src/sys/vm, branch release/2.0

This commit was manufactured by cvs2svn to create branch 'RELEASE_2_0'.

1994-11-22T10:57:37+00:00

This commit was manufactured by cvs2svn to create branch 'BETA_2_0'.

1994-11-21T07:33:22+00:00

Fixed return status from pagers. Ahem...the previous method would manufacture

1994-11-06T09:55:31+00:00

data when it couldn't get it legitimately. :-(

Submitted by:	John Dyson

Added support for starting the experimental "vmdaemon" system process.

1994-11-06T05:07:53+00:00

Enabled via REL2_1.

Added support for doing object collapses "on the fly". Enabled via REL2_1a.

Improved object collapses so that they can happen in more cases. Improved
sensing of modified pages to fix an apparant race condition and improve
clustered pageout opportunities. Fixed an "oops" with not restarting page
scan after a potential block in vm_pageout_clean() (not doing this can result
in strange behavior in some cases).

Submitted by:	John Dyson & David Greenman

Improved I/O error reporting.

1994-10-25T07:06:20+00:00

#if 0'd out the object cache trimming code - there are multiple ways

1994-10-25T05:35:44+00:00

that the pageout daemon can deadlock otherwise.

Submitted by:	John Dyson

Fixed object cache trimming policy so it actually works.

1994-10-23T21:03:09+00:00

Submitted by:	John Dyson

Adjusted reserved levels to fix a deadlock condition.

1994-10-23T20:53:33+00:00

Submitted by:	John Dyson

Changed a thread_sleep into an spl protected tsleep. A deadlock can occur

1994-10-23T06:15:04+00:00

otherwise. Minor efficiency improvement in vm_page_free().

Submitted by:	John Dyson

Contrary to my last commit here: NFS-swap is enabled automatically.

1994-10-22T17:53:35+00:00