9867224bab
The hostcache up to now as been updated in the discard callback but without checking if we are all done (the race where there are more than one calls and the counter has not yet reached zero). This means that when the race occurs, we end up calling the hc_upate more than once. Also alternate stacks can keep there srtt/rttvar in different formats (example rack keeps its values in microseconds). Since we call the hc_update *before* the stack fini() then the values will be in the wrong format. Rack on the other hand, needs to convert items pulled from the hostcache into its internal format else it may end up with very much incorrect values from the hostcache. In the process lets commonize the update mechanism for srtt/rttvar since we now have more than one place that needs to call it. Reviewed by: Michael Tuexen Sponsored by: Netflix Inc Differential Revision: https://reviews.freebsd.org/D30172
FreeBSD Source:
This is the top level of the FreeBSD source directory.
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Source Roadmap:
| Directory | Description |
|---|---|
| bin | System/user commands. |
| cddl | Various commands and libraries under the Common Development and Distribution License. |
| contrib | Packages contributed by 3rd parties. |
| crypto | Cryptography stuff (see crypto/README). |
| etc | Template files for /etc. |
| gnu | Various commands and libraries under the GNU Public License. Please see gnu/COPYING and gnu/COPYING.LIB for more information. |
| include | System include files. |
| kerberos5 | Kerberos5 (Heimdal) package. |
| lib | System libraries. |
| libexec | System daemons. |
| release | Release building Makefile & associated tools. |
| rescue | Build system for statically linked /rescue utilities. |
| sbin | System commands. |
| secure | Cryptographic libraries and commands. |
| share | Shared resources. |
| stand | Boot loader sources. |
| sys | Kernel sources. |
sys/arch/conf |
Kernel configuration files. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries. |
| tests | Regression tests which can be run by Kyua. See tests/README for additional information. |
| tools | Utilities for regression testing and miscellaneous tasks. |
| usr.bin | User commands. |
| usr.sbin | System administration commands. |
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