xnu-1228.9.59.tar.gz

[apple/xnu.git] / osfmk / i386 / bsd_i386.c

diff --git a/osfmk/i386/bsd_i386.c b/osfmk/i386/bsd_i386.c
index 562b0b3920b65aef81c4699a6a427ba612e7c2af..a870cc503db0112b893d1cf79736990736022718 100644 (file)
--- a/osfmk/i386/bsd_i386.c
+++ b/osfmk/i386/bsd_i386.c
@@ -102,6 +102,7 @@ kern_return_t
 thread_compose_cthread_desc(unsigned int addr, pcb_t pcb);
 
 void IOSleep(int);
+extern void throttle_lowpri_io(boolean_t);
 
 void thread_set_cthreadself(thread_t thread, uint64_t pself, int isLP64);
 
@@ -394,6 +395,8 @@ machdep_syscall(x86_saved_state_t *state)
        if (current_thread()->funnel_lock)
                (void) thread_funnel_set(current_thread()->funnel_lock, FALSE);
 
+       throttle_lowpri_io(TRUE);
+
        thread_exception_return();
        /* NOTREACHED */
 }
@@ -432,6 +435,8 @@ machdep_syscall64(x86_saved_state_t *state)
        if (current_thread()->funnel_lock)
                (void) thread_funnel_set(current_thread()->funnel_lock, FALSE);
 
+       throttle_lowpri_io(TRUE);
+
        thread_exception_return();
        /* NOTREACHED */
 }
@@ -712,6 +717,8 @@ mach_call_munger(x86_saved_state_t *state)
                        retval, 0, 0, 0, 0);
        regs->eax = retval;
 
+       throttle_lowpri_io(TRUE);
+
        thread_exception_return();
        /* NOTREACHED */
 }
@@ -767,6 +774,8 @@ mach_call_munger64(x86_saved_state_t *state)
                                           (call_number)) | DBG_FUNC_END,
                              (int)regs->rax, 0, 0, 0, 0);
 
+       throttle_lowpri_io(TRUE);
+
        thread_exception_return();
        /* NOTREACHED */
 }