: namespace refcounting cleanup
Get series with b4
b4 am [email protected]Versions newest first
- v1 Latest8 patches 3 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/8 | : Make netns refconting debug like a socket one.include/ net/ | +30 | 2 replies | |
| 2/8 | : Add netns refcnt debug for kernel sockets.include/ net/ | +2 | 0 replies | |
| 3/8 | : Add netns refcnt debug for timewait buckets.net/ | +2 | 0 replies | |
| 4/8 | : Add netns refcnt debug into fib_info.net/ | +2 | 0 replies | |
| 5/8 | : Add netns refcnt debug for inet bind buckets.net/ | +2 | 0 replies | |
| 6/8 | : Add netns refcnt debug for dst ops.net/ | +3 | 0 replies | |
| 7/8 | : Add netns refcnt debug to fib rules.include/ net/ | +4 | 0 replies | |
| 8/8 | : Add netns refcnt debug for network devices.include/ net/ | +4 | 0 replies |
Reviews trailers per patch
No Reviewed-by, Acked-by or Tested-by trailers for v1 yet.
Cover letter [PATCH 0/8 net-2.6.26] [NETNS]: namespace refcounting cleanup
Network namespace has two referrence counters:
- count
- use_count.
The namespace is scheduled to destruction automatically when the count becomes 0.
There are several SLAB objects with a pointer to a namespace on them. These objects are cleaned up during namespace stop. Some of them increment use_count, some don't. This set fixes this discrepancy, i.e. now all such objects increment the use_count.
Though, the use_count itself is used in a very debug manner and checked only during namespace stop. So, I have placed it under NETNS_REFCNT_DEBUG definition exactly like this is done for socket refcounting code to remove extra atomic from any possible fast paths.
Signed-off-by Denis V. Lunev <[email protected]>