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-rw-r--r--lib/iov_iter.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 4b7fce72e3e5..c3ca28ca68a6 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -174,13 +174,16 @@ static int copyout(void __user *to, const void *from, size_t n)
static int copyin(void *to, const void __user *from, size_t n)
{
+ size_t res = n;
+
if (should_fail_usercopy())
return n;
if (access_ok(from, n)) {
- instrument_copy_from_user(to, from, n);
- n = raw_copy_from_user(to, from, n);
+ instrument_copy_from_user_before(to, from, n);
+ res = raw_copy_from_user(to, from, n);
+ instrument_copy_from_user_after(to, from, n, res);
}
- return n;
+ return res;
}
static inline struct pipe_buffer *pipe_buf(const struct pipe_inode_info *pipe,