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| author | Paolo Abeni <pabeni@redhat.com> | 2023-02-17 13:28:49 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-02-20 11:22:54 +0000 |
| commit | 50bcfe8df7c73ce51762f65d218b4ef0cc5da3ee (patch) | |
| tree | 095c3d2d38e056301ab0d59842e38fa85e331d0f /include | |
| parent | e469b6268d8cb7c6cf6b9cd5ce7f403de695627f (diff) | |
| download | lwn-50bcfe8df7c73ce51762f65d218b4ef0cc5da3ee.tar.gz lwn-50bcfe8df7c73ce51762f65d218b4ef0cc5da3ee.zip | |
net: make default_rps_mask a per netns attribute
That really was meant to be a per netns attribute from the beginning.
The idea is that once proper isolation is in place in the main
namespace, additional demux in the child namespaces will be redundant.
Let's make child netns default rps mask empty by default.
To avoid bloating the netns with a possibly large cpumask, allocate
it on-demand during the first write operation.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netdevice.h | 1 | ||||
| -rw-r--r-- | include/net/netns/core.h | 5 |
2 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index efbee940bb03..6a14b7b11766 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -224,7 +224,6 @@ struct net_device_core_stats { #include <linux/static_key.h> extern struct static_key_false rps_needed; extern struct static_key_false rfs_needed; -extern struct cpumask rps_default_mask; #endif struct neighbour; diff --git a/include/net/netns/core.h b/include/net/netns/core.h index 8249060cf5d0..a91ef9f8de60 100644 --- a/include/net/netns/core.h +++ b/include/net/netns/core.h @@ -6,6 +6,7 @@ struct ctl_table_header; struct prot_inuse; +struct cpumask; struct netns_core { /* core sysctls */ @@ -17,6 +18,10 @@ struct netns_core { #ifdef CONFIG_PROC_FS struct prot_inuse __percpu *prot_inuse; #endif + +#if IS_ENABLED(CONFIG_RPS) && IS_ENABLED(CONFIG_SYSCTL) + struct cpumask *rps_default_mask; +#endif }; #endif |