}
#endif
-static struct extent_map_ops btree_extent_map_ops;
+static struct extent_io_ops btree_extent_io_ops;
struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root,
u64 bytenr, u32 blocksize)
{
struct inode *btree_inode = root->fs_info->btree_inode;
struct extent_buffer *eb;
- eb = find_extent_buffer(&BTRFS_I(btree_inode)->extent_tree,
+ eb = find_extent_buffer(&BTRFS_I(btree_inode)->io_tree,
bytenr, blocksize, GFP_NOFS);
return eb;
}
struct inode *btree_inode = root->fs_info->btree_inode;
struct extent_buffer *eb;
- eb = alloc_extent_buffer(&BTRFS_I(btree_inode)->extent_tree,
+ eb = alloc_extent_buffer(&BTRFS_I(btree_inode)->io_tree,
bytenr, blocksize, NULL, GFP_NOFS);
return eb;
}
struct extent_map *btree_get_extent(struct inode *inode, struct page *page,
- size_t page_offset, u64 start, u64 end,
+ size_t page_offset, u64 start, u64 len,
int create)
{
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
int ret;
again:
- em = lookup_extent_mapping(em_tree, start, end);
+ spin_lock(&em_tree->lock);
+ em = lookup_extent_mapping(em_tree, start, len);
+ spin_unlock(&em_tree->lock);
if (em) {
goto out;
}
goto out;
}
em->start = 0;
- em->end = (i_size_read(inode) & ~((u64)PAGE_CACHE_SIZE -1)) - 1;
+ em->len = i_size_read(inode);
em->block_start = 0;
- em->block_end = em->end;
em->bdev = inode->i_sb->s_bdev;
+
+ spin_lock(&em_tree->lock);
ret = add_extent_mapping(em_tree, em);
+ spin_unlock(&em_tree->lock);
+
if (ret == -EEXIST) {
free_extent_map(em);
em = NULL;
btrfs_csum_final(crc, result);
if (verify) {
- if (memcmp_extent_buffer(buf, result, 0, BTRFS_CRC32_SIZE)) {
- printk("btrfs: %s checksum verify failed on %llu\n",
+ int from_this_trans = 0;
+
+ if (root->fs_info->running_transaction &&
+ btrfs_header_generation(buf) ==
+ root->fs_info->running_transaction->transid)
+ from_this_trans = 1;
+
+ /* FIXME, this is not good */
+ if (from_this_trans == 0 &&
+ memcmp_extent_buffer(buf, result, 0, BTRFS_CRC32_SIZE)) {
+ u32 val;
+ u32 found = 0;
+ memcpy(&found, result, BTRFS_CRC32_SIZE);
+
+ read_extent_buffer(buf, &val, 0, BTRFS_CRC32_SIZE);
+ printk("btrfs: %s checksum verify failed on %llu "
+ "wanted %X found %X from_this_trans %d\n",
root->fs_info->sb->s_id,
- buf->start);
+ buf->start, val, found, from_this_trans);
return 1;
}
} else {
int csum_dirty_buffer(struct btrfs_root *root, struct page *page)
{
- struct extent_map_tree *tree;
+ struct extent_io_tree *tree;
u64 start = (u64)page->index << PAGE_CACHE_SHIFT;
u64 found_start;
int found_level;
unsigned long len;
struct extent_buffer *eb;
- tree = &BTRFS_I(page->mapping->host)->extent_tree;
+ tree = &BTRFS_I(page->mapping->host)->io_tree;
if (page->private == EXTENT_PAGE_PRIVATE)
goto out;
}
eb = alloc_extent_buffer(tree, start, len, page, GFP_NOFS);
read_extent_buffer_pages(tree, eb, start + PAGE_CACHE_SIZE, 1);
+ btrfs_clear_buffer_defrag(eb);
found_start = btrfs_header_bytenr(eb);
if (found_start != start) {
printk("warning: eb start incorrect %Lu buffer %Lu len %lu\n",
start, found_start, len);
+ WARN_ON(1);
+ goto err;
+ }
+ if (eb->first_page != page) {
+ printk("bad first page %lu %lu\n", eb->first_page->index,
+ page->index);
+ WARN_ON(1);
+ goto err;
+ }
