Files
android_kernel_xiaomi_sm8450/arch/ia64/include/asm
Matias Bjørling ef78e5ec92 ia64: export node_distance function
The numa_slit variable used by node_distance is available to a
module as long as it is linked at compile-time. However, it is
not available to loadable modules. Leading to errors such as:

  ERROR: "numa_slit" [drivers/nvme/host/nvme-core.ko] undefined!

The error above is caused by the nvme multipath code that makes
use of node_distance for its path calculation. When the patch was
added, the lightnvm subsystem would select nvme and always compile
it in, leading to the node_distance call to always succeed.
However, when this requirement was removed, nvme could be compiled
in as a module, which exposed this bug.

This patch extracts node_distance to a function and exports it.
Since ACPI is depending on node_distance being a simple lookup to
numa_slit, the previous behavior is exposed as slit_distance and its
users updated.

Fixes: f333444708 "nvme: take node locality into account when selecting a path"
Fixes: 73569e1103 "lightnvm: remove dependencies on BLK_DEV_NVME and PCI"
Signed-off-by: Matias Bjøring <mb@lightnvm.io>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-11-26 18:30:40 -08:00
..
2015-06-10 14:26:32 -07:00
2018-02-21 15:35:43 -08:00
2016-08-07 23:55:50 -04:00
2018-08-20 12:22:48 -07:00
2018-04-19 13:28:51 +02:00
2010-06-09 11:12:36 +02:00
2010-05-18 14:45:52 -07:00
2018-11-26 18:30:40 -08:00
2018-05-07 07:15:41 +02:00
2018-10-31 08:54:12 -07:00