search for: get_new_page

...migration is scucessful, move newpage to right list */ + if (rc == MIGRATEPAGE_SUCCESS) { + if (unlikely(__is_movable_balloon_page(newpage))) + put_page(newpage); + else + putback_lru_page(newpage); + } + return rc; } @@ -940,6 +948,12 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, if (page_count(page) == 1) { /* page was freed from under us. So we are done. */ + ClearPageActive(page); + ClearPageUnevictable(page); + if (put_new_page) + put_new_page(newpage, private); + else + put_page(newpage); goto out; } @@ -952,9 +966,6 @@ static ICE_noinline int un...

...migration is successful, move newpage to right list */ + if (rc == MIGRATEPAGE_SUCCESS) { + if (unlikely(__is_movable_balloon_page(newpage))) + put_page(newpage); + else + putback_lru_page(newpage); + } + return rc; } @@ -946,6 +954,12 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, if (page_count(page) == 1) { /* page was freed from under us. So we are done. */ + ClearPageActive(page); + ClearPageUnevictable(page); + if (put_new_page) + put_new_page(newpage, private); + else + put_page(newpage); goto out; } @@ -958,10 +972,8 @@ static ICE_noinline int u...

....com> > > > >Acked-by: Vlastimil Babka <vbabka at suse.cz> > > > >Signed-off-by: Minchan Kim <minchan at kernel.org> > > > > > > [...] > > > > > > >@@ -974,28 +986,28 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > > > > list_del(&page->lru); > > > > dec_zone_page_state(page, NR_ISOLATED_ANON + > > > > page_is_file_cache(page)); > > > >- /* Soft-offlined page shouldn't go through lru cache list */ > > > >+ } > > > &...

....com> > > > >Acked-by: Vlastimil Babka <vbabka at suse.cz> > > > >Signed-off-by: Minchan Kim <minchan at kernel.org> > > > > > > [...] > > > > > > >@@ -974,28 +986,28 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > > > > list_del(&page->lru); > > > > dec_zone_page_state(page, NR_ISOLATED_ANON + > > > > page_is_file_cache(page)); > > > >- /* Soft-offlined page shouldn't go through lru cache list */ > > > >+ } > > > &...

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

...ckins <hughd at google.com> > Cc: Naoya Horiguchi <n-horiguchi at ah.jp.nec.com> > Acked-by: Vlastimil Babka <vbabka at suse.cz> > Signed-off-by: Minchan Kim <minchan at kernel.org> [...] > @@ -974,28 +986,28 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > list_del(&page->lru); > dec_zone_page_state(page, NR_ISOLATED_ANON + > page_is_file_cache(page)); > - /* Soft-offlined page shouldn't go through lru cache list */ > + } > + > + /* > + * If migration is successful, drop the reference grabbed duri...

...ckins <hughd at google.com> > Cc: Naoya Horiguchi <n-horiguchi at ah.jp.nec.com> > Acked-by: Vlastimil Babka <vbabka at suse.cz> > Signed-off-by: Minchan Kim <minchan at kernel.org> [...] > @@ -974,28 +986,28 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > list_del(&page->lru); > dec_zone_page_state(page, NR_ISOLATED_ANON + > page_is_file_cache(page)); > - /* Soft-offlined page shouldn't go through lru cache list */ > + } > + > + /* > + * If migration is successful, drop the reference grabbed duri...

...ful, old pagecache page->mapping must be cleared before @@ -782,6 +899,7 @@ static int move_to_new_page(struct page *newpage, struct page *page, if (!PageAnon(page)) page->mapping = NULL; } +out: return rc; } @@ -960,6 +1078,8 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, put_new_page(newpage, private); else put_page(newpage); + if (PageMovable(page)) + __ClearPageMovable(page); goto out; } @@ -1000,8 +1120,26 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, num_poisoned_pages_inc(); } } else { - if (rc != -EAGAIN)...

...t; > >Cc: Naoya Horiguchi <n-horiguchi at ah.jp.nec.com> > >Acked-by: Vlastimil Babka <vbabka at suse.cz> > >Signed-off-by: Minchan Kim <minchan at kernel.org> > > [...] > > >@@ -974,28 +986,28 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > > list_del(&page->lru); > > dec_zone_page_state(page, NR_ISOLATED_ANON + > > page_is_file_cache(page)); > >- /* Soft-offlined page shouldn't go through lru cache list */ > >+ } > >+ > >+ /* > >+ * If migration is successful,...

...red before > @@ -782,6 +899,7 @@ static int move_to_new_page(struct page *newpage, struct page *page, > if (!PageAnon(page)) > page->mapping = NULL; > } > +out: > return rc; > } > > @@ -960,6 +1078,8 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > put_new_page(newpage, private); > else > put_page(newpage); > + if (PageMovable(page)) > + __ClearPageMovable(page); > goto out; > } > > @@ -1000,8 +1120,26 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > num_poison...

...red before > @@ -782,6 +899,7 @@ static int move_to_new_page(struct page *newpage, struct page *page, > if (!PageAnon(page)) > page->mapping = NULL; > } > +out: > return rc; > } > > @@ -960,6 +1078,8 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > put_new_page(newpage, private); > else > put_page(newpage); > + if (PageMovable(page)) > + __ClearPageMovable(page); > goto out; > } > > @@ -1000,8 +1120,26 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > num_poison...

...@@ static int move_to_new_page(struct page *newpage, struct page *page, > > if (!PageAnon(page)) > > page->mapping = NULL; > > } > >+out: > > return rc; > > } > > > >@@ -960,6 +1078,8 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, > > put_new_page(newpage, private); > > else > > put_page(newpage); > >+ if (PageMovable(page)) > >+ __ClearPageMovable(page); > > goto out; > > } > > > >@@ -1000,8 +1120,26 @@ static ICE_noinline int unmap_and_move(new_page_...

This patchset follows the main idea discussed at 2012 LSFMMS section: "Ballooning for transparent huge pages" -- http://lwn.net/Articles/490114/ to introduce the required changes to the virtio_balloon driver, as well as changes to the core compaction & migration bits, in order to allow memory balloon pages become movable within a guest. Rafael Aquini (4): mm: introduce compaction

This patchset follows the main idea discussed at 2012 LSFMMS section: "Ballooning for transparent huge pages" -- http://lwn.net/Articles/490114/ to introduce the required changes to the virtio_balloon driver, as well as changes to the core compaction & migration bits, in order to allow memory balloon pages become movable within a guest. Rafael Aquini (4): mm: introduce compaction

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patchset follows the main idea discussed at 2012 LSFMMS section: "Ballooning for transparent huge