Differential D32584

Use network epoch to protect local IPv4 addresses hash.
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Authored by glebius on Oct 20 2021, 7:33 PM.

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rGc8ee75f2315e: Use network epoch to protect local IPv4 addresses hash.

Summary

The modification to the hash are already naturally locked by
in_control_sx. Convert the hash lists to CK lists. Remove the
in_ifaddr_rmlock. Assert the network epoch where necessary.

Most cases when the hash lookup is done the epoch is already entered.
Cover a few cases, that need entering the epoch, which mostly is
initial configuration of tunnel interfaces and multicast addresses.

Diff Detail

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

glebius created this revision.Oct 20 2021, 7:33 PM

Herald added subscribers: melifaro, ae, imp. · View Herald TranscriptOct 20 2021, 7:33 PM

glebius requested review of this revision.Oct 20 2021, 7:33 PM

Harbormaster completed remote builds in B42280: Diff 97184.Oct 20 2021, 7:33 PM

melifaro accepted this revision as: melifaro.Oct 20 2021, 10:16 PM

This revision is now accepted and ready to land.Oct 20 2021, 10:16 PM

Closed by commit rGc8ee75f2315e: Use network epoch to protect local IPv4 addresses hash. (authored by glebius). · Explain WhyOct 22 2021, 9:56 PM

This revision was automatically updated to reflect the committed changes.

glebius added a commit: rGc8ee75f2315e: Use network epoch to protect local IPv4 addresses hash..

Herald added a subscriber: farrokhi. · View Herald TranscriptOct 22 2021, 9:56 PM

Revision Contents
Changeset List

Path

Size

sys/

net/

3 lines

3 lines

6 lines

netinet/

13 lines

2 lines

46 lines

6 lines

3 lines

28 lines

24 lines

3 lines

7 lines

12 lines

netpfil/

pf/

17 lines

Diff 97308

sys/net/if_ipsec.c

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sys/net/if_me.c

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sys/net/if_stf.c

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sys/netinet/if_ether.c

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sys/netinet/in.h

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sys/netinet/in.c

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sys/netinet/in_debug.c

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sys/netinet/in_gif.c

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sys/netinet/in_mcast.c

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sys/netinet/in_var.h

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sys/netinet/ip_gre.c

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sys/netinet/ip_icmp.c

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sys/netinet/ip_input.c

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sys/netpfil/pf/pf.c

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