Displaying 15 results from an estimated 15 matches for "hmm_devmem_free".
2019 Jun 13
0
[PATCH 04/22] mm: don't clear ->mapping in hmm_devmem_free
->mapping isn't even used by HMM users, and the field at the same offset
in the zone_device part of the union is declared as pad. (Which btw is
rather confusing, as DAX uses ->pgmap and ->mapping from two different
sides of the union, but DAX doesn't use hmm_devmem_free).
Signed-off-by: Christoph Hellwig <hch at lst.de>
---
mm/hmm.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/mm/hmm.c b/mm/hmm.c
index 0c62426d1257..e1dc98407e7b 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -1347,8 +1347,6 @@ static void hmm_devmem_free(struct page *page, void *data)
{...
2019 Jun 13
1
[PATCH 04/22] mm: don't clear ->mapping in hmm_devmem_free
...wrote:
> ->mapping isn't even used by HMM users, and the field at the same offset
> in the zone_device part of the union is declared as pad. (Which btw is
> rather confusing, as DAX uses ->pgmap and ->mapping from two different
> sides of the union, but DAX doesn't use hmm_devmem_free).
>
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
> mm/hmm.c | 2 --
> 1 file changed, 2 deletions(-)
Hurm, is hmm following this comment from mm_types.h?
* If you allocate the page using alloc_pages(), you can use some of the
* space in struct page for your ow...
2019 Jun 13
0
[PATCH 10/22] memremap: add a migrate callback to struct dev_pagemap_ops
...page->pgmap->data;
+ struct hmm_devmem *devmem = vmf->page->pgmap->data;
- return devmem->ops->fault(devmem, vma, addr, page, flags, pmdp);
+ return devmem->ops->fault(devmem, vmf->vma, vmf->address, vmf->page,
+ vmf->flags, vmf->pmd);
}
static void hmm_devmem_free(struct page *page, void *data)
@@ -1351,6 +1348,7 @@ static void hmm_devmem_free(struct page *page, void *data)
static const struct dev_pagemap_ops hmm_pagemap_ops = {
.page_free = hmm_devmem_free,
.kill = hmm_devmem_ref_kill,
+ .migrate = hmm_devmem_migrate,
};
/*
@@ -1405,7 +1403,6 @...
2019 Jun 13
1
[PATCH 10/22] memremap: add a migrate callback to struct dev_pagemap_ops
...evmem *devmem = vmf->page->pgmap->data;
>
> - return devmem->ops->fault(devmem, vma, addr, page, flags, pmdp);
> + return devmem->ops->fault(devmem, vmf->vma, vmf->address, vmf->page,
> + vmf->flags, vmf->pmd);
> }
>
> static void hmm_devmem_free(struct page *page, void *data)
> @@ -1351,6 +1348,7 @@ static void hmm_devmem_free(struct page *page, void *data)
> static const struct dev_pagemap_ops hmm_pagemap_ops = {
> .page_free = hmm_devmem_free,
> .kill = hmm_devmem_ref_kill,
> + .migrate = hmm_devmem_migrate,
&g...
2019 Jun 13
0
[PATCH 11/22] memremap: remove the data field in struct dev_pagemap
...struct hmm_devmem *devmem = vmf->page->pgmap->data;
+ struct hmm_devmem *devmem =
+ container_of(vmf->page->pgmap, struct hmm_devmem, pagemap);
return devmem->ops->fault(devmem, vmf->vma, vmf->address, vmf->page,
vmf->flags, vmf->pmd);
}
-static void hmm_devmem_free(struct page *page, void *data)
+static void hmm_devmem_free(struct page *page)
{
- struct hmm_devmem *devmem = data;
+ struct hmm_devmem *devmem =
+ container_of(page->pgmap, struct hmm_devmem, pagemap);
devmem->ops->free(devmem, page);
}
@@ -1409,7 +1411,6 @@ struct hmm_devmem *hmm...
2019 Jun 13
0
[PATCH 07/22] memremap: move dev_pagemap callbacks into a separate structure
...gt;page_free(page, page->pgmap->data);
+ page->pgmap->ops->page_free(page, page->pgmap->data);
} else if (!count)
__put_page(page);
}
diff --git a/mm/hmm.c b/mm/hmm.c
index 13a16faf0a77..2501ac6045d0 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -1348,6 +1348,11 @@ static void hmm_devmem_free(struct page *page, void *data)
devmem->ops->free(devmem, page);
}
+static const struct dev_pagemap_ops hmm_pagemap_ops = {
+ .page_free = hmm_devmem_free,
+ .kill = hmm_devmem_ref_kill,
+};
+
/*
* hmm_devmem_add() - hotplug ZONE_DEVICE memory for device memory
*
@@ -1406,11 +1411...
2019 Jun 17
0
[PATCH 08/25] memremap: move dev_pagemap callbacks into a separate structure
...gt;page_free(page, page->pgmap->data);
+ page->pgmap->ops->page_free(page, page->pgmap->data);
} else if (!count)
__put_page(page);
}
diff --git a/mm/hmm.c b/mm/hmm.c
index 172d695dcb8b..694e53bc55f4 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -1381,6 +1381,12 @@ static void hmm_devmem_free(struct page *page, void *data)
devmem->ops->free(devmem, page);
}
+static const struct dev_pagemap_ops hmm_pagemap_ops = {
+ .page_free = hmm_devmem_free,
+ .kill = hmm_devmem_ref_kill,
+ .cleanup = hmm_devmem_ref_exit,
+};
+
/*
* hmm_devmem_add() - hotplug ZONE_DEVICE memory for...
