From 1bb50cad45f4a3fb9a339006d76efc50f70eed5b Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Wed, 23 Dec 2015 17:13:04 -0500 Subject: arch/tile: move user_exit() to early kernel entry sequence This ensures that we always notify context tracking that we have exited from user space no matter how we enter the kernel. It is similar to how arm64 handles context tracking, for example. This allows the removal of all the exception_enter() calls that were added in commit 49e4e15619cd ("tile: support CONTEXT_TRACKING and thus NOHZ_FULL"). Signed-off-by: Chris Metcalf --- arch/tile/kernel/single_step.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'arch/tile/kernel/single_step.c') diff --git a/arch/tile/kernel/single_step.c b/arch/tile/kernel/single_step.c index 53f7b9def07b..862973074bf9 100644 --- a/arch/tile/kernel/single_step.c +++ b/arch/tile/kernel/single_step.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include #include @@ -739,7 +738,6 @@ static DEFINE_PER_CPU(unsigned long, ss_saved_pc); void gx_singlestep_handle(struct pt_regs *regs, int fault_num) { - enum ctx_state prev_state = exception_enter(); unsigned long *ss_pc = this_cpu_ptr(&ss_saved_pc); struct thread_info *info = (void *)current_thread_info(); int is_single_step = test_ti_thread_flag(info, TIF_SINGLESTEP); @@ -756,7 +754,6 @@ void gx_singlestep_handle(struct pt_regs *regs, int fault_num) __insn_mtspr(SPR_SINGLE_STEP_CONTROL_K, control); send_sigtrap(current, regs); } - exception_exit(prev_state); } -- cgit v1.2.3