* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#include <linux/config.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/kernel.h>
*/
good_area:
if (READ_FAULT(fsr)) /* read? */
- mask = VM_READ|VM_EXEC;
+ mask = VM_READ|VM_EXEC|VM_WRITE;
else
mask = VM_WRITE;
* Handle the "normal" cases first - successful and sigbus
*/
switch (fault) {
- case 2:
+ case VM_FAULT_MAJOR:
tsk->maj_flt++;
return fault;
- case 1:
+ case VM_FAULT_MINOR:
tsk->min_flt++;
- case 0:
+ case VM_FAULT_SIGBUS:
return fault;
}
fault = -3; /* out of memory */
- if (tsk->pid != 1)
+ if (!is_init(tsk))
goto out;
/*
* If we're in an interrupt or have no user
* context, we must not take the fault..
*/
- if (in_interrupt() || !mm)
+ if (in_atomic() || !mm)
goto no_context;
down_read(&mm->mmap_sem);
/*
* Handle the "normal" case first
*/
- if (fault > 0)
+ switch (fault) {
+ case VM_FAULT_MINOR:
+ case VM_FAULT_MAJOR:
return 0;
-
- /*
- * We had some memory, but were unable to
- * successfully fix up this page fault.
- */
- if (fault == 0){
+ case VM_FAULT_SIGBUS:
goto do_sigbus;
}