diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2007-10-11 22:11:12 +0200 |
|---|---|---|
| committer | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-11 22:11:12 +0200 |
| commit | 523b44cff279c42c79f7bda709e2fefc30f20a59 (patch) | |
| tree | 544c308d3e5e397b5b101968d617185e4cfdb291 /arch/s390/kernel/entry.S | |
| parent | 10cd706d180b62a61aace5b440247c8785026ac1 (diff) | |
lockdep: s390: connect the sysexit hook
Run the lockdep_sys_exit hook before returning to user space.
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index f3bceb165321..139ca153d5cc 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -68,9 +68,15 @@ STACK_SIZE = 1 << STACK_SHIFT l %r1,BASED(.Ltrace_irq_off) basr %r14,%r1 .endm + + .macro LOCKDEP_SYS_EXIT + l %r1,BASED(.Llockdep_sys_exit) + basr %r14,%r1 + .endm #else #define TRACE_IRQS_ON #define TRACE_IRQS_OFF +#define LOCKDEP_SYS_EXIT #endif /* @@ -260,6 +266,7 @@ sysc_return: bno BASED(sysc_leave) tm __TI_flags+3(%r9),_TIF_WORK_SVC bnz BASED(sysc_work) # there is work to do (signals etc.) + LOCKDEP_SYS_EXIT sysc_leave: RESTORE_ALL __LC_RETURN_PSW,1 @@ -283,6 +290,7 @@ sysc_work: bo BASED(sysc_restart) tm __TI_flags+3(%r9),_TIF_SINGLE_STEP bo BASED(sysc_singlestep) + LOCKDEP_SYS_EXIT b BASED(sysc_leave) # @@ -572,6 +580,7 @@ io_return: #endif tm __TI_flags+3(%r9),_TIF_WORK_INT bnz BASED(io_work) # there is work to do (signals etc.) + LOCKDEP_SYS_EXIT io_leave: RESTORE_ALL __LC_RETURN_PSW,0 io_done: @@ -618,6 +627,7 @@ io_work_loop: bo BASED(io_reschedule) tm __TI_flags+3(%r9),(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK) bnz BASED(io_sigpending) + LOCKDEP_SYS_EXIT b BASED(io_leave) # @@ -1040,6 +1050,8 @@ cleanup_io_leave_insn: .Ltrace_irq_on: .long trace_hardirqs_on .Ltrace_irq_off: .long trace_hardirqs_off +.Llockdep_sys_exit: + .long lockdep_sys_exit #endif .Lcritical_start: .long __critical_start + 0x80000000 |