+ if (!PageUptodate(page)) {
+ printk("csum not up to date page %lu\n", page->index);
+ WARN_ON(1);
+ goto err;
}
found_level = btrfs_header_level(eb);
csum_tree_block(root, eb, 0);
+err:
free_extent_buffer(eb);
out:
return 0;
static int btree_writepage(struct page *page, struct writeback_control *wbc)
{
- struct extent_map_tree *tree;
- tree = &BTRFS_I(page->mapping->host)->extent_tree;
+ struct extent_io_tree *tree;
+ tree = &BTRFS_I(page->mapping->host)->io_tree;
return extent_write_full_page(tree, page, btree_get_extent, wbc);
}
static int btree_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
- struct extent_map_tree *tree;
- tree = &BTRFS_I(mapping->host)->extent_tree;
- if (wbc->sync_mode == WB_SYNC_NONE && current_is_pdflush()) {
+ struct extent_io_tree *tree;
+ tree = &BTRFS_I(mapping->host)->io_tree;
+ if (wbc->sync_mode == WB_SYNC_NONE) {
u64 num_dirty;
u64 start = 0;
unsigned long thresh = 96 * 1024 * 1024;
- num_dirty = count_range_bits(tree, &start, thresh, EXTENT_DIRTY);
+
+ if (wbc->for_kupdate)
+ return 0;
+
+ if (current_is_pdflush()) {
+ thresh = 96 * 1024 * 1024;
+ } else {
+ thresh = 8 * 1024 * 1024;
+ }
+ num_dirty = count_range_bits(tree, &start, (u64)-1,
+ thresh, EXTENT_DIRTY);
if (num_dirty < thresh) {
return 0;
}
int btree_readpage(struct file *file, struct page *page)
{
- struct extent_map_tree *tree;
- tree = &BTRFS_I(page->mapping->host)->extent_tree;
+ struct extent_io_tree *tree;
+ tree = &BTRFS_I(page->mapping->host)->io_tree;
return extent_read_full_page(tree, page, btree_get_extent);
}
-static int btree_releasepage(struct page *page, gfp_t unused_gfp_flags)
+static int btree_releasepage(struct page *page, gfp_t gfp_flags)
{
- struct extent_map_tree *tree;
+ struct extent_io_tree *tree;
+ struct extent_map_tree *map;
int ret;
- tree = &BTRFS_I(page->mapping->host)->extent_tree;
- ret = try_release_extent_mapping(tree, page);
+ tree = &BTRFS_I(page->mapping->host)->io_tree;
+ map = &BTRFS_I(page->mapping->host)->extent_tree;
+ ret = try_release_extent_mapping(map, tree, page, gfp_flags);
if (ret == 1) {
ClearPagePrivate(page);
set_page_private(page, 0);
static void btree_invalidatepage(struct page *page, unsigned long offset)
{
- struct extent_map_tree *tree;
- tree = &BTRFS_I(page->mapping->host)->extent_tree;
+ struct extent_io_tree *tree;
+ tree = &BTRFS_I(page->mapping->host)->io_tree;
extent_invalidatepage(tree, page, offset);
btree_releasepage(page, GFP_NOFS);
}
buf = btrfs_find_create_tree_block(root, bytenr, blocksize);
if (!buf)
return 0;
- read_extent_buffer_pages(&BTRFS_I(btree_inode)->extent_tree,
+ read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
buf, 0, 0);
free_extent_buffer(buf);
return ret;
{
struct extent_buffer *buf = NULL;
struct inode *btree_inode = root->fs_info->btree_inode;
- struct extent_map_tree *extent_tree;
+ struct extent_io_tree *io_tree;
+ u64 end;
int ret;
- extent_tree = &BTRFS_I(btree_inode)->extent_tree;
+ io_tree = &BTRFS_I(btree_inode)->io_tree;
buf = btrfs_find_create_tree_block(root, bytenr, blocksize);
if (!buf)
return NULL;
- read_extent_buffer_pages(&BTRFS_I(btree_inode)->extent_tree,
- buf, 0, 1);
- if (buf->flags & EXTENT_CSUM) {
