Jan Kara e2ec512825 dm: Call proper helper to determine dax support ... DM was calling generic_fsdax_supported() to determine whether a device referenced in the DM table supports DAX. However this is a helper for "leaf" device drivers so that they don't have to duplicate common generic checks. High level code should call dax_supported() helper which that calls into appropriate helper for the particular device. This problem manifested itself as kernel messages: dm-3: error: dax access failed (-95) when lvm2-testsuite run in cases where a DM device was stacked on top of another DM device. Fixes: 7bf7eac8d6 ("dax: Arrange for dax_supported check to span multiple devices") Cc: <stable@vger.kernel.org> Tested-by: Adrian Huang <ahuang12@lenovo.com> Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Mike Snitzer <snitzer@redhat.com> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/160061715195.13131.5503173247632041975.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>		2020-09-20 08:55:09 -07:00
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pmem	libnvdimm/namespace: Differentiate between probe mapping and runtime mapping	2019-11-14 19:08:47 -08:00
bus.c	dax: Move mandatory ->zero_page_range() check in alloc_dax()	2020-04-02 19:15:03 -07:00
bus.h	dax: Fix alloc_dax_region() compile warning	2019-11-07 15:44:47 +01:00
dax-private.h	device-dax: add memory via add_memory_driver_managed()	2020-06-04 19:06:23 -07:00
device.c	memremap: rename MEMORY_DEVICE_DEVDAX to MEMORY_DEVICE_GENERIC	2020-09-04 09:59:59 +02:00
hmem.c	device-dax: Add a driver for "hmem" devices	2019-11-07 15:45:00 +01:00
Kconfig	device-dax: Add a driver for "hmem" devices	2019-11-07 15:45:00 +01:00
kmem.c	device-dax: add memory via add_memory_driver_managed()	2020-06-04 19:06:23 -07:00
Makefile	device-dax: Add a driver for "hmem" devices	2019-11-07 15:45:00 +01:00
super.c	dm: Call proper helper to determine dax support	2020-09-20 08:55:09 -07:00