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Diffstat (limited to 'mm/userfaultfd.c')
-rw-r--r--mm/userfaultfd.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 7f5194046b01..691613c5db9f 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -228,7 +228,7 @@ static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,
* feature is not supported.
*/
if (zeropage) {
- up_read(&dst_mm->mmap_sem);
+ mmap_read_unlock(dst_mm);
return -EINVAL;
}
@@ -315,7 +315,7 @@ retry:
cond_resched();
if (unlikely(err == -ENOENT)) {
- up_read(&dst_mm->mmap_sem);
+ mmap_read_unlock(dst_mm);
BUG_ON(!page);
err = copy_huge_page_from_user(page,
@@ -326,7 +326,7 @@ retry:
err = -EFAULT;
goto out;
}
- down_read(&dst_mm->mmap_sem);
+ mmap_read_lock(dst_mm);
dst_vma = NULL;
goto retry;
@@ -346,7 +346,7 @@ retry:
}
out_unlock:
- up_read(&dst_mm->mmap_sem);
+ mmap_read_unlock(dst_mm);
out:
if (page) {
/*
@@ -485,7 +485,7 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
copied = 0;
page = NULL;
retry:
- down_read(&dst_mm->mmap_sem);
+ mmap_read_lock(dst_mm);
/*
* If memory mappings are changing because of non-cooperative
@@ -583,7 +583,7 @@ retry:
if (unlikely(err == -ENOENT)) {
void *page_kaddr;
- up_read(&dst_mm->mmap_sem);
+ mmap_read_unlock(dst_mm);
BUG_ON(!page);
page_kaddr = kmap(page);
@@ -612,7 +612,7 @@ retry:
}
out_unlock:
- up_read(&dst_mm->mmap_sem);
+ mmap_read_unlock(dst_mm);
out:
if (page)
put_page(page);
@@ -652,7 +652,7 @@ int mwriteprotect_range(struct mm_struct *dst_mm, unsigned long start,
/* Does the address range wrap, or is the span zero-sized? */
BUG_ON(start + len <= start);
- down_read(&dst_mm->mmap_sem);
+ mmap_read_lock(dst_mm);
/*
* If memory mappings are changing because of non-cooperative
@@ -686,6 +686,6 @@ int mwriteprotect_range(struct mm_struct *dst_mm, unsigned long start,
err = 0;
out_unlock:
- up_read(&dst_mm->mmap_sem);
+ mmap_read_unlock(dst_mm);
return err;
}