i386: fix early usage of atomic_add_return and local_add_return on real i386

03491c92 · Thomas Gleixner <[email protected]> · 2007-05-23 13:58:19 -07:00

The check (boot_cpu_data.x86 == 3) in atomic_add_return() and
local_add_return() fails, when those operations are used before
boot_cpu_data is filled in.

Change the check to (boot_cpu_data.x86 <= 3) to fix this.

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Commit: 03491c92932b8d2dab1bb298e0122ff6d39680af
Parents: 98d82567

Changes

2 files changed · +2 −2

File	Status	Add	Del	Content
include/asm-i386/atomic.h	modified	+1	−1	View file
include/asm-i386/local.h	modified	+1	−1	View file

include/asm-i386/atomic.h

View file

diff --git a/include/asm-i386/atomic.h b/include/asm-i386/atomic.h
index 0baa2f8..437aac8 100644
--- a/include/asm-i386/atomic.h
+++ b/include/asm-i386/atomic.h
@@ -182,7 +182,7 @@ static __inline__ int atomic_add_return(int i, atomic_t *v)
 	int __i;
 #ifdef CONFIG_M386
 	unsigned long flags;
-	if(unlikely(boot_cpu_data.x86==3))
+	if(unlikely(boot_cpu_data.x86 <= 3))
 		goto no_xadd;
 #endif
 	/* Modern 486+ processor */

include/asm-i386/local.h

View file

diff --git a/include/asm-i386/local.h b/include/asm-i386/local.h
index e13d3e9..6e85975 100644
--- a/include/asm-i386/local.h
+++ b/include/asm-i386/local.h
@@ -135,7 +135,7 @@ static __inline__ long local_add_return(long i, local_t *l)
 	long __i;
 #ifdef CONFIG_M386
 	unsigned long flags;
-	if(unlikely(boot_cpu_data.x86==3))
+	if(unlikely(boot_cpu_data.x86 <= 3))
 		goto no_xadd;
 #endif
 	/* Modern 486+ processor */