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mirror of https://git.FreeBSD.org/src.git synced 2024-12-23 11:18:54 +00:00
freebsd/sys/sun4v
Alan Cox c46b90e90a Push down page queues lock acquisition in pmap_enter_object() and
pmap_is_referenced().  Eliminate the corresponding page queues lock
acquisitions from vm_map_pmap_enter() and mincore(), respectively.  In
mincore(), this allows some additional cases to complete without ever
acquiring the page queues lock.

Assert that the page is managed in pmap_is_referenced().

On powerpc/aim, push down the page queues lock acquisition from
moea*_is_modified() and moea*_is_referenced() into moea*_query_bit().
Again, this will allow some additional cases to complete without ever
acquiring the page queues lock.

Reorder a few statements in vm_page_dontneed() so that a race can't lead
to an old reference persisting.  This scenario is described in detail by a
comment.

Correct a spelling error in vm_page_dontneed().

Assert that the object is locked in vm_page_clear_dirty(), and restrict the
page queues lock assertion to just those cases in which the page is
currently writeable.

Add object locking to vnode_pager_generic_putpages().  This was the one
and only place where vm_page_clear_dirty() was being called without the
object being locked.

Eliminate an unnecessary vm_page_lock() around vnode_pager_setsize()'s call
to vm_page_clear_dirty().

Change vnode_pager_generic_putpages() to the modern-style of function
definition.  Also, change the name of one of the parameters to follow
virtual memory system naming conventions.

Reviewed by:	kib
2010-05-26 18:00:44 +00:00
..
cddl move CDDL licensed machine description support routine files to cddl directory 2006-11-24 01:56:46 +00:00
compile
conf Change USB_DEBUG to #ifdef and allow it to be turned off. Previously this had 2010-04-22 21:31:34 +00:00
include Reorganize syscall entry and leave handling. 2010-05-23 18:32:02 +00:00
mdesc This is a follow-up, cleaning-up commit about recent changes involving 2007-09-11 22:54:09 +00:00
sun4v Push down page queues lock acquisition in pmap_enter_object() and 2010-05-26 18:00:44 +00:00