wireguard-linux/drivers/dax/pmem/compat.c, branch jd/unified-crypt-queueWireGuard for the Linux kernelhttps://git.zx2c4.com/wireguard-linux/atom/drivers/dax/pmem/compat.c?h=jd%2Funified-crypt-queue2019-01-07T05:41:57Zdevice-dax: Add /sys/class/dax backwards compatibility2019-01-07T05:41:57ZDan Williamsdan.j.williams@intel.com2017-07-16T20:51:53Zurn:sha1:730926c3b0998943654019f00296cf8e3b02277e
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>