Yinghai Lu 0b8f1efad3 sparse irq_desc[] array: core kernel and x86 changes ... Impact: new feature Problem on distro kernels: irq_desc[NR_IRQS] takes megabytes of RAM with NR_CPUS set to large values. The goal is to be able to scale up to much larger NR_IRQS value without impacting the (important) common case. To solve this, we generalize irq_desc[NR_IRQS] to an (optional) array of irq_desc pointers. When CONFIG_SPARSE_IRQ=y is used, we use kzalloc_node to get irq_desc, this also makes the IRQ descriptors NUMA-local (to the site that calls request_irq()). This gets rid of the irq_cfg[] static array on x86 as well: irq_cfg now uses desc->chip_data for x86 to store irq_cfg. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2008-12-08 14:31:51 +01:00
..
autoprobe.c	sparse irq_desc[] array: core kernel and x86 changes	2008-12-08 14:31:51 +01:00
chip.c	sparse irq_desc[] array: core kernel and x86 changes	2008-12-08 14:31:51 +01:00
devres.c
handle.c	sparse irq_desc[] array: core kernel and x86 changes	2008-12-08 14:31:51 +01:00
internals.h	genirq: keep affinities set from userspace across free/request_irq()	2008-11-09 22:23:49 +01:00
Makefile
manage.c	genirq: __irq_set_trigger: change pr_warning to pr_debug	2008-11-13 11:59:48 +01:00
migration.c	genirq: keep affinities set from userspace across free/request_irq()	2008-11-09 22:23:49 +01:00
proc.c	sparse irq_desc[] array: core kernel and x86 changes	2008-12-08 14:31:51 +01:00
resend.c	generic: sparse irqs: use irq_desc() together with dyn_array, instead of irq_desc[]	2008-10-16 16:52:29 +02:00
spurious.c	sparse irq_desc[] array: core kernel and x86 changes	2008-12-08 14:31:51 +01:00