kernel.git/arch/s390/kernel/traps.c, branch linux-3.1.y

atomic: use

2011-07-26T23:49:47Z

This allows us to move duplicated code in (atomic_inc_not_zero() for now) to Signed-off-by: Arun Sharma Reviewed-by: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Cc: Eric Dumazet Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[S390] use siginfo for sigtrap signals

2011-07-24T08:48:23Z

Provide additional information on SIGTRAP by using a sig_info signal. Use TRAP_BRKPT for breakpoints via illegal operation and TRAP_HWBKPT for breakpoints via program event recording. Provide the address of the instruction that caused the breakpoint via si_addr. While we are at it get rid of tracehook_consider_fatal_signal. Signed-off-by: Martin Schwidefsky

[S390] cleanup program check handler prototypes

2011-07-24T08:48:21Z

Signed-off-by: Martin Schwidefsky

ptrace: kill trivial tracehooks

2011-06-22T17:26:28Z

At this point, tracehooks aren't useful to mainline kernel and mostly just add an extra layer of obfuscation. Although they have comments, without actual in-kernel users, it is difficult to tell what are their assumptions and they're actually trying to achieve. To mainline kernel, they just aren't worth keeping around. This patch kills the following trivial tracehooks. * Ones testing whether task is ptraced. Replace with ->ptrace test. tracehook_expect_breakpoints() tracehook_consider_ignored_signal() tracehook_consider_fatal_signal() * ptrace_event() wrappers. Call directly. tracehook_report_exec() tracehook_report_exit() tracehook_report_vfork_done() * ptrace_release_task() wrapper. Call directly. tracehook_finish_release_task() * noop tracehook_prepare_release_task() tracehook_report_death() This doesn't introduce any behavior change. Signed-off-by: Tejun Heo Cc: Christoph Hellwig Cc: Martin Schwidefsky Signed-off-by: Oleg Nesterov

[S390] irq: merge irq.c and s390_ext.c

2011-05-26T07:48:24Z

Merge irq.c and s390_ext.c into irq.c. That way all external interrupt related functions are together. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390: remove task_show_regs

2011-02-15T15:34:16Z

task_show_regs used to be a debugging aid in the early bringup days of Linux on s390. /proc//status is a world readable file, it is not a good idea to show the registers of a process. The only correct fix is to remove task_show_regs. Reported-by: Al Viro Signed-off-by: Martin Schwidefsky Signed-off-by: Linus Torvalds

[S390] ptrace cleanup

2011-01-05T11:47:31Z

Overhaul program event recording and the code dealing with the ptrace user space interface. Signed-off-by: Martin Schwidefsky

[S390] nmi: enable machine checks early

2011-01-05T11:47:29Z

Until now machine checks for the swapper process of the IPL cpu are just implicitly (and more or less accidently) enabled when the first time the idle process goes into idle state and loads an enabled wait psw. Before that machine checks are disabled. So let's enable them explicitly in trap_init() so we have a well defined time when machine checks are enabled. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] pfault: delay register of pfault interrupt

2011-01-05T11:47:26Z

Use an early init call to initialize pfault. That way it is possible to use the register_external_interrupt() instead of the early variant. No need to enable pfault any earlier since it has only effect if user space processes are running. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] add kprobes annotations

2011-01-05T11:47:24Z

Add kprobes annotations to get the massive 'probe kernel.function("*") {}' stress test working. Signed-off-by: Martin Schwidefsky