From: Johannes Weiner <hannes@cmpxchg.org>
To: Jan Kara <jack@suse.cz>
Cc: linux-fsdevel@vger.kernel.org,
Ross Zwisler <ross.zwisler@linux.intel.com>,
linux-mm@kvack.org, linux-ext4@vger.kernel.org
Subject: Re: [PATCH 0/6 v3] dax: Page invalidation fixes
Date: Mon, 12 Dec 2016 12:51:33 -0500 [thread overview]
Message-ID: <20161212175133.GB8688@cmpxchg.org> (raw)
In-Reply-To: <20161212164708.23244-1-jack@suse.cz>
On Mon, Dec 12, 2016 at 05:47:02PM +0100, Jan Kara wrote:
> Hello,
>
> this is the third revision of my fixes of races when invalidating hole pages in
> DAX mappings. See changelogs for details. The series is based on my patches to
> write-protect DAX PTEs which are currently carried in mm tree. This is a hard
> dependency because we really need to closely track dirtiness (and cleanness!)
> of radix tree entries in DAX mappings in order to avoid discarding valid dirty
> bits leading to missed cache flushes on fsync(2).
>
> The tests have passed xfstests for xfs and ext4 in DAX and non-DAX mode.
>
> Johannes, are you OK with patch 2/6 in its current form? I'd like to push these
> patches to some tree once DAX write-protection patches are merged. I'm hoping
> to get at least first three patches merged for 4.10-rc2... Thanks!
LGTM, thanks Jan
WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Jan Kara <jack@suse.cz>
Cc: linux-fsdevel@vger.kernel.org,
Ross Zwisler <ross.zwisler@linux.intel.com>,
linux-mm@kvack.org, linux-ext4@vger.kernel.org
Subject: Re: [PATCH 0/6 v3] dax: Page invalidation fixes
Date: Mon, 12 Dec 2016 12:51:33 -0500 [thread overview]
Message-ID: <20161212175133.GB8688@cmpxchg.org> (raw)
In-Reply-To: <20161212164708.23244-1-jack@suse.cz>
On Mon, Dec 12, 2016 at 05:47:02PM +0100, Jan Kara wrote:
> Hello,
>
> this is the third revision of my fixes of races when invalidating hole pages in
> DAX mappings. See changelogs for details. The series is based on my patches to
> write-protect DAX PTEs which are currently carried in mm tree. This is a hard
> dependency because we really need to closely track dirtiness (and cleanness!)
> of radix tree entries in DAX mappings in order to avoid discarding valid dirty
> bits leading to missed cache flushes on fsync(2).
>
> The tests have passed xfstests for xfs and ext4 in DAX and non-DAX mode.
>
> Johannes, are you OK with patch 2/6 in its current form? I'd like to push these
> patches to some tree once DAX write-protection patches are merged. I'm hoping
> to get at least first three patches merged for 4.10-rc2... Thanks!
LGTM, thanks Jan
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next prev parent reply other threads:[~2016-12-12 17:51 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-12 16:47 [PATCH 0/6 v3] dax: Page invalidation fixes Jan Kara
2016-12-12 16:47 ` Jan Kara
2016-12-12 16:47 ` [PATCH 1/6] ext2: Return BH_New buffers for zeroed blocks Jan Kara
2016-12-12 16:47 ` Jan Kara
2016-12-12 16:47 ` [PATCH 2/6] mm: Invalidate DAX radix tree entries only if appropriate Jan Kara
2016-12-12 16:47 ` Jan Kara
2016-12-12 17:50 ` Johannes Weiner
2016-12-12 17:50 ` Johannes Weiner
2016-12-12 16:47 ` [PATCH 3/6] dax: Avoid page invalidation races and unnecessary radix tree traversals Jan Kara
2016-12-12 16:47 ` Jan Kara
2016-12-12 16:47 ` [PATCH 4/6] dax: Finish fault completely when loading holes Jan Kara
2016-12-12 16:47 ` Jan Kara
2016-12-12 16:47 ` [PATCH 5/6] dax: Call ->iomap_begin without entry lock during dax fault Jan Kara
2016-12-12 16:47 ` Jan Kara
2016-12-12 16:47 ` Jan Kara
2016-12-12 16:47 ` [PATCH 6/6] ext4: Simplify DAX fault path Jan Kara
2016-12-12 16:47 ` Jan Kara
2016-12-12 16:47 ` Jan Kara
2016-12-12 17:51 ` Johannes Weiner [this message]
2016-12-12 17:51 ` [PATCH 0/6 v3] dax: Page invalidation fixes Johannes Weiner
2016-12-13 11:52 ` Jan Kara
2016-12-13 11:52 ` Jan Kara
[not found] ` <20161213115209.GG15362-4I4JzKEfoa/jFM9bn6wA6Q@public.gmane.org>
2016-12-13 18:57 ` Dan Williams
2016-12-13 18:57 ` Dan Williams
2016-12-13 18:57 ` Dan Williams
[not found] ` <CAPcyv4giLyY8pWP09V5BmUM+sfGO-VJCtkfV6L-RFS+0XQsT9Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-12-17 1:35 ` Dan Williams
2016-12-17 1:35 ` Dan Williams
2016-12-17 1:35 ` Dan Williams
2016-12-17 1:49 ` Dan Williams
2016-12-17 1:49 ` Dan Williams
2016-12-19 9:56 ` Jan Kara
2016-12-19 9:56 ` Jan Kara
2016-12-19 21:51 ` Dan Williams
2016-12-19 21:51 ` Dan Williams
[not found] ` <CAPcyv4jjLg=Nyxusz5Hp8OaJ9fi0Xf6LHW37jgVbxKoOYHjNQw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-12-20 7:59 ` Jan Kara
2016-12-20 7:59 ` Jan Kara
2016-12-20 7:59 ` Jan Kara
[not found] ` <20161220075942.GB496-4I4JzKEfoa/jFM9bn6wA6Q@public.gmane.org>
2016-12-20 20:09 ` Dan Williams
2016-12-20 20:09 ` Dan Williams
2016-12-20 20:09 ` Dan Williams
2016-12-13 20:01 ` Dave Chinner
2016-12-13 20:42 ` Theodore Ts'o
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