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| author | Dan Williams <dan.j.williams@intel.com> | 2016-06-06 17:42:38 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-07-07 17:11:09 -0700 |
| commit | 29b9aa0aa3837c93ecd804dd3ada39b8cc75607d (patch) | |
| tree | c3ee3dbe22fb1ec4a71ff887f382b3eac815d4b3 /drivers/nvdimm/nd-core.h | |
| parent | 81ed4e3670853e4cebad88aeffc0ba1d90d4d6ed (diff) | |
| download | linux-29b9aa0aa3837c93ecd804dd3ada39b8cc75607d.tar.bz2 | |
libnvdimm: introduce devm_nvdimm_memremap(), convert nfit_spa_map() users
In preparation for generically mapping flush hint addresses for both the
BLK and PMEM use case, provide a generic / reference counted mapping
api. Given the fact that a dimm may belong to multiple regions (PMEM
and BLK), the flush hint addresses need to be held valid as long as any
region associated with the dimm is active. This is similar to the
existing BLK-region case where multiple BLK-regions may share an
aperture mapping. Up-level this shared / reference-counted mapping
capability from the nfit driver to a core nvdimm capability.
This eliminates the need for the nd_blk_region.disable() callback. Note
that the removal of nfit_spa_map() and related infrastructure is
deferred to a later patch.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/nd-core.h')
| -rw-r--r-- | drivers/nvdimm/nd-core.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h index 284cdaa268cf..790b62cc81ed 100644 --- a/drivers/nvdimm/nd-core.h +++ b/drivers/nvdimm/nd-core.h @@ -31,6 +31,7 @@ struct nvdimm_bus { struct device dev; int id, probe_active; struct list_head poison_list; + struct list_head mapping_list; struct mutex reconfig_mutex; }; |