Messages in this thread Patch in this message | | | From | Ravi Bangoria <> | Subject | [PATCH v4 11/16] powerpc/watchpoint: Introduce is_ptrace_bp() function | Date | Thu, 30 Apr 2020 10:04:12 +0530 |
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Introduce is_ptrace_bp() function and move the check inside the function. We will utilize it more in later set of patches.
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Reviewed-by: Michael Neuling <mikey@neuling.org> --- arch/powerpc/kernel/hw_breakpoint.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c index 772b2c953220..319a761b7412 100644 --- a/arch/powerpc/kernel/hw_breakpoint.c +++ b/arch/powerpc/kernel/hw_breakpoint.c @@ -90,6 +90,11 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp) hw_breakpoint_disable(); } +static bool is_ptrace_bp(struct perf_event *bp) +{ + return bp->overflow_handler == ptrace_triggered; +} + /* * Perform cleanup of arch-specific counters during unregistration * of the perf-event @@ -324,7 +329,7 @@ int hw_breakpoint_handler(struct die_args *args) * one-shot mode. The ptrace-ed process will receive the SIGTRAP signal * generated in do_dabr(). */ - if (bp->overflow_handler == ptrace_triggered) { + if (is_ptrace_bp(bp)) { perf_bp_event(bp, regs); rc = NOTIFY_DONE; goto out; -- 2.21.1
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