From: Matthew Wilcox <[email protected]> We don't actually care about the contents of the PUD, just set the bits to indicate presence and return.
Signed-off-by: Matthew Wilcox <[email protected]> --- mm/mincore.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/mm/mincore.c b/mm/mincore.c index 2a565ed..8e6ce12 100644 --- a/mm/mincore.c +++ b/mm/mincore.c @@ -108,6 +108,18 @@ static int mincore_unmapped_range(unsigned long addr, unsigned long end, return 0; } +static int mincore_pud_range(pud_t *pud, unsigned long addr, unsigned long end, + struct mm_walk *walk) +{ + unsigned char *vec = walk->private; + int nr = (end - addr) >> PAGE_SHIFT; + + memset(vec, 1, nr); + walk->private += nr; + + return 0; +} + static int mincore_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, struct mm_walk *walk) { @@ -176,6 +188,7 @@ static long do_mincore(unsigned long addr, unsigned long pages, unsigned char *v unsigned long end; int err; struct mm_walk mincore_walk = { + .pud_entry = mincore_pud_range, .pmd_entry = mincore_pte_range, .pte_hole = mincore_unmapped_range, .hugetlb_entry = mincore_hugetlb, -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
