[PATCH 3/3] stack overflow safe kdump (2.6.18-rc1-i386) -ipi_use_safe_smp_processor_id
From: Fernando Luis Vázquez Cao
Date: Mon Jul 10 2006 - 03:52:21 EST
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@xxxxxxxxxxxxxxxxx>
---
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);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/