+ read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree, buf, 0, 1);
+
+ if (buf->flags & EXTENT_CSUM)
return buf;
- }
- if (test_range_bit(extent_tree, buf->start, buf->start + buf->len - 1,
- EXTENT_CSUM, 1)) {
+
+ end = buf->start + PAGE_CACHE_SIZE - 1;
+ if (test_range_bit(io_tree, buf->start, end, EXTENT_CSUM, 1)) {
buf->flags |= EXTENT_CSUM;
return buf;
}
+
+ lock_extent(io_tree, buf->start, end, GFP_NOFS);
+
+ if (test_range_bit(io_tree, buf->start, end, EXTENT_CSUM, 1)) {
+ buf->flags |= EXTENT_CSUM;
+ goto out_unlock;
+ }
+
ret = csum_tree_block(root, buf, 1);
- set_extent_bits(extent_tree, buf->start,
- buf->start + buf->len - 1,
- EXTENT_CSUM, GFP_NOFS);
+ set_extent_bits(io_tree, buf->start, end, EXTENT_CSUM, GFP_NOFS);
buf->flags |= EXTENT_CSUM;
+
+out_unlock:
+ unlock_extent(io_tree, buf->start, end, GFP_NOFS);
return buf;
}
struct extent_buffer *buf)
{
struct inode *btree_inode = root->fs_info->btree_inode;
- clear_extent_buffer_dirty(&BTRFS_I(btree_inode)->extent_tree, buf);
+ if (btrfs_header_generation(buf) ==
+ root->fs_info->running_transaction->transid)
+ clear_extent_buffer_dirty(&BTRFS_I(btree_inode)->io_tree,
+ buf);
return 0;
}
struct extent_buffer *buf)
{
struct inode *btree_inode = root->fs_info->btree_inode;
- wait_on_extent_buffer_writeback(&BTRFS_I(btree_inode)->extent_tree,
+ wait_on_extent_buffer_writeback(&BTRFS_I(btree_inode)->io_tree,
buf);
return 0;
}
static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
- struct btrfs_root *root,
+ u32 stripesize, struct btrfs_root *root,
struct btrfs_fs_info *fs_info,
u64 objectid)
{
root->sectorsize = sectorsize;
root->nodesize = nodesize;
root->leafsize = leafsize;
+ root->stripesize = stripesize;
root->ref_cows = 0;
root->fs_info = fs_info;
root->objectid = objectid;
root->highest_inode = 0;
root->last_inode_alloc = 0;
root->name = NULL;
+ root->in_sysfs = 0;
memset(&root->root_key, 0, sizeof(root->root_key));
memset(&root->root_item, 0, sizeof(root->root_item));
memset(&root->defrag_progress, 0, sizeof(root->defrag_progress));
memset(&root->root_kobj, 0, sizeof(root->root_kobj));
init_completion(&root->kobj_unregister);
- init_rwsem(&root->snap_sem);
root->defrag_running = 0;
root->defrag_level = 0;
root->root_key.objectid = objectid;
u32 blocksize;
__setup_root(tree_root->nodesize, tree_root->leafsize,
- tree_root->sectorsize, root, fs_info, objectid);
+ tree_root->sectorsize, tree_root->stripesize,
+ root, fs_info, objectid);
ret = btrfs_find_last_root(tree_root, objectid,
&root->root_item, &root->root_key);
BUG_ON(ret);
}
__setup_root(tree_root->nodesize, tree_root->leafsize,
- tree_root->sectorsize, root, fs_info,
- location->objectid);
+ tree_root->sectorsize, tree_root->stripesize,
+ root, fs_info, location->objectid);
path = btrfs_alloc_path();
BUG_ON(!path);
return root;
}
-struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info,
- struct btrfs_key *location,
- const char *name, int namelen)
+struct btrfs_root *btrfs_lookup_fs_root(struct btrfs_fs_info *fs_info,
+ u64 root_objectid)
+{
+ struct btrfs_root *root;
+
+ if (root_objectid == BTRFS_ROOT_TREE_OBJECTID)
+ return fs_info->tree_root;
+ if (root_objectid == BTRFS_EXTENT_TREE_OBJECTID)
