Hi Paul,
Today's linux-next merge of the rcu tree got a conflict in:
arch/x86/kernel/traps.c
between commit:
8c84014f3bbb ("x86/entry: Remove exception_enter() from most trap handlers")
from the tip tree and commit:
02300fdb3e5f ("rcu: Rename rcu_lockdep_assert() to RCU_LOCKDEP_WARN()")
from the rcu tree.
I fixed it up (see below) and can carry the fix as necessary (no action
is required).
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
diff --cc arch/x86/kernel/traps.c
index 8e65d8a9b8db,c5a5231d1d11..000000000000
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@@ -131,14 -136,19 +131,14 @@@ void ist_enter(struct pt_regs *regs
preempt_count_add(HARDIRQ_OFFSET);
/* This code is a bit fragile. Test it. */
- rcu_lockdep_assert(rcu_is_watching(), "ist_enter didn't work");
+ RCU_LOCKDEP_WARN(!rcu_is_watching(), "ist_enter didn't work");
-
- return prev_state;
}
-void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
+void ist_exit(struct pt_regs *regs)
{
- /* Must be before exception_exit. */
preempt_count_sub(HARDIRQ_OFFSET);
- if (user_mode(regs))
- return exception_exit(prev_state);
- else
+ if (!user_mode(regs))
rcu_nmi_exit();
}
--
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