The patch titled
powerpc: fix DEBUG_PREEMPT warning when warning
has been added to the -mm tree. Its filename is
powerpc-fix-debug_preempt-warning-when-warning.patch
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See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: powerpc: fix DEBUG_PREEMPT warning when warning
From: Hugh Dickins <hugh@xxxxxxxxxxx>
The powerpc show_regs prints CPU using smp_processor_id: change that to
raw_smp_processor_id, so that when it's showing a WARN_ON backtrace without
preemption disabled, DEBUG_PREEMPT doesn't mess up that warning with its
own.
Signed-off-by: Hugh Dickins <hugh@xxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/process.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/powerpc/kernel/process.c~powerpc-fix-debug_preempt-warning-when-warning arch/powerpc/kernel/process.c
--- a/arch/powerpc/kernel/process.c~powerpc-fix-debug_preempt-warning-when-warning
+++ a/arch/powerpc/kernel/process.c
@@ -462,7 +462,7 @@ void show_regs(struct pt_regs * regs)
current, task_pid_nr(current), current->comm, task_thread_info(current));
#ifdef CONFIG_SMP
- printk(" CPU: %d", smp_processor_id());
+ printk(" CPU: %d", raw_smp_processor_id());
#endif /* CONFIG_SMP */
for (i = 0; i < 32; i++) {
_
Patches currently in -mm which might be from hugh@xxxxxxxxxxx are
origin.patch
git-unionfs.patch
git-x86.patch
percpu-fix-debug_preempt-per_cpu-checking.patch
powerpc-fix-debug_preempt-warning-when-warning.patch
r-o-bind-mounts-track-number-of-mount-writers.patch
procfs-task-exe-symlink.patch
procfs-task-exe-symlink-fix.patch
prio_tree-debugging-patch.patch
-
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