int read_only);
static void btrfs_destroy_ordered_extents(struct btrfs_root *root);
static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
- struct btrfs_root *root);
+ struct btrfs_fs_info *fs_info);
static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root);
-static int btrfs_destroy_marked_extents(struct btrfs_root *root,
+static int btrfs_destroy_marked_extents(struct btrfs_fs_info *fs_info,
struct extent_io_tree *dirty_pages,
int mark);
-static int btrfs_destroy_pinned_extent(struct btrfs_root *root,
+static int btrfs_destroy_pinned_extent(struct btrfs_fs_info *fs_info,
struct extent_io_tree *pinned_extents);
-static int btrfs_cleanup_transaction(struct btrfs_root *root);
-static void btrfs_error_commit_super(struct btrfs_root *root);
+static int btrfs_cleanup_transaction(struct btrfs_fs_info *fs_info);
+static void btrfs_error_commit_super(struct btrfs_fs_info *fs_info);
/*
* btrfs_end_io_wq structs are used to do processing in task context when an IO
struct page *page, size_t pg_offset, u64 start, u64 len,
int create)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
struct extent_map *em;
int ret;
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, start, len);
if (em) {
- em->bdev =
- BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
read_unlock(&em_tree->lock);
goto out;
}
em->len = (u64)-1;
em->block_len = (u64)-1;
em->block_start = 0;
- em->bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
write_lock(&em_tree->lock);
ret = add_extent_mapping(em_tree, em, 0);
return btrfs_crc32c(seed, data, len);
}
-void btrfs_csum_final(u32 crc, char *result)
+void btrfs_csum_final(u32 crc, u8 *result)
{
put_unaligned_le32(~crc, result);
}
* helper to read a given tree block, doing retries as required when
* the checksums don't match and we have alternate mirrors to try.
*/
-static int btree_read_extent_buffer_pages(struct btrfs_root *root,
+static int btree_read_extent_buffer_pages(struct btrfs_fs_info *fs_info,
struct extent_buffer *eb,
u64 parent_transid)
{
int failed_mirror = 0;
clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
- io_tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree;
+ io_tree = &BTRFS_I(fs_info->btree_inode)->io_tree;
while (1) {
ret = read_extent_buffer_pages(io_tree, eb, WAIT_COMPLETE,
btree_get_extent, mirror_num);
if (test_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags))
break;
- num_copies = btrfs_num_copies(root->fs_info,
+ num_copies = btrfs_num_copies(fs_info,
eb->start, eb->len);
if (num_copies == 1)
break;
}
if (failed && !ret && failed_mirror)
- repair_eb_io_failure(root, eb, failed_mirror);
+ repair_eb_io_failure(fs_info, eb, failed_mirror);
return ret;
}
return ret;
}
-#define CORRUPT(reason, eb, root, slot) \
- btrfs_crit(root->fs_info, "corrupt %s, %s: block=%llu," \
- " root=%llu, slot=%d", \
- btrfs_header_level(eb) == 0 ? "leaf" : "node",\
+#define CORRUPT(reason, eb, root, slot) \
+ btrfs_crit(root->fs_info, \
+ "corrupt %s, %s: block=%llu, root=%llu, slot=%d", \
+ btrfs_header_level(eb) == 0 ? "leaf" : "node", \
reason, btrfs_header_bytenr(eb), root->objectid, slot)
static noinline int check_leaf(struct btrfs_root *root,
struct extent_buffer *leaf)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key key;
struct btrfs_key leaf_key;
u32 nritems = btrfs_header_nritems(leaf);
key.type = BTRFS_ROOT_ITEM_KEY;
key.offset = (u64)-1;
- check_root = btrfs_get_fs_root(root->fs_info, &key, false);
+ check_root = btrfs_get_fs_root(fs_info, &key, false);
/*
* The only reason we also check NULL here is that during
* open_ctree() some roots has not yet been set up.
/* Check the 0 item */
if (btrfs_item_offset_nr(leaf, 0) + btrfs_item_size_nr(leaf, 0) !=
- BTRFS_LEAF_DATA_SIZE(root)) {
+ BTRFS_LEAF_DATA_SIZE(fs_info)) {
CORRUPT("invalid item offset size pair", leaf, root, 0);
return -EIO;
}
* all point outside of the leaf.
