diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index 880c808..22da133 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -304,11 +304,11 @@
 	int irq;
 
 	irq = iic_ipi_to_irq(ipi);
-	/* IPIs are marked SA_INTERRUPT as they must run with irqs
+	/* IPIs are marked IRQF_DISABLED as they must run with irqs
 	 * disabled */
 	get_irq_desc(irq)->chip = &iic_pic;
 	get_irq_desc(irq)->status |= IRQ_PER_CPU;
-	request_irq(irq, iic_ipi_action, SA_INTERRUPT, name, NULL);
+	request_irq(irq, iic_ipi_action, IRQF_DISABLED, name, NULL);
 }
 
 void iic_request_IPIs(void)
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index b306723..656c1ef 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -274,19 +274,19 @@
 
 	snprintf(spu->irq_c0, sizeof (spu->irq_c0), "spe%02d.0", spu->number);
 	ret = request_irq(irq_base + spu->isrc,
-		 spu_irq_class_0, SA_INTERRUPT, spu->irq_c0, spu);
+		 spu_irq_class_0, IRQF_DISABLED, spu->irq_c0, spu);
 	if (ret)
 		goto out;
 
 	snprintf(spu->irq_c1, sizeof (spu->irq_c1), "spe%02d.1", spu->number);
 	ret = request_irq(irq_base + IIC_CLASS_STRIDE + spu->isrc,
-		 spu_irq_class_1, SA_INTERRUPT, spu->irq_c1, spu);
+		 spu_irq_class_1, IRQF_DISABLED, spu->irq_c1, spu);
 	if (ret)
 		goto out1;
 
 	snprintf(spu->irq_c2, sizeof (spu->irq_c2), "spe%02d.2", spu->number);
 	ret = request_irq(irq_base + 2*IIC_CLASS_STRIDE + spu->isrc,
-		 spu_irq_class_2, SA_INTERRUPT, spu->irq_c2, spu);
+		 spu_irq_class_2, IRQF_DISABLED, spu->irq_c2, spu);
 	if (ret)
 		goto out2;
 	goto out;
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 532bce5..c9b09a9e 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -381,7 +381,7 @@
 
 static struct irqaction gatwick_cascade_action = {
 	.handler	= gatwick_action,
-	.flags		= SA_INTERRUPT,
+	.flags		= IRQF_DISABLED,
 	.mask		= CPU_MASK_NONE,
 	.name		= "cascade",
 };
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 63affcb..827b712 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -377,7 +377,7 @@
 
 static struct irqaction psurge_irqaction = {
 	.handler = psurge_primary_intr,
-	.flags = SA_INTERRUPT,
+	.flags = IRQF_DISABLED,
 	.mask = CPU_MASK_NONE,
 	.name = "primary IPI",
 };
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 4d935d0..2ffebe31 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -59,7 +59,7 @@
 
 /*
  * Mark IPIs as higher priority so we can take them inside interrupts that
- * arent marked SA_INTERRUPT
+ * arent marked IRQF_DISABLED
  */
 #define IPI_PRIORITY		4
 
@@ -586,9 +586,12 @@
 {
 	virt_irq_to_real_map[XICS_IPI] = XICS_IPI;
 
-	/* IPIs are marked SA_INTERRUPT as they must run with irqs disabled */
-	request_irq(irq_offset_up(XICS_IPI), xics_ipi_action, SA_INTERRUPT,
-		    "IPI", NULL);
+	/*
+	 * IPIs are marked IRQF_DISABLED as they must run with irqs
+	 * disabled
+	 */
+	request_irq(irq_offset_up(XICS_IPI), xics_ipi_action,
+		    IRQF_DISABLED, "IPI", NULL);
 	get_irq_desc(irq_offset_up(XICS_IPI))->status |= IRQ_PER_CPU;
 }
 #endif
diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
index 2bff30f..1a3ef1a 100644
--- a/arch/powerpc/sysdev/i8259.c
+++ b/arch/powerpc/sysdev/i8259.c
@@ -167,7 +167,7 @@
 
