[PATCH 10/10] x86, mm: Add early_pgt_buf_*

So we could use the left early pgt buf in BRK at first, then use new one. We avoid wasting in _BRK. Also we don't need to memblock_reserve that buf in brk again, because all BRK is reserved before. Signed-off-by: Yinghai Lu --- arch/x86/include/asm/init.h |3 +++ arch/x86/mm/init.c

[PATCH 10/10] x86, mm: Add early_pgt_buf_*

So we could use the left early pgt buf in BRK at first, then use new one. We avoid wasting in _BRK. Also we don't need to memblock_reserve that buf in brk again, because all BRK is reserved before. Signed-off-by: Yinghai Lu ying...@kernel.org --- arch/x86/include/asm/init.h |3 +++