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From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Cc: peterz@infradead.org, dave.hansen@linux.intel.com,
	ard.biesheuvel@linaro.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
	hch@lst.de, joao.m.martins@oracle.com
Subject: [PATCH v2 11/22] device-dax: Drop the dax_region.pfn_flags attribute
Date: Sun, 12 Jul 2020 09:27:05 -0700	[thread overview]
Message-ID: <159457122503.754248.14302846887134083998.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <159457116473.754248.7879464730875147365.stgit@dwillia2-desk3.amr.corp.intel.com>

All callers specify the same flags to alloc_dax_region(), so there is no
need to allow for anything other than PFN_DEV|PFN_MAP, or carry a
->pfn_flags around on the region. Device-dax instances are always page
backed.

Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dax/bus.c         |    4 +---
 drivers/dax/bus.h         |    3 +--
 drivers/dax/dax-private.h |    2 --
 drivers/dax/device.c      |   26 +++-----------------------
 drivers/dax/hmem/hmem.c   |    2 +-
 drivers/dax/pmem/core.c   |    3 +--
 6 files changed, 7 insertions(+), 33 deletions(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index df238c8b6ef2..f06ffa66cd78 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -226,8 +226,7 @@ static void dax_region_unregister(void *region)
 }
 
 struct dax_region *alloc_dax_region(struct device *parent, int region_id,
-		struct resource *res, int target_node, unsigned int align,
-		unsigned long long pfn_flags)
+		struct resource *res, int target_node, unsigned int align)
 {
 	struct dax_region *dax_region;
 
@@ -251,7 +250,6 @@ struct dax_region *alloc_dax_region(struct device *parent, int region_id,
 
 	dev_set_drvdata(parent, dax_region);
 	memcpy(&dax_region->res, res, sizeof(*res));
-	dax_region->pfn_flags = pfn_flags;
 	kref_init(&dax_region->kref);
 	dax_region->id = region_id;
 	dax_region->align = align;
diff --git a/drivers/dax/bus.h b/drivers/dax/bus.h
index 9e4eba67e8b9..55577e9791da 100644
--- a/drivers/dax/bus.h
+++ b/drivers/dax/bus.h
@@ -10,8 +10,7 @@ struct dax_device;
 struct dax_region;
 void dax_region_put(struct dax_region *dax_region);
 struct dax_region *alloc_dax_region(struct device *parent, int region_id,
-		struct resource *res, int target_node, unsigned int align,
-		unsigned long long flags);
+		struct resource *res, int target_node, unsigned int align);
 
 enum dev_dax_subsys {
 	DEV_DAX_BUS,
diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h
index 16850d5388ab..8a4c40ccd2ef 100644
--- a/drivers/dax/dax-private.h
+++ b/drivers/dax/dax-private.h
@@ -23,7 +23,6 @@ void dax_bus_exit(void);
  * @dev: parent device backing this region
  * @align: allocation and mapping alignment for child dax devices
  * @res: physical address range of the region
- * @pfn_flags: identify whether the pfns are paged back or not
  */
 struct dax_region {
 	int id;
@@ -32,7 +31,6 @@ struct dax_region {
 	struct device *dev;
 	unsigned int align;
 	struct resource res;
-	unsigned long long pfn_flags;
 };
 
 /**
diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index 4c0af2eb7e19..bffef1b21144 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -41,14 +41,6 @@ static int check_vma(struct dev_dax *dev_dax, struct vm_area_struct *vma,
 		return -EINVAL;
 	}
 
-	if ((dax_region->pfn_flags & (PFN_DEV|PFN_MAP)) == PFN_DEV
-			&& (vma->vm_flags & VM_DONTCOPY) == 0) {
-		dev_info_ratelimited(dev,
-				"%s: %s: fail, dax range requires MADV_DONTFORK\n",
-				current->comm, func);
-		return -EINVAL;
-	}
-
 	if (!vma_is_dax(vma)) {
 		dev_info_ratelimited(dev,
 				"%s: %s: fail, vma is not DAX capable\n",
@@ -102,7 +94,7 @@ static vm_fault_t __dev_dax_pte_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	*pfn = phys_to_pfn_t(phys, dax_region->pfn_flags);
+	*pfn = phys_to_pfn_t(phys, PFN_DEV|PFN_MAP);
 
