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authorDan Williams <dan.j.williams@intel.com>2015-06-25 11:20:04 +0300
committerDan Williams <dan.j.williams@intel.com>2015-06-25 11:20:04 +0300
commit8c2f7e8658df1d3b7cbfa62706941d14c715823a (patch)
treeac93512841113f4d1d7a38d788ec73bb21e2d605 /drivers/nvdimm/Makefile
parent0ba1c634892b3590779803a701bcb82e8c32cc7a (diff)
downloadlinux-8c2f7e8658df1d3b7cbfa62706941d14c715823a.tar.xz
libnvdimm: infrastructure for btt devices
NVDIMM namespaces, in addition to accepting "struct bio" based requests, also have the capability to perform byte-aligned accesses. By default only the bio/block interface is used. However, if another driver can make effective use of the byte-aligned capability it can claim namespace interface and use the byte-aligned ->rw_bytes() interface. The BTT driver is the initial first consumer of this mechanism to allow adding atomic sector update semantics to a pmem or blk namespace. This patch is the sysfs infrastructure to allow configuring a BTT instance for a namespace. Enabling that BTT and performing i/o is in a subsequent patch. Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/Makefile')
-rw-r--r--drivers/nvdimm/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvdimm/Makefile b/drivers/nvdimm/Makefile
index abce98f87f16..6085b4bd7312 100644
--- a/drivers/nvdimm/Makefile
+++ b/drivers/nvdimm/Makefile
@@ -11,3 +11,4 @@ libnvdimm-y += region_devs.o
libnvdimm-y += region.o
libnvdimm-y += namespace_devs.o
libnvdimm-y += label.o
+libnvdimm-$(CONFIG_BTT) += btt_devs.o