 12:45:49PM +1100, Dave Chinner wrote:
> On Tue, Dec 05, 2017 at 04:40:46PM -0800, Matthew Wilcox wrote:
> > From: Matthew Wilcox <mawilcox@...rosoft.com>
> > 
> > I looked through some notes and decided this was version 4 of the XArray.
> > Last posted two weeks ago, this version includes a *lot* of changes.
> > I'd like to thank Dave Chinner for his feedback, encouragement and
> > distracting ideas for improvement, which I'll get to once this is merged.
> 
> BTW, you need to fix the "To:" line on your patchbombs:
> 
> > To: unlisted-recipients: ;, no To-header on input <@gmail-pop.l.google.com> 
> 
> This bad email address getting quoted to the cc line makes some MTAs
> very unhappy.
> 
> > 
> > Highlights:
> >  - Over 2000 words of documentation in patch 8!  And lots more kernel-doc.
> >  - The page cache is now fully converted to the XArray.
> >  - Many more tests in the test-suite.
> > 
> > This patch set is not for applying.  0day is still reporting problems,
> > and I'd feel bad for eating someone's data.  These patches apply on top
> > of a set of prepatory patches which just aren't interesting.  If you
> > want to see the patches applied to a tree, I suggest pulling my git tree:
> > http://git.infradead.org/users/willy/linux-dax.git/shortlog/refs/heads/xarray-2017-12-04
> > I also left out the idr_preload removals.  They're still in the git tree,
> > but I'm not looking for feedback on them.
> 
> I'll give this a quick burn this afternoon and see what catches fire...

Build warnings/errors:

.....
lib/radix-tree.c:700:13: warning: ¿radix_tree_free_nodes¿ defined but not used [-Wunused-function]
 static void radix_tree_free_nodes(struct radix_tree_node *node)
.....
lib/xarray.c: In function ¿xas_max¿:
lib/xarray.c:291:16: warning: unused variable ¿mask¿
[-Wunused-variable]
  unsigned long mask, max = xas->xa_index;
                  ^~~~
......
fs/dax.c: In function ¿grab_mapping_entry¿:
fs/dax.c:305:2: error: implicit declaration of function ¿xas_set_order¿; did you mean ¿xas_set_err¿?  [-Werror=implicit-function-declaration]
  xas_set_order(&xas, index, size_flag ? PMD_ORDER : 0);
    ^~~~~~~~~~~~~
scripts/Makefile.build:310: recipe for target 'fs/dax.o' failed
make[1]: *** [fs/dax.o] Error 1

-Dave.
-- 
Dave Chinner
david@...morbit.com

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