src/sys/miscfs, branch release/2.1.7

Retrofitted changes from main branch: do pfsnode locking to prevent

1996-07-02T13:55:16Z

concurrent access. Fixes system hang resulting from multiple simultaneous ps(8)'s when coupled with heavy paging activity.

Retrofitted new procfs_rwmem() from main branch. This version is similar

1996-07-02T01:58:38Z

except that upages are handled differently in -stable. This version fixes a potentially serious hole dealing with incorrect object locking. Reviewed by: dyson

Brought in fix from rev 1.18: gain a reference to the vmspace and do

1996-06-18T08:36:18Z

proper map locking to avoid a potential panic.

Brought in changes from main branch: move MALLOC of fsnode to avoid a

1996-06-12T03:42:54Z

potential panic during sync.

Somehow got missed from the last commit. Stick these in -stable's

1996-06-09T11:22:22Z

attic as they are suffering from nasty bitrot

Fixed bogus changes from mega-commit 3. This reverts the files to their

1996-06-05T19:49:29Z

revisions *before* the mega-commit but makes sure any subsequent fixes are brought in. TODO - netiso

This 3rd mega-commit should hopefully bring us back to where we were.

1996-06-05T02:59:00Z

I can get it to `make world' succesfully, anyway!

Merge from HEAD:

1996-05-31T23:39:16Z

add ruid and rgid to file /proc//status this allow killall(1) to kill suid programs

If the process has successfully done a setuid, rip away read/write to

1996-02-23T15:12:02Z

the "ctl" file, otherwise it can be "attached" by the user while it has priviliged information in core. This is a small part of the fixes in -current.

Brought in changes from rev 1.10: add ability to have a fifo open for

1995-09-28T13:32:03Z

read & write simultaneously. Needed for proper SCO support.