| Message ID | 165055521979.3745911.10751769706032029999.stgit@dwillia2-desk3.amr.corp.intel.com |
|---|---|
| State | Accepted |
| Commit | 81beea55cb7407a52bac16f7d01a415e008c910f |
| Headers | show |
| Series | device-core: Enable device_lock() lockdep validation | expand |
On Thu, Apr 21, 2022 at 08:33:39AM -0700, Dan Williams wrote: > Now that all NVDIMM subsystem locking is validated with custom lock > classes, there is no need for the custom usage of the lockdep_mutex. > > Cc: Vishal Verma <vishal.l.verma@intel.com> > Cc: Dave Jiang <dave.jiang@intel.com> > Cc: Ira Weiny <ira.weiny@intel.com> > Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> > --- > drivers/nvdimm/btt_devs.c | 16 +++++---- > drivers/nvdimm/bus.c | 24 +++++--------- > drivers/nvdimm/core.c | 10 +++--- > drivers/nvdimm/dimm_devs.c | 8 ++--- > drivers/nvdimm/namespace_devs.c | 36 +++++++++++---------- > drivers/nvdimm/nd-core.h | 66 --------------------------------------- > drivers/nvdimm/pfn_devs.c | 24 +++++++------- > drivers/nvdimm/pmem.c | 2 + > drivers/nvdimm/region.c | 2 + > drivers/nvdimm/region_devs.c | 16 +++++---- > lib/Kconfig.debug | 17 ---------- > 11 files changed, 66 insertions(+), 155 deletions(-) > > diff --git a/drivers/nvdimm/btt_devs.c b/drivers/nvdimm/btt_devs.c > index 120821796668..fabbb31f2c35 100644 > --- a/drivers/nvdimm/btt_devs.c > +++ b/drivers/nvdimm/btt_devs.c > @@ -50,14 +50,14 @@ static ssize_t sector_size_store(struct device *dev, > struct nd_btt *nd_btt = to_nd_btt(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > rc = nd_size_select_store(dev, buf, &nd_btt->lbasize, > btt_lbasize_supported); > dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, > buf[len - 1] == '\n' ? "" : "\n"); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc ? rc : len; > } > @@ -79,11 +79,11 @@ static ssize_t uuid_store(struct device *dev, > struct nd_btt *nd_btt = to_nd_btt(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > rc = nd_uuid_store(dev, &nd_btt->uuid, buf, len); > dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, > buf[len - 1] == '\n' ? "" : "\n"); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc ? rc : len; > } > @@ -108,13 +108,13 @@ static ssize_t namespace_store(struct device *dev, > struct nd_btt *nd_btt = to_nd_btt(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > rc = nd_namespace_store(dev, &nd_btt->ndns, buf, len); > dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, > buf[len - 1] == '\n' ? "" : "\n"); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > @@ -126,14 +126,14 @@ static ssize_t size_show(struct device *dev, > struct nd_btt *nd_btt = to_nd_btt(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > if (dev->driver) > rc = sprintf(buf, "%llu\n", nd_btt->size); > else { > /* no size to convey if the btt instance is disabled */ > rc = -ENXIO; > } > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c > index 85ffa04e93c2..a4fc17db707c 100644 > --- a/drivers/nvdimm/bus.c > +++ b/drivers/nvdimm/bus.c > @@ -88,10 +88,7 @@ static int nvdimm_bus_probe(struct device *dev) > dev->driver->name, dev_name(dev)); > > nvdimm_bus_probe_start(nvdimm_bus); > - debug_nvdimm_lock(dev); > rc = nd_drv->probe(dev); > - debug_nvdimm_unlock(dev); > - > if ((rc == 0 || rc == -EOPNOTSUPP) && > dev->parent && is_nd_region(dev->parent)) > nd_region_advance_seeds(to_nd_region(dev->parent), dev); > @@ -111,11 +108,8 @@ static void nvdimm_bus_remove(struct device *dev) > struct module *provider = to_bus_provider(dev); > struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev); > > - if (nd_drv->remove) { > - debug_nvdimm_lock(dev); > + if (nd_drv->remove) > nd_drv->remove(dev); > - debug_nvdimm_unlock(dev); > - } > > dev_dbg(&nvdimm_bus->dev, "%s.remove(%s)\n", dev->driver->name, > dev_name(dev)); > @@ -139,7 +133,7 @@ static void nvdimm_bus_shutdown(struct device *dev) > > void nd_device_notify(struct device *dev, enum nvdimm_event event) > { > - nd_device_lock(dev); > + device_lock(dev); > if (dev->driver) { > struct nd_device_driver *nd_drv; > > @@ -147,7 +141,7 @@ void nd_device_notify(struct device *dev, enum nvdimm_event event) > if (nd_drv->notify) > nd_drv->notify(dev, event); > } > - nd_device_unlock(dev); > + device_unlock(dev); > } > EXPORT_SYMBOL(nd_device_notify); > > @@ -569,9 +563,9 @@ void nd_device_unregister(struct device *dev, enum nd_async_mode mode) > * or otherwise let the async path handle it if the > * unregistration was already queued. > */ > - nd_device_lock(dev); > + device_lock(dev); > killed = kill_device(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > if (!killed) > return; > @@ -930,10 +924,10 @@ void wait_nvdimm_bus_probe_idle(struct device *dev) > if (nvdimm_bus->probe_active == 0) > break; > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > wait_event(nvdimm_bus->wait, > nvdimm_bus->probe_active == 0); > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > } while (true); > } > @@ -1167,7 +1161,7 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm, > goto out; > } > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > rc = nd_cmd_clear_to_send(nvdimm_bus, nvdimm, func, buf); > if (rc) > @@ -1189,7 +1183,7 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm, > > out_unlock: > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > out: > kfree(in_env); > kfree(out_env); > diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c > index 69a03358817f..144926b7451c 100644 > --- a/drivers/nvdimm/core.c > +++ b/drivers/nvdimm/core.c > @@ -215,7 +215,7 @@ EXPORT_SYMBOL_GPL(to_nvdimm_bus_dev); > * > * Enforce that uuids can only be changed while the device is disabled > * (driver detached) > - * LOCKING: expects nd_device_lock() is held on entry > + * LOCKING: expects device_lock() is held on entry > */ > int nd_uuid_store(struct device *dev, uuid_t **uuid_out, const char *buf, > size_t len) > @@ -316,15 +316,15 @@ static DEVICE_ATTR_RO(provider); > > static int flush_namespaces(struct device *dev, void *data) > { > - nd_device_lock(dev); > - nd_device_unlock(dev); > + device_lock(dev); > + device_unlock(dev); > return 0; > } > > static int flush_regions_dimms(struct device *dev, void *data) > { > - nd_device_lock(dev); > - nd_device_unlock(dev); > + device_lock(dev); > + device_unlock(dev); > device_for_each_child(dev, NULL, flush_namespaces); > return 0; > } > diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c > index 27b8f8cd1b48..c7c980577491 100644 > --- a/drivers/nvdimm/dimm_devs.c > +++ b/drivers/nvdimm/dimm_devs.c > @@ -341,9 +341,9 @@ static ssize_t available_slots_show(struct device *dev, > { > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > rc = __available_slots_show(dev_get_drvdata(dev), buf); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > @@ -386,12 +386,12 @@ static ssize_t security_store(struct device *dev, > * done while probing is idle and the DIMM is not in active use > * in any region. > */ > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > wait_nvdimm_bus_probe_idle(dev); > rc = nvdimm_security_store(dev, buf, len); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c > index 5197a813849d..bf4f5c09d9b1 100644 > --- a/drivers/nvdimm/namespace_devs.c > +++ b/drivers/nvdimm/namespace_devs.c > @@ -264,7 +264,7 @@ static ssize_t alt_name_store(struct device *dev, > struct nd_region *nd_region = to_nd_region(dev->parent); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > wait_nvdimm_bus_probe_idle(dev); > rc = __alt_name_store(dev, buf, len); > @@ -272,7 +272,7 @@ static ssize_t alt_name_store(struct device *dev, > rc = nd_namespace_label_update(nd_region, dev); > dev_dbg(dev, "%s(%zd)\n", rc < 0 ? "fail " : "", rc); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc < 0 ? rc : len; > } > @@ -846,7 +846,7 @@ static ssize_t size_store(struct device *dev, > if (rc) > return rc; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > wait_nvdimm_bus_probe_idle(dev); > rc = __size_store(dev, val); > @@ -868,7 +868,7 @@ static ssize_t size_store(struct device *dev, > dev_dbg(dev, "%llx %s (%d)\n", val, rc < 0 ? "fail" : "success", rc); > > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc < 0 ? rc : len; > } > @@ -1043,7 +1043,7 @@ static ssize_t uuid_store(struct device *dev, > } else > return -ENXIO; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > wait_nvdimm_bus_probe_idle(dev); > if (to_ndns(dev)->claim) > @@ -1059,7 +1059,7 @@ static ssize_t uuid_store(struct device *dev, > dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, > buf[len - 1] == '\n' ? "" : "\n"); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc < 0 ? rc : len; > } > @@ -1118,7 +1118,7 @@ static ssize_t sector_size_store(struct device *dev, > } else > return -ENXIO; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > if (to_ndns(dev)->claim) > rc = -EBUSY; > @@ -1129,7 +1129,7 @@ static ssize_t sector_size_store(struct device *dev, > dev_dbg(dev, "result: %zd %s: %s%s", rc, rc < 0 ? "tried" : "wrote", > buf, buf[len - 1] == '\n' ? "" : "\n"); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc ? rc : len; > } > @@ -1239,9 +1239,9 @@ static ssize_t holder_show(struct device *dev, > struct nd_namespace_common *ndns = to_ndns(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > rc = sprintf(buf, "%s\n", ndns->claim ? dev_name(ndns->claim) : ""); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > @@ -1278,7 +1278,7 @@ static ssize_t holder_class_store(struct