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-rw-r--r--arch/um/kernel/skas/process_kern.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/um/kernel/skas/process_kern.c b/arch/um/kernel/skas/process_kern.c
index 3f70a2e12f06..2135eaf98a93 100644
--- a/arch/um/kernel/skas/process_kern.c
+++ b/arch/um/kernel/skas/process_kern.c
@@ -35,6 +35,8 @@ void switch_to_skas(void *prev, void *next)
35 switch_threads(&from->thread.mode.skas.switch_buf, 35 switch_threads(&from->thread.mode.skas.switch_buf,
36 to->thread.mode.skas.switch_buf); 36 to->thread.mode.skas.switch_buf);
37 37
38 arch_switch_to_skas(current->thread.prev_sched, current);
39
38 if(current->pid == 0) 40 if(current->pid == 0)
39 switch_timers(1); 41 switch_timers(1);
40} 42}
@@ -89,10 +91,17 @@ void fork_handler(int sig)
89 panic("blech"); 91 panic("blech");
90 92
91 schedule_tail(current->thread.prev_sched); 93 schedule_tail(current->thread.prev_sched);
94
95 /* XXX: if interrupt_end() calls schedule, this call to
96 * arch_switch_to_skas isn't needed. We could want to apply this to
97 * improve performance. -bb */
98 arch_switch_to_skas(current->thread.prev_sched, current);
99
92 current->thread.prev_sched = NULL; 100 current->thread.prev_sched = NULL;
93 101
94/* Handle any immediate reschedules or signals */ 102/* Handle any immediate reschedules or signals */
95 interrupt_end(); 103 interrupt_end();
104
96 userspace(&current->thread.regs.regs); 105 userspace(&current->thread.regs.regs);
97} 106}
98 107
@@ -109,6 +118,8 @@ int copy_thread_skas(int nr, unsigned long clone_flags, unsigned long sp,
109 if(sp != 0) REGS_SP(p->thread.regs.regs.skas.regs) = sp; 118 if(sp != 0) REGS_SP(p->thread.regs.regs.skas.regs) = sp;
110 119
111 handler = fork_handler; 120 handler = fork_handler;
121
122 arch_copy_thread(&current->thread.arch, &p->thread.arch);
112 } 123 }
113 else { 124 else {
114 init_thread_registers(&p->thread.regs.regs); 125 init_thread_registers(&p->thread.regs.regs);