diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2019-10-14 11:05:42 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2019-10-14 11:14:26 +0200 |
| commit | 957dbe6fdc10ab6e25e90af503e78fc8c8c49b72 (patch) | |
| tree | 497c536df219990ff14c8e6fe5e22333f9b3e9d6 /examples/rtnl/rtnl-link-dump2.c | |
| parent | 9d35bd34196ba8aa044552c3f45b92fe70557627 (diff) | |
include: add MNL_SOCKET_DUMP_SIZE definition
Add definition to recommend a new buffer size for netlink dumps.
Details are available here:
commit d35c99ff77ecb2eb239731b799386f3b3637a31e
Author: Eric Dumazet <edumazet@google.com>
Date: Thu Oct 6 04:13:18 2016 +0900
netlink: do not enter direct reclaim from netlink_dump()
iproute2 is using 32 KBytes buffer in netlink dumps to speed up netlink
dumps for a while. Let's recommend this buffer size through this new
definition. Update examples too.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'examples/rtnl/rtnl-link-dump2.c')
| -rw-r--r-- | examples/rtnl/rtnl-link-dump2.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/examples/rtnl/rtnl-link-dump2.c b/examples/rtnl/rtnl-link-dump2.c index b3ca3fa..890e51a 100644 --- a/examples/rtnl/rtnl-link-dump2.c +++ b/examples/rtnl/rtnl-link-dump2.c @@ -54,12 +54,12 @@ static int data_cb(const struct nlmsghdr *nlh, void *data) int main(void) { + char buf[MNL_SOCKET_DUMP_SIZE]; + unsigned int seq, portid; struct mnl_socket *nl; - char buf[MNL_SOCKET_BUFFER_SIZE]; struct nlmsghdr *nlh; struct rtgenmsg *rt; int ret; - unsigned int seq, portid; nlh = mnl_nlmsg_put_header(buf); nlh->nlmsg_type = RTM_GETLINK; |