diff options
| author | Arjun Roy <arjunroy@google.com> | 2020-12-02 14:53:46 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-12-04 13:40:53 -0800 |
| commit | 936ced415751f744654f64977ddbf67d17a2a45a (patch) | |
| tree | 77b7b5c2672a902ad70db1dfae9fe10f4922657f /tools/perf/scripts/python | |
| parent | net-zerocopy: Refactor frag-is-remappable test. (diff) | |
| download | linux-936ced415751f744654f64977ddbf67d17a2a45a.tar.gz linux-936ced415751f744654f64977ddbf67d17a2a45a.zip | |
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>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions