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| author |   John Fastabend <john.fastabend@gmail.com> | 2018-03-18 12:57:00 -0700 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2018-03-19 21:14:38 +0100 |
| commit | 312fc2b4c82e96a48cb2d0da2bd4816eb253c499 (patch) | |
| tree | 6bcfadb456706b7e326c46f17bff214e56181fcc /net/core | |
| parent | sockmap: convert refcnt to an atomic refcnt (diff) | |
| download | linux-dev-312fc2b4c82e96a48cb2d0da2bd4816eb253c499.tar.xz linux-dev-312fc2b4c82e96a48cb2d0da2bd4816eb253c499.zip | |
net: do_tcp_sendpages flag to avoid SKBTX_SHARED_FRAG
When calling do_tcp_sendpages() from in kernel and we know the data
has no references from user side we can omit SKBTX_SHARED_FRAG flag.
This patch adds an internal flag, NO_SKBTX_SHARED_FRAG that can be used
to omit setting SKBTX_SHARED_FRAG.
The flag is not exposed to userspace because the sendpage call from
the splice logic masks out all bits except MSG_MORE.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions