src-test2/sys/vm, branch releng/6.3

MFC rev 1.29 phys_pager.c

2007-11-10T11:23:01Z

Correct a copy and paste'o in phys_pager.c, we are talking about phys here and not about devices. PR: 93755 Approved by: imp (mentor, implicit when re-assigning the ticket to me). This includes another fix that is not part of CURRENT and RELENG_7 because that is not part of the code there anymore. Approved by: re (kensmith), imp (mentor)

MFC: Remove mpte optimization from pmap_enter_quick().

2007-11-05T16:18:00Z

There is a race with the current locking scheme and removing it should have no measurable performance impact. This fixes page faults leading to panics in pmap_enter_quick_locked() on amd64/i386. Requested by: alc@

MFC revision 1.389

2007-11-02T06:33:20Z

Correct an error in vm_map_sync(), nee vm_map_clean(), that has existed since revision 1.1. Specifically, neither traversal of the vm map checks whether the end of the vm map has been reached. Consequently, the first traversal can wrap around and bogusly return an error.

MFC: Allow recursion on the 'zones' internal UMA zone.

2007-10-18T18:45:53Z

MFC: Always use an exclusive lock on the leaf vnode during an open() when

2007-10-03T21:06:05Z

shared lookups are enabled. This closes a few races including a race where concurrent opens of a fifo could result in different v_fifoinfo structures in different threads.

MFC

2007-09-09T04:41:24Z

rev. 1.387 of src/sys/vm/vm_map.c rev. 1.120 of src/sys/vm/vm_map.h rev. 1.213 of src/sys/vm/vm_mmap.c Do not drop vm_map lock between doing vm_map_remove() and vm_map_insert(). For this, introduce vm_map_fixed() that does that for MAP_FIXED case. Tested by: Marc G. Fournier

Backport of optimized sx locks and rwlocks from FreeBSD 7.0.

2007-09-04T22:40:40Z

Reviewed by: attilio, jhb Obtained from: Juniper Networks

MFC revisions 1.375-1.377

2007-08-30T02:32:04Z

Use pmap_enter_object() in vm_map_pmap_enter() to reduce the locking overhead of premapping objects. Note: It was later discovered that this change addresses a race condition that is discussed by vm/vm_fault.c revision 1.216. Specifically, replacing pmap_enter_quick() by pmap_enter_object() addresses the race.

MFC revisions 1.288 and 1.289

2007-08-26T00:27:48Z

Eliminate the use of Giant from vm_daemon(). Replace the unconditional use of Giant in vm_pageout_scan() with VFS_LOCK_GIANT().

MFC revision 1.294

2007-08-25T19:42:29Z

Eliminate GIANT_REQUIRED from swap_pager_putpages().