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Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it

From Matthew Wilcox <willy@infradead.org>
Newsgroups linux.kernel
Subject Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it
Date 2017-04-06 05:00 +0200
Message-ID <tt5Op-2De-1@gated-at.bofh.it> (permalink)
References (5 earlier) <tszlw-7cC-19@gated-at.bofh.it> <tszvc-7i4-15@gated-at.bofh.it> <tsA7U-7Nb-27@gated-at.bofh.it> <tsZfX-6W2-7@gated-at.bofh.it> <tt39U-162-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Apr 06, 2017 at 10:02:48AM +1000, NeilBrown wrote:
> If you are concerned about space in 'struct address_space', just prune
> some wastage.

I'm trying to (via wlists).  still buggy though.

> The "host" field brings no value.  It is only ever assigned in
> inode_init_always():
> 
> 	struct address_space *const mapping = &inode->i_data;
> ......
> 	mapping->host = inode;
> 
> So you could change all references to use
>    container_of(mapping, struct inode, i_data)

Alas, no:

drivers/dax/dax.c:      inode->i_mapping->host = dax_dev->inode;
fs/gfs2/glock.c:                mapping->host = s->s_bdev->bd_inode;
fs/gfs2/ops_fstype.c:   mapping->host = sb->s_bdev->bd_inode;
fs/nilfs2/page.c:       mapping->host = inode;

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[RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-03-31 21:30 +0200
  [RFC PATCH 2/4] dax: set errors in mapping when writeback fails Jeff Layton <jlayton@redhat.com> - 2017-03-31 21:30 +0200
  [RFC PATCH 1/4] fs: new infrastructure for writeback error handling and reporting Jeff Layton <jlayton@redhat.com> - 2017-03-31 21:30 +0200
    Re: [RFC PATCH 1/4] fs: new infrastructure for writeback error  handling and reporting Nikolay Borisov <nborisov@suse.com> - 2017-04-03 09:20 +0200
      Re: [RFC PATCH 1/4] fs: new infrastructure for writeback error  handling and reporting Jeff Layton <jlayton@redhat.com> - 2017-04-03 12:30 +0200
    Re: [RFC PATCH 1/4] fs: new infrastructure for writeback error  handling and reporting Matthew Wilcox <willy@infradead.org> - 2017-04-03 16:50 +0200
      Re: [RFC PATCH 1/4] fs: new infrastructure for writeback error  handling and reporting Jeff Layton <jlayton@redhat.com> - 2017-04-03 17:30 +0200
        Re: [RFC PATCH 1/4] fs: new infrastructure for writeback error  handling and reporting Matthew Wilcox <willy@infradead.org> - 2017-04-03 18:20 +0200
          Re: [RFC PATCH 1/4] fs: new infrastructure for writeback error  handling and reporting Jeff Layton <jlayton@redhat.com> - 2017-04-03 18:40 +0200
  [RFC PATCH 4/4] ext4: wire it up to the new writeback error reporting infrastructure Jeff Layton <jlayton@redhat.com> - 2017-03-31 21:30 +0200
  Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-03 06:30 +0200
    Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-03 12:30 +0200
      Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-03 16:40 +0200
        Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-03 19:50 +0200
          Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeremy Allison <jra@samba.org> - 2017-04-03 20:20 +0200
            Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-03 20:20 +0200
              Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeremy Allison <jra@samba.org> - 2017-04-03 20:40 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeremy Allison <jra@samba.org> - 2017-04-03 20:50 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-03 20:50 +0200
          Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-03 21:20 +0200
            Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-03 22:20 +0200
              Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-04 04:50 +0200
              Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-04 05:10 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-04 13:50 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-05 00:50 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-04 14:00 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-04 14:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-04 18:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-04 18:30 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-04 19:10 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-04 20:10 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-05 01:00 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-05 22:00 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-05 23:10 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-06 02:30 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-06 02:10 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-06 05:00 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-06 07:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-06 15:40 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-07 00:00 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-06 16:10 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-06 21:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-06 22:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-07 15:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-10 01:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-10 15:30 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-07 00:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-05 01:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Jeff Layton <jlayton@redhat.com> - 2017-04-05 13:20 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-06 02:50 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Theodore Ts'o <tytso@mit.edu> - 2017-04-04 15:40 +0200
                Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown <neilb@suse.com> - 2017-04-05 00:30 +0200
    Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking  infrastructure and convert ext4 to use it Matthew Wilcox <willy@infradead.org> - 2017-04-03 17:00 +0200

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