+ return fs_info->extent_root;
+
+ root = radix_tree_lookup(&fs_info->fs_roots_radix,
+ (unsigned long)root_objectid);
+ return root;
+}
+
+struct btrfs_root *btrfs_read_fs_root_no_name(struct btrfs_fs_info *fs_info,
+ struct btrfs_key *location)
{
struct btrfs_root *root;
int ret;
+ if (location->objectid == BTRFS_ROOT_TREE_OBJECTID)
+ return fs_info->tree_root;
+ if (location->objectid == BTRFS_EXTENT_TREE_OBJECTID)
+ return fs_info->extent_root;
+
root = radix_tree_lookup(&fs_info->fs_roots_radix,
(unsigned long)location->objectid);
if (root)
kfree(root);
return ERR_PTR(ret);
}
+ ret = btrfs_find_dead_roots(fs_info->tree_root,
+ root->root_key.objectid, root);
+ BUG_ON(ret);
+
+ return root;
+}
+
+struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info,
+ struct btrfs_key *location,
+ const char *name, int namelen)
+{
+ struct btrfs_root *root;
+ int ret;
+
+ root = btrfs_read_fs_root_no_name(fs_info, location);
+ if (!root)
+ return NULL;
+
+ if (root->in_sysfs)
+ return root;
ret = btrfs_set_root_name(root, name, namelen);
if (ret) {
kfree(root);
return ERR_PTR(ret);
}
-
- ret = btrfs_find_dead_roots(fs_info->tree_root,
- root->root_key.objectid, root);
- BUG_ON(ret);
-
+ root->in_sysfs = 1;
return root;
}
#if 0
u32 nodesize;
u32 leafsize;
u32 blocksize;
+ u32 stripesize;
struct btrfs_root *extent_root = kmalloc(sizeof(struct btrfs_root),
GFP_NOFS);
struct btrfs_root *tree_root = kmalloc(sizeof(struct btrfs_root),
INIT_LIST_HEAD(&fs_info->dead_roots);
INIT_LIST_HEAD(&fs_info->hashers);
spin_lock_init(&fs_info->hash_lock);
+ spin_lock_init(&fs_info->delalloc_lock);
+ spin_lock_init(&fs_info->new_trans_lock);
memset(&fs_info->super_kobj, 0, sizeof(fs_info->super_kobj));
init_completion(&fs_info->kobj_unregister);
fs_info->tree_root = tree_root;
fs_info->extent_root = extent_root;
fs_info->sb = sb;
+ fs_info->throttles = 0;
+ fs_info->mount_opt = 0;
+ fs_info->max_extent = (u64)-1;
+ fs_info->max_inline = 8192 * 1024;
+ fs_info->delalloc_bytes = 0;
fs_info->btree_inode = new_inode(sb);
fs_info->btree_inode->i_ino = 1;
fs_info->btree_inode->i_nlink = 1;
fs_info->btree_inode->i_size = sb->s_bdev->bd_inode->i_size;
fs_info->btree_inode->i_mapping->a_ops = &btree_aops;
- extent_map_tree_init(&BTRFS_I(fs_info->btree_inode)->extent_tree,
+ extent_io_tree_init(&BTRFS_I(fs_info->btree_inode)->io_tree,
fs_info->btree_inode->i_mapping,
GFP_NOFS);
- BTRFS_I(fs_info->btree_inode)->extent_tree.ops = &btree_extent_map_ops;
+ extent_map_tree_init(&BTRFS_I(fs_info->btree_inode)->extent_tree,
+ GFP_NOFS);
- extent_map_tree_init(&fs_info->free_space_cache,
+ BTRFS_I(fs_info->btree_inode)->io_tree.ops = &btree_extent_io_ops;
+
+ extent_io_tree_init(&fs_info->free_space_cache,
fs_info->btree_inode->i_mapping, GFP_NOFS);
- extent_map_tree_init(&fs_info->block_group_cache,
+ extent_io_tree_init(&fs_info->block_group_cache,
fs_info->btree_inode->i_mapping, GFP_NOFS);
- extent_map_tree_init(&fs_info->pinned_extents,
+ extent_io_tree_init(&fs_info->pinned_extents,
fs_info->btree_inode->i_mapping, GFP_NOFS);
- extent_map_tree_init(&fs_info->pending_del,
+ extent_io_tree_init(&fs_info->pending_del,
fs_info->btree_inode->i_mapping, GFP_NOFS);
- extent_map_tree_init(&fs_info->extent_ins,
