linux-stable.git/net/ipv4/ipmr.c, branch linux-4.17.y

net: Drop pernet_operations::async

2018-03-27T17:18:09+00:00

Synchronous pernet_operations are not allowed anymore.
All are asynchronous. So, drop the structure member.

Signed-off-by: Kirill Tkhai 
Signed-off-by: David S. Miller

ip6mr: Add refcounting to mfc

2018-03-26T17:14:43+00:00

Since ipmr and ip6mr are using the same mr_mfc struct at their core, we
can now refactor the ipmr_cache_{hold,put} logic and apply refcounting
to both ipmr and ip6mr.

Signed-off-by: Yuval Mintz 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

ipmr: Make ipmr_dump() common

2018-03-26T17:14:43+00:00

Since all the primitive elements used for the notification done by ipmr
are now common [mr_table, mr_mfc, vif_device] we can refactor the logic
for dumping them to a common file.

Signed-off-by: Yuval Mintz 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

ipmr: Make MFC fib notifiers common

2018-03-26T17:14:42+00:00

Like vif notifications, move the notifier struct for MFC as well as its
helpers into a common file; Currently they're only used by ipmr.

Signed-off-by: Yuval Mintz 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

ipmr: Make vif fib notifiers common

2018-03-26T17:14:42+00:00

The fib-notifiers are tightly coupled with the vif_device which is
already common. Move the notifier struct definition and helpers to the
common file; Currently they're only used by ipmr.

Signed-off-by: Yuval Mintz 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

net: Revert "ipv4: fix a deadlock in ip_ra_control"

2018-03-22T19:12:56+00:00

This reverts commit 1215e51edad1.
Since raw_close() is used on every RAW socket destruction,
the changes made by 1215e51edad1 scale sadly. This clearly
seen on endless unshare(CLONE_NEWNET) test, and cleanup_net()
kwork spends a lot of time waiting for rtnl_lock() introduced
by this commit.

Previous patch moved IP_ROUTER_ALERT out of rtnl_lock(),
so we revert this patch.

Signed-off-by: Kirill Tkhai 
Signed-off-by: David S. Miller

ipmr, ip6mr: Unite dumproute flows

2018-03-01T18:13:23+00:00

The various MFC entries are being held in the same kind of mr_tables
for both ipmr and ip6mr, and their traversal logic is identical.
Also, with the exception of the addresses [and other small tidbits]
the major bulk of the nla setting is identical.

Unite as much of the dumping as possible between the two.
Notice this requires creating an mr_table iterator for each, as the
for-each preprocessor macro can't be used by the common logic.

Signed-off-by: Yuval Mintz 
Acked-by: Nikolay Aleksandrov 
Signed-off-by: David S. Miller

ipmr, ip6mr: Unite vif seq functions

2018-03-01T18:13:23+00:00

Same as previously done with the mfc seq, the logic for the vif seq is
refactored to be shared between ipmr and ip6mr.

Signed-off-by: Yuval Mintz 
Acked-by: Nikolay Aleksandrov 
Signed-off-by: David S. Miller

ipmr, ip6mr: Unite mfc seq logic

2018-03-01T18:13:23+00:00

With the exception of the final dump, ipmr and ip6mr have the exact same
seq logic for traversing a given mr_table. Refactor that code and make
it common.

Signed-off-by: Yuval Mintz 
Acked-by: Nikolay Aleksandrov 
Signed-off-by: David S. Miller

ipmr, ip6mr: Unite logic for searching in MFC cache

2018-03-01T18:13:23+00:00

ipmr and ip6mr utilize the exact same methods for searching the
hashed resolved connections, difference being only in the construction
of the hash comparison key.

In order to unite the flow, introduce an mr_table operation set that
would contain the protocol specific information required for common
flows, in this case - the hash parameters and a comparison key
representing a (*,*) route.

Signed-off-by: Yuval Mintz 
Acked-by: Nikolay Aleksandrov 
Signed-off-by: David S. Miller