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authorrrs <rrs@FreeBSD.org>2007-10-30 14:09:24 +0000
committerrrs <rrs@FreeBSD.org>2007-10-30 14:09:24 +0000
commit814ed57392bec9cf5be68e30ad73cd809079b7ed (patch)
tree06d1ed3e2635e73c3786a3d9087f96f533011d02 /sys/vm/phys_pager.c
parentd0be68189d3bb9676d666e1749a0a8d3a967577c (diff)
downloadFreeBSD-src-814ed57392bec9cf5be68e30ad73cd809079b7ed.zip
FreeBSD-src-814ed57392bec9cf5be68e30ad73cd809079b7ed.tar.gz
- Change the Time Wait of vtags value to match the cookie-life
- Select a tag gains ability to optionally save new tags off in the timewait system. - When looking up associations do not give back a stcb that is in the about-to-be-freed state, and instead continue looking for other candiates. - New function to query to see if value is in time-wait. - Timewait had a time comparison error that caused very few vtags to actually stay in time-wait. - When setting tags in time-wait, we now use the time requested NOT a fixed constant value. - sstat now gets the proper associd when we do the query. - When we process an association, we expect the tag chosen (if we have one from a cookie) to be in time-wait. Before we would NOT allow the assoc up by checking if its good. In theory this should have caused almost all assoc not to come up except for the time-comparison bug above (this bug was hidden by the time comparison bug :-D). - Don't save tags for nonce values in the time-wait cache since these are used only during cookie collisions and do not matter if they are unique or not. MFC after: 1 week
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