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path: root/drivers/nvdimm/pmem.c
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Diffstat (limited to 'drivers/nvdimm/pmem.c')
-rw-r--r--drivers/nvdimm/pmem.c46
1 files changed, 17 insertions, 29 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 0ba6a978f..8ee79893d 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -64,7 +64,7 @@ static void pmem_do_bvec(struct pmem_device *pmem, struct page *page,
kunmap_atomic(mem);
}
-static void pmem_make_request(struct request_queue *q, struct bio *bio)
+static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
{
bool do_acct;
unsigned long start;
@@ -84,6 +84,7 @@ static void pmem_make_request(struct request_queue *q, struct bio *bio)
wmb_pmem();
bio_endio(bio);
+ return BLK_QC_T_NONE;
}
static int pmem_rw_page(struct block_device *bdev, sector_t sector,
@@ -104,22 +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 = {
@@ -150,18 +140,15 @@ static struct pmem_device *pmem_alloc(struct device *dev,
return ERR_PTR(-EBUSY);
}
- if (pmem_should_map_pages(dev)) {
- void *addr = devm_memremap_pages(dev, res);
+ if (pmem_should_map_pages(dev))
+ pmem->virt_addr = (void __pmem *) devm_memremap_pages(dev, res);
+ else
+ pmem->virt_addr = (void __pmem *) devm_memremap(dev,
+ pmem->phys_addr, pmem->size,
+ ARCH_MEMREMAP_PMEM);
- if (IS_ERR(addr))
- return addr;
- pmem->virt_addr = (void __pmem *) addr;
- } else {
- pmem->virt_addr = memremap_pmem(dev, pmem->phys_addr,
- pmem->size);
- if (!pmem->virt_addr)
- return ERR_PTR(-ENXIO);
- }
+ if (IS_ERR(pmem->virt_addr))
+ return (void __force *) pmem->virt_addr;
return pmem;
}
@@ -179,9 +166,10 @@ static void pmem_detach_disk(struct pmem_device *pmem)
static int pmem_attach_disk(struct device *dev,
struct nd_namespace_common *ndns, struct pmem_device *pmem)
{
+ int nid = dev_to_node(dev);
struct gendisk *disk;
- pmem->pmem_queue = blk_alloc_queue(GFP_KERNEL);
+ pmem->pmem_queue = blk_alloc_queue_node(GFP_KERNEL, nid);
if (!pmem->pmem_queue)
return -ENOMEM;
@@ -191,7 +179,7 @@ static int pmem_attach_disk(struct device *dev,
blk_queue_bounce_limit(pmem->pmem_queue, BLK_BOUNCE_ANY);
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, pmem->pmem_queue);
- disk = alloc_disk(0);
+ disk = alloc_disk_node(0, nid);
if (!disk) {
blk_cleanup_queue(pmem->pmem_queue);
return -ENOMEM;
@@ -363,8 +351,8 @@ static int nvdimm_namespace_attach_pfn(struct nd_namespace_common *ndns)
/* establish pfn range for lookup, and switch to direct map */
pmem = dev_get_drvdata(dev);
- memunmap_pmem(dev, pmem->virt_addr);
- pmem->virt_addr = (void __pmem *)devm_memremap_pages(dev, &nsio->res);
+ devm_memunmap(dev, (void __force *) pmem->virt_addr);
+ pmem->virt_addr = (void __pmem *) devm_memremap_pages(dev, &nsio->res);
if (IS_ERR(pmem->virt_addr)) {
rc = PTR_ERR(pmem->virt_addr);
goto err;