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Subject[PATCH 3/3] stack overflow safe kdump (2.6.18-rc1-i386) - ipi_use_safe_smp_processor_id
FromFernando Luis Vázquez Cao <>
DateMon, 10 Jul 2006 16:54:01 +0900
Substitute "smp_processor_id" with the stack overflow-safe
"safe_smp_processor_id" in the send IPI functions, since
they are used after a crash to shutdown CPUs.

Signed-off-by: Fernando Vazquez <fernando@intellilink.co.jp>
---
diff -urNp linux-2.6.18-rc1/include/asm-i386/mach-bigsmp/mach_ipi.h linux-2.6.18-rc1-sof/include/asm-i386/mach-bigsmp/mach_ipi.h
--- linux-2.6.18-rc1/include/asm-i386/mach-bigsmp/mach_ipi.h	2006-06-18 10:49:35.000000000 +0900
+++ linux-2.6.18-rc1-sof/include/asm-i386/mach-bigsmp/mach_ipi.h	2006-07-10 16:13:33.000000000 +0900
@@ -11,7 +11,7 @@ static inline void send_IPI_mask(cpumask
 static inline void send_IPI_allbutself(int vector)
 {
 	cpumask_t mask = cpu_online_map;
-	cpu_clear(smp_processor_id(), mask);
+	cpu_clear(safe_smp_processor_id(), mask);
 
 	if (!cpus_empty(mask))
 		send_IPI_mask(mask, vector);
diff -urNp linux-2.6.18-rc1/include/asm-i386/mach-default/mach_ipi.h linux-2.6.18-rc1-sof/include/asm-i386/mach-default/mach_ipi.h
--- linux-2.6.18-rc1/include/asm-i386/mach-default/mach_ipi.h	2006-07-10 11:00:05.000000000 +0900
+++ linux-2.6.18-rc1-sof/include/asm-i386/mach-default/mach_ipi.h	2006-07-10 16:14:15.000000000 +0900
@@ -19,7 +19,7 @@ static inline void __local_send_IPI_allb
 	if (no_broadcast || vector == NMI_VECTOR) {
 		cpumask_t mask = cpu_online_map;
 
-		cpu_clear(smp_processor_id(), mask);
+		cpu_clear(safe_smp_processor_id(), mask);
 		send_IPI_mask(mask, vector);
 	} else
 		__send_IPI_shortcut(APIC_DEST_ALLBUT, vector);
diff -urNp linux-2.6.18-rc1/include/asm-i386/mach-es7000/mach_ipi.h linux-2.6.18-rc1-sof/include/asm-i386/mach-es7000/mach_ipi.h
--- linux-2.6.18-rc1/include/asm-i386/mach-es7000/mach_ipi.h	2006-06-18 10:49:35.000000000 +0900
+++ linux-2.6.18-rc1-sof/include/asm-i386/mach-es7000/mach_ipi.h	2006-07-10 16:14:51.000000000 +0900
@@ -11,7 +11,7 @@ static inline void send_IPI_mask(cpumask
 static inline void send_IPI_allbutself(int vector)
 {
 	cpumask_t mask = cpu_online_map;
-	cpu_clear(smp_processor_id(), mask);
+	cpu_clear(safe_smp_processor_id(), mask);
 	if (!cpus_empty(mask))
 		send_IPI_mask(mask, vector);
 }
diff -urNp linux-2.6.18-rc1/include/asm-i386/mach-numaq/mach_ipi.h linux-2.6.18-rc1-sof/include/asm-i386/mach-numaq/mach_ipi.h
--- linux-2.6.18-rc1/include/asm-i386/mach-numaq/mach_ipi.h	2006-06-18 10:49:35.000000000 +0900
+++ linux-2.6.18-rc1-sof/include/asm-i386/mach-numaq/mach_ipi.h	2006-07-10 16:15:26.000000000 +0900
@@ -11,7 +11,7 @@ static inline void send_IPI_mask(cpumask
 static inline void send_IPI_allbutself(int vector)
 {
 	cpumask_t mask = cpu_online_map;
-	cpu_clear(smp_processor_id(), mask);
+	cpu_clear(safe_smp_processor_id(), mask);
 
 	if (!cpus_empty(mask))
 		send_IPI_mask(mask, vector);
diff -urNp linux-2.6.18-rc1/include/asm-i386/mach-summit/mach_ipi.h linux-2.6.18-rc1-sof/include/asm-i386/mach-summit/mach_ipi.h
--- linux-2.6.18-rc1/include/asm-i386/mach-summit/mach_ipi.h	2006-06-18 10:49:35.000000000 +0900
+++ linux-2.6.18-rc1-sof/include/asm-i386/mach-summit/mach_ipi.h	2006-07-10 16:16:06.000000000 +0900
@@ -11,7 +11,7 @@ static inline void send_IPI_mask(cpumask
 static inline void send_IPI_allbutself(int vector)
 {
 	cpumask_t mask = cpu_online_map;
-	cpu_clear(smp_processor_id(), mask);
+	cpu_clear(safe_smp_processor_id(), mask);
 
 	if (!cpus_empty(mask))
 		send_IPI_mask(mask, vector);

-
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