*/
if (btrfs_item_end_nr(leaf, slot) >
- BTRFS_LEAF_DATA_SIZE(root)) {
+ BTRFS_LEAF_DATA_SIZE(fs_info)) {
CORRUPT("slot end outside of leaf", leaf, root, slot);
return -EIO;
}
u64 bytenr;
int ret = 0;
- if (nr == 0 || nr > BTRFS_NODEPTRS_PER_BLOCK(root)) {
+ if (nr == 0 || nr > BTRFS_NODEPTRS_PER_BLOCK(root->fs_info)) {
btrfs_crit(root->fs_info,
"corrupt node: block %llu root %llu nritems %lu",
node->start, root->objectid, nr);
err:
if (reads_done &&
test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))
- btree_readahead_hook(fs_info, eb, eb->start, ret);
+ btree_readahead_hook(fs_info, eb, ret);
if (ret) {
/*
eb->read_mirror = failed_mirror;
atomic_dec(&eb->io_pages);
if (test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))
- btree_readahead_hook(eb->fs_info, eb, eb->start, -EIO);
+ btree_readahead_hook(eb->fs_info, eb, -EIO);
return -EIO; /* we fixed nothing */
}
* when we're called for a write, we're already in the async
* submission context. Just jump into btrfs_map_bio
*/
- ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 1);
+ ret = btrfs_map_bio(btrfs_sb(inode->i_sb), bio, mirror_num, 1);
if (ret) {
bio->bi_error = ret;
bio_endio(bio);
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int async = check_async_write(inode, bio_flags);
int ret;
* called for a read, do the setup so that checksum validation
* can happen in the async kernel threads
*/
- ret = btrfs_bio_wq_end_io(BTRFS_I(inode)->root->fs_info,
- bio, BTRFS_WQ_ENDIO_METADATA);
+ ret = btrfs_bio_wq_end_io(fs_info, bio,
+ BTRFS_WQ_ENDIO_METADATA);
if (ret)
goto out_w_error;
- ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 0);
+ ret = btrfs_map_bio(fs_info, bio, mirror_num, 0);
} else if (!async) {
ret = btree_csum_one_bio(bio);
if (ret)
goto out_w_error;
- ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 0);
+ ret = btrfs_map_bio(fs_info, bio, mirror_num, 0);
} else {
/*
* kthread helpers are used to submit writes so that
* checksumming can happen in parallel across all CPUs
*/
- ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
- inode, bio, mirror_num, 0,
+ ret = btrfs_wq_submit_bio(fs_info, inode, bio, mirror_num, 0,
bio_offset,
__btree_submit_bio_start,
__btree_submit_bio_done);
.set_page_dirty = btree_set_page_dirty,
};
-void readahead_tree_block(struct btrfs_root *root, u64 bytenr)
+void readahead_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr)
{
struct extent_buffer *buf = NULL;
- struct inode *btree_inode = root->fs_info->btree_inode;
+ struct inode *btree_inode = fs_info->btree_inode;
- buf = btrfs_find_create_tree_block(root, bytenr);
+ buf = btrfs_find_create_tree_block(fs_info, bytenr);
if (IS_ERR(buf))
return;
read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
free_extent_buffer(buf);
}
-int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr,
+int reada_tree_block_flagged(struct btrfs_fs_info *fs_info, u64 bytenr,
int mirror_num, struct extent_buffer **eb)
{
struct extent_buffer *buf = NULL;
- struct inode *btree_inode = root->fs_info->btree_inode;
+ struct inode *btree_inode = fs_info->btree_inode;
struct extent_io_tree *io_tree = &BTRFS_I(btree_inode)->io_tree;
int ret;
- buf = btrfs_find_create_tree_block(root, bytenr);
+ buf = btrfs_find_create_tree_block(fs_info, bytenr);
if (IS_ERR(buf))
return 0;
return 0;
}
-struct extent_buffer *btrfs_find_tree_block(struct btrfs_fs_info *fs_info,
- u64 bytenr)
-{
- return find_extent_buffer(fs_info, bytenr);
-}
-
-struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
- u64 bytenr)
+struct extent_buffer *btrfs_find_create_tree_block(
+ struct btrfs_fs_info *fs_info,
+ u64 bytenr)
{
- if (btrfs_is_testing(root->fs_info))
- return alloc_test_extent_buffer(root->fs_info, bytenr,
- root->nodesize);
- return alloc_extent_buffer(root->fs_info, bytenr);
+ if (btrfs_is_testing(fs_info))
+ return alloc_test_extent_buffer(fs_info, bytenr);
+ return alloc_extent_buffer(fs_info, bytenr);
}
buf->start, buf->start + buf->len - 1);
}
-struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
+struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
u64 parent_transid)
{
struct extent_buffer *buf = NULL;
int ret;
- buf = btrfs_find_create_tree_block(root, bytenr);
+ buf = btrfs_find_create_tree_block(fs_info, bytenr);
if (IS_ERR(buf))
return buf;
- ret = btree_read_extent_buffer_pages(root, buf, parent_transid);
+ ret = btree_read_extent_buffer_pages(fs_info, buf, parent_transid);
if (ret) {
free_extent_buffer(buf);
return ERR_PTR(ret);
kfree(writers);
}
-static void __setup_root(u32 nodesize, u32 sectorsize, u32 stripesize,
- struct btrfs_root *root, struct btrfs_fs_info *fs_info,
+static void __setup_root(struct btrfs_root *root, struct btrfs_fs_info *fs_info,
u64 objectid)
{
bool dummy = test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state);
root->node = NULL;
root->commit_root = NULL;
- root->sectorsize = sectorsize;
- root->nodesize = nodesize;
- root->stripesize = stripesize;
root->state = 0;
root->orphan_cleanup_state = 0;
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
/* Should only be used by the testing infrastructure */
-struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info,
- u32 sectorsize, u32 nodesize)
+struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info)
{
struct btrfs_root *root;
root = btrfs_alloc_root(fs_info, GFP_KERNEL);
if (!root)
return ERR_PTR(-ENOMEM);
+
/* We don't use the stripesize in selftest, set it as sectorsize */
- __setup_root(nodesize, sectorsize, sectorsize, root, fs_info,
- BTRFS_ROOT_TREE_OBJECTID);
+ __setup_root(root, fs_info, BTRFS_ROOT_TREE_OBJECTID);
root->alloc_bytenr = 0;
return root;
if (!root)
return ERR_PTR(-ENOMEM);
- __setup_root(tree_root->nodesize, tree_root->sectorsize,
- tree_root->stripesize, root, fs_info, objectid);
+ __setup_root(root, fs_info, objectid);
root->root_key.objectid = objectid;
root->root_key.type = BTRFS_ROOT_ITEM_KEY;
root->root_key.offset = 0;
goto fail;
}
- memset_extent_buffer(leaf, 0, 0, sizeof(struct btrfs_header));
+ memzero_extent_buffer(leaf, 0, sizeof(struct btrfs_header));
btrfs_set_header_bytenr(leaf, leaf->start);
btrfs_set_header_generation(leaf, trans->transid);
btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV);
btrfs_set_header_owner(leaf, objectid);
root->node = leaf;
- write_extent_buffer(leaf, fs_info->fsid, btrfs_header_fsid(),
- BTRFS_FSID_SIZE);
- write_extent_buffer(leaf, fs_info->chunk_tree_uuid,
- btrfs_header_chunk_tree_uuid(leaf),
- BTRFS_UUID_SIZE);
+ write_extent_buffer_fsid(leaf, fs_info->fsid);
+ write_extent_buffer_chunk_tree_uuid(leaf, fs_info->chunk_tree_uuid);
btrfs_mark_buffer_dirty(leaf);
root->commit_root = btrfs_root_node(root);
struct btrfs_fs_info *fs_info)
{
struct btrfs_root *root;
- struct btrfs_root *tree_root = fs_info->tree_root;
struct extent_buffer *leaf;
root = btrfs_alloc_root(fs_info, GFP_NOFS);
if (!root)
return ERR_PTR(-ENOMEM);
- __setup_root(tree_root->nodesize, tree_root->sectorsize,
