diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2017-07-16 13:51:53 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2019-01-06 21:41:57 -0800 |
| commit | 730926c3b0998943654019f00296cf8e3b02277e (patch) | |
| tree | 9bdff0b62f4a020427144de5b703048bfb1f7c16 /tools/testing | |
| parent | d200781ef237a354d918ceff5cee350d88a93d42 (diff) | |
| download | lwn-730926c3b0998943654019f00296cf8e3b02277e.tar.gz lwn-730926c3b0998943654019f00296cf8e3b02277e.zip | |
device-dax: Add /sys/class/dax backwards compatibility
On the expectation that some environments may not upgrade libdaxctl
(userspace component that depends on the /sys/class/dax hierarchy),
provide a default / legacy dax_pmem_compat driver. The dax_pmem_compat
driver implements the original /sys/class/dax sysfs layout rather than
/sys/bus/dax. When userspace is upgraded it can blacklist this module
and switch to the dax_pmem driver going forward.
CONFIG_DEV_DAX_PMEM_COMPAT and supporting code will be deleted according
to the dax_pmem entry in Documentation/ABI/obsolete/.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/nvdimm/Kbuild | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/testing/nvdimm/Kbuild b/tools/testing/nvdimm/Kbuild index c9b500a652d5..e1286d2cdfbf 100644 --- a/tools/testing/nvdimm/Kbuild +++ b/tools/testing/nvdimm/Kbuild @@ -35,6 +35,8 @@ obj-$(CONFIG_DAX) += dax.o endif obj-$(CONFIG_DEV_DAX) += device_dax.o obj-$(CONFIG_DEV_DAX_PMEM) += dax_pmem.o +obj-$(CONFIG_DEV_DAX_PMEM) += dax_pmem_core.o +obj-$(CONFIG_DEV_DAX_PMEM_COMPAT) += dax_pmem_compat.o nfit-y := $(ACPI_SRC)/core.o nfit-y += $(ACPI_SRC)/intel.o @@ -65,7 +67,9 @@ device_dax-y += dax-dev.o device_dax-y += device_dax_test.o device_dax-y += config_check.o -dax_pmem-y := $(DAX_SRC)/pmem.o +dax_pmem-y := $(DAX_SRC)/pmem/pmem.o +dax_pmem_core-y := $(DAX_SRC)/pmem/core.o +dax_pmem_compat-y := $(DAX_SRC)/pmem/compat.o dax_pmem-y += config_check.o libnvdimm-y := $(NVDIMM_SRC)/core.o |