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* Introduce MAP_SYNC and MAP_SHARED_VALIDATE, a mechanism to enable 'userspace flush' of persistent memory updates via filesystem-dax mappings. It arranges for any filesystem metadata updates that may be required to satisfy a write fault to also be flushed ("on disk") before the kernel returns to userspace from the fault handler. Effectively every write-fault that dirties metadata completes an fsync() before returning from the fault handler. The new MAP_SHARED_VALIDATE mapping type guarantees that the MAP_SYNC flag is validated as supported by the filesystem's ->mmap() file operation. * Add support for the standard ACPI 6.2 label access methods that replace the NVDIMM_FAMILY_INTEL (vendor specific) label methods. This enables interoperability with environments that only implement the standardized methods. * Add support for the ACPI 6.2 NVDIMM media error injection methods. * Add support for the NVDIMM_FAMILY_INTEL v1.6 DIMM commands for latch last shutdown status, firmware update, SMART error injection, and SMART alarm threshold control. * Cleanup physical address information disclosures to be root-only. * Fix revalidation of the DIMM "locked label area" status to support dynamic unlock of the label area. * Expand unit test infrastructure to mock the ACPI 6.2 Translate SPA (system-physical-address) command and error injection commands. Acknowledgements that came after the commits were pushed to -next: |
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badrange.c | ||
blk.c | ||
btt_devs.c | ||
btt.c | ||
btt.h | ||
bus.c | ||
claim.c | ||
core.c | ||
dax_devs.c | ||
dimm_devs.c | ||
dimm.c | ||
e820.c | ||
Kconfig | ||
label.c | ||
label.h | ||
Makefile | ||
namespace_devs.c | ||
nd-core.h | ||
nd.h | ||
pfn_devs.c | ||
pfn.h | ||
pmem.c | ||
pmem.h | ||
region_devs.c | ||
region.c |