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Yinghai Lu 3ddfda1186 generic: add dyn_array support 
Allow crazy big arrays via bootmem at init stage.
Architectures use CONFIG_HAVE_DYN_ARRAY to enable it.

usage:

| static struct irq_desc irq_desc_init __initdata = {
|        .status = IRQ_DISABLED,
|        .chip = &no_irq_chip,
|        .handle_irq = handle_bad_irq,
|        .depth = 1,
|        .lock = __SPIN_LOCK_UNLOCKED(irq_desc->lock),
| #ifdef CONFIG_SMP
|        .affinity = CPU_MASK_ALL
| #endif
| };
|
| static void __init init_work(void *data)
| {
|        struct dyn_array *da = data;
|        struct  irq_desc *desc;
|        int i;
|
|        desc = *da->name;
|
|        for (i = 0; i < *da->nr; i++)
|                memcpy(&desc[i], &irq_desc_init, sizeof(struct irq_desc));
| }
|
| struct irq_desc *irq_desc;
| DEFINE_DYN_ARRAY(irq_desc, sizeof(struct irq_desc), nr_irqs, PAGE_SIZE, init_work);

after pre_alloc_dyn_array() after setup_arch(), the array is ready to be
used.

Via this facility we can replace irq_desc[NR_IRQS] array with dyn_array
irq_desc[nr_irqs].

v2: remove _nopanic in pre_alloc_dyn_array()

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 		2008-10-16 16:52:02 +02:00
..
acpi ACPICA: Additional error checking for pathname utilities 2008-08-15 02:12:16 +02:00
asm-arm [ARM] 5191/1: ARM: remove CVS keywords 2008-08-16 20:01:18 +01:00
asm-cris Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
asm-frv FRV: Provide ioremap_wc() for FRV 2008-08-20 13:19:52 -07:00
asm-generic generic: add dyn_array support 2008-10-16 16:52:02 +02:00
asm-m32r Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
asm-m68k m68k: remove the dead PCI code 2008-10-14 10:23:27 -07:00
asm-mips MIPS: Move headfiles to new location below arch/mips/include 2008-10-11 16:18:52 +01:00
asm-mn10300 MN10300: Supply ioremap_wc() for MN10300 2008-08-20 13:19:51 -07:00
asm-parisc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-10-13 17:13:56 +01:00
asm-um net: Fix build with ARCH=um 2008-09-19 12:44:54 -07:00
asm-x86 x86: remove irq_vectors_limits 2008-10-16 16:52:02 +02:00
asm-xtensa Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
crypto crypto: rng - RNG interface and implementation 2008-08-29 15:50:04 +10:00
drm
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keys
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linux generic: add dyn_array support 2008-10-16 16:52:02 +02:00
math-emu
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media V4L/DVB (9168): Add support for MSI TV@nywhere Plus remote 2008-10-13 09:57:34 -02:00
mtd
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net Merge branch 'next' into for-linus 2008-10-13 09:35:14 +11:00
pcmcia pcmcia: ioctl-internal definitions 2008-08-31 16:00:42 +02:00
rdma RDMA/cma: Remove padding arrays by using struct sockaddr_storage 2008-08-04 11:02:14 -07:00
rxrpc
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scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-10 10:53:26 -07:00
sound Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 2008-10-13 14:03:59 -07:00
video Merge branch 'pxa-all' into devel 2008-10-09 21:33:02 +01:00
xen xen: remove unused balloon.h 2008-10-03 10:04:10 +02:00
Kbuild
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