#include <linux/time.h>
#include <linux/init.h>
#include <linux/string.h>
-#include <linux/smp_lock.h>
#include <linux/backing-dev.h>
#include <linux/mpage.h>
#include <linux/swap.h>
#include <linux/writeback.h>
#include <linux/bit_spinlock.h>
-#include <linux/version.h>
-#include <linux/pagevec.h>
+#include <linux/slab.h>
#include "compat.h"
#include "ctree.h"
#include "disk-io.h"
u32 csum;
u32 *cb_sum = &cb->sums;
- if (btrfs_test_flag(inode, NODATASUM))
+ if (BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)
return 0;
for (i = 0; i < cb->nr_pages; i++) {
kunmap_atomic(kaddr, KM_USER0);
if (csum != *cb_sum) {
- printk("btrfs csum failed ino %lu extent %llu csum %u "
+ printk(KERN_INFO "btrfs csum failed ino %lu "
+ "extent %llu csum %u "
"wanted %u mirror %d\n", inode->i_ino,
(unsigned long long)disk_start,
csum, *cb_sum, cb->mirror_num);
* we have verified the checksum already, set page
* checked so the end_io handlers know about it
*/
- while(bio_index < cb->orig_bio->bi_vcnt) {
+ while (bio_index < cb->orig_bio->bi_vcnt) {
SetPageChecked(bvec->bv_page);
bvec++;
bio_index++;
int i;
int ret;
- while(nr_pages > 0) {
+ while (nr_pages > 0) {
ret = find_get_pages_contig(inode->i_mapping, index,
min_t(unsigned long,
nr_pages, ARRAY_SIZE(pages)), pages);
unsigned long nr_pages = 0;
struct extent_map *em;
struct address_space *mapping = inode->i_mapping;
- struct pagevec pvec;
struct extent_map_tree *em_tree;
struct extent_io_tree *tree;
u64 end;
end_index = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT;
- pagevec_init(&pvec, 0);
- while(last_offset < compressed_end) {
+ while (last_offset < compressed_end) {
page_index = last_offset >> PAGE_CACHE_SHIFT;
if (page_index > end_index)
goto next;
}
- page = alloc_page(mapping_gfp_mask(mapping) | GFP_NOFS);
+ page = __page_cache_alloc(mapping_gfp_mask(mapping) &
+ ~__GFP_FS);
if (!page)
break;
- page->index = page_index;
- /*
- * what we want to do here is call add_to_page_cache_lru,
- * but that isn't exported, so we reproduce it here
- */
- if (add_to_page_cache(page, mapping,
- page->index, GFP_NOFS)) {
+ if (add_to_page_cache_lru(page, mapping, page_index,
+ GFP_NOFS)) {
page_cache_release(page);
goto next;
}
- /* open coding of lru_cache_add, also not exported */
- page_cache_get(page);
- if (!pagevec_add(&pvec, page))
- __pagevec_lru_add_file(&pvec);
-
end = last_offset + PAGE_CACHE_SIZE - 1;
/*
* at this point, we have a locked page in the page cache
*/
set_page_extent_mapped(page);
lock_extent(tree, last_offset, end, GFP_NOFS);
- spin_lock(&em_tree->lock);
+ read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, last_offset,
PAGE_CACHE_SIZE);
- spin_unlock(&em_tree->lock);
+ read_unlock(&em_tree->lock);
if (!em || last_offset < em->start ||
(last_offset + PAGE_CACHE_SIZE > extent_map_end(em)) ||
next:
last_offset += PAGE_CACHE_SIZE;
}
- if (pagevec_count(&pvec))
- __pagevec_lru_add_file(&pvec);
return 0;
}
em_tree = &BTRFS_I(inode)->extent_tree;
/* we need the actual starting offset of this extent in the file */
- spin_lock(&em_tree->lock);
+ read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree,
page_offset(bio->bi_io_vec->bv_page),
PAGE_CACHE_SIZE);
- spin_unlock(&em_tree->lock);
+ read_unlock(&em_tree->lock);
compressed_len = em->block_len;
cb = kmalloc(compressed_bio_size(root, compressed_len), GFP_NOFS);
*/
atomic_inc(&cb->pending_bios);
- if (!btrfs_test_flag(inode, NODATASUM)) {
+ if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {
btrfs_lookup_bio_sums(root, inode, comp_bio,
sums);
}
ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);
BUG_ON(ret);
- if (!btrfs_test_flag(inode, NODATASUM)) {
+ if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM))
btrfs_lookup_bio_sums(root, inode, comp_bio, sums);
- }
ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);
BUG_ON(ret);