Commit-ID: 1938931a20da89359fb3f1189d46f9b0f29e5117 Gitweb: http://git.kernel.org/tip/1938931a20da89359fb3f1189d46f9b0f29e5117 Author: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> AuthorDate: Tue, 7 Jun 2011 19:13:29 +0100 Committer: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx> CommitDate: Tue, 21 Jun 2011 13:07:14 -0700 x86, init : Move memblock_x86_reserve_range PGTABLE to find_early_table_space Now that find_early_table_space knows how to calculate the exact amout of memory needed by the kernel pagetable, we can reserve the range directly in find_early_table_space. This allows Xen to know what memory range these will occupy and therefore how to manage that memory. Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/1307470409-7654-3-git-send-email-stefano.stabellini@xxxxxxxxxxxxx Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx> --- arch/x86/mm/init.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 15590fd..36bacfe 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -104,6 +104,10 @@ static void __init find_early_table_space(unsigned long start, printk(KERN_DEBUG "kernel direct mapping tables up to %lx @ %lx-%lx\n", end, pgt_buf_start << PAGE_SHIFT, pgt_buf_top << PAGE_SHIFT); + + if (pgt_buf_top > pgt_buf_start) + memblock_x86_reserve_range(pgt_buf_start << PAGE_SHIFT, + pgt_buf_top << PAGE_SHIFT, "PGTABLE"); } struct map_range { @@ -301,10 +305,6 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, printk(KERN_DEBUG "initial kernel pagetable allocation wasted %lx" " pages\n", pgt_buf_top - pgt_buf_end); - if (!after_bootmem && pgt_buf_end > pgt_buf_start) - memblock_x86_reserve_range(pgt_buf_start << PAGE_SHIFT, - pgt_buf_end << PAGE_SHIFT, "PGTABLE"); - if (!after_bootmem) early_memtest(start, end); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html