On Wed, Sep 27, 2017 at 8:39 AM, Ross Zwisler
wrote:
> On Wed, Sep 27, 2017 at 01:35:27PM +0200, Jan Kara wrote:
[..]
>> Hum, this is an interesting option. So do you suggest that filesystems
>> supporting DAX would always setup mappings with VM_MIXEDMAP and without
>> VM_HUGEPAGE and thus we'd ge
On Wed, Sep 27, 2017 at 01:35:27PM +0200, Jan Kara wrote:
> On Tue 26-09-17 14:41:53, Dan Williams wrote:
> > On Tue, Sep 26, 2017 at 2:06 PM, Ross Zwisler
> > wrote:
> > > On Tue, Sep 26, 2017 at 12:19:21PM -0700, Dan Williams wrote:
> > >> On Tue, Sep 26, 2017 at 11:57 AM, Ross Zwisler
> > > <>
On Wed, Sep 27, 2017 at 8:07 AM, Jan Kara wrote:
> On Wed 27-09-17 07:00:53, Dan Williams wrote:
>> On Wed, Sep 27, 2017 at 4:35 AM, Jan Kara wrote:
>> > On Tue 26-09-17 14:41:53, Dan Williams wrote:
>> >> On Tue, Sep 26, 2017 at 2:06 PM, Ross Zwisler
>> >> wrote:
>> >> > On Tue, Sep 26, 2017 at
On Wed 27-09-17 07:00:53, Dan Williams wrote:
> On Wed, Sep 27, 2017 at 4:35 AM, Jan Kara wrote:
> > On Tue 26-09-17 14:41:53, Dan Williams wrote:
> >> On Tue, Sep 26, 2017 at 2:06 PM, Ross Zwisler
> >> wrote:
> >> > On Tue, Sep 26, 2017 at 12:19:21PM -0700, Dan Williams wrote:
> >> >> On Tue, Se
On Wed, Sep 27, 2017 at 4:35 AM, Jan Kara wrote:
> On Tue 26-09-17 14:41:53, Dan Williams wrote:
>> On Tue, Sep 26, 2017 at 2:06 PM, Ross Zwisler
>> wrote:
>> > On Tue, Sep 26, 2017 at 12:19:21PM -0700, Dan Williams wrote:
>> >> On Tue, Sep 26, 2017 at 11:57 AM, Ross Zwisler
>> > <>
>> >> > This
On Tue 26-09-17 14:41:53, Dan Williams wrote:
> On Tue, Sep 26, 2017 at 2:06 PM, Ross Zwisler
> wrote:
> > On Tue, Sep 26, 2017 at 12:19:21PM -0700, Dan Williams wrote:
> >> On Tue, Sep 26, 2017 at 11:57 AM, Ross Zwisler
> > <>
> >> > This decision can only be made (in this
> >> > proposed scheme)
On Tue, Sep 26, 2017 at 2:06 PM, Ross Zwisler
wrote:
> On Tue, Sep 26, 2017 at 12:19:21PM -0700, Dan Williams wrote:
>> On Tue, Sep 26, 2017 at 11:57 AM, Ross Zwisler
> <>
>> > This decision can only be made (in this
>> > proposed scheme) *after* the inode->i_mapping->i_mmap tree has been
>> > po
On Tue, Sep 26, 2017 at 12:19:21PM -0700, Dan Williams wrote:
> On Tue, Sep 26, 2017 at 11:57 AM, Ross Zwisler
<>
> > This decision can only be made (in this
> > proposed scheme) *after* the inode->i_mapping->i_mmap tree has been
> > populated, which means we need another call into the filesystem
On Tue, Sep 26, 2017 at 11:57 AM, Ross Zwisler
wrote:
> On Mon, Sep 25, 2017 at 04:38:45PM -0700, Dan Williams wrote:
>> On Mon, Sep 25, 2017 at 4:14 PM, Ross Zwisler
>> wrote:
>> > When mappings are created the vma->vm_flags that they use vary based on
>> > whether the inode being mapped is usin
On Mon, Sep 25, 2017 at 04:38:45PM -0700, Dan Williams wrote:
> On Mon, Sep 25, 2017 at 4:14 PM, Ross Zwisler
> wrote:
> > When mappings are created the vma->vm_flags that they use vary based on
> > whether the inode being mapped is using DAX or not. This setup happens in
> > XFS via mmap_region(
On Mon, Sep 25, 2017 at 05:14:03PM -0600, Ross Zwisler wrote:
> When mappings are created the vma->vm_flags that they use vary based on
> whether the inode being mapped is using DAX or not. This setup happens in
> XFS via mmap_region()=>call_mmap()=>xfs_file_mmap().
>
> For us to be able to safel
On Mon, Sep 25, 2017 at 4:14 PM, Ross Zwisler
wrote:
> When mappings are created the vma->vm_flags that they use vary based on
> whether the inode being mapped is using DAX or not. This setup happens in
> XFS via mmap_region()=>call_mmap()=>xfs_file_mmap().
>
> For us to be able to safely use the
When mappings are created the vma->vm_flags that they use vary based on
whether the inode being mapped is using DAX or not. This setup happens in
XFS via mmap_region()=>call_mmap()=>xfs_file_mmap().
For us to be able to safely use the DAX per-inode flag we need to prevent
S_DAX transitions when a
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