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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-05-17 10:00:02 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-05-17 10:00:15 +0200 |
| commit | 6a2df3a87276cdc08fd87070d09ea18d1fb9d622 (patch) | |
| tree | 384b646d0a826ab5c2bafa63e9bea4a057815fe2 /arch/s390/include | |
| parent | [S390] cleanup sysc_work and io_work code (diff) | |
| download | linux-dev-6a2df3a87276cdc08fd87070d09ea18d1fb9d622.tar.xz linux-dev-6a2df3a87276cdc08fd87070d09ea18d1fb9d622.zip | |
[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>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/system.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h index 1741c1556a4e..cef66210c846 100644 --- a/arch/s390/include/asm/system.h +++ b/arch/s390/include/asm/system.h @@ -459,11 +459,6 @@ extern void (*_machine_power_off)(void); #define arch_align_stack(x) (x) -#ifdef CONFIG_TRACE_IRQFLAGS -extern psw_t sysc_restore_trace_psw; -extern psw_t io_restore_trace_psw; -#endif - static inline int tprot(unsigned long addr) { int rc = -EFAULT; |