 static struct irqaction i8259_irqaction = {
 	.handler = no_action,
-	.flags = SA_INTERRUPT,
+	.flags = IRQF_DISABLED,
 	.mask = CPU_MASK_NONE,
 	.name = "82c59 secondary cascade",
 };
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 63ff895..7e46935 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -540,7 +540,7 @@
 	 * IPIs are marked IRQ_PER_CPU. This has the side effect of
 	 * preventing the IRQ_PENDING/IRQ_INPROGRESS logic from
 	 * applying to them. We EOI them late to avoid re-entering.
-	 * We mark IPI's with SA_INTERRUPT as they must run with
+	 * We mark IPI's with IRQF_DISABLED as they must run with
 	 * irqs disabled.
 	 */
 	mpic_eoi(mpic);
@@ -1027,14 +1027,17 @@
 	
 	printk("requesting IPIs ... \n");
 
-	/* IPIs are marked SA_INTERRUPT as they must run with irqs disabled */
-	request_irq(mpic->ipi_offset+0, mpic_ipi_action, SA_INTERRUPT,
+	/*
+	 * IPIs are marked IRQF_DISABLED as they must run with irqs
+	 * disabled
+	 */
+	request_irq(mpic->ipi_offset+0, mpic_ipi_action, IRQF_DISABLED,
 		    "IPI0 (call function)", mpic);
-	request_irq(mpic->ipi_offset+1, mpic_ipi_action, SA_INTERRUPT,
+	request_irq(mpic->ipi_offset+1, mpic_ipi_action, IRQF_DISABLED,
 		   "IPI1 (reschedule)", mpic);
-	request_irq(mpic->ipi_offset+2, mpic_ipi_action, SA_INTERRUPT,
+	request_irq(mpic->ipi_offset+2, mpic_ipi_action, IRQF_DISABLED,
 		   "IPI2 (unused)", mpic);
-	request_irq(mpic->ipi_offset+3, mpic_ipi_action, SA_INTERRUPT,
+	request_irq(mpic->ipi_offset+3, mpic_ipi_action, IRQF_DISABLED,
 		   "IPI3 (debugger break)", mpic);
 
 	printk("IPIs requested... \n");
diff --git a/include/asm-powerpc/floppy.h b/include/asm-powerpc/floppy.h
index 9c8d91b..fd242a2 100644
--- a/include/asm-powerpc/floppy.h
+++ b/include/asm-powerpc/floppy.h
@@ -27,7 +27,7 @@
 #define fd_disable_irq()        disable_irq(FLOPPY_IRQ)
 #define fd_cacheflush(addr,size) /* nothing */
 #define fd_request_irq()        request_irq(FLOPPY_IRQ, floppy_interrupt, \
-					    SA_INTERRUPT, "floppy", NULL)
+					    IRQF_DISABLED, "floppy", NULL)
 #define fd_free_irq()           free_irq(FLOPPY_IRQ, NULL);
 
 #ifdef CONFIG_PCI
diff --git a/include/asm-powerpc/signal.h b/include/asm-powerpc/signal.h
index a4d8f86..a8c7bab 100644
--- a/include/asm-powerpc/signal.h
+++ b/include/asm-powerpc/signal.h
@@ -63,7 +63,6 @@
  * SA_FLAGS values:
  *
  * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
- * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
  * SA_RESTART flag to get restarting signals (which were the default long ago)
  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  * SA_RESETHAND clears the handler when the signal is delivered.
@@ -83,7 +82,6 @@
 
 #define SA_NOMASK	SA_NODEFER
 #define SA_ONESHOT	SA_RESETHAND
-#define SA_INTERRUPT	0x20000000u /* dummy -- ignored */
 
 #define SA_RESTORER	0x04000000U