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yaml
---
r: 65036
b: refs/heads/master
c: 508a927
h: refs/heads/master
v: v3
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Jeff Dike authored and Linus Torvalds committed Sep 19, 2007
1 parent 4f6fd67 commit ae355c8
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Showing 4 changed files with 8 additions and 7 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 480eccf9ae1073b87bb4fe118971fbf134a5bc61
refs/heads/master: 508a92741a105e2e3d466cd727fb73154ebf08de
2 changes: 1 addition & 1 deletion trunk/arch/um/include/kern_util.h
Original file line number Diff line number Diff line change
Expand Up @@ -117,7 +117,7 @@ extern void sigio_handler(int sig, union uml_pt_regs *regs);

extern void copy_sc(union uml_pt_regs *regs, void *from);

unsigned long to_irq_stack(int sig, unsigned long *mask_out);
extern unsigned long to_irq_stack(unsigned long *mask_out);
unsigned long from_irq_stack(int nested);

#endif
7 changes: 4 additions & 3 deletions trunk/arch/um/kernel/irq.c
Original file line number Diff line number Diff line change
Expand Up @@ -518,13 +518,13 @@ int init_aio_irq(int irq, char *name, irq_handler_t handler)

static unsigned long pending_mask;

unsigned long to_irq_stack(int sig, unsigned long *mask_out)
unsigned long to_irq_stack(unsigned long *mask_out)
{
struct thread_info *ti;
unsigned long mask, old;
int nested;

mask = xchg(&pending_mask, 1 << sig);
mask = xchg(&pending_mask, *mask_out);
if(mask != 0){
/* If any interrupts come in at this point, we want to
* make sure that their bits aren't lost by our
Expand All @@ -534,7 +534,7 @@ unsigned long to_irq_stack(int sig, unsigned long *mask_out)
* and pending_mask contains a bit for each interrupt
* that came in.
*/
old = 1 << sig;
old = *mask_out;
do {
old |= mask;
mask = xchg(&pending_mask, old);
Expand All @@ -550,6 +550,7 @@ unsigned long to_irq_stack(int sig, unsigned long *mask_out)

task = cpu_tasks[ti->cpu].task;
tti = task_thread_info(task);

*ti = *tti;
ti->real_thread = tti;
task->stack = ti;
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4 changes: 2 additions & 2 deletions trunk/arch/um/os-Linux/signal.c
Original file line number Diff line number Diff line change
Expand Up @@ -119,7 +119,7 @@ void (*handlers[_NSIG])(int sig, struct sigcontext *sc);

void handle_signal(int sig, struct sigcontext *sc)
{
unsigned long pending = 0;
unsigned long pending = 1UL << sig;

do {
int nested, bail;
Expand All @@ -134,7 +134,7 @@ void handle_signal(int sig, struct sigcontext *sc)
* have to return, and the upper handler will deal
* with this interrupt.
*/
bail = to_irq_stack(sig, &pending);
bail = to_irq_stack(&pending);
if(bail)
return;

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