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    Subject[PATCH -V9 01/15] hugetlb: rename max_hstate to hugetlb_max_hstate
    Date
    From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>

    Rename max_hstate to hugetlb_max_hstate. We will be using this from other
    subsystems like hugetlb controller in later patches.

    Acked-by: David Rientjes <rientjes@google.com>
    Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    Acked-by: Hillf Danton <dhillf@gmail.com>
    Acked-by: Michal Hocko <mhocko@suse.cz>
    Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
    ---
    mm/hugetlb.c | 14 +++++++-------
    1 file changed, 7 insertions(+), 7 deletions(-)

    diff --git a/mm/hugetlb.c b/mm/hugetlb.c
    index e198831..c868309 100644
    --- a/mm/hugetlb.c
    +++ b/mm/hugetlb.c
    @@ -34,7 +34,7 @@ const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL;
    static gfp_t htlb_alloc_mask = GFP_HIGHUSER;
    unsigned long hugepages_treat_as_movable;

    -static int max_hstate;
    +static int hugetlb_max_hstate;
    unsigned int default_hstate_idx;
    struct hstate hstates[HUGE_MAX_HSTATE];

    @@ -46,7 +46,7 @@ static unsigned long __initdata default_hstate_max_huge_pages;
    static unsigned long __initdata default_hstate_size;

    #define for_each_hstate(h) \
    - for ((h) = hstates; (h) < &hstates[max_hstate]; (h)++)
    + for ((h) = hstates; (h) < &hstates[hugetlb_max_hstate]; (h)++)

    /*
    * Protects updates to hugepage_freelists, nr_huge_pages, and free_huge_pages
    @@ -1897,9 +1897,9 @@ void __init hugetlb_add_hstate(unsigned order)
    printk(KERN_WARNING "hugepagesz= specified twice, ignoring\n");
    return;
    }
    - BUG_ON(max_hstate >= HUGE_MAX_HSTATE);
    + BUG_ON(hugetlb_max_hstate >= HUGE_MAX_HSTATE);
    BUG_ON(order == 0);
    - h = &hstates[max_hstate++];
    + h = &hstates[hugetlb_max_hstate++];
    h->order = order;
    h->mask = ~((1ULL << (order + PAGE_SHIFT)) - 1);
    h->nr_huge_pages = 0;
    @@ -1920,10 +1920,10 @@ static int __init hugetlb_nrpages_setup(char *s)
    static unsigned long *last_mhp;

    /*
    - * !max_hstate means we haven't parsed a hugepagesz= parameter yet,
    + * !hugetlb_max_hstate means we haven't parsed a hugepagesz= parameter yet,
    * so this hugepages= parameter goes to the "default hstate".
    */
    - if (!max_hstate)
    + if (!hugetlb_max_hstate)
    mhp = &default_hstate_max_huge_pages;
    else
    mhp = &parsed_hstate->max_huge_pages;
    @@ -1942,7 +1942,7 @@ static int __init hugetlb_nrpages_setup(char *s)
    * But we need to allocate >= MAX_ORDER hstates here early to still
    * use the bootmem allocator.
    */
    - if (max_hstate && parsed_hstate->order >= MAX_ORDER)
    + if (hugetlb_max_hstate && parsed_hstate->order >= MAX_ORDER)
    hugetlb_hstate_alloc_pages(parsed_hstate);

    last_mhp = mhp;
    --
    1.7.10


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