2019 Jun 13
57
dev_pagemap related cleanups
Hi Dan, Jérôme and Jason,
below is a series that cleans up the dev_pagemap interface so that
it is more easily usable, which removes the need to wrap it in hmm
and thus allowing to kill a lot of code
Diffstat:
22 files changed, 245 insertions(+), 802 deletions(-)
Git tree:
git://git.infradead.org/users/hch/misc.git hmm-devmem-cleanup
Gitweb:
2019 Jun 26
0
[PATCH 12/25] memremap: add a migrate_to_ram method to struct dev_pagemap_ops
...page->pgmap->data;
+ struct hmm_devmem *devmem = vmf->page->pgmap->data;
- return devmem->ops->fault(devmem, vma, addr, page, flags, pmdp);
+ return devmem->ops->fault(devmem, vmf->vma, vmf->address, vmf->page,
+ vmf->flags, vmf->pmd);
}
static void hmm_devmem_free(struct page *page, void *data)
@@ -1388,6 +1385,7 @@ static const struct dev_pagemap_ops hmm_pagemap_ops = {
.page_free = hmm_devmem_free,
.kill = hmm_devmem_ref_kill,
.cleanup = hmm_devmem_ref_exit,
+ .migrate_to_ram = hmm_devmem_migrate_to_ram,
};
/*
@@ -1438,7 +1436,6 @@ struct hm...
2019 Jun 13
0
[PATCH 17/22] mm: remove hmm_devmem_add
...static vm_fault_t hmm_devmem_migrate(struct vm_fault *vmf)
-{
- struct hmm_devmem *devmem =
- container_of(vmf->page->pgmap, struct hmm_devmem, pagemap);
-
- return devmem->ops->fault(devmem, vmf->vma, vmf->address, vmf->page,
- vmf->flags, vmf->pmd);
-}
-
-static void hmm_devmem_free(struct page *page)
-{
- struct hmm_devmem *devmem =
- container_of(page->pgmap, struct hmm_devmem, pagemap);
-
- devmem->ops->free(devmem, page);
-}
-
-static const struct dev_pagemap_ops hmm_pagemap_ops = {
- .page_free = hmm_devmem_free,
- .kill = hmm_devmem_ref_kill,
- .migrate = h...
2019 Jun 13
0
[PATCH 03/22] mm: remove hmm_devmem_add_resource
...GE_SHIFT;
- devmem->pfn_last = devmem->pfn_first +
- (resource_size(devmem->resource) >> PAGE_SHIFT);
- devmem->page_fault = hmm_devmem_fault;
-
- devmem->pagemap.type = MEMORY_DEVICE_PUBLIC;
- devmem->pagemap.res = *devmem->resource;
- devmem->pagemap.page_free = hmm_devmem_free;
- devmem->pagemap.altmap_valid = false;
- devmem->pagemap.ref = &devmem->ref;
- devmem->pagemap.data = devmem;
- devmem->pagemap.kill = hmm_devmem_ref_kill;
-
- result = devm_memremap_pages(devmem->device, &devmem->pagemap);
- if (IS_ERR(result))
- return result;
- re...
2019 Jun 26
0
[PATCH 03/25] mm: remove hmm_devmem_add_resource
...GE_SHIFT;
- devmem->pfn_last = devmem->pfn_first +
- (resource_size(devmem->resource) >> PAGE_SHIFT);
- devmem->page_fault = hmm_devmem_fault;
-
- devmem->pagemap.type = MEMORY_DEVICE_PUBLIC;
- devmem->pagemap.res = *devmem->resource;
- devmem->pagemap.page_free = hmm_devmem_free;
- devmem->pagemap.altmap_valid = false;
- devmem->pagemap.ref = &devmem->ref;
- devmem->pagemap.data = devmem;
- devmem->pagemap.kill = hmm_devmem_ref_kill;
- devmem->pagemap.cleanup = hmm_devmem_ref_exit;
-
- result = devm_memremap_pages(devmem->device, &devmem->pa...
2019 Jun 17
34
dev_pagemap related cleanups v2
Hi Dan, Jérôme and Jason,
below is a series that cleans up the dev_pagemap interface so that
it is more easily usable, which removes the need to wrap it in hmm
and thus allowing to kill a lot of code
Note: this series is on top of the rdma/hmm branch + the dev_pagemap
releas fix series from Dan that went into 5.2-rc5.
Git tree:
git://git.infradead.org/users/hch/misc.git
2019 Jun 26
41
dev_pagemap related cleanups v3
Hi Dan, Jérôme and Jason,
below is a series that cleans up the dev_pagemap interface so that
it is more easily usable, which removes the need to wrap it in hmm
and thus allowing to kill a lot of code
Note: this series is on top of Linux 5.2-rc5 and has some minor
conflicts with the hmm tree that are easy to resolve.
Diffstat summary:
32 files changed, 361 insertions(+), 1012 deletions(-)
Git
2019 Jul 01
30
dev_pagemap related cleanups v4
Hi Dan, Jérôme and Jason,
below is a series that cleans up the dev_pagemap interface so that
it is more easily usable, which removes the need to wrap it in hmm
and thus allowing to kill a lot of code
Note: this series is on top of Linux 5.2-rc6 and has some minor
conflicts with the hmm tree that are easy to resolve.
Diffstat summary:
34 files changed, 379 insertions(+), 1016 deletions(-)
Git