 	return vmf_insert_mixed(vmf->vma, vmf->address, *pfn);
 }
@@ -127,12 +119,6 @@ static vm_fault_t __dev_dax_pmd_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	/* dax pmd mappings require pfn_t_devmap() */
-	if ((dax_region->pfn_flags & (PFN_DEV|PFN_MAP)) != (PFN_DEV|PFN_MAP)) {
-		dev_dbg(dev, "region lacks devmap flags\n");
-		return VM_FAULT_SIGBUS;
-	}
-
 	if (fault_size < dax_region->align)
 		return VM_FAULT_SIGBUS;
 	else if (fault_size > dax_region->align)
@@ -150,7 +136,7 @@ static vm_fault_t __dev_dax_pmd_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	*pfn = phys_to_pfn_t(phys, dax_region->pfn_flags);
+	*pfn = phys_to_pfn_t(phys, PFN_DEV|PFN_MAP);
 
 	return vmf_insert_pfn_pmd(vmf, *pfn, vmf->flags & FAULT_FLAG_WRITE);
 }
@@ -177,12 +163,6 @@ static vm_fault_t __dev_dax_pud_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	/* dax pud mappings require pfn_t_devmap() */
-	if ((dax_region->pfn_flags & (PFN_DEV|PFN_MAP)) != (PFN_DEV|PFN_MAP)) {
-		dev_dbg(dev, "region lacks devmap flags\n");
-		return VM_FAULT_SIGBUS;
-	}
-
 	if (fault_size < dax_region->align)
 		return VM_FAULT_SIGBUS;
 	else if (fault_size > dax_region->align)
@@ -200,7 +180,7 @@ static vm_fault_t __dev_dax_pud_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	*pfn = phys_to_pfn_t(phys, dax_region->pfn_flags);
+	*pfn = phys_to_pfn_t(phys, PFN_DEV|PFN_MAP);
 
 	return vmf_insert_pfn_pud(vmf, *pfn, vmf->flags & FAULT_FLAG_WRITE);
 }
diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c
index 29ceb5795297..506893861253 100644
--- a/drivers/dax/hmem/hmem.c
+++ b/drivers/dax/hmem/hmem.c
@@ -22,7 +22,7 @@ static int dax_hmem_probe(struct platform_device *pdev)
 	memcpy(&pgmap.res, res, sizeof(*res));
 
 	dax_region = alloc_dax_region(dev, pdev->id, res, mri->target_node,
-			PMD_SIZE, PFN_DEV|PFN_MAP);
+			PMD_SIZE);
 	if (!dax_region)
 		return -ENOMEM;
 
diff --git a/drivers/dax/pmem/core.c b/drivers/dax/pmem/core.c
index 2bedf8414fff..ea52bb77a294 100644
--- a/drivers/dax/pmem/core.c
+++ b/drivers/dax/pmem/core.c
@@ -53,8 +53,7 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys)
 	memcpy(&res, &pgmap.res, sizeof(res));
 	res.start += offset;
 	dax_region = alloc_dax_region(dev, region_id, &res,
-			nd_region->target_node, le32_to_cpu(pfn_sb->align),
-			PFN_DEV|PFN_MAP);
+			nd_region->target_node, le32_to_cpu(pfn_sb->align));
 	if (!dax_region)
 		return ERR_PTR(-ENOMEM);
 
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WARNING: multiple messages have this Message-ID (diff)
From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Cc: Vishal Verma <vishal.l.verma@intel.com>,
	peterz@infradead.org, dave.hansen@linux.intel.com,
	ard.biesheuvel@linaro.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
	hch@lst.de, joao.m.martins@oracle.com
Subject: [PATCH v2 11/22] device-dax: Drop the dax_region.pfn_flags attribute
Date: Sun, 12 Jul 2020 09:27:05 -0700	[thread overview]
Message-ID: <159457122503.754248.14302846887134083998.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <159457116473.754248.7879464730875147365.stgit@dwillia2-desk3.amr.corp.intel.com>

All callers specify the same flags to alloc_dax_region(), so there is no
need to allow for anything other than PFN_DEV|PFN_MAP, or carry a
->pfn_flags around on the region. Device-dax instances are always page
backed.

Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dax/bus.c         |    4 +---
 drivers/dax/bus.h         |    3 +--
 drivers/dax/dax-private.h |    2 --
 drivers/dax/device.c      |   26 +++-----------------------
 drivers/dax/hmem/hmem.c   |    2 +-
 drivers/dax/pmem/core.c   |    3 +--
 6 files changed, 7 insertions(+), 33 deletions(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index df238c8b6ef2..f06ffa66cd78 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -226,8 +226,7 @@ static void dax_region_unregister(void *region)
 }
 
 struct dax_region *alloc_dax_region(struct device *parent, int region_id,
-		struct resource *res, int target_node, unsigned int align,
-		unsigned long long pfn_flags)
+		struct resource *res, int target_node, unsigned int align)
 {
 	struct dax_region *dax_region;
 
@@ -251,7 +250,6 @@ struct dax_region *alloc_dax_region(struct device *parent, int region_id,
 
 	dev_set_drvdata(parent, dax_region);
 	memcpy(&dax_region->res, res, sizeof(*res));
-	dax_region->pfn_flags = pfn_flags;
 	kref_init(&dax_region->kref);
 	dax_region->id = region_id;
 	dax_region->align = align;
diff --git a/drivers/dax/bus.h b/drivers/dax/bus.h
index 9e4eba67e8b9..55577e9791da 100644
--- a/drivers/dax/bus.h
+++ b/drivers/dax/bus.h
@@ -10,8 +10,7 @@ struct dax_device;
 struct dax_region;
 void dax_region_put(struct dax_region *dax_region);
 struct dax_region *alloc_dax_region(struct device *parent, int region_id,
-		struct resource *res, int target_node, unsigned int align,
-		unsigned long long flags);
+		struct resource *res, int target_node, unsigned int align);
 
 enum dev_dax_subsys {
 	DEV_DAX_BUS,
diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h
index 16850d5388ab..8a4c40ccd2ef 100644
--- a/drivers/dax/dax-private.h
+++ b/drivers/dax/dax-private.h
@@ -23,7 +23,6 @@ void dax_bus_exit(void);
  * @dev: parent device backing this region
  * @align: allocation and mapping alignment for child dax devices
  * @res: physical address range of the region
- * @pfn_flags: identify whether the pfns are paged back or not
  */
 struct dax_region {
 	int id;
@@ -32,7 +31,6 @@ struct dax_region {
 	struct device *dev;
 	unsigned int align;
 	struct resource res;
-	unsigned long long pfn_flags;
 };
 
 /**
diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index 4c0af2eb7e19..bffef1b21144 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -41,14 +41,6 @@ static int check_vma(struct dev_dax *dev_dax, struct vm_area_struct *vma,
 		return -EINVAL;
 	}
 
-	if ((dax_region->pfn_flags & (PFN_DEV|PFN_MAP)) == PFN_DEV
-			&& (vma->vm_flags & VM_DONTCOPY) == 0) {
-		dev_info_ratelimited(dev,
-				"%s: %s: fail, dax range requires MADV_DONTFORK\n",
-				current->comm, func);
-		return -EINVAL;
-	}
-
 	if (!vma_is_dax(vma)) {
 		dev_info_ratelimited(dev,
 				"%s: %s: fail, vma is not DAX capable\n",
@@ -102,7 +94,7 @@ static vm_fault_t __dev_dax_pte_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	*pfn = phys_to_pfn_t(phys, dax_region->pfn_flags);
+	*pfn = phys_to_pfn_t(phys, PFN_DEV|PFN_MAP);
 
 	return vmf_insert_mixed(vmf->vma, vmf->address, *pfn);
 }
@@ -127,12 +119,6 @@ static vm_fault_t __dev_dax_pmd_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	/* dax pmd mappings require pfn_t_devmap() */
-	if ((dax_region->pfn_flags & (PFN_DEV|PFN_MAP)) != (PFN_DEV|PFN_MAP)) {
-		dev_dbg(dev, "region lacks devmap flags\n");
-		return VM_FAULT_SIGBUS;
-	}
-
 	if (fault_size < dax_region->align)
 		return VM_FAULT_SIGBUS;
 	else if (fault_size > dax_region->align)
@@ -150,7 +136,7 @@ static vm_fault_t __dev_dax_pmd_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	*pfn = phys_to_pfn_t(phys, dax_region->pfn_flags);
+	*pfn = phys_to_pfn_t(phys, PFN_DEV|PFN_MAP);
 
