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From: Matthew Wilcox <willy@infradead.org>
To: NeilBrown <neilb@suse.com>
Cc: Jeff Layton <jlayton@redhat.com>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-ext4@vger.kernel.org, akpm@linux-foundation.org,
	tytso@mit.edu, jack@suse.cz
Subject: Re: [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it
Date: Thu, 6 Apr 2017 06:31:03 -0700	[thread overview]
Message-ID: <20170406133103.GC31725@bombadil.infradead.org> (raw)
In-Reply-To: <87inmi15md.fsf@notabene.neil.brown.name>

On Thu, Apr 06, 2017 at 03:12:42PM +1000, NeilBrown wrote:
> On Wed, Apr 05 2017, Matthew Wilcox wrote:
> 
> > 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.
> 
> Cool.
> (I wonder what a wlist is.... weighted list?)

A homonym ;-)  Waitlists.  Yet Another Variation of a doubly linked list.
This variation has only a single head pointer (like the hlist), allows
O(1) deletion from any point in the list (but requires that you know the
head of the list).  The tail of the list is pointed to by head->prev.

http://git.infradead.org/users/willy/linux-dax.git/shortlog/refs/heads/wlist

It also needs updating to the latest tree; WW locks got revamped.

  reply	other threads:[~2017-04-06 13:31 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-31 19:25 [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it Jeff Layton
2017-03-31 19:26 ` [RFC PATCH 1/4] fs: new infrastructure for writeback error handling and reporting Jeff Layton
2017-04-03  7:12   ` Nikolay Borisov
2017-04-03 10:28     ` Jeff Layton
2017-04-03 14:47   ` Matthew Wilcox
2017-04-03 15:19     ` Jeff Layton
2017-04-03 16:15       ` Matthew Wilcox
2017-04-03 16:30         ` Jeff Layton
2017-03-31 19:26 ` [RFC PATCH 2/4] dax: set errors in mapping when writeback fails Jeff Layton
2017-03-31 19:26 ` [RFC PATCH 3/4] buffer: set wb errors using both new and old infrastructure for now Jeff Layton
2017-03-31 19:26 ` [RFC PATCH 4/4] ext4: wire it up to the new writeback error reporting infrastructure Jeff Layton
2017-04-03  4:25 ` [RFC PATCH 0/4] fs: introduce new writeback error tracking infrastructure and convert ext4 to use it NeilBrown
2017-04-03 10:28   ` Jeff Layton
2017-04-03 14:32     ` Matthew Wilcox
2017-04-03 17:47       ` Jeff Layton
2017-04-03 18:09         ` Jeremy Allison
2017-04-03 18:18           ` Jeff Layton
2017-04-03 18:36             ` Jeremy Allison
2017-04-03 18:40               ` Jeremy Allison
2017-04-03 18:49                 ` Jeff Layton
2017-04-03 19:16         ` Matthew Wilcox
2017-04-03 20:16           ` Jeff Layton
2017-04-04  2:45             ` Matthew Wilcox
2017-04-04  3:03             ` NeilBrown
2017-04-04 11:41               ` Jeff Layton
2017-04-04 22:41                 ` NeilBrown
2017-04-04 11:53               ` Matthew Wilcox
2017-04-04 12:17                 ` Jeff Layton
2017-04-04 16:12                   ` Matthew Wilcox
2017-04-04 16:25                     ` Jeff Layton
2017-04-04 17:09                       ` Matthew Wilcox
2017-04-04 18:08                         ` Jeff Layton
2017-04-04 22:50                         ` NeilBrown
2017-04-05 19:49                         ` Jeff Layton
2017-04-05 21:03                           ` Matthew Wilcox
2017-04-06  0:19                             ` NeilBrown
2017-04-06  0:02                           ` NeilBrown
2017-04-06  2:55                             ` Matthew Wilcox
2017-04-06  5:12                               ` NeilBrown
2017-04-06 13:31                                 ` Matthew Wilcox [this message]
2017-04-06 21:53                                   ` NeilBrown
2017-04-06 14:02                             ` Jeff Layton
2017-04-06 19:14                             ` Jeff Layton
2017-04-06 20:05                               ` Matthew Wilcox
2017-04-07 13:12                                 ` Jeff Layton
2017-04-09 23:15                                   ` NeilBrown
2017-04-10 13:19                                     ` Jeff Layton
2017-04-06 22:15                               ` NeilBrown
2017-04-04 23:13                       ` NeilBrown
2017-04-05 11:14                         ` Jeff Layton
2017-04-06  0:24                           ` NeilBrown
2017-04-04 13:38                 ` Theodore Ts'o
2017-04-04 22:28                 ` NeilBrown
2017-04-03 14:51   ` Matthew Wilcox

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