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4e4ced9379
linux-next/drivers/nvdimm
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Vivek Goyal 4e4ced9379 dax: Move mandatory ->zero_page_range() check in alloc_dax() 
zero_page_range() dax operation is mandatory for dax devices. Right now
that check happens in dax_zero_page_range() function. Dan thinks that's
too late and its better to do the check earlier in alloc_dax().

I also modified alloc_dax() to return pointer with error code in it in
case of failure. Right now it returns NULL and caller assumes failure
happened due to -ENOMEM. But with this ->zero_page_range() check, I
need to return -EINVAL instead.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Link: https://lore.kernel.org/r/20200401161125.GB9398@redhat.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2020-04-02 19:15:03 -07:00
..
badrange.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
blk.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
btt_devs.c libnvdimm: Move attribute groups to device type 2019-11-17 09:17:38 -08:00
btt.c libnvdimm/btt: fix variable 'rc' set but not used 2019-11-17 09:17:38 -08:00
btt.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
bus.c libnvdimm for 5.5 2019-12-01 18:43:25 -08:00
claim.c libnvdimm/namespace: Differentiate between probe mapping and runtime mapping 2019-11-14 19:08:47 -08:00
core.c libnvdimm for 5.5 2019-12-01 18:43:25 -08:00
dax_devs.c libnvdimm: Move attribute groups to device type 2019-11-17 09:17:38 -08:00
dimm_devs.c libnvdimm: Move nvdimm_attribute_group to device_type 2019-11-19 09:52:12 -08:00
dimm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
e820.c libnvdimm: Move nvdimm_bus_attribute_group to device_type 2019-11-19 09:52:12 -08:00
Kconfig lib: Uplevel the pmem "region" ida to a global allocator 2019-11-07 15:44:29 +01:00
label.c libnvdimm/label: Remove the dpa align check 2019-09-05 16:11:14 -07:00
label.h libnvdimm/label: Replace zero-length array with flexible-array member 2020-03-30 12:37:09 -07:00
Makefile libnvdimm: Enable unit test infrastructure compile checks 2019-09-07 04:28:05 -03:00
namespace_devs.c libnvdimm: Simplify root read-only definition for the 'resource' attribute 2019-11-19 09:52:12 -08:00
nd_virtio.c virtio_pmem: fix sparse warning 2019-07-16 19:44:26 -07:00
nd-core.h libnvdimm for 5.5 2019-12-01 18:43:25 -08:00
nd.h libnvdimm/region: Replace zero-length array with flexible-array member 2020-03-30 12:37:29 -07:00
of_pmem.c libnvdimm: Update persistence domain value for of_pmem and papr_scm device 2020-03-31 14:42:28 -07:00
pfn_devs.c libnvdimm: Simplify root read-only definition for the 'resource' attribute 2019-11-19 09:52:12 -08:00
pfn.h libnvdimm/pfn_dev: Add page size and struct page size to pfn superblock 2019-09-05 16:11:14 -07:00
pmem.c dax: Move mandatory ->zero_page_range() check in alloc_dax() 2020-04-02 19:15:03 -07:00
pmem.h libnvdimm, pmem: Restore page attributes when clearing errors 2018-08-20 09:22:45 -07:00
region_devs.c libnvdimm for 5.5 2019-12-01 18:43:25 -08:00
region.c libnvdimm/region: Initialize bad block for volatile namespaces 2019-09-24 10:27:51 -07:00
security.c libnvdimm: prevent nvdimm from requesting key when security is disabled 2019-09-24 10:30:10 -07:00
virtio_pmem.c virtio-pmem: Add virtio pmem driver 2019-07-05 15:19:10 -07:00
virtio_pmem.h virtio-pmem: Add virtio pmem driver 2019-07-05 15:19:10 -07:00