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| author | Dan Williams | 2015-08-01 08:16:37 +0200 |
|---|---|---|
| committer | Dan Williams | 2015-08-29 05:40:04 +0200 |
| commit | 32ab0a3f51701cb37ab960635254d5f84ec3de0a (patch) | |
| tree | 5e6ff1b400f4f1c42c7aecc76234f007d70e6a25 /drivers/nvdimm/Kconfig | |
| parent | libnvdimm, pfn: 'struct page' provider infrastructure (diff) | |
| download | kernel-qcow2-linux-32ab0a3f51701cb37ab960635254d5f84ec3de0a.tar.gz kernel-qcow2-linux-32ab0a3f51701cb37ab960635254d5f84ec3de0a.tar.xz kernel-qcow2-linux-32ab0a3f51701cb37ab960635254d5f84ec3de0a.zip | |
libnvdimm, pmem: 'struct page' for pmem
Enable the pmem driver to handle PFN device instances. Attaching a pmem
namespace to a pfn device triggers the driver to allocate and initialize
struct page entries for pmem. Memory capacity for this allocation comes
exclusively from RAM for now which is suitable for low PMEM to RAM
ratios. This mechanism will be expanded later for setting an "allocate
from PMEM" policy.
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/Kconfig')
| -rw-r--r-- | drivers/nvdimm/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvdimm/Kconfig b/drivers/nvdimm/Kconfig index ace25b53b755..53c11621d5b1 100644 --- a/drivers/nvdimm/Kconfig +++ b/drivers/nvdimm/Kconfig @@ -76,6 +76,7 @@ config ND_PFN config NVDIMM_PFN bool "PFN: Map persistent (device) memory" default LIBNVDIMM + depends on ZONE_DEVICE select ND_CLAIM help Map persistent memory, i.e. advertise it to the memory |