The patch titled
Let smp_call_function_single return -EBUSY on UP
has been removed from the -mm tree. Its filename was
let-smp_call_function_single-return-ebusy-on-up.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: Let smp_call_function_single return -EBUSY on UP
From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
All architectures that have an implementation of smp_call_function_single
let it return -EBUSY if it is asked to execute func on the current cpu.
(akpm: except for x86_64). Therefore the UP version must always return
-EBUSY.
[akpm@xxxxxxxxxxxxxxxxxxxx: build fix]
Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/smp.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff -puN include/linux/smp.h~let-smp_call_function_single-return-ebusy-on-up include/linux/smp.h
--- a/include/linux/smp.h~let-smp_call_function_single-return-ebusy-on-up
+++ a/include/linux/smp.h
@@ -6,6 +6,7 @@
* Alan Cox. <alan@xxxxxxxxxx>
*/
+#include <linux/errno.h>
extern void cpu_idle(void);
@@ -99,11 +100,9 @@ static inline void smp_send_reschedule(i
#define num_booting_cpus() 1
#define smp_prepare_boot_cpu() do {} while (0)
static inline int smp_call_function_single(int cpuid, void (*func) (void *info),
- void *info, int retry, int wait)
+ void *info, int retry, int wait)
{
- /* Disable interrupts here? */
- func(info);
- return 0;
+ return -EBUSY;
}
#endif /* !SMP */
_
Patches currently in -mm which might be from heiko.carstens@xxxxxxxxxx are
origin.patch
git-s390.patch
s390-spinlock-initializer-cleanup.patch
x86_64-fix-smp_call_function_single-return-value.patch
-
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