2006-09-02 Paolo Carlini <pcarlini@suse.de>

	    Richard Guenther  <rguenther@suse.de>

	PR libstdc++/24469
	* src/mt_allocator.cc (__pool<true>::_M_reserve_block,
	__pool<true>::_M_reclaim_block): Fix the logic to avoid
	races, exploit atomic counters stored in second part of
	the memory pointed by _M_used.
	(__pool<true>::_M_initialize): Adjust _M_used allocation.
	* include/ext/mt_allocator.h (__pool<true>::_Bin_record):
	Update comment.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116660 138bc75d-0d04-0410-961f-82ee72b054a4