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| author | Andrew Morton <akpm@linux-foundation.org> | 2023-02-01 04:25:17 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-01 04:25:17 +0300 |
| commit | 5ab0fc155dc0cac3b74584f7bc972569b0f8a57b (patch) | |
| tree | fb43458b715be3a72c872bc4ce0e7c45e6f76ccb /include/linux/hugetlb.h | |
| parent | 9a3f21fe5cb9f5654ccad7ba712d868f7de66e39 (diff) | |
| parent | ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9 (diff) | |
| download | linux-5ab0fc155dc0cac3b74584f7bc972569b0f8a57b.tar.xz | |
Sync mm-stable with mm-hotfixes-stable to pick up dependent patches
Merge branch 'mm-hotfixes-stable' into mm-stable
Diffstat (limited to 'include/linux/hugetlb.h')
| -rw-r--r-- | include/linux/hugetlb.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index e3aa336df900..7d6413c3b8f5 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -8,6 +8,7 @@ #include <linux/fs.h> #include <linux/hugetlb_inline.h> #include <linux/cgroup.h> +#include <linux/page_ref.h> #include <linux/list.h> #include <linux/kref.h> #include <linux/pgtable.h> @@ -1225,6 +1226,18 @@ static inline __init void hugetlb_cma_reserve(int order) } #endif +#ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE +static inline bool hugetlb_pmd_shared(pte_t *pte) +{ + return page_count(virt_to_page(pte)) > 1; +} +#else +static inline bool hugetlb_pmd_shared(pte_t *pte) +{ + return false; +} +#endif + bool want_pmd_share(struct vm_area_struct *vma, unsigned long addr); #ifndef __HAVE_ARCH_FLUSH_HUGETLB_TLB_RANGE |