Commit-ID: 876ee61aadf01aa0db981b5d249cbdd53dc28b5e Gitweb: http://git.kernel.org/tip/876ee61aadf01aa0db981b5d249cbdd53dc28b5e Author: Jan Beulich <JBeulich@xxxxxxxx> AuthorDate: Thu, 4 Oct 2012 14:48:10 +0100 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Wed, 24 Oct 2012 10:50:25 +0200 x86-64: Fix page table accounting Commit 20167d3421a089a1bf1bd680b150dc69c9506810 ("x86-64: Fix accounting in kernel_physical_mapping_init()") went a little too far by entirely removing the counting of pre-populated page tables: this should be done at boot time (to cover the page tables set up in early boot code), but shouldn't be done during memory hot add. Hence, re-add the removed increments of "pages", but make them and the one in phys_pte_init() conditional upon !after_bootmem. Reported-Acked-and-Tested-by: Hugh Dickins <hughd@xxxxxxxxxx> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Cc: <stable@xxxxxxxxxx> Link: http://lkml.kernel.org/r/506DAFBA020000780009FA8C@xxxxxxxxxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- arch/x86/mm/init_64.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 2b6b4a3..3baff25 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -386,7 +386,8 @@ phys_pte_init(pte_t *pte_page, unsigned long addr, unsigned long end, * these mappings are more intelligent. */ if (pte_val(*pte)) { - pages++; + if (!after_bootmem) + pages++; continue; } @@ -451,6 +452,8 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, * attributes. */ if (page_size_mask & (1 << PG_LEVEL_2M)) { + if (!after_bootmem) + pages++; last_map_addr = next; continue; } @@ -526,6 +529,8 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end, * attributes. */ if (page_size_mask & (1 << PG_LEVEL_1G)) { + if (!after_bootmem) + pages++; last_map_addr = next; continue; } -- 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