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linux/drivers/nvdimm
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Dave Jiang 5fdf8e5ba5 libnvdimm: re-enable deep flush for pmem devices via fsync() 
Re-enable deep flush so that users always have a way to be sure that a
write makes it all the way out to media. Writes from the PMEM driver
always arrive at the NVDIMM since movnt is used to bypass the cache, and
the driver relies on the ADR (Asynchronous DRAM Refresh) mechanism to
flush write buffers on power failure. The Deep Flush mechanism is there
to explicitly write buffers to protect against (rare) ADR failure.  This
change prevents a regression in deep flush behavior so that applications
can continue to depend on fsync() as a mechanism to trigger deep flush
in the filesystem-DAX case.

Fixes: 06e8ccdab1 ("acpi: nfit: Add support for detect platform CPU cache...")
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-03-02 19:31:40 -08:00
..
badrange.c libnvdimm, badrange: remove a WARN for list_empty 2017-11-02 10:42:30 -07:00
blk.c block: guard bvec iteration logic 2017-07-03 16:56:26 -06:00
btt_devs.c libnvdimm: rename nd_sector_size_{show,store} to nd_size_select_{show,store} 2017-08-11 17:36:54 -07:00
btt.c Merge branch 'for-4.16/dax' into libnvdimm-for-next 2018-02-03 00:26:10 -07:00
btt.h libnvdimm, btt: Fix an incompatibility in the log layout 2017-12-21 14:59:27 -08:00
bus.c nfit, libnvdimm: deprecate the generic SMART ioctl 2017-12-04 10:19:20 -08:00
claim.c libnvdimm, btt: rework error clearing 2017-08-31 15:05:10 -07:00
core.c libnvdimm: move poison list functions to a new 'badrange' file 2017-11-02 10:42:30 -07:00
dax_devs.c Merge branch 'for-4.13/dax' into libnvdimm-for-next 2017-07-03 16:54:58 -07:00
dimm_devs.c libnvdimm: introduce 'flags' attribute for DIMM 'lock' and 'alias' status 2017-10-07 10:04:06 -07:00
dimm.c acpi, nfit: add support for the _LSI, _LSR, and _LSW label methods 2017-10-07 10:03:40 -07:00
e820.c libnvdimm, e820: use module_platform_driver 2016-12-05 08:52:21 -08:00
Kconfig treewide: Fix typos in Kconfig 2017-10-12 15:42:00 +02:00
label.c libnvdimm, namespace: fix label initialization to use valid seq numbers 2017-09-28 09:13:06 -07:00
label.h libnvdimm, btt: BTT updates for UEFI 2.7 format 2017-06-29 13:50:38 -07:00
Makefile libnvdimm for 4.15 2017-11-17 09:51:57 -08:00
namespace_devs.c libnvdimm, namespace: remove redundant initialization of 'nd_mapping' 2018-02-03 00:23:01 -07:00
nd-core.h libnvdimm: move poison list functions to a new 'badrange' file 2017-11-02 10:42:30 -07:00
nd.h memremap: change devm_memremap_pages interface to use struct dev_pagemap 2018-01-08 11:46:23 -08:00
pfn_devs.c memremap: change devm_memremap_pages interface to use struct dev_pagemap 2018-01-08 11:46:23 -08:00
pfn.h
pmem.c libnvdimm: re-enable deep flush for pmem devices via fsync() 2018-03-02 19:31:40 -08:00
pmem.h memremap: change devm_memremap_pages interface to use struct dev_pagemap 2018-01-08 11:46:23 -08:00
region_devs.c libnvdimm: expose platform persistence attribute for nd_region 2018-02-01 15:01:15 -07:00
region.c libnvdimm, region, pmem: fix 'badblocks' sysfs_get_dirent() reference lifetime 2017-06-30 18:56:03 -07:00