* Generic hugetlb support.
* (C) William Irwin, April 2004
*/
-#include <linux/gfp.h>
#include <linux/list.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/bootmem.h>
#include <linux/sysfs.h>
+#include <linux/slab.h>
#include <asm/page.h>
#include <asm/pgtable.h>
{
int i;
- if (unlikely(sz > MAX_ORDER_NR_PAGES)) {
+ if (unlikely(sz/PAGE_SIZE > MAX_ORDER_NR_PAGES)) {
clear_gigantic_page(page, addr, sz);
return;
}
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);
page = alloc_buddy_huge_page(h, vma, addr);
if (!page) {
hugetlb_put_quota(inode->i_mapping, chg);
- return ERR_PTR(-VM_FAULT_OOM);
+ return ERR_PTR(-VM_FAULT_SIGBUS);
}
}
if (!ret)
goto out;
+ /* Bail for signals. Probably ctrl-c from user */
+ if (signal_pending(current))
+ goto out;
}
/*
.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;
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);
}
}
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;
+ }
}
/*
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);