+ extent_io_tree_init(&fs_info->extent_ins,
fs_info->btree_inode->i_mapping, GFP_NOFS);
fs_info->do_barriers = 1;
fs_info->closing = 0;
fs_info->total_pinned = 0;
+ fs_info->last_alloc = 0;
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
+ INIT_WORK(&fs_info->trans_work, btrfs_transaction_cleaner, fs_info);
+#else
INIT_DELAYED_WORK(&fs_info->trans_work, btrfs_transaction_cleaner);
+#endif
BTRFS_I(fs_info->btree_inode)->root = tree_root;
memset(&BTRFS_I(fs_info->btree_inode)->location, 0,
sizeof(struct btrfs_key));
goto fail_iput;
}
#endif
- __setup_root(512, 512, 512, tree_root,
+ __setup_root(512, 512, 512, 512, tree_root,
fs_info, BTRFS_ROOT_TREE_OBJECTID);
fs_info->sb_buffer = read_tree_block(tree_root,
nodesize = btrfs_super_nodesize(disk_super);
leafsize = btrfs_super_leafsize(disk_super);
sectorsize = btrfs_super_sectorsize(disk_super);
+ stripesize = btrfs_super_stripesize(disk_super);
tree_root->nodesize = nodesize;
tree_root->leafsize = leafsize;
tree_root->sectorsize = sectorsize;
+ tree_root->stripesize = stripesize;
sb_set_blocksize(sb, sectorsize);
i_size_write(fs_info->btree_inode,
int ret;
struct extent_buffer *super = root->fs_info->sb_buffer;
struct inode *btree_inode = root->fs_info->btree_inode;
+ struct super_block *sb = root->fs_info->sb;
- set_extent_buffer_dirty(&BTRFS_I(btree_inode)->extent_tree, super);
+ if (!btrfs_test_opt(root, NOBARRIER))
+ blkdev_issue_flush(sb->s_bdev, NULL);
+ set_extent_buffer_dirty(&BTRFS_I(btree_inode)->io_tree, super);
ret = sync_page_range_nolock(btree_inode, btree_inode->i_mapping,
super->start, super->len);
+ if (!btrfs_test_opt(root, NOBARRIER))
+ blkdev_issue_flush(sb->s_bdev, NULL);
return ret;
}
{
radix_tree_delete(&fs_info->fs_roots_radix,
(unsigned long)root->root_key.objectid);
- btrfs_sysfs_del_root(root);
+ if (root->in_sysfs)
+ btrfs_sysfs_del_root(root);
if (root->inode)
iput(root->inode);
if (root->node)
write_ctree_super(NULL, root);
mutex_unlock(&fs_info->fs_mutex);
+ if (fs_info->delalloc_bytes) {
+ printk("btrfs: at unmount delalloc count %Lu\n",
+ fs_info->delalloc_bytes);
+ }
if (fs_info->extent_root->node)
free_extent_buffer(fs_info->extent_root->node);
btrfs_free_block_groups(root->fs_info);
del_fs_roots(fs_info);
- extent_map_tree_empty_lru(&BTRFS_I(fs_info->btree_inode)->extent_tree);
+
+ filemap_write_and_wait(fs_info->btree_inode->i_mapping);
+
+ extent_io_tree_empty_lru(&fs_info->free_space_cache);
+ extent_io_tree_empty_lru(&fs_info->block_group_cache);
+ extent_io_tree_empty_lru(&fs_info->pinned_extents);
+ extent_io_tree_empty_lru(&fs_info->pending_del);
+ extent_io_tree_empty_lru(&fs_info->extent_ins);
+ extent_io_tree_empty_lru(&BTRFS_I(fs_info->btree_inode)->io_tree);
+
truncate_inode_pages(fs_info->btree_inode->i_mapping, 0);
+
iput(fs_info->btree_inode);
#if 0
while(!list_empty(&fs_info->hashers)) {
int btrfs_buffer_uptodate(struct extent_buffer *buf)
{
struct inode *btree_inode = buf->first_page->mapping->host;
- return extent_buffer_uptodate(&BTRFS_I(btree_inode)->extent_tree, buf);
+ return extent_buffer_uptodate(&BTRFS_I(btree_inode)->io_tree, buf);
}
int btrfs_set_buffer_uptodate(struct extent_buffer *buf)
{
