From: Jan Kara Subject: Re: [PATCH v6 17/17] dax: remove "depends on BROKEN" from FS_DAX_PMD Date: Mon, 17 Oct 2016 11:09:37 +0200 Message-ID: <20161017090937.GG3359@quack2.suse.cz> References: <20161012225022.15507-1-ross.zwisler@linux.intel.com> <20161012225022.15507-18-ross.zwisler@linux.intel.com> <87eg3ftt4r.fsf@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Theodore Ts'o , Matthew Wilcox , Dave Chinner , linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Christoph Hellwig , linux-xfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, Andreas Dilger , Alexander Viro , linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jan Kara , linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrew Morton To: "Aneesh Kumar K.V" Return-path: Content-Disposition: inline In-Reply-To: <87eg3ftt4r.fsf-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-nvdimm-bounces-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org Sender: "Linux-nvdimm" List-Id: linux-ext4.vger.kernel.org On Mon 17-10-16 11:27:24, Aneesh Kumar K.V wrote: > Ross Zwisler writes: > > > Now that DAX PMD faults are once again working and are now participating in > > DAX's radix tree locking scheme, allow their config option to be enabled. > > > > Signed-off-by: Ross Zwisler > > --- > > fs/Kconfig | 1 - > > 1 file changed, 1 deletion(-) > > > > diff --git a/fs/Kconfig b/fs/Kconfig > > index 2bc7ad7..b6f0fce 100644 > > --- a/fs/Kconfig > > +++ b/fs/Kconfig > > @@ -55,7 +55,6 @@ config FS_DAX_PMD > > depends on FS_DAX > > depends on ZONE_DEVICE > > depends on TRANSPARENT_HUGEPAGE > > - depends on BROKEN > > > > endif # BLOCK > > > This series made dax_pmd_fault return VM_FAULT_FALLBACK in [PATCH v6 09/17] dax: remove dax_pmd_fault(). > That essentially disable dax pmd for ext4. Any plans to fix that ? I'm working on converting ext4 to the new iomap infrastructure. Once that is done, it can use new DAX helpers for PMD faults easily. Honza -- Jan Kara SUSE Labs, CR