]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
cpumask: update irq_desc to use cpumask_var_t
authorMike Travis <travis@sgi.com>
Sun, 11 Jan 2009 05:58:08 +0000 (21:58 -0800)
committerIngo Molnar <mingo@elte.hu>
Sun, 11 Jan 2009 18:12:46 +0000 (19:12 +0100)
commit7f7ace0cda64c99599c23785f8979a072e118058
tree13f2826e64e09ebaef94a3e7fd9c21cfbd31ec3f
parentc59765042f53a79a7a65585042ff463b69cb248c
cpumask: update irq_desc to use cpumask_var_t

Impact: reduce memory usage, use new cpumask API.

Replace the affinity and pending_masks with cpumask_var_t's.  This adds
to the significant size reduction done with the SPARSE_IRQS changes.

The added functions (init_alloc_desc_masks & init_copy_desc_masks) are
in the include file so they can be inlined (and optimized out for the
!CONFIG_CPUMASKS_OFFSTACK case.)  [Naming chosen to be consistent with
the other init*irq functions, as well as the backwards arg declaration
of "from, to" instead of the more common "to, from" standard.]

Includes a slight change to the declaration of struct irq_desc to embed
the pending_mask within ifdef(CONFIG_SMP) to be consistent with other
references, and some small changes to Xen.

Tested: sparse/non-sparse/cpumask_offstack/non-cpumask_offstack/nonuma/nosmp on x86_64

Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: virtualization@lists.osdl.org
Cc: xen-devel@lists.xensource.com
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
arch/x86/kernel/io_apic.c
arch/x86/kernel/irq_32.c
arch/x86/kernel/irq_64.c
drivers/xen/events.c
include/linux/irq.h
kernel/irq/chip.c
kernel/irq/handle.c
kernel/irq/manage.c
kernel/irq/migration.c
kernel/irq/numa_migrate.c
kernel/irq/proc.c