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Diffstat (limited to 'Documentation/networking/tc-actions-env-rules.txt')
| -rw-r--r-- | Documentation/networking/tc-actions-env-rules.txt | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/Documentation/networking/tc-actions-env-rules.txt b/Documentation/networking/tc-actions-env-rules.txt deleted file mode 100644 index f37814693ad3..000000000000 --- a/Documentation/networking/tc-actions-env-rules.txt +++ /dev/null @@ -1,24 +0,0 @@ - -The "environmental" rules for authors of any new tc actions are: - -1) If you stealeth or borroweth any packet thou shalt be branching -from the righteous path and thou shalt cloneth. - -For example if your action queues a packet to be processed later, -or intentionally branches by redirecting a packet, then you need to -clone the packet. - -2) If you munge any packet thou shalt call pskb_expand_head in the case -someone else is referencing the skb. After that you "own" the skb. - -3) Dropping packets you don't own is a no-no. You simply return -TC_ACT_SHOT to the caller and they will drop it. - -The "environmental" rules for callers of actions (qdiscs etc) are: - -*) Thou art responsible for freeing anything returned as being -TC_ACT_SHOT/STOLEN/QUEUED. If none of TC_ACT_SHOT/STOLEN/QUEUED is -returned, then all is great and you don't need to do anything. - -Post on netdev if something is unclear. - |