diff options
| author | Mike Marshall <hubcap@omnibond.com> | 2017-01-27 13:33:25 -0500 |
|---|---|---|
| committer | Mike Marshall <hubcap@omnibond.com> | 2017-01-27 13:33:25 -0500 |
| commit | a1f817dc8ed79cdff2b76bc51d545fb9465982be (patch) | |
| tree | 2c92b9b7cdf3b0efb3b9ce33cd6f84ef4d54a1a7 /drivers/dax | |
| parent | 04102c76a779f1c4cec4f0fb51cacc360117b522 (diff) | |
| parent | 69973b830859bc6529a7a0468ba0d80ee5117826 (diff) | |
Merge tag 'v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into for-next
Linux 4.9
Diffstat (limited to 'drivers/dax')
| -rw-r--r-- | drivers/dax/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/dax/dax.c | 4 | ||||
| -rw-r--r-- | drivers/dax/pmem.c | 6 |
3 files changed, 7 insertions, 5 deletions
diff --git a/drivers/dax/Kconfig b/drivers/dax/Kconfig index daadd20aa936..3e2ab3b14eea 100644 --- a/drivers/dax/Kconfig +++ b/drivers/dax/Kconfig @@ -14,7 +14,7 @@ if DEV_DAX config DEV_DAX_PMEM tristate "PMEM DAX: direct access to persistent memory" - depends on NVDIMM_DAX + depends on LIBNVDIMM && NVDIMM_DAX default DEV_DAX help Support raw access to persistent memory. Note that this diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c index 0e499bfca41c..286447a83dab 100644 --- a/drivers/dax/dax.c +++ b/drivers/dax/dax.c @@ -270,8 +270,8 @@ static int check_vma(struct dax_dev *dax_dev, struct vm_area_struct *vma, if (!dax_dev->alive) return -ENXIO; - /* prevent private / writable mappings from being established */ - if ((vma->vm_flags & (VM_NORESERVE|VM_SHARED|VM_WRITE)) == VM_WRITE) { + /* prevent private mappings from being established */ + if ((vma->vm_flags & VM_MAYSHARE) != VM_MAYSHARE) { dev_info(dev, "%s: %s: fail, attempted private mapping\n", current->comm, func); return -EINVAL; diff --git a/drivers/dax/pmem.c b/drivers/dax/pmem.c index 9630d8837ba9..73c6ce93a0d9 100644 --- a/drivers/dax/pmem.c +++ b/drivers/dax/pmem.c @@ -44,7 +44,6 @@ static void dax_pmem_percpu_exit(void *data) dev_dbg(dax_pmem->dev, "%s\n", __func__); percpu_ref_exit(ref); - wait_for_completion(&dax_pmem->cmp); } static void dax_pmem_percpu_kill(void *data) @@ -54,6 +53,7 @@ static void dax_pmem_percpu_kill(void *data) dev_dbg(dax_pmem->dev, "%s\n", __func__); percpu_ref_kill(ref); + wait_for_completion(&dax_pmem->cmp); } static int dax_pmem_probe(struct device *dev) @@ -78,7 +78,9 @@ static int dax_pmem_probe(struct device *dev) nsio = to_nd_namespace_io(&ndns->dev); /* parse the 'pfn' info block via ->rw_bytes */ - devm_nsio_enable(dev, nsio); + rc = devm_nsio_enable(dev, nsio); + if (rc) + return rc; altmap = nvdimm_setup_pfn(nd_pfn, &res, &__altmap); if (IS_ERR(altmap)) return PTR_ERR(altmap); |