 	return vmf_insert_pfn_pmd(vmf, *pfn, vmf->flags & FAULT_FLAG_WRITE);
 }
@@ -177,12 +163,6 @@ static vm_fault_t __dev_dax_pud_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	/* dax pud mappings require pfn_t_devmap() */
-	if ((dax_region->pfn_flags & (PFN_DEV|PFN_MAP)) != (PFN_DEV|PFN_MAP)) {
-		dev_dbg(dev, "region lacks devmap flags\n");
-		return VM_FAULT_SIGBUS;
-	}
-
 	if (fault_size < dax_region->align)
 		return VM_FAULT_SIGBUS;
 	else if (fault_size > dax_region->align)
@@ -200,7 +180,7 @@ static vm_fault_t __dev_dax_pud_fault(struct dev_dax *dev_dax,
 		return VM_FAULT_SIGBUS;
 	}
 
-	*pfn = phys_to_pfn_t(phys, dax_region->pfn_flags);
+	*pfn = phys_to_pfn_t(phys, PFN_DEV|PFN_MAP);
 
 	return vmf_insert_pfn_pud(vmf, *pfn, vmf->flags & FAULT_FLAG_WRITE);
 }
diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c
index 29ceb5795297..506893861253 100644
--- a/drivers/dax/hmem/hmem.c
+++ b/drivers/dax/hmem/hmem.c
@@ -22,7 +22,7 @@ static int dax_hmem_probe(struct platform_device *pdev)
 	memcpy(&pgmap.res, res, sizeof(*res));
 
 	dax_region = alloc_dax_region(dev, pdev->id, res, mri->target_node,
-			PMD_SIZE, PFN_DEV|PFN_MAP);
+			PMD_SIZE);
 	if (!dax_region)
 		return -ENOMEM;
 
diff --git a/drivers/dax/pmem/core.c b/drivers/dax/pmem/core.c
index 2bedf8414fff..ea52bb77a294 100644
--- a/drivers/dax/pmem/core.c
+++ b/drivers/dax/pmem/core.c
@@ -53,8 +53,7 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys)
 	memcpy(&res, &pgmap.res, sizeof(res));
 	res.start += offset;
 	dax_region = alloc_dax_region(dev, region_id, &res,
-			nd_region->target_node, le32_to_cpu(pfn_sb->align),
-			PFN_DEV|PFN_MAP);
+			nd_region->target_node, le32_to_cpu(pfn_sb->align));
 	if (!dax_region)
 		return ERR_PTR(-ENOMEM);
 


  parent reply	other threads:[~2020-07-12 16:43 UTC|newest]

