Displaying 8 results from an estimated 8 matches for "nr_range".
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arrange
2020 Sep 16
0
[PATCH] mm: remove extra ZONE_DEVICE struct page refcount
...ap_range(pgmap, i);
WARN_ONCE(pgmap->altmap.alloc, "failed to free all reserved pages\n");
- devmap_managed_enable_put();
}
EXPORT_SYMBOL_GPL(memunmap_pages);
@@ -319,7 +289,6 @@ void *memremap_pages(struct dev_pagemap *pgmap, int nid)
.pgprot = PAGE_KERNEL,
};
const int nr_range = pgmap->nr_range;
- bool need_devmap_managed = true;
int error, i;
if (WARN_ONCE(!nr_range, "nr_range must be specified\n"))
@@ -331,8 +300,9 @@ void *memremap_pages(struct dev_pagemap *pgmap, int nid)
WARN(1, "Device private memory not supported\n");
return ER...
2020 Sep 17
0
[PATCH] mm: remove extra ZONE_DEVICE struct page refcount
...tmap.alloc, "failed to free all reserved pages\n");
> - devmap_managed_enable_put();
> }
> EXPORT_SYMBOL_GPL(memunmap_pages);
>
> @@ -319,7 +289,6 @@ void *memremap_pages(struct dev_pagemap *pgmap, int nid)
> .pgprot = PAGE_KERNEL,
> };
> const int nr_range = pgmap->nr_range;
> - bool need_devmap_managed = true;
> int error, i;
>
> if (WARN_ONCE(!nr_range, "nr_range must be specified\n"))
> @@ -331,8 +300,9 @@ void *memremap_pages(struct dev_pagemap *pgmap, int nid)
> WARN(1, "Device private memory not...
2020 Oct 01
0
[RFC PATCH v3 2/2] mm: remove extra ZONE_DEVICE struct page refcount
...*pgmap)
{
if (pgmap->ops && pgmap->ops->kill)
@@ -176,20 +137,18 @@ static void pageunmap_range(struct dev_pagemap *pgmap, int range_id)
void memunmap_pages(struct dev_pagemap *pgmap)
{
- unsigned long pfn;
int i;
dev_pagemap_kill(pgmap);
for (i = 0; i < pgmap->nr_range; i++)
- for_each_device_pfn(pfn, pgmap, i)
- put_page(pfn_to_page(pfn));
+ percpu_ref_put_many(pgmap->ref, pfn_end(pgmap, i) -
+ pfn_first(pgmap, i));
dev_pagemap_cleanup(pgmap);
for (i = 0; i < pgmap->nr_range; i++)
pageunmap_range(pgmap, i);
WARN_ONCE(pgmap->altm...
2020 Oct 12
2
[PATCH v2] mm/hmm: make device private reference counts zero based
...*pgmap)
{
if (pgmap->ops && pgmap->ops->kill)
@@ -177,20 +161,20 @@ static void pageunmap_range(struct dev_pagemap *pgmap, int range_id)
void memunmap_pages(struct dev_pagemap *pgmap)
{
- unsigned long pfn;
int i;
dev_pagemap_kill(pgmap);
for (i = 0; i < pgmap->nr_range; i++)
- for_each_device_pfn(pfn, pgmap, i)
- put_page(pfn_to_page(pfn));
+ percpu_ref_put_many(pgmap->ref, pfn_end(pgmap, i) -
+ pfn_first(pgmap, i));
dev_pagemap_cleanup(pgmap);
for (i = 0; i < pgmap->nr_range; i++)
pageunmap_range(pgmap, i);
WARN_ONCE(pgmap->altm...
2020 Sep 14
5
[PATCH] mm: remove extra ZONE_DEVICE struct page refcount
...returns true if the page is reserved by ZONE_DEVICE driver.
*/
@@ -176,13 +169,12 @@ static void pageunmap_range(struct dev_pagemap *pgmap, int range_id)
void memunmap_pages(struct dev_pagemap *pgmap)
{
- unsigned long pfn;
int i;
dev_pagemap_kill(pgmap);
for (i = 0; i < pgmap->nr_range; i++)
- for_each_device_pfn(pfn, pgmap, i)
- put_page(pfn_to_page(pfn));
+ percpu_ref_put_many(pgmap->ref, pfn_end(pgmap, i) -
+ pfn_first(pgmap, i));
dev_pagemap_cleanup(pgmap);
for (i = 0; i < pgmap->nr_range; i++)
@@ -516,6 +508,14 @@ void free_devmap_managed_page(struct...
2020 Oct 08
2
[PATCH] mm: make device private reference counts zero based
...*pgmap)
{
if (pgmap->ops && pgmap->ops->kill)
@@ -177,20 +161,20 @@ static void pageunmap_range(struct dev_pagemap *pgmap, int range_id)
void memunmap_pages(struct dev_pagemap *pgmap)
{
- unsigned long pfn;
int i;
dev_pagemap_kill(pgmap);
for (i = 0; i < pgmap->nr_range; i++)
- for_each_device_pfn(pfn, pgmap, i)
- put_page(pfn_to_page(pfn));
+ percpu_ref_put_many(pgmap->ref, pfn_end(pgmap, i) -
+ pfn_first(pgmap, i));
dev_pagemap_cleanup(pgmap);
for (i = 0; i < pgmap->nr_range; i++)
pageunmap_range(pgmap, i);
WARN_ONCE(pgmap->altm...
2020 Oct 01
8
[RFC PATCH v3 0/2] mm: remove extra ZONE_DEVICE struct page refcount
This is still an RFC because after looking at the pmem/dax code some
more, I realized that the ZONE_DEVICE struct pages are being inserted
into the process' page tables with vmf_insert_mixed() and a zero
refcount on the ZONE_DEVICE struct page. This is sort of OK because
insert_pfn() increments the reference count on the pgmap which is what
prevents memunmap_pages() from freeing the struct
2020 Nov 06
4
[PATCH 0/3] drm/nouveau: extend the lifetime of nouveau_drm
Hi folks,
Currently, when the device is removed (or the driver is unbound) the
nouveau_drm structure de-allocated. However, it's still accessible from
and used by some DRM layer callbacks. For example, file handles can be
closed after the device has been removed (physically or otherwise). This
series converts the Nouveau device structure to be allocated and
de-allocated with the