Displaying 16 results from an estimated 16 matches for "set_page_refcount".
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set_page_refcounted
2020 Sep 14
2
[PATCH] mm: remove extra ZONE_DEVICE struct page refcount
...e drivers to expect that the page is already refcount==0 on
> entry? Seems odd to go through all this trouble to make the reference
> count appear to be zero to the wider kernel but expect that drivers
> get a fake reference on entry to their ->page_free() callbacks.
Good point.
Since set_page_refcounted() is defined in mm_interal.h I would have to
move the definition to someplace like page_ref.h or have the drivers
cal init_page_count() or set_page_count() since get_page() calls
VM_BUG_ON_PAGE() if refcount == 0.
I'll move set_page_refcounted() since that is what the page allocator
uses and...
2020 Sep 15
0
[PATCH] mm: remove extra ZONE_DEVICE struct page refcount
On Mon, Sep 14, 2020 at 04:53:25PM -0700, Ralph Campbell wrote:
> Since set_page_refcounted() is defined in mm_interal.h I would have to
> move the definition to someplace like page_ref.h or have the drivers
> cal init_page_count() or set_page_count() since get_page() calls
> VM_BUG_ON_PAGE() if refcount == 0.
> I'll move set_page_refcounted() since that is what the page...
2020 Sep 15
2
[PATCH] mm: remove extra ZONE_DEVICE struct page refcount
On 9/15/20 9:29 AM, Christoph Hellwig wrote:
> On Mon, Sep 14, 2020 at 04:53:25PM -0700, Ralph Campbell wrote:
>> Since set_page_refcounted() is defined in mm_interal.h I would have to
>> move the definition to someplace like page_ref.h or have the drivers
>> cal init_page_count() or set_page_count() since get_page() calls
>> VM_BUG_ON_PAGE() if refcount == 0.
>> I'll move set_page_refcounted() since that...
2013 May 26
6
[PATCH v8, part3 12/14] mm: correctly update zone->mamaged_pages
...otalram_pages -= offlined_pages;
-
init_per_zone_wmark_min();
if (!populated_zone(zone)) {
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 403afa6..5b27db4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -783,11 +783,7 @@ void __init init_cma_reserved_pageblock(struct page *page)
set_page_refcounted(page);
set_pageblock_migratetype(page, MIGRATE_CMA);
__free_pages(page, pageblock_order);
- totalram_pages += pageblock_nr_pages;
-#ifdef CONFIG_HIGHMEM
- if (PageHighMem(page))
- totalhigh_pages += pageblock_nr_pages;
-#endif
+ adjust_managed_page_count(page, pageblock_nr_pages);
}
#endif...
2013 May 26
6
[PATCH v8, part3 12/14] mm: correctly update zone->mamaged_pages
...otalram_pages -= offlined_pages;
-
init_per_zone_wmark_min();
if (!populated_zone(zone)) {
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 403afa6..5b27db4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -783,11 +783,7 @@ void __init init_cma_reserved_pageblock(struct page *page)
set_page_refcounted(page);
set_pageblock_migratetype(page, MIGRATE_CMA);
__free_pages(page, pageblock_order);
- totalram_pages += pageblock_nr_pages;
-#ifdef CONFIG_HIGHMEM
- if (PageHighMem(page))
- totalhigh_pages += pageblock_nr_pages;
-#endif
+ adjust_managed_page_count(page, pageblock_nr_pages);
}
#endif...
2013 May 26
6
[PATCH v8, part3 12/14] mm: correctly update zone->mamaged_pages
...otalram_pages -= offlined_pages;
-
init_per_zone_wmark_min();
if (!populated_zone(zone)) {
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 403afa6..5b27db4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -783,11 +783,7 @@ void __init init_cma_reserved_pageblock(struct page *page)
set_page_refcounted(page);
set_pageblock_migratetype(page, MIGRATE_CMA);
__free_pages(page, pageblock_order);
- totalram_pages += pageblock_nr_pages;
-#ifdef CONFIG_HIGHMEM
- if (PageHighMem(page))
- totalhigh_pages += pageblock_nr_pages;
-#endif
+ adjust_managed_page_count(page, pageblock_nr_pages);
}
#endif...
2013 May 11
0
[PATCH v6, part3 13/16] mm: correctly update zone->mamaged_pages
...nt_pages -= offlined_pages;
- totalram_pages -= offlined_pages;
init_per_zone_wmark_min();
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a07e70a..56b0097 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -780,11 +780,7 @@ void __init init_cma_reserved_pageblock(struct page *page)
set_page_refcounted(page);
set_pageblock_migratetype(page, MIGRATE_CMA);
__free_pages(page, pageblock_order);
- totalram_pages += pageblock_nr_pages;
-#ifdef CONFIG_HIGHMEM
- if (PageHighMem(page))
- totalhigh_pages += pageblock_nr_pages;
-#endif
+ adjust_managed_page_count(page, pageblock_nr_pages);
}
#endif...
