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| author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-02-18 13:51:42 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-02-18 13:51:42 +1100 |
| commit | c58310bf4933986513020fa90b4190c7492995ae (patch) | |
| tree | 143f2c7578d02ebef5db8fc57ae69e951ae0e2ee /mm/hugetlb.c | |
| parent | 269cdfaf769f5cd831284cc831790c7c5038040f (diff) | |
| parent | 1309d4e68497184d2fd87e892ddf14076c2bda98 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index db861d8b6c28..cb1b3a7ecdfc 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -24,14 +24,15 @@ const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL; static unsigned long nr_huge_pages, free_huge_pages, resv_huge_pages; static unsigned long surplus_huge_pages; +static unsigned long nr_overcommit_huge_pages; unsigned long max_huge_pages; +unsigned long sysctl_overcommit_huge_pages; static struct list_head hugepage_freelists[MAX_NUMNODES]; static unsigned int nr_huge_pages_node[MAX_NUMNODES]; static unsigned int free_huge_pages_node[MAX_NUMNODES]; static unsigned int surplus_huge_pages_node[MAX_NUMNODES]; static gfp_t htlb_alloc_mask = GFP_HIGHUSER; unsigned long hugepages_treat_as_movable; -unsigned long nr_overcommit_huge_pages; static int hugetlb_next_nid; /* @@ -605,6 +606,17 @@ int hugetlb_treat_movable_handler(struct ctl_table *table, int write, return 0; } +int hugetlb_overcommit_handler(struct ctl_table *table, int write, + struct file *file, void __user *buffer, + size_t *length, loff_t *ppos) +{ + proc_doulongvec_minmax(table, write, file, buffer, length, ppos); + spin_lock(&hugetlb_lock); + nr_overcommit_huge_pages = sysctl_overcommit_huge_pages; + spin_unlock(&hugetlb_lock); + return 0; +} + #endif /* CONFIG_SYSCTL */ int hugetlb_report_meminfo(char *buf) @@ -813,6 +825,7 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, spin_unlock(&mm->page_table_lock); copy_huge_page(new_page, old_page, address, vma); + __SetPageUptodate(new_page); spin_lock(&mm->page_table_lock); ptep = huge_pte_offset(mm, address & HPAGE_MASK); @@ -858,6 +871,7 @@ retry: goto out; } clear_huge_page(page, address); + __SetPageUptodate(page); if (vma->vm_flags & VM_SHARED) { int err; |