linux_dsm_epyc7002/arch/x86
Mike Travis 7f7ace0cda 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>
2009-01-11 19:12:46 +01:00
..
boot Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core 2008-12-23 16:27:23 +01:00
configs x86: revert CONFIG_RELOCATABLE=y defconfig change 2008-12-18 20:57:29 +01:00
crypto crypto: crc32c-intel - Switch to shash 2008-12-25 11:01:37 +11:00
ia32 x86: introducing asm/sys_ia32.h 2008-12-29 13:18:40 +01:00
include/asm Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-10 06:13:09 -08:00
kernel cpumask: update irq_desc to use cpumask_var_t 2009-01-11 19:12:46 +01:00
kvm KVM: change KVM to use IOMMU API 2009-01-03 14:11:07 +01:00
lguest Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-02 11:44:09 -08:00
lib Merge commit 'v2.6.28-rc2' into core/locking 2008-10-28 16:54:49 +01:00
mach-default x86: mach-default setup.c cleanups 2008-12-29 13:18:39 +01:00
mach-generic x86: rename all fields of mpc_table mpc_X to X 2009-01-05 14:08:34 +01:00
mach-rdc321x removed unused #include <linux/version.h>'s 2008-08-23 12:14:12 -07:00
mach-voyager x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids 2009-01-03 19:00:55 +01:00
math-emu
mm Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-10 06:13:09 -08:00
oprofile Merge branch 'oprofile/ring_buffer' into oprofile/oprofile-for-tip 2009-01-08 14:27:34 +01:00
pci x86/PCI: Do not use interrupt links for devices using MSI-X 2009-01-07 11:13:25 -08:00
power x86, hibernate: fix breakage on x86_32 with CONFIG_NUMA set 2008-11-12 23:28:51 +01:00
scripts allow stripping of generated symbols under CONFIG_KALLSYMS_ALL 2008-12-19 22:47:10 +01:00
vdso Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2008-12-28 12:33:21 -08:00
video
xen Merge branch 'cputime' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2009-01-03 11:56:24 -08:00
Kconfig x86: offer frame pointers in all build modes 2009-01-07 11:18:59 +01:00
Kconfig.cpu X86_DEBUGCTLMSR won't work on uml 2009-01-05 17:41:45 -08:00
Kconfig.debug Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-12-28 12:21:10 -08:00
Makefile x86, um: ... and asm-x86 move 2008-10-22 22:55:20 -07:00
Makefile_32.cpu x86: merge winchip-2 and winchip-2a cpu choices 2008-10-13 10:22:48 +02:00