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-rw-r--r--include/asm-ppc/thread_info.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-ppc/thread_info.h b/include/asm-ppc/thread_info.h
index e3b5284..27903db 100644
--- a/include/asm-ppc/thread_info.h
+++ b/include/asm-ppc/thread_info.h
@@ -20,7 +20,8 @@ struct thread_info {
unsigned long flags; /* low level flags */
unsigned long local_flags; /* non-racy flags */
int cpu; /* cpu we're on */
- int preempt_count;
+ int preempt_count; /* 0 => preemptable,
+ <0 => BUG */
struct restart_block restart_block;
};