Commit 699ff13f authored by Michael Ryan's avatar Michael Ryan Committed by Linus Torvalds
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[PATCH] s390: cpu up retries



Retry starting of new cpu if sigp restart returns condition code 2 (busy).
Signed-off-by: default avatarMichael Ryan <ryan@funsoft.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 4896cef8
......@@ -665,7 +665,9 @@ __cpu_up(unsigned int cpu)
cpu_lowcore->current_task = (unsigned long) idle;
cpu_lowcore->cpu_data.cpu_nr = cpu;
eieio();
signal_processor(cpu,sigp_restart);
while (signal_processor(cpu,sigp_restart) == sigp_busy)
udelay(10);
while (!cpu_online(cpu))
cpu_relax();
......
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