src/sys/vm, branch release/2.2.6

MFC: mmap for char device patch

1998-03-12T19:36:50Z

MFC: move 'sw' device away from being trampled by 'wfd'.

1998-02-19T12:19:48Z

- MFC:

1998-02-14T16:13:27Z

revision 1.85 date: 1998/02/03 00:50:36; author: dyson; state: Exp; lines: +65 -36 This fix should help the panic problems in -current. There were some errors in "interval" management. Due to the clustering mechanism, the code is necessarily complex and error prone. Reviewed by: a number of folks on -stable [ The same code exists in both branches, and the patch seems to give no ill effects to testers. ]

Fix (finally, I hope) the missing page allocation problem. The mod

1997-11-06T04:33:01Z

will be signficantly different in -current.

Bring some fixes from -current into -stable. A couple of them are

1997-11-04T09:02:38Z

map optims from Alan Cox (alc@cs.rice.edu.) Also, there is an incorrectly handled panic and inefficient/improper map upgrade fixed.

Make sure that we check properly for what queue a page was on for

1997-11-04T06:27:13Z

pagedaemon wakeups. Brought from -current.

YAMFC (NFS mmap fixes and minor memory leak plugged)

1997-05-28T18:26:46Z

Reviewed by: Randy Terbush

Merged from -current: Killed exech_map and do image header reads in a FS-

1997-04-03T06:37:49Z

centric way instead of VM-centric. This appears to fix a hang that Peter was seeing as well as allowing detection of errors during the header read (important for NFS).

1. Fix the vm_page_zero_count accounting. This should improve the

1997-03-25T04:54:38Z

performance of the pre-zero loop. 2. Fix madvise. It had a myriad of bugs, including the potential for system crashes. 3. Improve vm_map handling. This is a result of work done by both (Alan Cox) and me. Earlier versions of the map handling code was very unintelligent about map coalescing. 4. Support a working and closer to POSIX mlock. 5. A couple of performance enhancements that came along for the ride, including changing certain bitfields to flags in vm_map. 6. Bring procfs up to date with respect to the changes. This code has been carefully extracted from -current. Reviewed by: David Greenman

YAMFC (do spl0() in fork1() and not in kernel processes).

1997-02-13T08:17:32Z