EXPORT_SYMBOL(high_memory);
EXPORT_SYMBOL(vmalloc_earlyreserve);
+int randomize_va_space __read_mostly = 1;
+
+static int __init disable_randmaps(char *s)
+{
+ randomize_va_space = 0;
+ return 0;
+}
+__setup("norandmaps", disable_randmaps);
+
+
/*
* If a p?d_bad entry is found while walking page tables, report
* the error, before resetting entry to p?d_none. Usually (but
update_mmu_cache(vma, address, entry);
lazy_mmu_prot_update(entry);
lru_cache_add_active(new_page);
- page_add_anon_rmap(new_page, vma, address);
+ page_add_new_anon_rmap(new_page, vma, address);
/* Free the old page.. */
new_page = old_page;
if (!inode->i_op || !inode->i_op->truncate_range)
return -ENOSYS;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
down_write(&inode->i_alloc_sem);
unmap_mapping_range(mapping, offset, (end - offset), 1);
truncate_inode_pages_range(mapping, offset, end);
inode->i_op->truncate_range(inode, offset, end);
up_write(&inode->i_alloc_sem);
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
return 0;
}
goto out;
entry = pte_to_swp_entry(orig_pte);
+again:
page = lookup_swap_cache(entry);
if (!page) {
swapin_readahead(entry, address, vma);
mark_page_accessed(page);
lock_page(page);
+ if (!PageSwapCache(page)) {
+ /* Page migration has occured */
+ unlock_page(page);
+ page_cache_release(page);
+ goto again;
+ }
/*
* Back out if somebody else already faulted in this pte.
goto release;
inc_mm_counter(mm, anon_rss);
lru_cache_add_active(page);
- SetPageReferenced(page);
- page_add_anon_rmap(page, vma, address);
+ page_add_new_anon_rmap(page, vma, address);
} else {
/* Map the ZERO_PAGE - vm_page_prot is readonly */
page = ZERO_PAGE(address);
if (anon) {
inc_mm_counter(mm, anon_rss);
lru_cache_add_active(new_page);
- page_add_anon_rmap(new_page, vma, address);
+ page_add_new_anon_rmap(new_page, vma, address);
} else {
inc_mm_counter(mm, file_rss);
page_add_file_rmap(new_page);
return handle_pte_fault(mm, vma, address, pte, pmd, write_access);
}
+EXPORT_SYMBOL_GPL(__handle_mm_fault);
+
#ifndef __PAGETABLE_PUD_FOLDED
/*
* Allocate page upper directory.