| created | 2024-08-19T08:04:49Z |
|---|---|
| begin | 2024-08-12T06:47:11Z |
| end | 2024-08-12T11:25:27Z |
| path | src/sys |
| commits | 1 |
| date | 2024-08-12T11:25:27Z | |||
|---|---|---|---|---|
| author | bluhm | |||
| files | src/sys/kern/uipc_domain.c | log | diff | annotate |
| src/sys/netinet/igmp.c | log | diff | annotate | |
| src/sys/netinet6/icmp6.c | log | diff | annotate | |
| src/sys/netinet6/mld6.c | log | diff | annotate | |
| message |
Run network protocol timer without kernel lock. Mark slow and fast protocol timeouts as MP safe. This means they run on a spearate thread without holding the kernel lock. IGMP and MLD6 cannot run in parallel, they use exclusive net lock to protect themselves. As a performance optimization global variables are used to skip igmp_fasttimo() and mld6_fasttimeo() if no multicast is active. These global variables use atomic operations and memory barriers to work lockless. IPv6 fragment timeout protects itself with a mutex. TCP timers also run without kernel lock now. The whole TCP stack holds exclusive net lock, so additional kernel lock is useless. OK mvs@ |
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