From: Dan Williams <dan.j.williams@intel.com>
To: akpm@linux-foundation.org
Cc: peterz@infradead.org, dave.hansen@linux.intel.com,
ard.biesheuvel@linaro.org, linux-mm@kvack.org,
linux-nvdimm@lists.01.org, joao.m.martins@oracle.com,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: [PATCH v3 09/23] device-dax: Move instance creation parameters to 'struct dev_dax_data'
Date: Fri, 31 Jul 2020 20:25:50 -0700 [thread overview]
Message-ID: <159625235093.3040297.17243608963261712599.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <159625229779.3040297.11363509688097221416.stgit@dwillia2-desk3.amr.corp.intel.com>
In preparation for adding more parameters to instance creation, move
existing parameters to a new struct.
Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
drivers/dax/bus.c | 14 +++++++-------
drivers/dax/bus.h | 16 ++++++++--------
drivers/dax/hmem/hmem.c | 8 +++++++-
drivers/dax/pmem/core.c | 9 ++++++++-
4 files changed, 30 insertions(+), 17 deletions(-)
diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index f06ffa66cd78..dffa4655e128 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -395,9 +395,9 @@ static void unregister_dev_dax(void *dev)
put_device(dev);
}
-struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id,
- struct dev_pagemap *pgmap, enum dev_dax_subsys subsys)
+struct dev_dax *devm_create_dev_dax(struct dev_dax_data *data)
{
+ struct dax_region *dax_region = data->dax_region;
struct device *parent = dax_region->dev;
struct dax_device *dax_dev;
struct dev_dax *dev_dax;
@@ -405,14 +405,14 @@ struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id,
struct device *dev;
int rc = -ENOMEM;
- if (id < 0)
+ if (data->id < 0)
return ERR_PTR(-EINVAL);
dev_dax = kzalloc(sizeof(*dev_dax), GFP_KERNEL);
if (!dev_dax)
return ERR_PTR(-ENOMEM);
- memcpy(&dev_dax->pgmap, pgmap, sizeof(*pgmap));
+ memcpy(&dev_dax->pgmap, data->pgmap, sizeof(struct dev_pagemap));
/*
* No 'host' or dax_operations since there is no access to this
@@ -438,13 +438,13 @@ struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id,
inode = dax_inode(dax_dev);
dev->devt = inode->i_rdev;
- if (subsys == DEV_DAX_BUS)
+ if (data->subsys == DEV_DAX_BUS)
dev->bus = &dax_bus_type;
else
dev->class = dax_class;
dev->parent = parent;
dev->type = &dev_dax_type;
- dev_set_name(dev, "dax%d.%d", dax_region->id, id);
+ dev_set_name(dev, "dax%d.%d", dax_region->id, data->id);
rc = device_add(dev);
if (rc) {
@@ -464,7 +464,7 @@ struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id,
return ERR_PTR(rc);
}
-EXPORT_SYMBOL_GPL(__devm_create_dev_dax);
+EXPORT_SYMBOL_GPL(devm_create_dev_dax);
static int match_always_count;
diff --git a/drivers/dax/bus.h b/drivers/dax/bus.h
index 55577e9791da..299c2e7fac09 100644
--- a/drivers/dax/bus.h
+++ b/drivers/dax/bus.h
@@ -13,18 +13,18 @@ struct dax_region *alloc_dax_region(struct device *parent, int region_id,
struct resource *res, int target_node, unsigned int align);
enum dev_dax_subsys {
- DEV_DAX_BUS,
+ DEV_DAX_BUS = 0, /* zeroed dev_dax_data picks this by default */
DEV_DAX_CLASS,
};
-struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id,
- struct dev_pagemap *pgmap, enum dev_dax_subsys subsys);
+struct dev_dax_data {
+ struct dax_region *dax_region;
+ struct dev_pagemap *pgmap;
+ enum dev_dax_subsys subsys;
+ int id;
+};
-static inline struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region,
- int id, struct dev_pagemap *pgmap)
-{
- return __devm_create_dev_dax(dax_region, id, pgmap, DEV_DAX_BUS);
-}
+struct dev_dax *devm_create_dev_dax(struct dev_dax_data *data);
/* to be deleted when DEV_DAX_CLASS is removed */
struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys);
diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c
index 506893861253..b84fe17178d8 100644
--- a/drivers/dax/hmem/hmem.c
+++ b/drivers/dax/hmem/hmem.c
@@ -11,6 +11,7 @@ static int dax_hmem_probe(struct platform_device *pdev)
struct dev_pagemap pgmap = { };
struct dax_region *dax_region;
struct memregion_info *mri;
+ struct dev_dax_data data;
struct dev_dax *dev_dax;
struct resource *res;
