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SubjectRe: [PATCH v3 0/4] ipvs: fix backup sync daemon with IPv6, and minor updates


On Wed, 15 Jun 2016, Quentin Armitage wrote:

> This series of patches arise from discovering that:
> ipvsadm --start-daemon backup --mcast-group IPv6_address ...
> would always fail.
> The first patch resolves the problem. The second and third patches are
> optimizations that were noticed while investigating the original problem.
> The fourth patch adds a lock which appears to have been omitted, and the
> final patch adds the recently added sync daemon multicast parameters to
> the log messages that are written when the sync daemons start.
> v2 fixes a compile error in a debug message identified by kbuild test
> robot. Now compiles with CONFIG_IP_VS_DEBUG enabled. Patch 2/5 is modified
> to correct the problem, and patch 3/5 is modifed to apply with the
> modified patch 2/5.
> v3 incorporates changes suggested by Julian Anastasov.
> Patch 1 now sets 'sock->sk->sk_bound_dev_if = ifindex' rather than setting
> sin6_scope_id. Also remove the locks since unnecessary.
> Patch 3 shortens the logged message in order not to exceed 80-char limit.
> Patch 4 Removed, the locks aren't necessary
> Patch 5 No longer changes indentation of existing pr_info. Also removes <>
> around commit IDs in commit description.
> Patches 1, 2, 3, 5 are updated to resolve coding style warnings, and all
> pass with 0 errors, warnings and checks.
> Patch 5 now becomes patch 4.
> The changes have all been tested and work as expected.
> Quentin Armitage (4):
> ipvs: Enable setting IPv6 multicast address for ipvs
> ipvs: Stop calling __dev_get_by_name() repeatedly when starting sync
> daemon
> ipvs: Don't check result < 0 after setting result = 0
> ipvs: log additional sync daemon parameters
> net/netfilter/ipvs/ip_vs_sync.c | 105 +++++++++++++++++++--------------------
> 1 files changed, 52 insertions(+), 53 deletions(-)
> --

You should post first patch separately, not as a part
from the patchset, by specifying the tree:

[PATCH v4 net] ipvs: ...

The other 3 patches remain in this patchset,
with added "net-next":

[PATCH v4 net-next */3] ipvs: ...

Patch 1:

It is good to mention that problem happens for link-local
addresses, not for site/org-local or global scope. By this way
we are more precise when creating a bugfix, it avoids confusion.
You can also check again the Subject and the commit message for
improvements. It is up to you but here is an example:

ipvs: fix bind to link-local mcast IPv6 address in backup

The empty line between Fixes and Signed-off-by should be

Patch 2-3: look OK

Patch 4:

Some of the fields are unsigned, so %d should be %u:
sync_maxlen, mcast_port, mcast_af, mcast_ttl


Julian Anastasov <>

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