- tree_root->stripesize, root, fs_info,
- BTRFS_TREE_LOG_OBJECTID);
+ __setup_root(root, fs_info, BTRFS_TREE_LOG_OBJECTID);
root->root_key.objectid = BTRFS_TREE_LOG_OBJECTID;
root->root_key.type = BTRFS_ROOT_ITEM_KEY;
return ERR_CAST(leaf);
}
- memset_extent_buffer(leaf, 0, 0, sizeof(struct btrfs_header));
+ memzero_extent_buffer(leaf, 0, sizeof(struct btrfs_header));
btrfs_set_header_bytenr(leaf, leaf->start);
btrfs_set_header_generation(leaf, trans->transid);
btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV);
btrfs_set_header_owner(leaf, BTRFS_TREE_LOG_OBJECTID);
root->node = leaf;
- write_extent_buffer(root->node, root->fs_info->fsid,
- btrfs_header_fsid(), BTRFS_FSID_SIZE);
+ write_extent_buffer_fsid(root->node, fs_info->fsid);
btrfs_mark_buffer_dirty(root->node);
btrfs_tree_unlock(root->node);
return root;
int btrfs_add_log_tree(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *log_root;
struct btrfs_inode_item *inode_item;
- log_root = alloc_log_tree(trans, root->fs_info);
+ log_root = alloc_log_tree(trans, fs_info);
if (IS_ERR(log_root))
return PTR_ERR(log_root);
btrfs_set_stack_inode_generation(inode_item, 1);
btrfs_set_stack_inode_size(inode_item, 3);
btrfs_set_stack_inode_nlink(inode_item, 1);
- btrfs_set_stack_inode_nbytes(inode_item, root->nodesize);
+ btrfs_set_stack_inode_nbytes(inode_item,
+ fs_info->nodesize);
btrfs_set_stack_inode_mode(inode_item, S_IFDIR | 0755);
btrfs_set_root_node(&log_root->root_item, log_root->node);
goto alloc_fail;
}
- __setup_root(tree_root->nodesize, tree_root->sectorsize,
- tree_root->stripesize, root, fs_info, key->objectid);
+ __setup_root(root, fs_info, key->objectid);
ret = btrfs_find_root(tree_root, key, path,
&root->root_item, &root->root_key);
}
generation = btrfs_root_generation(&root->root_item);
- root->node = read_tree_block(root, btrfs_root_bytenr(&root->root_item),
+ root->node = read_tree_block(fs_info,
+ btrfs_root_bytenr(&root->root_item),
generation);
if (IS_ERR(root->node)) {
ret = PTR_ERR(root->node);
static int cleaner_kthread(void *arg)
{
struct btrfs_root *root = arg;
+ struct btrfs_fs_info *fs_info = root->fs_info;
int again;
struct btrfs_trans_handle *trans;
again = 0;
/* Make the cleaner go to sleep early. */
- if (btrfs_need_cleaner_sleep(root))
+ if (btrfs_need_cleaner_sleep(fs_info))
goto sleep;
/*
* Do not do anything if we might cause open_ctree() to block
* before we have finished mounting the filesystem.
*/
- if (!test_bit(BTRFS_FS_OPEN, &root->fs_info->flags))
+ if (!test_bit(BTRFS_FS_OPEN, &fs_info->flags))
goto sleep;
- if (!mutex_trylock(&root->fs_info->cleaner_mutex))
+ if (!mutex_trylock(&fs_info->cleaner_mutex))
goto sleep;
/*
* Avoid the problem that we change the status of the fs
* during the above check and trylock.
*/
- if (btrfs_need_cleaner_sleep(root)) {
- mutex_unlock(&root->fs_info->cleaner_mutex);
+ if (btrfs_need_cleaner_sleep(fs_info)) {
+ mutex_unlock(&fs_info->cleaner_mutex);
goto sleep;
}
- mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex);
- btrfs_run_delayed_iputs(root);
- mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex);
+ mutex_lock(&fs_info->cleaner_delayed_iput_mutex);
+ btrfs_run_delayed_iputs(fs_info);
+ mutex_unlock(&fs_info->cleaner_delayed_iput_mutex);
again = btrfs_clean_one_deleted_snapshot(root);
- mutex_unlock(&root->fs_info->cleaner_mutex);
+ mutex_unlock(&fs_info->cleaner_mutex);
/*
* The defragger has dealt with the R/O remount and umount,
* needn't do anything special here.
*/
- btrfs_run_defrag_inodes(root->fs_info);
+ btrfs_run_defrag_inodes(fs_info);
/*
* Acquires fs_info->delete_unused_bgs_mutex to avoid racing
* can't hold, nor need to, fs_info->cleaner_mutex when deleting
* unused block groups.
*/
- btrfs_delete_unused_bgs(root->fs_info);
+ btrfs_delete_unused_bgs(fs_info);
sleep:
if (!again) {
set_current_state(TASK_INTERRUPTIBLE);
trans = btrfs_attach_transaction(root);
if (IS_ERR(trans)) {
if (PTR_ERR(trans) != -ENOENT)
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"cleaner transaction attach returned %ld",
PTR_ERR(trans));
} else {
int ret;
- ret = btrfs_commit_transaction(trans, root);
+ ret = btrfs_commit_transaction(trans);
if (ret)
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"cleaner open transaction commit returned %d",
ret);
}
static int transaction_kthread(void *arg)
{
struct btrfs_root *root = arg;
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *trans;
struct btrfs_transaction *cur;
u64 transid;
do {
cannot_commit = false;
- delay = HZ * root->fs_info->commit_interval;
- mutex_lock(&root->fs_info->transaction_kthread_mutex);
+ delay = HZ * fs_info->commit_interval;
+ mutex_lock(&fs_info->transaction_kthread_mutex);
- spin_lock(&root->fs_info->trans_lock);
- cur = root->fs_info->running_transaction;
+ spin_lock(&fs_info->trans_lock);
+ cur = fs_info->running_transaction;
if (!cur) {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
goto sleep;
}
now = get_seconds();
if (cur->state < TRANS_STATE_BLOCKED &&
(now < cur->start_time ||
- now - cur->start_time < root->fs_info->commit_interval)) {
- spin_unlock(&root->fs_info->trans_lock);
+ now - cur->start_time < fs_info->commit_interval)) {
+ spin_unlock(&fs_info->trans_lock);
delay = HZ * 5;
goto sleep;
}
transid = cur->transid;
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
/* If the file system is aborted, this will always fail. */
trans = btrfs_attach_transaction(root);
goto sleep;
}
if (transid == trans->transid) {
- btrfs_commit_transaction(trans, root);
+ btrfs_commit_transaction(trans);
} else {
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
}
sleep:
- wake_up_process(root->fs_info->cleaner_kthread);
- mutex_unlock(&root->fs_info->transaction_kthread_mutex);
+ wake_up_process(fs_info->cleaner_kthread);
+ mutex_unlock(&fs_info->transaction_kthread_mutex);
if (unlikely(test_bit(BTRFS_FS_STATE_ERROR,
- &root->fs_info->fs_state)))
- btrfs_cleanup_transaction(root);
+ &fs_info->fs_state)))
+ btrfs_cleanup_transaction(fs_info);
set_current_state(TASK_INTERRUPTIBLE);
if (!kthread_should_stop() &&
- (!btrfs_transaction_blocked(root->fs_info) ||
+ (!btrfs_transaction_blocked(fs_info) ||
cannot_commit))
schedule_timeout(delay);
__set_current_state(TASK_RUNNING);
if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {
btrfs_free_log_root_tree(NULL, fs_info);
- btrfs_destroy_pinned_extent(fs_info->tree_root,
- fs_info->pinned_extents);
+ btrfs_destroy_pinned_extent(fs_info, fs_info->pinned_extents);
}
}
init_waitqueue_head(&fs_info->balance_wait_q);
}
-static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info,
- struct btrfs_root *tree_root)
+static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info)
{
- fs_info->btree_inode->i_ino = BTRFS_BTREE_INODE_OBJECTID;
- set_nlink(fs_info->btree_inode, 1);
+ struct inode *inode = fs_info->btree_inode;
+
+ inode->i_ino = BTRFS_BTREE_INODE_OBJECTID;
+ set_nlink(inode, 1);
/*
* we set the i_size on the btree inode to the max possible int.
