Martin Schwidefsky 6a2df3a872 [S390] improve irq tracing code in entry[64].S ... The system call path in entry[64].S is run with interrupts enabled. Remove the irq tracing check from the system call exit code. If a program check interrupted a context enabled for interrupts do a call to trace_irq_off_caller in the program check handler before branching to the system call exit code. Restructure the system call and io interrupt return code to avoid avoid the lpsw[e] to disable machine checks. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2010-05-17 10:00:15 +02:00
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asm	[S390] improve irq tracing code in entry[64].S	2010-05-17 10:00:15 +02:00