linux-toradex.git/lib/cpu_rmap.c, branch v3.0-rc3 Linux kernel for Apalis and Colibri modules lib: cpu_rmap: CPU affinity reverse-mapping 2011-01-24T22:51:56+00:00 Ben Hutchings bhutchings@solarflare.com 2011-01-19T11:03:25+00:00 c39649c331c70952700f99832b03f87e9d7f5b4b When initiating I/O on a multiqueue and multi-IRQ device, we may want to select a queue for which the response will be handled on the same or a nearby CPU. This requires a reverse-map of IRQ affinity. Add library functions to support a generic reverse-mapping from CPUs to objects with affinity and the specific case where the objects are IRQs. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
When initiating I/O on a multiqueue and multi-IRQ device, we may want
to select a queue for which the response will be handled on the same
or a nearby CPU.  This requires a reverse-map of IRQ affinity.  Add
library functions to support a generic reverse-mapping from CPUs to
objects with affinity and the specific case where the objects are
IRQs.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>