diff options
Diffstat (limited to 'drivers/nvdimm')
| -rw-r--r-- | drivers/nvdimm/core.c | 57 | ||||
| -rw-r--r-- | drivers/nvdimm/nd.h | 4 | ||||
| -rw-r--r-- | drivers/nvdimm/pmem.c | 10 |
3 files changed, 24 insertions, 47 deletions
diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c index e419d661e294..2e2832b83c93 100644 --- a/drivers/nvdimm/core.c +++ b/drivers/nvdimm/core.c @@ -11,6 +11,7 @@ * General Public License for more details. */ #include <linux/libnvdimm.h> +#include <linux/badblocks.h> #include <linux/export.h> #include <linux/module.h> #include <linux/blkdev.h> @@ -360,21 +361,19 @@ struct nvdimm_bus *__nvdimm_bus_register(struct device *parent, } EXPORT_SYMBOL_GPL(__nvdimm_bus_register); -static void set_badblock(struct gendisk *disk, sector_t s, int num) +static void set_badblock(struct badblocks *bb, sector_t s, int num) { - struct device *dev = disk->driverfs_dev; - - dev_dbg(dev, "Found a poison range (0x%llx, 0x%llx)\n", + dev_dbg(bb->dev, "Found a poison range (0x%llx, 0x%llx)\n", (u64) s * 512, (u64) num * 512); /* this isn't an error as the hardware will still throw an exception */ - if (disk_set_badblocks(disk, s, num)) - dev_info_once(dev, "%s: failed for sector %llx\n", + if (badblocks_set(bb, s, num, 1)) + dev_info_once(bb->dev, "%s: failed for sector %llx\n", __func__, (u64) s); } /** * __add_badblock_range() - Convert a physical address range to bad sectors - * @disk: the disk associated with the namespace + * @bb: badblocks instance to populate * @ns_offset: namespace offset where the error range begins (in bytes) * @len: number of bytes of poison to be added * @@ -382,25 +381,18 @@ static void set_badblock(struct gendisk *disk, sector_t s, int num) * the bounds of physical addresses for this namespace, i.e. lies in the * interval [ns_start, ns_start + ns_size) */ -static int __add_badblock_range(struct gendisk *disk, u64 ns_offset, u64 len) +static void __add_badblock_range(struct badblocks *bb, u64 ns_offset, u64 len) { - unsigned int sector_size = queue_logical_block_size(disk->queue); + const unsigned int sector_size = 512; sector_t start_sector; u64 num_sectors; u32 rem; - int rc; start_sector = div_u64(ns_offset, sector_size); num_sectors = div_u64_rem(len, sector_size, &rem); if (rem) num_sectors++; - if (!disk->bb) { - rc = disk_alloc_badblocks(disk); - if (rc) - return rc; - } - if (unlikely(num_sectors > (u64)INT_MAX)) { u64 remaining = num_sectors; sector_t s = start_sector; @@ -408,33 +400,27 @@ static int __add_badblock_range(struct gendisk *disk, u64 ns_offset, u64 len) while (remaining) { int done = min_t(u64, remaining, INT_MAX); - set_badblock(disk, s, done); + set_badblock(bb, s, done); remaining -= done; s += done; } } else - set_badblock(disk, start_sector, num_sectors); - - return 0; + set_badblock(bb, start_sector, num_sectors); } /** * nvdimm_namespace_add_poison() - Convert a list of poison ranges to badblocks - * @disk: the gendisk associated with the namespace where badblocks - * will be stored - * @offset: offset at the start of the namespace before 'sector 0' * @ndns: the namespace containing poison ranges + * @bb: badblocks instance to populate + * @offset: offset at the start of the namespace before 'sector 0' * * The poison list generated during NFIT initialization may contain multiple, * possibly overlapping ranges in the SPA (System Physical Address) space. * Compare each of these ranges to the namespace currently being initialized, * and add badblocks to the gendisk for all matching sub-ranges - * - * Return: - * 0 - Success */ -int nvdimm_namespace_add_poison(struct gendisk *disk, resource_size_t offset, - struct nd_namespace_common *ndns) +void nvdimm_namespace_add_poison(struct nd_namespace_common *ndns, + struct badblocks *bb, resource_size_t offset) { struct nd_namespace_io *nsio = to_nd_namespace_io(&ndns->dev); struct nd_region *nd_region = to_nd_region(ndns->dev.parent); @@ -442,7 +428,6 @@ int nvdimm_namespace_add_poison(struct gendisk *disk, resource_size_t offset, struct list_head *poison_list; u64 ns_start, ns_end, ns_size; struct nd_poison *pl; - int rc; ns_size = nvdimm_namespace_capacity(ndns) - offset; ns_start = nsio->res.start + offset; @@ -451,7 +436,7 @@ int nvdimm_namespace_add_poison(struct gendisk *disk, resource_size_t offset, nvdimm_bus = to_nvdimm_bus(nd_region->dev.parent); poison_list = &nvdimm_bus->poison_list; if (list_empty(poison_list)) - return 0; + return; list_for_each_entry(pl, poison_list, list) { u64 pl_end = pl->start + pl->length - 1; @@ -470,10 +455,7 @@ int nvdimm_namespace_add_poison(struct gendisk *disk, resource_size_t offset, len = pl->length; else len = ns_start + ns_size - pl->start; - - rc = __add_badblock_range(disk, start - ns_start, len); - if (rc) - return rc; + __add_badblock_range(bb, start - ns_start, len); continue; } /* Deal with overlap for poison starting before the namespace */ @@ -484,14 +466,9 @@ int nvdimm_namespace_add_poison(struct gendisk *disk, resource_size_t offset, len = pl->start + pl->length - ns_start; else len = ns_size; - - rc = __add_badblock_range(disk, 0, len); - if (rc) - return rc; + __add_badblock_range(bb, 0, len); } } - - return 0; } EXPORT_SYMBOL_GPL(nvdimm_namespace_add_poison); diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h index 198933da83e5..288d96ec7233 100644 --- a/drivers/nvdimm/nd.h +++ b/drivers/nvdimm/nd.h @@ -268,8 +268,8 @@ int nvdimm_namespace_attach_btt(struct nd_namespace_common *ndns); int nvdimm_namespace_detach_btt(struct nd_namespace_common *ndns); const char *nvdimm_namespace_disk_name(struct nd_namespace_common *ndns, char *name); -int nvdimm_namespace_add_poison(struct gendisk *disk, resource_size_t offset, - struct nd_namespace_common *ndns); +void nvdimm_namespace_add_poison(struct nd_namespace_common *ndns, + struct badblocks *bb, resource_size_t offset); int nd_blk_region_init(struct nd_region *nd_region); void __nd_iostat_start(struct bio *bio, unsigned long *start); static inline bool nd_iostat_start(struct bio *bio, unsigned long *start) diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 65b2056e7540..2b1f3009f827 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -23,6 +23,7 @@ #include <linux/module.h> #include <linux/memory_hotplug.h> #include <linux/moduleparam.h> +#include <linux/badblocks.h> #include <linux/vmalloc.h> #include <linux/slab.h> #include <linux/pmem.h> @@ -41,6 +42,7 @@ struct pmem_device { phys_addr_t data_offset; void __pmem *virt_addr; size_t size; + struct badblocks bb; }; static int pmem_major; @@ -168,7 +170,6 @@ static int pmem_attach_disk(struct device *dev, { int nid = dev_to_node(dev); struct gendisk *disk; - int ret; pmem->pmem_queue = blk_alloc_queue_node(GFP_KERNEL, nid); if (!pmem->pmem_queue) @@ -196,10 +197,9 @@ static int pmem_attach_disk(struct device *dev, disk->driverfs_dev = dev; set_capacity(disk, (pmem->size - pmem->data_offset) / 512); pmem->pmem_disk = disk; - - ret = nvdimm_namespace_add_poison(disk, pmem->data_offset, ndns); - if (ret) - return ret; + if (devm_init_badblocks(dev, &pmem->bb)) + return -ENOMEM; + nvdimm_namespace_add_poison(ndns, &pmem->bb, pmem->data_offset); add_disk(disk); revalidate_disk(disk); |