3.2.56-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: "Paul E. McKenney" <[email protected]> commit 85eae82a0855d49852b87deac8653e4ebc8b291f upstream. The console_cpu_notify() function runs with interrupts disabled in the CPU_DYING case. It therefore cannot block, for example, as will happen when it calls console_lock(). Therefore, remove the CPU_DYING leg of the switch statement to avoid this problem. Signed-off-by: Paul E. McKenney <[email protected]> Reviewed-by: Srivatsa S. Bhat <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- kernel/printk.c | 1 - 1 file changed, 1 deletion(-) --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1165,7 +1165,6 @@ static int __cpuinit console_cpu_notify( switch (action) { case CPU_ONLINE: case CPU_DEAD: - case CPU_DYING: case CPU_DOWN_FAILED: case CPU_UP_CANCELED: console_lock(); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
