inode.c (4aec2b52327b3a3a20faa3f1af3102c0d97c7c92) inode.c (190662b2128dd648749e197f5563e9f6bbb5e05c)
1/*
2 * Copyright (C) 2007 Oracle. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,

--- 784 unchanged lines hidden (view full) ---

793 size_t zero_start)
794{
795 char *kaddr;
796 int ret = 0;
797 struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
798 u64 page_start = (u64)page->index << PAGE_CACHE_SHIFT;
799 u64 page_end = page_start + PAGE_CACHE_SIZE - 1;
800
1/*
2 * Copyright (C) 2007 Oracle. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,

--- 784 unchanged lines hidden (view full) ---

793 size_t zero_start)
794{
795 char *kaddr;
796 int ret = 0;
797 struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
798 u64 page_start = (u64)page->index << PAGE_CACHE_SHIFT;
799 u64 page_end = page_start + PAGE_CACHE_SIZE - 1;
800
801 WARN_ON(!PageLocked(page));
801 set_page_extent_mapped(page);
802
803 lock_extent(em_tree, page_start, page_end, GFP_NOFS);
804 set_extent_delalloc(&BTRFS_I(inode)->extent_tree, page_start,
805 page_end, GFP_NOFS);
806 if (zero_start != PAGE_CACHE_SIZE) {
807 kaddr = kmap(page);
808 memset(kaddr + zero_start, 0, PAGE_CACHE_SIZE - zero_start);

--- 1927 unchanged lines hidden --- 		802 set_page_extent_mapped(page);
803
804 lock_extent(em_tree, page_start, page_end, GFP_NOFS);
805 set_extent_delalloc(&BTRFS_I(inode)->extent_tree, page_start,
806 page_end, GFP_NOFS);
807 if (zero_start != PAGE_CACHE_SIZE) {
808 kaddr = kmap(page);
809 memset(kaddr + zero_start, 0, PAGE_CACHE_SIZE - zero_start);

--- 1927 unchanged lines hidden ---