Re: [RFC PATCH v11 10/29] mm: Add AS_UNMOVABLE to mark mapping as completely unmovable

On 7/25/23 14:51, Matthew Wilcox wrote: > On Tue, Jul 25, 2023 at 01:24:03PM +0300, Kirill A . Shutemov wrote: >> On Tue, Jul 18, 2023 at 04:44:53PM -0700, Sean Christopherson wrote: >> > diff --git a/mm/compaction.c b/mm/compaction.c >> > index dbc9f86b1934..a3d2b132df52 100644 >> > --- a/mm/compa

Re: [RFC PATCH v11 10/29] mm: Add AS_UNMOVABLE to mark mapping as completely unmovable

On 7/28/23 18:02, Vlastimil Babka wrote: There's even a comment to that effect later on in the function: Hmm, well spotted. But it wouldn't be so great if we now had to lock every inspected page (and not just dirty pages), just to check the AS_ bit. But I wonder if this is leftover from previou

Re: [RFC PATCH v11 10/29] mm: Add AS_UNMOVABLE to mark mapping as completely unmovable

On 7/25/23 14:51, Matthew Wilcox wrote: > On Tue, Jul 25, 2023 at 01:24:03PM +0300, Kirill A . Shutemov wrote: >> On Tue, Jul 18, 2023 at 04:44:53PM -0700, Sean Christopherson wrote: >> > diff --git a/mm/compaction.c b/mm/compaction.c >> > index dbc9f86b1934..a3d2b132df52 100644 >> > --- a/mm/compa

Re: [RFC PATCH v11 10/29] mm: Add AS_UNMOVABLE to mark mapping as completely unmovable

On Tue, Jul 25, 2023 at 01:51:55PM +0100, Matthew Wilcox wrote: > On Tue, Jul 25, 2023 at 01:24:03PM +0300, Kirill A . Shutemov wrote: > > On Tue, Jul 18, 2023 at 04:44:53PM -0700, Sean Christopherson wrote: > > > diff --git a/mm/compaction.c b/mm/compaction.c > > > index dbc9f86b1934..a3d2b132df52

Re: [RFC PATCH v11 10/29] mm: Add AS_UNMOVABLE to mark mapping as completely unmovable

On Tue, Jul 25, 2023 at 01:24:03PM +0300, Kirill A . Shutemov wrote: > On Tue, Jul 18, 2023 at 04:44:53PM -0700, Sean Christopherson wrote: > > diff --git a/mm/compaction.c b/mm/compaction.c > > index dbc9f86b1934..a3d2b132df52 100644 > > --- a/mm/compaction.c > > +++ b/mm/compaction.c > > @@ -1047

Re: [RFC PATCH v11 10/29] mm: Add AS_UNMOVABLE to mark mapping as completely unmovable

On Tue, Jul 18, 2023 at 04:44:53PM -0700, Sean Christopherson wrote: > diff --git a/mm/compaction.c b/mm/compaction.c > index dbc9f86b1934..a3d2b132df52 100644 > --- a/mm/compaction.c > +++ b/mm/compaction.c > @@ -1047,6 +1047,10 @@ isolate_migratepages_block(struct compact_control *cc, > unsigned

[RFC PATCH v11 10/29] mm: Add AS_UNMOVABLE to mark mapping as completely unmovable

Signed-off-by: Sean Christopherson --- include/linux/pagemap.h | 11 +++ mm/compaction.c | 4 mm/migrate.c| 2 ++ 3 files changed, 17 insertions(+) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 716953ee1ebd..931d2f1da7d5 100644 --- a/incl