struct inode *btree_inode = buf->first_page->mapping->host;
- return set_extent_buffer_uptodate(&BTRFS_I(btree_inode)->extent_tree,
+ return set_extent_buffer_uptodate(&BTRFS_I(btree_inode)->io_tree,
buf);
}
transid, root->fs_info->generation);
WARN_ON(1);
}
- set_extent_buffer_dirty(&BTRFS_I(btree_inode)->extent_tree, buf);
+ set_extent_buffer_dirty(&BTRFS_I(btree_inode)->io_tree, buf);
+}
+
+void btrfs_throttle(struct btrfs_root *root)
+{
+ struct backing_dev_info *bdi;
+
+ bdi = root->fs_info->sb->s_bdev->bd_inode->i_mapping->backing_dev_info;
+ if (root->fs_info->throttles && bdi_write_congested(bdi)) {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)
+ congestion_wait(WRITE, HZ/20);
+#else
+ blk_congestion_wait(WRITE, HZ/20);
+#endif
+ }
}
void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr)
{
struct btrfs_root *root = BTRFS_I(buf->first_page->mapping->host)->root;
struct inode *btree_inode = root->fs_info->btree_inode;
- set_extent_bits(&BTRFS_I(btree_inode)->extent_tree, buf->start,
+ set_extent_bits(&BTRFS_I(btree_inode)->io_tree, buf->start,
buf->start + buf->len - 1, EXTENT_DEFRAG, GFP_NOFS);
}
{
struct btrfs_root *root = BTRFS_I(buf->first_page->mapping->host)->root;
struct inode *btree_inode = root->fs_info->btree_inode;
- set_extent_bits(&BTRFS_I(btree_inode)->extent_tree, buf->start,
+ set_extent_bits(&BTRFS_I(btree_inode)->io_tree, buf->start,
buf->start + buf->len - 1, EXTENT_DEFRAG_DONE,
GFP_NOFS);
}
{
struct btrfs_root *root = BTRFS_I(buf->first_page->mapping->host)->root;
struct inode *btree_inode = root->fs_info->btree_inode;
- return test_range_bit(&BTRFS_I(btree_inode)->extent_tree,
+ return test_range_bit(&BTRFS_I(btree_inode)->io_tree,
buf->start, buf->start + buf->len - 1, EXTENT_DEFRAG, 0);
}
{
struct btrfs_root *root = BTRFS_I(buf->first_page->mapping->host)->root;
struct inode *btree_inode = root->fs_info->btree_inode;
- return test_range_bit(&BTRFS_I(btree_inode)->extent_tree,
+ return test_range_bit(&BTRFS_I(btree_inode)->io_tree,
buf->start, buf->start + buf->len - 1,
EXTENT_DEFRAG_DONE, 0);
}
{
struct btrfs_root *root = BTRFS_I(buf->first_page->mapping->host)->root;
struct inode *btree_inode = root->fs_info->btree_inode;
- return clear_extent_bits(&BTRFS_I(btree_inode)->extent_tree,
+ return clear_extent_bits(&BTRFS_I(btree_inode)->io_tree,
buf->start, buf->start + buf->len - 1,
EXTENT_DEFRAG_DONE, GFP_NOFS);
}
{
struct btrfs_root *root = BTRFS_I(buf->first_page->mapping->host)->root;
struct inode *btree_inode = root->fs_info->btree_inode;
- return clear_extent_bits(&BTRFS_I(btree_inode)->extent_tree,
+ return clear_extent_bits(&BTRFS_I(btree_inode)->io_tree,
buf->start, buf->start + buf->len - 1,
EXTENT_DEFRAG, GFP_NOFS);
}
{
struct btrfs_root *root = BTRFS_I(buf->first_page->mapping->host)->root;
struct inode *btree_inode = root->fs_info->btree_inode;
- return read_extent_buffer_pages(&BTRFS_I(btree_inode)->extent_tree,
+ return read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
buf, 0, 1);
}
-static struct extent_map_ops btree_extent_map_ops = {
+static struct extent_io_ops btree_extent_io_ops = {
.writepage_io_hook = btree_writepage_io_hook,
};
projects / linux-2.6-omap-h63xx.git / blobdiff