Messages in this thread Patch in this message | | | From | Luiz Capitulino <> | Subject | [PATCH 4/4] hugetlb: hugepagesnid=: add 1G huge page support | Date | Mon, 10 Feb 2014 12:27:48 -0500 |
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From: Luiz capitulino <lcapitulino@redhat.com>
Signed-off-by: Luiz capitulino <lcapitulino@redhat.com> --- mm/hugetlb.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 439c3b7..d759321 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2051,6 +2051,29 @@ void __init hugetlb_add_hstate(unsigned order) parsed_hstate = h; } +static void __init hugetlb_hstate_alloc_pages_nid(struct hstate *h, + int nid, + unsigned long nr_pages) +{ + struct huge_bootmem_page *m; + unsigned long i; + void *addr; + + for (i = 0; i < nr_pages; i++) { + addr = memblock_virt_alloc_nid_nopanic( + huge_page_size(h), huge_page_size(h), + 0, BOOTMEM_ALLOC_ACCESSIBLE, nid); + if (!addr) + break; + m = addr; + BUG_ON((unsigned long)virt_to_phys(m) & (huge_page_size(h) - 1)); + list_add(&m->list, &huge_boot_pages); + m->hstate = h; + } + + h->max_huge_pages += i; +} + void __init hugetlb_add_nrpages_nid(unsigned order, unsigned long nid, unsigned long nr_pages) { @@ -2080,6 +2103,9 @@ void __init hugetlb_add_nrpages_nid(unsigned order, unsigned long nid, } *p = nr_pages; + + if (h->order >= MAX_ORDER) + hugetlb_hstate_alloc_pages_nid(h, nid, nr_pages); } static int __init hugetlb_nrpages_setup(char *s) -- 1.8.1.4
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