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[Xen-changelog] Add back missing part of XenLinux acpi/boot.c.

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Subject:	[Xen-changelog] Add back missing part of XenLinux acpi/boot.c.
From:	Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date:	Wed, 31 Aug 2005 08:46:10 +0000
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# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 331c256d8e5c31fba77d3046817aae49a126d5c2
# Parent  38312fe7ec38dab85c5ac7158efd776bacb44717
Add back missing part of XenLinux acpi/boot.c.
This fixes bug #76 (IRQ sharing fails under load).
Signed-off-by: Natasha Jarymowycz <natasha@xxxxxxxxxx>

diff -r 38312fe7ec38 -r 331c256d8e5c 
linux-2.6-xen-sparse/arch/xen/i386/kernel/acpi/boot.c
--- a/linux-2.6-xen-sparse/arch/xen/i386/kernel/acpi/boot.c     Wed Aug 31 
08:27:34 2005
+++ b/linux-2.6-xen-sparse/arch/xen/i386/kernel/acpi/boot.c     Wed Aug 31 
08:43:57 2005
@@ -468,6 +468,18 @@
 {
        unsigned int irq;
        unsigned int plat_gsi = gsi;
+
+#ifdef CONFIG_PCI
+       /*
+        * Make sure all (legacy) PCI IRQs are set as level-triggered.
+        */
+       if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) {
+               extern void eisa_set_level_irq(unsigned int irq);
+
+               if (edge_level == ACPI_LEVEL_SENSITIVE)
+                               eisa_set_level_irq(gsi);
+       }
+#endif
 
 #ifdef CONFIG_X86_IO_APIC
        if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) {

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