/* Letting ubd=sync be like using ubd#s= instead of ubd#= is
* enough. So use anyway the io thread. */
}
- stack = alloc_stack(0, 0);
+ stack = alloc_stack(0);
io_pid = start_io_thread(stack + PAGE_SIZE - sizeof(void *),
&thread_fd);
if(io_pid < 0){
#define UML_ROUND_UP(addr) \
((((unsigned long) addr) + PAGE_SIZE - 1) & PAGE_MASK)
-extern unsigned long alloc_stack(int order, int atomic);
+extern unsigned long alloc_stack(int atomic);
extern void free_stack(unsigned long stack, int order);
struct pt_regs;
#include <os.h>
#include <skas.h>
#include <linux/time-internal.h>
+#include <asm/set_memory.h>
/*
* This is a per-cpu array. A processor only modifies its entry and it only
free_pages(stack, order);
}
-unsigned long alloc_stack(int order, int atomic)
+unsigned long alloc_stack(int atomic)
{
- unsigned long page;
+ unsigned long addr;
gfp_t flags = GFP_KERNEL;
if (atomic)
flags = GFP_ATOMIC;
- page = __get_free_pages(flags, order);
+ addr = __get_free_pages(flags, 1);
- return page;
+ set_memory_ro(addr, 1);
+
+ return addr + PAGE_SIZE;
}
static inline void set_current(struct task_struct *task)
unsigned long stack, sp;
int pid, fds[2], ret, n;
- stack = alloc_stack(0, __cant_sleep());
+ stack = alloc_stack(__cant_sleep());
if (stack == 0)
return -ENOMEM;
unsigned long stack, sp;
int pid, status, err;
- stack = alloc_stack(0, __cant_sleep());
+ stack = alloc_stack(__cant_sleep());
if (stack == 0)
return -ENOMEM;