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-rw-r--r--mm/filemap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index daa0e23a6ee6..767202265048 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3743,7 +3743,7 @@ again:
* same page as we're writing to, without it being marked
* up-to-date.
*/
- if (unlikely(fault_in_iov_iter_readable(i, bytes))) {
+ if (unlikely(fault_in_iov_iter_readable(i, bytes) == bytes)) {
status = -EFAULT;
break;
}