diff options
Diffstat (limited to 'drivers/nvdimm/pmem.c')
| -rw-r--r-- | drivers/nvdimm/pmem.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index bcc359a4e64d..ecf79fd64517 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -47,22 +47,29 @@ static struct nd_region *to_region(struct pmem_device *pmem) return to_nd_region(to_dev(pmem)->parent); } -static void pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset, +static int pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset, unsigned int len) { struct device *dev = to_dev(pmem); - sector_t sector, cleared; + sector_t sector; + long cleared; + int rc = 0; sector = (offset - pmem->data_offset) / 512; - cleared = nvdimm_clear_poison(dev, pmem->phys_addr + offset, len) / 512; - if (cleared) { - dev_dbg(dev, "%s: %#llx clear %ld sector%s\n", - __func__, (unsigned long long) sector, - cleared, cleared > 1 ? "s" : ""); + cleared = nvdimm_clear_poison(dev, pmem->phys_addr + offset, len); + if (cleared < len) + rc = -EIO; + if (cleared > 0 && cleared / 512) { + cleared /= 512; + dev_dbg(dev, "%s: %#llx clear %ld sector%s\n", __func__, + (unsigned long long) sector, cleared, + cleared > 1 ? "s" : ""); badblocks_clear(&pmem->bb, sector, cleared); } invalidate_pmem(pmem->virt_addr + offset, len); + + return rc; } static void write_pmem(void *pmem_addr, struct page *page, |