device *dev, > struct nd_region *nd_region = to_nd_region(dev->parent); > int rc; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > wait_nvdimm_bus_probe_idle(dev); > rc = __holder_class_store(dev, buf); > @@ -1286,7 +1286,7 @@ static ssize_t holder_class_store(struct device *dev, > rc = nd_namespace_label_update(nd_region, dev); > dev_dbg(dev, "%s(%d)\n", rc < 0 ? "fail " : "", rc); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc < 0 ? rc : len; > } > @@ -1297,7 +1297,7 @@ static ssize_t holder_class_show(struct device *dev, > struct nd_namespace_common *ndns = to_ndns(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > if (ndns->claim_class == NVDIMM_CCLASS_NONE) > rc = sprintf(buf, "\n"); > else if ((ndns->claim_class == NVDIMM_CCLASS_BTT) || > @@ -1309,7 +1309,7 @@ static ssize_t holder_class_show(struct device *dev, > rc = sprintf(buf, "dax\n"); > else > rc = sprintf(buf, "<unknown>\n"); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > @@ -1323,7 +1323,7 @@ static ssize_t mode_show(struct device *dev, > char *mode; > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > claim = ndns->claim; > if (claim && is_nd_btt(claim)) > mode = "safe"; > @@ -1336,7 +1336,7 @@ static ssize_t mode_show(struct device *dev, > else > mode = "raw"; > rc = sprintf(buf, "%s\n", mode); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > @@ -1456,8 +1456,8 @@ struct nd_namespace_common *nvdimm_namespace_common_probe(struct device *dev) > * Flush any in-progess probes / removals in the driver > * for the raw personality of this namespace. > */ > - nd_device_lock(&ndns->dev); > - nd_device_unlock(&ndns->dev); > + device_lock(&ndns->dev); > + device_unlock(&ndns->dev); > if (ndns->dev.driver) { > dev_dbg(&ndns->dev, "is active, can't bind %s\n", > dev_name(dev)); > diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h > index 99b04106434b..cc86ee09d7c0 100644 > --- a/drivers/nvdimm/nd-core.h > +++ b/drivers/nvdimm/nd-core.h > @@ -161,70 +161,4 @@ static inline void devm_nsio_disable(struct device *dev, > { > } > #endif > - > -#ifdef CONFIG_PROVE_NVDIMM_LOCKING > -extern struct class *nd_class; > - > -enum { > - LOCK_BUS, > - LOCK_NDCTL, > - LOCK_REGION, > - LOCK_DIMM = LOCK_REGION, > - LOCK_NAMESPACE, > - LOCK_CLAIM, > -}; > - > -static inline void debug_nvdimm_lock(struct device *dev) > -{ > - if (is_nd_region(dev)) > - mutex_lock_nested(&dev->lockdep_mutex, LOCK_REGION); > - else if (is_nvdimm(dev)) > - mutex_lock_nested(&dev->lockdep_mutex, LOCK_DIMM); > - else if (is_nd_btt(dev) || is_nd_pfn(dev) || is_nd_dax(dev)) > - mutex_lock_nested(&dev->lockdep_mutex, LOCK_CLAIM); > - else if (dev->parent && (is_nd_region(dev->parent))) > - mutex_lock_nested(&dev->lockdep_mutex, LOCK_NAMESPACE); > - else if (is_nvdimm_bus(dev)) > - mutex_lock_nested(&dev->lockdep_mutex, LOCK_BUS); > - else if (dev->class && dev->class == nd_class) > - mutex_lock_nested(&dev->lockdep_mutex, LOCK_NDCTL); > - else > - dev_WARN(dev, "unknown lock level\n"); > -} > - > -static inline void debug_nvdimm_unlock(struct device *dev) > -{ > - mutex_unlock(&dev->lockdep_mutex); > -} > - > -static inline void nd_device_lock(struct device *dev) > -{ > - device_lock(dev); > - debug_nvdimm_lock(dev); > -} > - > -static inline void nd_device_unlock(struct device *dev) > -{ > - debug_nvdimm_unlock(dev); > - device_unlock(dev); > -} > -#else > -static inline void nd_device_lock(struct device *dev) > -{ > - device_lock(dev); > -} > - > -static inline void nd_device_unlock(struct device *dev) > -{ > - device_unlock(dev); > -} > - > -static inline void debug_nvdimm_lock(struct device *dev) > -{ > -} > - > -static inline void debug_nvdimm_unlock(struct device *dev) > -{ > -} > -#endif > #endif /* __ND_CORE_H__ */ > diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c > index 0cd396d0024c..0e92ab4b3283 100644 > --- a/drivers/nvdimm/pfn_devs.c > +++ b/drivers/nvdimm/pfn_devs.c > @@ -55,7 +55,7 @@ static ssize_t mode_store(struct device *dev, > struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); > ssize_t rc = 0; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > if (dev->driver) > rc = -EBUSY; > @@ -77,7 +77,7 @@ static ssize_t mode_store(struct device *dev, > dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, > buf[len - 1] == '\n' ? "" : "\n"); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc ? rc : len; > } > @@ -123,14 +123,14 @@ static ssize_t align_store(struct device *dev, > unsigned long aligns[MAX_NVDIMM_ALIGN] = { [0] = 0, }; > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > rc = nd_size_select_store(dev, buf, &nd_pfn->align, > nd_pfn_supported_alignments(aligns)); > dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, > buf[len - 