| commit | 936ced415751f744654f64977ddbf67d17a2a45a | [log] [tgz] |
|---|---|---|
| author | Arjun Roy <arjunroy@google.com> | Wed Dec 02 14:53:46 2020 -0800 |
| committer | Jakub Kicinski <kuba@kernel.org> | Fri Dec 04 13:40:53 2020 -0800 |
| tree | 77b7b5c2672a902ad70db1dfae9fe10f4922657f | |
| parent | 98917cf0d6eda01e8c3c34d35398d46b247b6fd3 [diff] |
net-zerocopy: Fast return if inq < PAGE_SIZE Sometimes, we may call tcp receive zerocopy when inq is 0, or inq < PAGE_SIZE, in which case we cannot remap pages. In this case, simply return the appropriate hint for regular copying without taking mmap_sem. Signed-off-by: Arjun Roy <arjunroy@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>