src/sys/vm, branch releng/4.7

MFC: 1.268

2002-09-26T17:32:01Z

Modify vm_map_clean() (and thus the msync(2) system call) to support invalidation of cached pages for objects of type OBJT_DEVICE. Submitted by: Christian Zander Reviewed by: alc Approved by: re (jhb)

Reduce the maximum KVA reserved for swap meta structures from 70 to 32 MB.

2002-08-31T21:15:55Z

Reduce the swap meta calculation by a factor of 2, it's still massive overkill.

Unconditionally initialise z->znext, and remove the zone from the

2002-08-12T23:39:08Z

list of all zones if we fail to allocate KVA for it in zinitna(). Apparently this fixes panics while running sysctl on large-memory machines. This code is not present in -current. PR: kern/36605 Submitted by: Brian Buchanan

MFC RLIMIT_VMEM resource Stage I - limit the total virtual memory use for

2002-07-02T20:06:25Z

a process (exec() to be handled in Stage II).

MFC 1.201 - add a sequential iteration optimization to vm_object_page_clean().

2002-06-18T19:37:02Z

This greatly improves msync() and VM object flushing and greatly improves cpu overheads related to VM object flushing on large objects. Yahoo has been running this patch set since March (and it has also been in -current since March).

MFC: r1.75 - don't deadlock if the system is low on physical memory and

2002-03-12T18:25:26Z

malloc is called with both size > PAGE_SIZE and the M_NOWAIT flag set.

MFC: [vm/vm_contig.c rev 1.5] Call vm_page_unqueue_nowakeup()

2002-03-10T05:03:19Z

in contigmalloc1() rather than duplicating it.

MFC 1.213, fix mmap/msync bug which can panic the kernel

2002-03-08T17:22:20Z

MFC of the vm_daemon speedup when many shared pages and processes are present.

2002-03-06T22:44:24Z

For full log, see: Revision Changes Path 1.84 +19 -5 src/sys/alpha/alpha/pmap.c 1.316 +19 -8 src/sys/i386/i386/pmap.c 1.44 +19 -6 src/sys/ia64/ia64/pmap.c 1.14 +21 -1 src/sys/powerpc/powerpc/pmap.c 1.35 +19 -2 src/sys/sparc64/sparc64/pmap.c 1.11 +9 -0 src/sys/sparc64/sparc64/pv.c 1.42 +2 -2 src/sys/vm/pmap.h 1.189 +1 -1 src/sys/vm/vm_pageout.c

MFC __P() macro cleanup, register keyword removal in preparation for

2002-03-06T01:07:09Z

object->memq scan-marker work (similar to the buffer queue scan marker work).