1] == '\n' ? "" : "\n"); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc ? rc : len; > } > @@ -152,11 +152,11 @@ static ssize_t uuid_store(struct device *dev, > struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > rc = nd_uuid_store(dev, &nd_pfn->uuid, buf, len); > dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, > buf[len - 1] == '\n' ? "" : "\n"); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc ? rc : len; > } > @@ -181,13 +181,13 @@ static ssize_t namespace_store(struct device *dev, > struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > rc = nd_namespace_store(dev, &nd_pfn->ndns, buf, len); > dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, > buf[len - 1] == '\n' ? "" : "\n"); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > @@ -199,7 +199,7 @@ static ssize_t resource_show(struct device *dev, > struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > if (dev->driver) { > struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb; > u64 offset = __le64_to_cpu(pfn_sb->dataoff); > @@ -213,7 +213,7 @@ static ssize_t resource_show(struct device *dev, > /* no address to convey if the pfn instance is disabled */ > rc = -ENXIO; > } > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > @@ -225,7 +225,7 @@ static ssize_t size_show(struct device *dev, > struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > if (dev->driver) { > struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb; > u64 offset = __le64_to_cpu(pfn_sb->dataoff); > @@ -241,7 +241,7 @@ static ssize_t size_show(struct device *dev, > /* no size to convey if the pfn instance is disabled */ > rc = -ENXIO; > } > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c > index 58d95242a836..3992521c151f 100644 > --- a/drivers/nvdimm/pmem.c > +++ b/drivers/nvdimm/pmem.c > @@ -573,7 +573,7 @@ static void nd_pmem_remove(struct device *dev) > nvdimm_namespace_detach_btt(to_nd_btt(dev)); > else { > /* > - * Note, this assumes nd_device_lock() context to not > + * Note, this assumes device_lock() context to not > * race nd_pmem_notify() > */ > sysfs_put(pmem->bb_state); > diff --git a/drivers/nvdimm/region.c b/drivers/nvdimm/region.c > index 188560b1c110..390123d293ea 100644 > --- a/drivers/nvdimm/region.c > +++ b/drivers/nvdimm/region.c > @@ -95,7 +95,7 @@ static void nd_region_remove(struct device *dev) > nvdimm_bus_unlock(dev); > > /* > - * Note, this assumes nd_device_lock() context to not race > + * Note, this assumes device_lock() context to not race > * nd_region_notify() > */ > sysfs_put(nd_region->bb_state); > diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c > index 8650e8d39c89..d976260eca7a 100644 > --- a/drivers/nvdimm/region_devs.c > +++ b/drivers/nvdimm/region_devs.c > @@ -279,7 +279,7 @@ static ssize_t set_cookie_show(struct device *dev, > * the v1.1 namespace label cookie definition. To read all this > * data we need to wait for probing to settle. > */ > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > wait_nvdimm_bus_probe_idle(dev); > if (nd_region->ndr_mappings) { > @@ -296,7 +296,7 @@ static ssize_t set_cookie_show(struct device *dev, > } > } > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > if (rc) > return rc; > @@ -353,12 +353,12 @@ static ssize_t available_size_show(struct device *dev, > * memory nvdimm_bus_lock() is dropped, but that's userspace's > * problem to not race itself. > */ > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > wait_nvdimm_bus_probe_idle(dev); > available = nd_region_available_dpa(nd_region); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return sprintf(buf, "%llu\n", available); > } > @@ -370,12 +370,12 @@ static ssize_t max_available_extent_show(struct device *dev, > struct nd_region *nd_region = to_nd_region(dev); > unsigned long long available = 0; > > - nd_device_lock(dev); > + device_lock(dev); > nvdimm_bus_lock(dev); > wait_nvdimm_bus_probe_idle(dev); > available = nd_region_allocatable_dpa(nd_region); > nvdimm_bus_unlock(dev); > - nd_device_unlock(dev); > + device_unlock(dev); > > return sprintf(buf, "%llu\n", available); > } > @@ -549,12 +549,12 @@ static ssize_t region_badblocks_show(struct device *dev, > struct nd_region *nd_region = to_nd_region(dev); > ssize_t rc; > > - nd_device_lock(dev); > + device_lock(dev); > if (dev->driver) > rc = badblocks_show(&nd_region->bb, buf, 0); > else > rc = -ENXIO; > - nd_device_unlock(dev); > + device_unlock(dev); > > return rc; > } > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug > index 4a2c853c948b..cfe3b092c31d 100644 > --- a/lib/Kconfig.debug > +++ b/lib/Kconfig.debug > @@ -1544,23 +1544,6 @@ config CSD_LOCK_WAIT_DEBUG > include the IPI handler function currently executing (if any) > and relevant stack traces. > > -choice > - prompt "Lock debugging: prove subsystem device_lock() correctness" > - depends on PROVE_LOCKING > - help > - For subsystems that have instrumented their usage of the device_lock() > - with nested annotations, enable lock dependency checking. The locking > - hierarchy 'subclass' identifiers are not compatible across > - sub-systems, so only one can be enabled at a time. > - > -config PROVE_NVDIMM_LOCKING > - bool "NVDIMM" > - depends on LIBNVDIMM > - help > - Enable lockdep to validate nd_device_lock() usage. > - > -endchoice > - > endmenu # lock debugging > > config TRACE_IRQFLAGS >
diff --git a/drivers/nvdimm/btt_devs.c b/drivers/nvdimm/btt_devs.c index 120821796668..fabbb31f2c35 100644 --- a/drivers/nvdimm/btt_devs.c +++ b/drivers/nvdimm/btt_devs.c @@ -50,14 +50,14 @@ static ssize_t sector_size_store(struct device *dev, struct nd_btt *nd_btt = to_nd_btt(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); rc = nd_size_select_store(dev, buf, &nd_btt->lbasize, btt_lbasize_supported); dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, buf[len - 1] == '\n' ? "" : "\n"); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc ? rc : len; } @@ -79,11 +79,11 @@ static ssize_t uuid_store(struct device *dev, struct nd_btt *nd_btt = to_nd_btt(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); rc = nd_uuid_store(dev, &nd_btt->uuid, buf, len); dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, buf[len - 1] == '\n' ? "" : "\n"); - nd_device_unlock(dev); + device_unlock(dev); return rc ? rc : len; } @@ -108,13 +108,13 @@ static ssize_t namespace_store(struct device *dev, struct nd_btt *nd_btt = to_nd_btt(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); rc = nd_namespace_store(dev, &nd_btt->ndns, buf, len); dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, buf[len - 1] == '\n' ? "" : "\n"); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc; } @@ -126,14 +126,14 @@ static ssize_t size_show(struct device *dev, struct nd_btt *nd_btt = to_nd_btt(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); if (dev->driver) rc = sprintf(buf, "%llu\n", nd_btt->size); else { /* no size to convey if the btt instance is disabled */ rc = -ENXIO; } - nd_device_unlock(dev); + device_unlock(dev); return rc; } diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index 85ffa04e93c2..a4fc17db707c 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -88,10 +88,7 @@ static int nvdimm_bus_probe(struct device *dev) dev->driver->name, dev_name(dev)); nvdimm_bus_probe_start(nvdimm_bus); - debug_nvdimm_lock(dev); rc = nd_drv->probe(dev); - debug_nvdimm_unlock(dev); - if ((rc == 0 || rc == -EOPNOTSUPP) && dev->parent && is_nd_region(dev->parent)) nd_region_advance_seeds(to_nd_region(dev->parent), dev); @@ -111,11 +108,8 @@ static void nvdimm_bus_remove(struct device *dev) struct module *provider = to_bus_provider(dev); struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev); - if (nd_drv->remove) { - debug_nvdimm_lock(dev); + if (nd_drv->remove) nd_drv->remove(dev); - debug_nvdimm_unlock(dev); - } dev_dbg(&nvdimm_bus->dev, "%s.remove(%s)\n", dev->driver->name, dev_name(dev)); @@ -139,7 +133,7 @@ static void nvdimm_bus_shutdown(struct device *dev) void nd_device_notify(struct device *dev, enum nvdimm_event event) { - nd_device_lock(dev); + device_lock(dev); if (dev->driver) { struct nd_device_driver *nd_drv; @@ -147,7 +141,7 @@ void nd_device_notify(struct device *dev, enum nvdimm_event event) if (nd_drv->notify) nd_drv->notify(dev, event); } - nd_device_unlock(dev); + device_unlock(dev); } EXPORT_SYMBOL(nd_device_notify); @@ -569,9 +563,9 @@ void nd_device_unregister(struct device *dev, enum nd_async_mode mode) * or otherwise let the async path handle it if the * unregistration was already queued. */ - nd_device_lock(dev); + device_lock(dev); killed = kill_device(dev); - nd_device_unlock(dev); + device_unlock(dev); if (!killed) return; @@ -930,10 +924,10 @@ void wait_nvdimm_bus_probe_idle(struct device *dev) if (nvdimm_bus->probe_active == 0) break; nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); wait_event(nvdimm_bus->wait, nvdimm_bus->probe_active == 0); - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); } while (true); } @@ -1167,7 +1161,7 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm, goto out; } - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); rc = nd_cmd_clear_to_send(nvdimm_bus, nvdimm, func, buf); if (rc) @@ -1189,7 +1183,7 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm, out_unlock: nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); out: kfree(in_env); kfree(out_env); diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c index 69a03358817f..144926b7451c 100644 --- a/drivers/nvdimm/core.c +++ b/drivers/nvdimm/core.c @@ -215,7 +215,7 @@ EXPORT_SYMBOL_GPL(to_nvdimm_bus_dev); * * Enforce that uuids can only be changed while the device is disabled * (driver detached) - * LOCKING: expects nd_device_lock() is held on entry + * LOCKING: expects device_lock() is held on entry */ int nd_uuid_store(struct device *dev, uuid_t **uuid_out, const char *buf, size_t len) @@ -316,15 +316,15 @@ static DEVICE_ATTR_RO(provider); static int flush_namespaces(struct device *dev, void *data) { - nd_device_lock(dev); - nd_device_unlock(dev); + device_lock(dev); + device_unlock(dev); return 0; } static int flush_regions_dimms(struct device *dev, void *data) { - nd_device_lock(dev); - nd_device_unlock(dev); + device_lock(dev); + device_unlock(dev); device_for_each_child(dev, NULL, flush_namespaces); return 0; } diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c index 27b8f8cd1b48..c7c980577491 100644 --- a/drivers/nvdimm/dimm_devs.c +++ b/drivers/nvdimm/dimm_devs.c @@ -341,9 +341,9 @@ static ssize_t available_slots_show(struct device *dev, { ssize_t rc; - nd_device_lock(dev); + device_lock(dev); rc = __available_slots_show(dev_get_drvdata(dev), buf); - nd_device_unlock(dev); + device_unlock(dev); return rc; } @@ -386,12 +386,12 @@ static ssize_t security_store(struct device *dev, * done while probing is idle and the DIMM is not in active use * in any region. */ - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); wait_nvdimm_bus_probe_idle(dev); rc = nvdimm_security_store(dev, buf, len); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc; } diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index 5197a813849d..bf4f5c09d9b1 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -264,7 +264,7 @@ static ssize_t alt_name_store(struct device *dev, struct nd_region *nd_region = to_nd_region(dev->parent); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); wait_nvdimm_bus_probe_idle(dev); rc = __alt_name_store(dev, buf, len); @@ -272,7 +272,7 @@ static ssize_t alt_name_store(struct device *dev, rc = nd_namespace_label_update(nd_region, dev); dev_dbg(dev, "%s(%zd)\n", rc < 0 ? "fail " : "", rc); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc < 0 ? rc : len; } @@ -846,7 +846,7 @@ static ssize_t size_store(struct device *dev, if (rc) return rc; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); wait_nvdimm_bus_probe_idle(dev); rc = __size_store(dev, val); @@ -868,7 +868,7 @@ static ssize_t size_store(struct device *dev, dev_dbg(dev, "%llx %s (%d)\n", val, rc < 0 ? "fail" : "success", rc); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc < 0 ? rc : len; } @@ -1043,7 +1043,7 @@ static ssize_t uuid_store(struct device *dev, } else return -ENXIO; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); wait_nvdimm_bus_probe_idle(dev); if (to_ndns(dev)->claim) @@ -1059,7 +1059,7 @@ static ssize_t uuid_store(struct device *dev, dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, buf[len - 1] == '\n' ? "" : "\n"); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc < 0 ? rc : len; } @@ -1118,7 +1118,7 @@ static ssize_t sector_size_store(struct device *dev, } else return -ENXIO; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); if (to_ndns(dev)->claim) rc = -EBUSY; @@ -1129,7 +1129,7 @@ static ssize_t sector_size_store(struct device *dev, dev_dbg(dev, "result: %zd %s: %s%s", rc, rc < 0 ? "tried" : "wrote", buf, buf[len - 1] == '\n' ? "" : "\n"); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc ? rc : len; } @@ -1239,9 +1239,9 @@ static ssize_t holder_show(struct device *dev, struct nd_namespace_common *ndns = to_ndns(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); rc = sprintf(buf, "%s\n", ndns->claim ? dev_name(ndns->claim) : ""); - nd_device_unlock(dev); + device_unlock(dev); return rc; } @@ -1278,7 +1278,7 @@ static ssize_t holder_class_store(struct device *dev, struct nd_region *nd_region = to_nd_region(dev->parent); int rc; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); wait_nvdimm_bus_probe_idle(dev); rc = __holder_class_store(dev, buf); @@ -1286,7 +1286,7 @@ static ssize_t holder_class_store(struct device *dev, rc = nd_namespace_label_update(nd_region, dev); dev_dbg(dev, "%s(%d)\n", rc < 0 ? "fail " : "", rc); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc < 0 ? rc : len; } @@ -1297,7 +1297,7 @@ static ssize_t holder_class_show(struct device *dev, struct nd_namespace_common *ndns = to_ndns(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); if (ndns->claim_class == NVDIMM_CCLASS_NONE) rc = sprintf(buf, "\n"); else if ((ndns->claim_class == NVDIMM_CCLASS_BTT) || @@ -1309,7 +1309,7 @@ static ssize_t holder_class_show(struct device *dev, rc = sprintf(buf, "dax\n"); else rc = sprintf(buf, "<unknown>\n"); - nd_device_unlock(dev); + device_unlock(dev); return rc; } @@ -1323,7 +1323,7 @@ static ssize_t mode_show(struct device *dev, char *mode; ssize_t rc; - nd_device_lock(dev); + device_lock(dev); claim = ndns->claim; if (claim && is_nd_btt(claim)) mode = "safe"; @@ -1336,7 +1336,7 @@ static ssize_t mode_show(struct device *dev, else mode = "raw"; rc = sprintf(buf, "%s\n", mode); - nd_device_unlock(dev); + device_unlock(dev); return rc; } @@ -1456,8 +1456,8 @@ struct nd_namespace_common *nvdimm_namespace_common_probe(struct device *dev) * Flush any in-progess probes / removals in the driver * for the raw personality of this namespace. */ - nd_device_lock(&ndns->dev); - nd_device_unlock(&ndns->dev); + device_lock(&ndns->dev); + device_unlock(&ndns->dev); if (ndns->dev.driver) { dev_dbg(&ndns->dev, "is active, can't bind %s\n", dev_name(dev)); diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h index 99b04106434b..cc86ee09d7c0 100644 --- a/drivers/nvdimm/nd-core.h +++ b/drivers/nvdimm/nd-core.h @@ -161,70 +161,4 @@ static inline void devm_nsio_disable(struct device *dev, { } #endif - -#ifdef CONFIG_PROVE_NVDIMM_LOCKING -extern struct class *nd_class; - -enum { - LOCK_BUS, - LOCK_NDCTL, - LOCK_REGION, - LOCK_DIMM = LOCK_REGION, - LOCK_NAMESPACE, - LOCK_CLAIM, -}; - -static inline void debug_nvdimm_lock(struct device *dev) -{ - if (is_nd_region(dev)) - mutex_lock_nested(&dev->lockdep_mutex, LOCK_REGION); - else if (is_nvdimm(dev)) - mutex_lock_nested(&dev->lockdep_mutex, LOCK_DIMM); - else if (is_nd_btt(dev) || is_nd_pfn(dev) || is_nd_dax(dev)) - mutex_lock_nested(&dev->lockdep_mutex, LOCK_CLAIM); - else if (dev->parent && (is_nd_region(dev->parent))) - mutex_lock_nested(&dev->lockdep_mutex, LOCK_NAMESPACE); - else if (is_nvdimm_bus(dev)) - mutex_lock_nested(&dev->lockdep_mutex, LOCK_BUS); - else if (dev->class && dev->class == nd_class) - mutex_lock_nested(&dev->lockdep_mutex, LOCK_NDCTL); - else - dev_WARN(dev, "unknown lock level\n"); -} - -static inline void debug_nvdimm_unlock(struct device *dev) -{ - mutex_unlock(&dev->lockdep_mutex); -} - -static inline void nd_device_lock(struct device *dev) -{ - device_lock(dev); - debug_nvdimm_lock(dev); -} - -static inline void nd_device_unlock(struct device *dev) -{ - debug_nvdimm_unlock(dev); - device_unlock(dev); -} -#else -static inline void nd_device_lock(struct device *dev) -{ - device_lock(dev); -} - -static inline void nd_device_unlock(struct device *dev) -{ - device_unlock(dev); -} - -static inline void debug_nvdimm_lock(struct device *dev) -{ -} - -static inline void debug_nvdimm_unlock(struct device *dev) -{ -} -#endif #endif /* __ND_CORE_H__ */ diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c index 0cd396d0024c..0e92ab4b3283 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -55,7 +55,7 @@ static ssize_t mode_store(struct device *dev, struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); ssize_t rc = 0; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); if (dev->driver) rc = -EBUSY; @@ -77,7 +77,7 @@ static ssize_t mode_store(struct device *dev, dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, buf[len - 1] == '\n' ? "" : "\n"); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc ? rc : len; } @@ -123,14 +123,14 @@ static ssize_t align_store(struct device *dev, unsigned long aligns[MAX_NVDIMM_ALIGN] = { [0] = 0, }; ssize_t rc; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); rc = nd_size_select_store(dev, buf, &nd_pfn->align, nd_pfn_supported_alignments(aligns)); dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, buf[len - 1] == '\n' ? "" : "\n"); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc ? rc : len; } @@ -152,11 +152,11 @@ static ssize_t uuid_store(struct device *dev, struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); rc = nd_uuid_store(dev, &nd_pfn->uuid, buf, len); dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, buf[len - 1] == '\n' ? "" : "\n"); - nd_device_unlock(dev); + device_unlock(dev); return rc ? rc : len; } @@ -181,13 +181,13 @@ static ssize_t namespace_store(struct device *dev, struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); rc = nd_namespace_store(dev, &nd_pfn->ndns, buf, len); dev_dbg(dev, "result: %zd wrote: %s%s", rc, buf, buf[len - 1] == '\n' ? "" : "\n"); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return rc; } @@ -199,7 +199,7 @@ static ssize_t resource_show(struct device *dev, struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); if (dev->driver) { struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb; u64 offset = __le64_to_cpu(pfn_sb->dataoff); @@ -213,7 +213,7 @@ static ssize_t resource_show(struct device *dev, /* no address to convey if the pfn instance is disabled */ rc = -ENXIO; } - nd_device_unlock(dev); + device_unlock(dev); return rc; } @@ -225,7 +225,7 @@ static ssize_t size_show(struct device *dev, struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); if (dev->driver) { struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb; u64 offset = __le64_to_cpu(pfn_sb->dataoff); @@ -241,7 +241,7 @@ static ssize_t size_show(struct device *dev, /* no size to convey if the pfn instance is disabled */ rc = -ENXIO; } - nd_device_unlock(dev); + device_unlock(dev); return rc; } diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 58d95242a836..3992521c151f 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -573,7 +573,7 @@ static void nd_pmem_remove(struct device *dev) nvdimm_namespace_detach_btt(to_nd_btt(dev)); else { /* - * Note, this assumes nd_device_lock() context to not + * Note, this assumes device_lock() context to not * race nd_pmem_notify() */ sysfs_put(pmem->bb_state); diff --git a/drivers/nvdimm/region.c b/drivers/nvdimm/region.c index 188560b1c110..390123d293ea 100644 --- a/drivers/nvdimm/region.c +++ b/drivers/nvdimm/region.c @@ -95,7 +95,7 @@ static void nd_region_remove(struct device *dev) nvdimm_bus_unlock(dev); /* - * Note, this assumes nd_device_lock() context to not race + * Note, this assumes device_lock() context to not race * nd_region_notify() */ sysfs_put(nd_region->bb_state); diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index 8650e8d39c89..d976260eca7a 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -279,7 +279,7 @@ static ssize_t set_cookie_show(struct device *dev, * the v1.1 namespace label cookie definition. To read all this * data we need to wait for probing to settle. */ - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); wait_nvdimm_bus_probe_idle(dev); if (nd_region->ndr_mappings) { @@ -296,7 +296,7 @@ static ssize_t set_cookie_show(struct device *dev, } } nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); if (rc) return rc; @@ -353,12 +353,12 @@ static ssize_t available_size_show(struct device *dev, * memory nvdimm_bus_lock() is dropped, but that's userspace's * problem to not race itself. */ - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); wait_nvdimm_bus_probe_idle(dev); available = nd_region_available_dpa(nd_region); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return sprintf(buf, "%llu\n", available); } @@ -370,12 +370,12 @@ static ssize_t max_available_extent_show(struct device *dev, struct nd_region *nd_region = to_nd_region(dev); unsigned long long available = 0; - nd_device_lock(dev); + device_lock(dev); nvdimm_bus_lock(dev); wait_nvdimm_bus_probe_idle(dev); available = nd_region_allocatable_dpa(nd_region); nvdimm_bus_unlock(dev); - nd_device_unlock(dev); + device_unlock(dev); return sprintf(buf, "%llu\n", available); } @@ -549,12 +549,12 @@ static ssize_t region_badblocks_show(struct device *dev, struct nd_region *nd_region = to_nd_region(dev); ssize_t rc; - nd_device_lock(dev); + device_lock(dev); if (dev->driver) rc = badblocks_show(&nd_region->bb, buf, 0); else rc = -ENXIO; - nd_device_unlock(dev); + device_unlock(dev); return rc; } diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 4a2c853c948b..cfe3b092c31d 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1544,23 +1544,6 @@ config CSD_LOCK_WAIT_DEBUG include the IPI handler function currently executing (if any) and relevant stack traces. -choice - prompt "Lock debugging: prove subsystem device_lock() correctness" - depends on PROVE_LOCKING - help - For subsystems that have instrumented their usage of the device_lock() - with nested annotations, enable lock dependency checking. The locking - hierarchy 'subclass' identifiers are not compatible across - sub-systems, so only one can be enabled at a time. - -config PROVE_NVDIMM_LOCKING - bool "NVDIMM" - depends on LIBNVDIMM - help - Enable lockdep to validate nd_device_lock() usage. - -endchoice - endmenu # lock debugging config TRACE_IRQFLAGS
Now that all NVDIMM subsystem locking is validated with custom lock classes, there is no need for the custom usage of the lockdep_mutex. Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> --- drivers/nvdimm/btt_devs.c | 16 +++++---- drivers/nvdimm/bus.c | 24 +++++--------- drivers/nvdimm/core.c | 10 +++--- drivers/nvdimm/dimm_devs.c | 8 ++--- drivers/nvdimm/namespace_devs.c | 36 +++++++++++---------- drivers/nvdimm/nd-core.h | 66 --------------------------------------- drivers/nvdimm/pfn_devs.c | 24 +++++++------- drivers/nvdimm/pmem.c | 2 + drivers/nvdimm/region.c | 2 + drivers/nvdimm/region_devs.c | 16 +++++---- lib/Kconfig.debug | 17 ---------- 11 files changed, 66 insertions(+), 155 deletions(-)