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| author | Arjun Roy <arjunroy@google.com> | 2020-12-03 01:53:46 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-12-05 00:40:53 +0300 |
| commit | 936ced415751f744654f64977ddbf67d17a2a45a (patch) | |
| tree | 77b7b5c2672a902ad70db1dfae9fe10f4922657f /net/ipv4/tcp_bpf.c | |
| parent | 98917cf0d6eda01e8c3c34d35398d46b247b6fd3 (diff) | |
| download | linux-936ced415751f744654f64977ddbf67d17a2a45a.tar.xz | |
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 'net/ipv4/tcp_bpf.c')
0 files changed, 0 insertions, 0 deletions