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Diffstat (limited to 'arch/s390/lib/uaccess_pt.c')
-rw-r--r--arch/s390/lib/uaccess_pt.c18
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index d66215b0fde9..b0b84c35b0ad 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -119,8 +119,6 @@ retry:
goto fault;
pfn = pte_pfn(*pte);
- if (!pfn_valid(pfn))
- goto out;
offset = uaddr & (PAGE_SIZE - 1);
size = min(n - done, PAGE_SIZE - offset);
@@ -135,7 +133,6 @@ retry:
done += size;
uaddr += size;
} while (done < n);
-out:
spin_unlock(&mm->page_table_lock);
return n - done;
fault:
@@ -163,9 +160,6 @@ retry:
goto fault;
pfn = pte_pfn(*pte);
- if (!pfn_valid(pfn))
- goto out;
-
ret = (pfn << PAGE_SHIFT) + (uaddr & (PAGE_SIZE - 1));
out:
return ret;
@@ -244,11 +238,6 @@ retry:
goto fault;
pfn = pte_pfn(*pte);
- if (!pfn_valid(pfn)) {
- done = -1;
- goto out;
- }
-
offset = uaddr & (PAGE_SIZE-1);
addr = (char *)(pfn << PAGE_SHIFT) + offset;
len = min(count - done, PAGE_SIZE - offset);
@@ -256,7 +245,6 @@ retry:
done += len_str;
uaddr += len_str;
} while ((len_str == len) && (done < count));
-out:
spin_unlock(&mm->page_table_lock);
return done + 1;
fault:
@@ -325,12 +313,7 @@ retry:
}
pfn_from = pte_pfn(*pte_from);
- if (!pfn_valid(pfn_from))
- goto out;
pfn_to = pte_pfn(*pte_to);
- if (!pfn_valid(pfn_to))
- goto out;
-
offset_from = uaddr_from & (PAGE_SIZE-1);
offset_to = uaddr_from & (PAGE_SIZE-1);
offset_max = max(offset_from, offset_to);
@@ -342,7 +325,6 @@ retry:
uaddr_from += size;
uaddr_to += size;
} while (done < n);
-out:
spin_unlock(&mm->page_table_lock);
return n - done;
fault: