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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-13 17:35:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-13 17:35:48 -0800
commit2870f6c4d136e093e22159b8916918ff42c92218 (patch)
treef822a4fa9f72a901a40eda4a12dc0055ff8f6266 /drivers
parent934f98d7e8123892bd9ca8ea08728ee0784e6597 (diff)
parent152d7bd80dca5ce77ec2d7313149a2ab990e808e (diff)
downloadlinux-2870f6c4d136e093e22159b8916918ff42c92218.tar.bz2
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams: - three fixes tagged for -stable including a crash fix, simple performance tweak, and an invalid i/o error. - build regression fix for the nvdimm unit tests - nvdimm documentation update * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: fix __dax_pmd_fault crash libnvdimm: documentation clarifications libnvdimm, pmem: fix size trim in pmem_direct_access() libnvdimm, e820: fix numa node for e820-type-12 pmem ranges tools/testing/nvdimm, acpica: fix flag rename build breakage
Diffstat (limited to 'drivers')
-rw-r--r--drivers/nvdimm/e820.c15
-rw-r--r--drivers/nvdimm/pmem.c15
2 files changed, 16 insertions, 14 deletions
diff --git a/drivers/nvdimm/e820.c b/drivers/nvdimm/e820.c
index 8282db2ef99e..b0045a505dc8 100644
--- a/drivers/nvdimm/e820.c
+++ b/drivers/nvdimm/e820.c
@@ -3,6 +3,7 @@
* Copyright (c) 2015, Intel Corporation.
*/
#include <linux/platform_device.h>
+#include <linux/memory_hotplug.h>
#include <linux/libnvdimm.h>
#include <linux/module.h>
@@ -25,6 +26,18 @@ static int e820_pmem_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_MEMORY_HOTPLUG
+static int e820_range_to_nid(resource_size_t addr)
+{
+ return memory_add_physaddr_to_nid(addr);
+}
+#else
+static int e820_range_to_nid(resource_size_t addr)
+{
+ return NUMA_NO_NODE;
+}
+#endif
+
static int e820_pmem_probe(struct platform_device *pdev)
{
static struct nvdimm_bus_descriptor nd_desc;
@@ -48,7 +61,7 @@ static int e820_pmem_probe(struct platform_device *pdev)
memset(&ndr_desc, 0, sizeof(ndr_desc));
ndr_desc.res = p;
ndr_desc.attr_groups = e820_pmem_region_attribute_groups;
- ndr_desc.numa_node = NUMA_NO_NODE;
+ ndr_desc.numa_node = e820_range_to_nid(p->start);
set_bit(ND_REGION_PAGEMAP, &ndr_desc.flags);
if (!nvdimm_pmem_region_create(nvdimm_bus, &ndr_desc))
goto err;
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 012e0649f1ac..8ee79893d2f5 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -105,22 +105,11 @@ static long pmem_direct_access(struct block_device *bdev, sector_t sector,
{
struct pmem_device *pmem = bdev->bd_disk->private_data;
resource_size_t offset = sector * 512 + pmem->data_offset;
- resource_size_t size;
-
- if (pmem->data_offset) {
- /*
- * Limit the direct_access() size to what is covered by
- * the memmap
- */
- size = (pmem->size - offset) & ~ND_PFN_MASK;
- } else
- size = pmem->size - offset;
-
- /* FIXME convert DAX to comprehend that this mapping has a lifetime */
+
*kaddr = pmem->virt_addr + offset;
*pfn = (pmem->phys_addr + offset) >> PAGE_SHIFT;
- return size;
+ return pmem->size - offset;
}
static const struct block_device_operations pmem_fops = {