Move FAULT_FLAG_xyz into handle_mm_fault() callers
This allows the callers to now pass down the full set of FAULT_FLAG_xyz
flags to handle_mm_fault(). All callers have been (mechanically)
converted to the new calling convention, there's almost certainly room
for architectures to clean up their code and then add FAULT_FLAG_RETRY
when that support is added.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/memory.c b/mm/memory.c
index e6a9700..98bcb90 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1310,8 +1310,9 @@
cond_resched();
while (!(page = follow_page(vma, start, foll_flags))) {
int ret;
- ret = handle_mm_fault(mm, vma, start,
- foll_flags & FOLL_WRITE);
+
+ /* FOLL_WRITE matches FAULT_FLAG_WRITE! */
+ ret = handle_mm_fault(mm, vma, start, foll_flags & FOLL_WRITE);
if (ret & VM_FAULT_ERROR) {
if (ret & VM_FAULT_OOM)
return i ? i : -ENOMEM;
@@ -2958,13 +2959,12 @@
* By the time we get here, we already hold the mm semaphore
*/
int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
- unsigned long address, int write_access)
+ unsigned long address, unsigned int flags)
{
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
- unsigned int flags = write_access ? FAULT_FLAG_WRITE : 0;
__set_current_state(TASK_RUNNING);