diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2015-10-19 08:35:30 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2015-10-19 08:35:30 +0300 |
commit | ec0a2ed6d8a5e555edef907895c041e285fdb495 (patch) | |
tree | a4c8d982f8ac820b1b60818df22ad3ccac2036d5 /kernel/net/openvswitch/flow_table.c | |
parent | 342fa5dfa053559f47caad657132522496dcf1b3 (diff) |
These changes are a raw update to a vanilla kernel 4.1.10, with the
recently announced rt patch patch-4.1.10-rt10.patch. No further changes
needed.
Change-Id: I9a0cf084498133b10771e744b6da4b29dff706ba
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/net/openvswitch/flow_table.c')
-rw-r--r-- | kernel/net/openvswitch/flow_table.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/kernel/net/openvswitch/flow_table.c b/kernel/net/openvswitch/flow_table.c index 4613df8c8..aa349514e 100644 --- a/kernel/net/openvswitch/flow_table.c +++ b/kernel/net/openvswitch/flow_table.c @@ -56,20 +56,21 @@ static u16 range_n_bytes(const struct sw_flow_key_range *range) } void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src, - const struct sw_flow_mask *mask) + bool full, const struct sw_flow_mask *mask) { - const long *m = (const long *)((const u8 *)&mask->key + - mask->range.start); - const long *s = (const long *)((const u8 *)src + - mask->range.start); - long *d = (long *)((u8 *)dst + mask->range.start); + int start = full ? 0 : mask->range.start; + int len = full ? sizeof *dst : range_n_bytes(&mask->range); + const long *m = (const long *)((const u8 *)&mask->key + start); + const long *s = (const long *)((const u8 *)src + start); + long *d = (long *)((u8 *)dst + start); int i; - /* The memory outside of the 'mask->range' are not set since - * further operations on 'dst' only uses contents within - * 'mask->range'. + /* If 'full' is true then all of 'dst' is fully initialized. Otherwise, + * if 'full' is false the memory outside of the 'mask->range' is left + * uninitialized. This can be used as an optimization when further + * operations on 'dst' only use contents within 'mask->range'. */ - for (i = 0; i < range_n_bytes(&mask->range); i += sizeof(long)) + for (i = 0; i < len; i += sizeof(long)) *d++ = *s++ & *m++; } @@ -473,7 +474,7 @@ static struct sw_flow *masked_flow_lookup(struct table_instance *ti, u32 hash; struct sw_flow_key masked_key; - ovs_flow_mask_key(&masked_key, unmasked, mask); + ovs_flow_mask_key(&masked_key, unmasked, false, mask); hash = flow_hash(&masked_key, &mask->range); head = find_bucket(ti, hash); hlist_for_each_entry_rcu(flow, head, flow_table.node[ti->node_ver]) { |