linux/drivers/nvdimm/namespace_devs.c, branch v6.2

Merge tag 'libnvdimm-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2022-10-15T01:41:41Z

Pull nvdimm updates from Dan Williams: "Some small cleanups and fixes in and around the nvdimm subsystem. The most significant change is a regression fix for nvdimm namespace (volume) creation when the namespace size is smaller than 2MB/ Summary: - Fix nvdimm namespace creation on platforms that do not publish associated 'DIMM' metadata for a persistent memory region. - Miscellaneous fixes and cleanups" * tag 'libnvdimm-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: ACPI: HMAT: Release platform device in case of platform_device_add_data() fails dax: Remove usage of the deprecated ida_simple_xxx API libnvdimm/region: Allow setting align attribute on regions without mappings nvdimm/namespace: Fix comment typo nvdimm: make __nvdimm_security_overwrite_query static nvdimm/region: Fix kernel-doc nvdimm/namespace: drop unneeded temporary variable in size_store() nvdimm/namespace: return uuid_null only once in nd_dev_to_uuid()

Merge branch 'for-6.1/nvdimm' into libnvdimm-for-next

2022-10-02T02:16:16Z

Add v6.1 content on top of some straggling updates that missed v6.0.

nvdimm/namespace: Fix comment typo

2022-09-20T17:47:18Z

The double `existing' is duplicated in the comment, remove one. Signed-off-by: Jason Wang Link: https://lore.kernel.org/r/20220802201918.8408-1-wangborong@cdjrlc.com Signed-off-by: Dan Williams

nvdimm/namespace: drop nested variable in create_namespace_pmem()

2022-07-14T20:48:49Z

Kernel build bot reported: namespace_devs.c:1991:10: warning: Local variable 'uuid' shadows outer variable [shadowVariable] Refactor create_namespace_pmem() by dropping a nested version of the same variable. Fixes: d1c6e08e7503 ("libnvdimm/labels: Add uuid helpers") Reported-by: kernel test robot Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220607164937.33967-1-andriy.shevchenko@linux.intel.com Signed-off-by: Dan Williams

nvdimm/namespace: drop unneeded temporary variable in size_store()

2022-07-14T18:28:26Z

Refactor size_store() in order to remove temporary variable on stack by joining conditionals. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220607153750.33639-1-andriy.shevchenko@linux.intel.com Signed-off-by: Dan Williams

nvdimm/namespace: return uuid_null only once in nd_dev_to_uuid()

2022-07-14T18:23:36Z

Refactor nd_dev_to_uuid() in order to make code shorter and cleaner by joining conditions and hence returning uuid_null only once. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220607152525.33468-1-andriy.shevchenko@linux.intel.com Signed-off-by: Dan Williams

nvdimm: Drop nd_device_lock()

2022-04-28T21:01:55Z

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 Cc: Dave Jiang Cc: Ira Weiny Reviewed-by: Ira Weiny Link: https://lore.kernel.org/r/165055521979.3745911.10751769706032029999.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams

nvdimm: Replace lockdep_mutex with local lock classes

2022-04-28T21:01:55Z

In response to an attempt to expand dev->lockdep_mutex for device_lock() validation [1], Peter points out [2] that the lockdep API already has the ability to assign a dedicated lock class per subsystem device-type. Use lockdep_set_class() to override the default device_lock() '__lockdep_no_validate__' class for each NVDIMM subsystem device-type. This enables lockdep to detect deadlocks and recursive locking within the device-driver core and the subsystem. Link: https://lore.kernel.org/r/164982968798.684294.15817853329823976469.stgit@dwillia2-desk3.amr.corp.intel.com [1] Link: https://lore.kernel.org/r/Ylf0dewci8myLvoW@hirez.programming.kicks-ass.net [2] Suggested-by: Peter Zijlstra Cc: Vishal Verma Cc: Dave Jiang Cc: Ira Weiny Reviewed-by: Ira Weiny Link: https://lore.kernel.org/r/165055520896.3745911.8021255583475547548.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams

nvdimm/region: Delete nd_blk_region infrastructure

2022-03-11T23:53:13Z

Now that the nd_namespace_blk infrastructure is removed, delete all the region machinery to coordinate provisioning aliased capacity between PMEM and BLK. Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/164688418803.2879318.1302315202397235855.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams

nvdimm/namespace: Delete nd_namespace_blk

2022-03-11T23:53:12Z

Now that none of the configuration paths consider BLK namespaces, delete the BLK namespace data and supporting code. Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/164688417727.2879318.11691110761800109662.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams