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Diffstat (limited to 'mm/mempolicy.c')
-rw-r--r--mm/mempolicy.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 1965e2681877..4930a9254068 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -405,10 +405,10 @@ void mpol_rebind_mm(struct mm_struct *mm, nodemask_t *new)
{
struct vm_area_struct *vma;
- down_write(&mm->mmap_sem);
+ mmap_write_lock(mm);
for (vma = mm->mmap; vma; vma = vma->vm_next)
mpol_rebind_policy(vma->vm_policy, new);
- up_write(&mm->mmap_sem);
+ mmap_write_unlock(mm);
}
static const struct mempolicy_operations mpol_ops[MPOL_MAX] = {
@@ -932,7 +932,7 @@ static int lookup_node(struct mm_struct *mm, unsigned long addr)
put_page(p);
}
if (locked)
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
return err;
}
@@ -965,10 +965,10 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask,
* vma/shared policy at addr is NULL. We
* want to return MPOL_DEFAULT in this case.
*/
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
vma = find_vma_intersection(mm, addr, addr+1);
if (!vma) {
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
return -EFAULT;
}
if (vma->vm_ops && vma->vm_ops->get_policy)
@@ -1027,7 +1027,7 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask,
out:
mpol_cond_put(pol);
if (vma)
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
if (pol_refcount)
mpol_put(pol_refcount);
return err;
@@ -1136,7 +1136,7 @@ int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
if (err)
return err;
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
/*
* Find a 'source' bit set in 'tmp' whose corresponding 'dest'
@@ -1217,7 +1217,7 @@ int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
if (err < 0)
break;
}
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
if (err < 0)
return err;
return busy;
@@ -1340,12 +1340,12 @@ static long do_mbind(unsigned long start, unsigned long len,
{
NODEMASK_SCRATCH(scratch);
if (scratch) {
- down_write(&mm->mmap_sem);
+ mmap_write_lock(mm);
task_lock(current);
err = mpol_set_nodemask(new, nmask, scratch);
task_unlock(current);
if (err)
- up_write(&mm->mmap_sem);
+ mmap_write_unlock(mm);
} else
err = -ENOMEM;
NODEMASK_SCRATCH_FREE(scratch);
@@ -1382,7 +1382,7 @@ up_out:
putback_movable_pages(&pagelist);
}
- up_write(&mm->mmap_sem);
+ mmap_write_unlock(mm);
mpol_out:
mpol_put(new);
return err;