* the real end of the address space is determined by all of
* the devices in the system
*/
- fs_info->btree_inode->i_size = OFFSET_MAX;
- fs_info->btree_inode->i_mapping->a_ops = &btree_aops;
+ inode->i_size = OFFSET_MAX;
+ inode->i_mapping->a_ops = &btree_aops;
- RB_CLEAR_NODE(&BTRFS_I(fs_info->btree_inode)->rb_node);
- extent_io_tree_init(&BTRFS_I(fs_info->btree_inode)->io_tree,
- fs_info->btree_inode->i_mapping);
- BTRFS_I(fs_info->btree_inode)->io_tree.track_uptodate = 0;
- extent_map_tree_init(&BTRFS_I(fs_info->btree_inode)->extent_tree);
+ RB_CLEAR_NODE(&BTRFS_I(inode)->rb_node);
+ extent_io_tree_init(&BTRFS_I(inode)->io_tree, inode->i_mapping);
+ BTRFS_I(inode)->io_tree.track_uptodate = 0;
+ extent_map_tree_init(&BTRFS_I(inode)->extent_tree);
- BTRFS_I(fs_info->btree_inode)->io_tree.ops = &btree_extent_io_ops;
+ BTRFS_I(inode)->io_tree.ops = &btree_extent_io_ops;
- BTRFS_I(fs_info->btree_inode)->root = tree_root;
- memset(&BTRFS_I(fs_info->btree_inode)->location, 0,
- sizeof(struct btrfs_key));
- set_bit(BTRFS_INODE_DUMMY,
- &BTRFS_I(fs_info->btree_inode)->runtime_flags);
- btrfs_insert_inode_hash(fs_info->btree_inode);
+ BTRFS_I(inode)->root = fs_info->tree_root;
+ memset(&BTRFS_I(inode)->location, 0, sizeof(struct btrfs_key));
+ set_bit(BTRFS_INODE_DUMMY, &BTRFS_I(inode)->runtime_flags);
+ btrfs_insert_inode_hash(inode);
}
static void btrfs_init_dev_replace_locks(struct btrfs_fs_info *fs_info)
struct btrfs_fs_devices *fs_devices)
{
int ret;
- struct btrfs_root *tree_root = fs_info->tree_root;
struct btrfs_root *log_tree_root;
struct btrfs_super_block *disk_super = fs_info->super_copy;
u64 bytenr = btrfs_super_log_root(disk_super);
if (!log_tree_root)
return -ENOMEM;
- __setup_root(tree_root->nodesize, tree_root->sectorsize,
- tree_root->stripesize, log_tree_root, fs_info,
- BTRFS_TREE_LOG_OBJECTID);
+ __setup_root(log_tree_root, fs_info, BTRFS_TREE_LOG_OBJECTID);
- log_tree_root->node = read_tree_block(tree_root, bytenr,
- fs_info->generation + 1);
+ log_tree_root->node = read_tree_block(fs_info, bytenr,
+ fs_info->generation + 1);
if (IS_ERR(log_tree_root->node)) {
btrfs_warn(fs_info, "failed to read log tree");
ret = PTR_ERR(log_tree_root->node);
/* returns with log_tree_root freed on success */
ret = btrfs_recover_log_trees(log_tree_root);
if (ret) {
- btrfs_handle_fs_error(tree_root->fs_info, ret,
- "Failed to recover log tree");
+ btrfs_handle_fs_error(fs_info, ret,
+ "Failed to recover log tree");
free_extent_buffer(log_tree_root->node);
kfree(log_tree_root);
return ret;
}
if (fs_info->sb->s_flags & MS_RDONLY) {
- ret = btrfs_commit_super(tree_root);
+ ret = btrfs_commit_super(fs_info);
if (ret)
return ret;
}
return 0;
}
-static int btrfs_read_roots(struct btrfs_fs_info *fs_info,
- struct btrfs_root *tree_root)
+static int btrfs_read_roots(struct btrfs_fs_info *fs_info)
{
+ struct btrfs_root *tree_root = fs_info->tree_root;
struct btrfs_root *root;
struct btrfs_key location;
int ret;
+ BUG_ON(!fs_info->tree_root);
+
location.objectid = BTRFS_EXTENT_TREE_OBJECTID;
location.type = BTRFS_ROOT_ITEM_KEY;
location.offset = 0;
sb->s_blocksize_bits = blksize_bits(4096);