Thread overview: 100+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-12 16:26 [PATCH v2 00/22] device-dax: Support sub-dividing soft-reserved ranges Dan Williams
2020-07-12 16:26 ` Dan Williams
2020-07-12 16:26 ` [PATCH v2 01/22] x86/numa: Cleanup configuration dependent command-line options Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-12 16:26 ` [PATCH v2 02/22] x86/numa: Add 'nohmat' option Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-12 16:58   ` Randy Dunlap
2020-07-12 16:58     ` Randy Dunlap
2020-07-12 16:26 ` [PATCH v2 03/22] efi/fake_mem: Arrange for a resource entry per efi_fake_mem instance Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-12 16:26 ` [PATCH v2 04/22] ACPI: HMAT: Refactor hmat_register_target_device to hmem_register_device Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-12 16:26 ` [PATCH v2 05/22] resource: Report parent to walk_iomem_res_desc() callback Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-12 16:26 ` [PATCH v2 06/22] x86: Move NUMA_KEEP_MEMINFO and related definition to x86-internals Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-12 16:26 ` [PATCH v2 07/22] numa: Introduce a generic memory_add_physaddr_to_nid() Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-13  6:58   ` Mike Rapoport
2020-07-13  6:58     ` Mike Rapoport
2020-07-13 15:42     ` Dan Williams
2020-07-13 15:42       ` Dan Williams
2020-07-13 15:42       ` Dan Williams
2020-07-12 16:26 ` [PATCH v2 08/22] memblock: Introduce a generic phys_addr_to_target_node() Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-13  7:03   ` Mike Rapoport
2020-07-13  7:03     ` Mike Rapoport
2020-07-13 15:48     ` Dan Williams
2020-07-13 15:48       ` Dan Williams
2020-07-13 15:48       ` Dan Williams
2020-07-14  1:36       ` Justin He
2020-07-14  1:36         ` Justin He
2020-07-12 16:26 ` [PATCH v2 09/22] arm64: Convert to generic memblock for numa-info Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-12 16:26 ` [PATCH v2 10/22] ACPI: HMAT: Attach a device for each soft-reserved range Dan Williams
2020-07-12 16:26   ` Dan Williams
2020-07-12 16:27 ` Dan Williams [this message]
2020-07-12 16:27   ` [PATCH v2 11/22] device-dax: Drop the dax_region.pfn_flags attribute Dan Williams
2020-07-12 16:27 ` [PATCH v2 12/22] device-dax: Move instance creation parameters to 'struct dev_dax_data' Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 13/22] device-dax: Make pgmap optional for instance creation Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 14/22] device-dax: Kill dax_kmem_res Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 15/22] device-dax: Add an allocation interface for device-dax instances Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 16/22] device-dax: Introduce 'seed' devices Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 17/22] drivers/base: Make device_find_child_by_name() compatible with sysfs inputs Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-12 17:09   ` Greg Kroah-Hartman
2020-07-12 17:09     ` Greg Kroah-Hartman
2020-07-13 15:39     ` Dan Williams
2020-07-13 15:39       ` Dan Williams
2020-07-13 15:39       ` Dan Williams
2020-07-13 15:52       ` Greg Kroah-Hartman
2020-07-13 15:52         ` Greg Kroah-Hartman
2020-07-13 16:09         ` Dan Williams
2020-07-13 16:09           ` Dan Williams
2020-07-13 16:09           ` Dan Williams
2020-07-13 16:12           ` Greg Kroah-Hartman
2020-07-13 16:12             ` Greg Kroah-Hartman
2020-07-13 16:36             ` Dan Williams
2020-07-13 16:36               ` Dan Williams
2020-07-13 16:36               ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 18/22] device-dax: Add resize support Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 19/22] mm/memremap_pages: Convert to 'struct range' Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-13 16:36   ` Ralph Campbell
2020-07-13 16:36     ` Ralph Campbell
2020-07-13 16:54     ` Dan Williams
2020-07-13 16:54       ` Dan Williams
2020-07-13 16:54       ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 20/22] mm/memremap_pages: Support multiple ranges per invocation Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 21/22] device-dax: Add dis-contiguous resource support Dan Williams
2020-07-12 16:27   ` Dan Williams
2020-07-12 16:28 ` [PATCH v2 22/22] device-dax: Introduce 'mapping' devices Dan Williams
2020-07-12 16:28   ` Dan Williams
2020-07-16 13:18   ` Joao Martins
2020-07-16 13:18     ` Joao Martins
2020-07-16 16:00     ` Dan Williams
2020-07-16 16:00       ` Dan Williams
2020-07-16 16:00       ` Dan Williams
2020-07-16 19:04       ` Joao Martins
2020-07-16 19:04         ` Joao Martins
2020-07-16 17:29 ` [PATCH v1 0/4] device-dax: Further improvements to subdivision Joao Martins
2020-07-16 17:29   ` Joao Martins
2020-07-16 17:29   ` [PATCH v1 1/4] device-dax: Make align a per-device property Joao Martins
2020-07-16 17:29     ` Joao Martins
2020-07-16 17:29   ` [PATCH v1 2/4] device-dax: Add an 'align' attribute Joao Martins
2020-07-16 17:29     ` Joao Martins
2020-07-31 14:52     ` Dan Williams
2020-07-31 14:52       ` Dan Williams
2020-07-31 14:52       ` Dan Williams
2020-07-16 17:29   ` [PATCH v1 3/4] dax/hmem: Introduce dax_hmem.region_idle parameter Joao Martins
2020-07-16 17:29     ` Joao Martins
2020-07-16 17:29   ` [PATCH v1 4/4] device-dax: Add a range mapping allocation attribute Joao Martins
2020-07-16 17:29     ` Joao Martins

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