diff options
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index e91b81b63670..ffbdfc86aedf 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2,7 +2,6 @@ * Generic hugetlb support. * (C) William Irwin, April 2004 */ -#include <linux/gfp.h> #include <linux/list.h> #include <linux/init.h> #include <linux/module.h> @@ -18,6 +17,7 @@ #include <linux/mutex.h> #include <linux/bootmem.h> #include <linux/sysfs.h> +#include <linux/slab.h> #include <asm/page.h> #include <asm/pgtable.h> @@ -546,6 +546,7 @@ static void free_huge_page(struct page *page) mapping = (struct address_space *) page_private(page); set_page_private(page, 0); + page->mapping = NULL; BUG_ON(page_count(page)); INIT_LIST_HEAD(&page->lru); @@ -1515,10 +1516,9 @@ static struct attribute_group hstate_attr_group = { .attrs = hstate_attrs, }; -static int __init hugetlb_sysfs_add_hstate(struct hstate *h, - struct kobject *parent, - struct kobject **hstate_kobjs, - struct attribute_group *hstate_attr_group) +static int hugetlb_sysfs_add_hstate(struct hstate *h, struct kobject *parent, + struct kobject **hstate_kobjs, + struct attribute_group *hstate_attr_group) { int retval; int hi = h - hstates; @@ -2088,7 +2088,7 @@ static void set_huge_ptep_writable(struct vm_area_struct *vma, entry = pte_mkwrite(pte_mkdirty(huge_ptep_get(ptep))); if (huge_ptep_set_access_flags(vma, address, ptep, entry, 1)) { - update_mmu_cache(vma, address, entry); + update_mmu_cache(vma, address, ptep); } } @@ -2448,8 +2448,10 @@ retry: spin_lock(&inode->i_lock); inode->i_blocks += blocks_per_huge_page(h); spin_unlock(&inode->i_lock); - } else + } else { lock_page(page); + page->mapping = HUGETLB_POISON; + } } /* @@ -2559,7 +2561,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, entry = pte_mkyoung(entry); if (huge_ptep_set_access_flags(vma, address, ptep, entry, flags & FAULT_FLAG_WRITE)) - update_mmu_cache(vma, address, entry); + update_mmu_cache(vma, address, ptep); out_page_table_lock: spin_unlock(&mm->page_table_lock); |