@@ -26,7 +27,12 @@ static int dax_hmem_probe(struct platform_device *pdev)
if (!dax_region)
return -ENOMEM;
- dev_dax = devm_create_dev_dax(dax_region, 0, &pgmap);
+ data = (struct dev_dax_data) {
+ .dax_region = dax_region,
+ .id = 0,
+ .pgmap = &pgmap,
+ };
+ dev_dax = devm_create_dev_dax(&data);
if (IS_ERR(dev_dax))
return PTR_ERR(dev_dax);
diff --git a/drivers/dax/pmem/core.c b/drivers/dax/pmem/core.c
index ea52bb77a294..08ee5947a49c 100644
--- a/drivers/dax/pmem/core.c
+++ b/drivers/dax/pmem/core.c
@@ -14,6 +14,7 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys)
resource_size_t offset;
struct nd_pfn_sb *pfn_sb;
struct dev_dax *dev_dax;
+ struct dev_dax_data data;
struct nd_namespace_io *nsio;
struct dax_region *dax_region;
struct dev_pagemap pgmap = { };
@@ -57,7 +58,13 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys)
if (!dax_region)
return ERR_PTR(-ENOMEM);
- dev_dax = __devm_create_dev_dax(dax_region, id, &pgmap, subsys);
+ data = (struct dev_dax_data) {
+ .dax_region = dax_region,
+ .id = id,
+ .pgmap = &pgmap,
+ .subsys = subsys,
+ };
+ dev_dax = devm_create_dev_dax(&data);
/* child dev_dax instances now own the lifetime of the dax_region */
dax_region_put(dax_region);
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next prev parent reply other threads:[~2020-08-01 3:42 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-01 3:24 [PATCH v3 00/23] device-dax: Support sub-dividing soft-reserved ranges Dan Williams
2020-08-01 3:25 ` [PATCH v3 01/23] x86/numa: Cleanup configuration dependent command-line options Dan Williams
2020-08-01 3:25 ` [PATCH v3 02/23] x86/numa: Add 'nohmat' option Dan Williams
2020-08-01 3:51 ` Randy Dunlap
2020-08-01 16:36 ` Dan Williams
2020-08-01 3:25 ` [PATCH v3 03/23] efi/fake_mem: Arrange for a resource entry per efi_fake_mem instance Dan Williams
2020-08-01 3:25 ` [PATCH v3 04/23] ACPI: HMAT: Refactor hmat_register_target_device to hmem_register_device Dan Williams
2020-08-01 3:25 ` [PATCH v3 05/23] resource: Report parent to walk_iomem_res_desc() callback Dan Williams
2020-08-01 3:25 ` [PATCH v3 06/23] mm/memory_hotplug: Introduce default phys_to_target_node() implementation Dan Williams
2020-08-01 6:24 ` kernel test robot
2020-08-01 16:39 ` kernel test robot
2020-08-01 3:25 ` [PATCH v3 07/23] ACPI: HMAT: Attach a device for each soft-reserved range Dan Williams
2020-08-01 3:25 ` [PATCH v3 08/23] device-dax: Drop the dax_region.pfn_flags attribute Dan Williams
2020-08-01 3:25 ` Dan Williams [this message]
2020-08-01 3:25 ` [PATCH v3 10/23] device-dax: Make pgmap optional for instance creation Dan Williams
2020-08-01 3:26 ` [PATCH v3 11/23] device-dax: Kill dax_kmem_res Dan Williams
2020-08-01 3:26 ` [PATCH v3 12/23] device-dax: Add an allocation interface for device-dax instances Dan Williams
2020-08-01 3:26 ` [PATCH v3 13/23] device-dax: Introduce 'seed' devices Dan Williams
2020-08-01 3:26 ` [PATCH v3 14/23] drivers/base: Make device_find_child_by_name() compatible with sysfs inputs Dan Williams
2020-08-01 3:26 ` [PATCH v3 15/23] device-dax: Add resize support Dan Williams
2020-08-01 3:26 ` [PATCH v3 16/23] mm/memremap_pages: Convert to 'struct range' Dan Williams
2020-08-01 3:26 ` [PATCH v3 17/23] mm/memremap_pages: Support multiple ranges per invocation Dan Williams
2020-08-01 3:26 ` [PATCH v3 18/23] device-dax: Add dis-contiguous resource support Dan Williams
2020-08-01 3:26 ` [PATCH v3 19/23] device-dax: Introduce 'mapping' devices Dan Williams
2020-08-01 3:26 ` [PATCH v3 20/23] device-dax: Make align a per-device property Dan Williams
2020-08-01 7:23 ` kernel test robot
2020-08-01 3:26 ` [PATCH v3 21/23] device-dax: Add an 'align' attribute Dan Williams
2020-08-01 6:14 ` kernel test robot
2020-08-01 6:18 ` kernel test robot
2020-08-01 3:27 ` [PATCH v3 22/23] dax/hmem: Introduce dax_hmem.region_idle parameter Dan Williams
2020-08-01 3:27 ` [PATCH v3 23/23] device-dax: Add a range mapping allocation attribute Dan Williams
2020-08-04 17:02 ` [PATCH v3 00/23] device-dax: Support sub-dividing soft-reserved ranges Jason Gunthorpe
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