kernel: Break thread-related AutoLockers into a separate header.

Including thread.h brings a massive array of things with it from
the kernel thread arch headers, team and thread definitions,
hash tables, linked lists, Referenceable, etc. that the vast majority
of AutoLock.h consumers neither want nor need.

So, put these in a separate header, and adjust all consumers of these
lockers to include the new file.

This change exposes the fact that a lot of files were inadvertently
making use of headers included indirectly through thread.h. Those
will be fixed in the next commit.

Add debug helper functions to mark pages present.

They can be used to mark pages as present/non-present without actually
unmapping them. Marking pages as non-present causes every access to
fault. We can use that for debugging as it allows us to "read protect"
individual kernel pages.

Merged the signals branch into trunk, with these changes:
* The team and thread kernel structures have been renamed to Team and Thread
respectively and moved into the new BKernel namespace.
* Several (kernel add-on) sources have been converted from C to C++ since
private kernel headers are included that are no longer C compatible.

Changes after merging:
* Fixed gcc 2 build (warnings mainly in the scary firewire bus manager).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40196 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved the vm_page initialization from vm_page.cpp:vm_page_init() to the new
vm_page::Init().
* Made vm_page::wired_count private and added accessor methods.
* Added VMCache::fWiredPagesCount (the number of wired pages the cache
contains) and accessor methods.
* Made more use of vm_page::IsMapped().
* vm_copy_on_write_area(): Added vm_page_reservation* parameter that can be
used to request a special handling for wired pages. If given the wired pages
are replaced by copies and the original pages are moved to the upper cache.
* vm_copy_area():
- We don't need to do any wired ranges handling, if the source area is a
B_SHARED_AREA, since we don't touch the area's mappings in this case.
- We no longer wait for wired ranges of the concerned areas to disappear.
Instead we use the new vm_copy_on_write_area() feature and just let it
copy the wired pages. This fixes #6288, an issue introduced with the use
of user mutexes in libroot: When executing multiple concurrent fork()s all
but the first one would wait on the fork mutex, which (being a user mutex)
would wire a page that the vm_copy_area() of the first fork() would wait
for.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37460 a95241bf-73f2-0310-859d-f6bbb57e9c96

UnmapPages(): Avoid potential integer overflow.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37192 a95241bf-73f2-0310-859d-f6bbb57e9c96

Unmap(),Protect(): Removed goto programming by a do {} while loop. Also fixed
problem with potential integer overflow at the end of the address space.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37190 a95241bf-73f2-0310-859d-f6bbb57e9c96

Use InvalidatePage() instead of playing with the invalidation cache by hand.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37189 a95241bf-73f2-0310-859d-f6bbb57e9c96

Moved duplicate code from the VMTranslationMap subclasses' UnmapPage() and
ClearAccessedAndModified() implementations into helper methods PageUnmapped()
and UnaccessedPageUnmapped() in the base class.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37187 a95241bf-73f2-0310-859d-f6bbb57e9c96

X86VMTranslationMap{32bit,PAE}::UnmapPage(): Added some helpful output to
asserts.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37128 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved X86VMTranslationMap32Bit to its own source file.
* Made all helper function operating on paging structures static methods of
X86PagingMethod32Bit.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37064 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add debug helper functions to mark pages present.

They can be used to mark pages as present/non-present without actually
unmapping them. Marking pages as non-present causes every access to
fault. We can use that for debugging as it allows us to "read protect"
individual kernel pages.

Merged the signals branch into trunk, with these changes:
* The team and thread kernel structures have been renamed to Team and Thread
respectively and moved into the new BKernel namespace.
* Several (kernel add-on) sources have been converted from C to C++ since
private kernel headers are included that are no longer C compatible.

Changes after merging:
* Fixed gcc 2 build (warnings mainly in the scary firewire bus manager).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40196 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved the vm_page initialization from vm_page.cpp:vm_page_init() to the new
vm_page::Init().
* Made vm_page::wired_count private and added accessor methods.
* Added VMCache::fWiredPagesCount (the number of wired pages the cache
contains) and accessor methods.
* Made more use of vm_page::IsMapped().
* vm_copy_on_write_area(): Added vm_page_reservation* parameter that can be
used to request a special handling for wired pages. If given the wired pages
are replaced by copies and the original pages are moved to the upper cache.
* vm_copy_area():
- We don't need to do any wired ranges handling, if the source area is a
B_SHARED_AREA, since we don't touch the area's mappings in this case.
- We no longer wait for wired ranges of the concerned areas to disappear.
Instead we use the new vm_copy_on_write_area() feature and just let it
copy the wired pages. This fixes #6288, an issue introduced with the use
of user mutexes in libroot: When executing multiple concurrent fork()s all
but the first one would wait on the fork mutex, which (being a user mutex)
would wire a page that the vm_copy_area() of the first fork() would wait
for.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37460 a95241bf-73f2-0310-859d-f6bbb57e9c96

UnmapPages(): Avoid potential integer overflow.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37192 a95241bf-73f2-0310-859d-f6bbb57e9c96

Unmap(),Protect(): Removed goto programming by a do {} while loop. Also fixed
problem with potential integer overflow at the end of the address space.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37190 a95241bf-73f2-0310-859d-f6bbb57e9c96

Use InvalidatePage() instead of playing with the invalidation cache by hand.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37189 a95241bf-73f2-0310-859d-f6bbb57e9c96

Moved duplicate code from the VMTranslationMap subclasses' UnmapPage() and
ClearAccessedAndModified() implementations into helper methods PageUnmapped()
and UnaccessedPageUnmapped() in the base class.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37187 a95241bf-73f2-0310-859d-f6bbb57e9c96

X86VMTranslationMap{32bit,PAE}::UnmapPage(): Added some helpful output to
asserts.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37128 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved X86VMTranslationMap32Bit to its own source file.
* Made all helper function operating on paging structures static methods of
X86PagingMethod32Bit.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37064 a95241bf-73f2-0310-859d-f6bbb57e9c96