2013 May 11
0
[PATCH v6, part3 13/16] mm: correctly update zone->mamaged_pages
...nt_pages -= offlined_pages;
- totalram_pages -= offlined_pages;
init_per_zone_wmark_min();
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a07e70a..56b0097 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -780,11 +780,7 @@ void __init init_cma_reserved_pageblock(struct page *page)
set_page_refcounted(page);
set_pageblock_migratetype(page, MIGRATE_CMA);
__free_pages(page, pageblock_order);
- totalram_pages += pageblock_nr_pages;
-#ifdef CONFIG_HIGHMEM
- if (PageHighMem(page))
- totalhigh_pages += pageblock_nr_pages;
-#endif
+ adjust_managed_page_count(page, pageblock_nr_pages);
}
#endif...
2013 May 11
0
[PATCH v6, part3 13/16] mm: correctly update zone->mamaged_pages
...nt_pages -= offlined_pages;
- totalram_pages -= offlined_pages;
init_per_zone_wmark_min();
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a07e70a..56b0097 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -780,11 +780,7 @@ void __init init_cma_reserved_pageblock(struct page *page)
set_page_refcounted(page);
set_pageblock_migratetype(page, MIGRATE_CMA);
__free_pages(page, pageblock_order);
- totalram_pages += pageblock_nr_pages;
-#ifdef CONFIG_HIGHMEM
- if (PageHighMem(page))
- totalhigh_pages += pageblock_nr_pages;
-#endif
+ adjust_managed_page_count(page, pageblock_nr_pages);
}
#endif...
2020 Sep 14
5
[PATCH] mm: remove extra ZONE_DEVICE struct page refcount
...ct page *page)
mem_cgroup_uncharge(page);
+ /*
+ * ZONE_DEVICE drivers keep a reference to the page while it is on
+ * the driver's free list so we reset the reference count here.
+ * This matches the initial reference when the struct pages are
+ * created by memremap_pages().
+ */
+ set_page_refcounted(page);
+
/*
* When a device_private page is freed, the page->mapping field
* may still contain a (stale) mapping value. For example, the
diff --git a/mm/migrate.c b/mm/migrate.c
index 4f89360d9e77..be1586582b52 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -380,11 +380,6 @@ static in...
2007 Apr 18
0
[patch 6/9] Guest page hinting: writable page table entries.
...<< PG_uptodate | 1 << PG_error | 1 << PG_readahead |
1 << PG_referenced | 1 << PG_arch_1 |
- 1 << PG_fs_misc | 1 << PG_mappedtodisk);
+ 1 << PG_fs_misc | 1 << PG_mappedtodisk |
+ 1 << PG_writable );
set_page_private(page, 0);
set_page_refcounted(page);
kernel_map_pages(page, 1 << order, 1);
diff -urpN linux-2.6/mm/page-discard.c linux-2.6-patched/mm/page-discard.c
--- linux-2.6/mm/page-discard.c 2006-09-01 12:50:24.000000000 +0200
+++ linux-2.6-patched/mm/page-discard.c 2006-09-01 12:50:24.000000000 +0200
@@ -81,7 +81,7 @@ void _...
2007 Apr 18
0
[patch 6/9] Guest page hinting: writable page table entries.
...<< PG_uptodate | 1 << PG_error | 1 << PG_readahead |
1 << PG_referenced | 1 << PG_arch_1 |
- 1 << PG_fs_misc | 1 << PG_mappedtodisk);
+ 1 << PG_fs_misc | 1 << PG_mappedtodisk |
+ 1 << PG_writable );
set_page_private(page, 0);
set_page_refcounted(page);
kernel_map_pages(page, 1 << order, 1);
diff -urpN linux-2.6/mm/page-discard.c linux-2.6-patched/mm/page-discard.c
--- linux-2.6/mm/page-discard.c 2006-09-01 12:50:24.000000000 +0200
+++ linux-2.6-patched/mm/page-discard.c 2006-09-01 12:50:24.000000000 +0200
@@ -81,7 +81,7 @@ void _...
2007 Jun 28
6
[patch 0/6] resend: guest page hinting version 5.
Greetings,
after Carsten pitched CMM2 on the kvm mini summit here is a repost
of version 5 of the guest page hinting patches. The code is still
the same but has been adapted to the latest git level.
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
2007 Jun 28
6
[patch 0/6] resend: guest page hinting version 5.
Greetings,
after Carsten pitched CMM2 on the kvm mini summit here is a repost
of version 5 of the guest page hinting patches. The code is still
the same but has been adapted to the latest git level.
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
2007 May 11
6
[patch 0/6] [rfc] guest page hinting version 5
After way to many months here is the fifth version of the guest page
hinting patches. Compared to version four a few improvements have been
added:
- Avoid page_host_discards() calls outside of page-states.h
- The discard list is now implemented via the page_free_discarded
hook and architecture specific code.
- PG_state_change page flag has been replaced with architecture
specficic
2007 May 11
6
[patch 0/6] [rfc] guest page hinting version 5
After way to many months here is the fifth version of the guest page
hinting patches. Compared to version four a few improvements have been
added:
- Avoid page_host_discards() calls outside of page-states.h
- The discard list is now implemented via the page_free_discarded
hook and architecture specific code.
- PG_state_change page flag has been replaced with architecture
specficic