sb->s_bdi = &fs_info->bdi;
- btrfs_init_btree_inode(fs_info, tree_root);
+ btrfs_init_btree_inode(fs_info);
spin_lock_init(&fs_info->block_group_cache_lock);
fs_info->block_group_cache_tree = RB_ROOT;
INIT_LIST_HEAD(&fs_info->pinned_chunks);
+ /* Usable values until the real ones are cached from the superblock */
+ fs_info->nodesize = 4096;
+ fs_info->sectorsize = 4096;
+ fs_info->stripesize = 4096;
+
ret = btrfs_alloc_stripe_hash_table(fs_info);
if (ret) {
err = ret;
goto fail_alloc;
}
- __setup_root(4096, 4096, 4096, tree_root,
- fs_info, BTRFS_ROOT_TREE_OBJECTID);
+ __setup_root(tree_root, fs_info, BTRFS_ROOT_TREE_OBJECTID);
invalidate_bdev(fs_devices->latest_bdev);
*/
fs_info->compress_type = BTRFS_COMPRESS_ZLIB;
- ret = btrfs_parse_options(tree_root, options, sb->s_flags);
+ ret = btrfs_parse_options(fs_info, options, sb->s_flags);
if (ret) {
err = ret;
goto fail_alloc;
features = btrfs_super_incompat_flags(disk_super);
features |= BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF;
- if (tree_root->fs_info->compress_type == BTRFS_COMPRESS_LZO)
+ if (fs_info->compress_type == BTRFS_COMPRESS_LZO)
features |= BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO;
if (features & BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
fs_info->dirty_metadata_batch = nodesize * (1 + ilog2(nr_cpu_ids));
fs_info->delalloc_batch = sectorsize * 512 * (1 + ilog2(nr_cpu_ids));
+ /* Cache block sizes */
+ fs_info->nodesize = nodesize;
+ fs_info->sectorsize = sectorsize;
+ fs_info->stripesize = stripesize;
+
/*
* mixed block groups end up with duplicate but slightly offset
* extent buffers for the same range. It leads to corruptions
fs_info->bdi.ra_pages = max(fs_info->bdi.ra_pages,
SZ_4M / PAGE_SIZE);
- tree_root->nodesize = nodesize;
- tree_root->sectorsize = sectorsize;
- tree_root->stripesize = stripesize;
-
sb->s_blocksize = sectorsize;
sb->s_blocksize_bits = blksize_bits(sectorsize);
mutex_lock(&fs_info->chunk_mutex);
- ret = btrfs_read_sys_array(tree_root);
+ ret = btrfs_read_sys_array(fs_info);
mutex_unlock(&fs_info->chunk_mutex);
if (ret) {
btrfs_err(fs_info, "failed to read the system array: %d", ret);
generation = btrfs_super_chunk_root_generation(disk_super);
- __setup_root(nodesize, sectorsize, stripesize, chunk_root,
- fs_info, BTRFS_CHUNK_TREE_OBJECTID);
+ __setup_root(chunk_root, fs_info, BTRFS_CHUNK_TREE_OBJECTID);
- chunk_root->node = read_tree_block(chunk_root,
+ chunk_root->node = read_tree_block(fs_info,
btrfs_super_chunk_root(disk_super),
generation);
if (IS_ERR(chunk_root->node) ||
read_extent_buffer(chunk_root->node, fs_info->chunk_tree_uuid,
btrfs_header_chunk_tree_uuid(chunk_root->node), BTRFS_UUID_SIZE);
- ret = btrfs_read_chunk_tree(chunk_root);
+ ret = btrfs_read_chunk_tree(fs_info);
if (ret) {
btrfs_err(fs_info, "failed to read chunk tree: %d", ret);
goto fail_tree_roots;
retry_root_backup:
generation = btrfs_super_generation(disk_super);
- tree_root->node = read_tree_block(tree_root,
+ tree_root->node = read_tree_block(fs_info,
btrfs_super_root(disk_super),
generation);
if (IS_ERR(tree_root->node) ||
mutex_unlock(&tree_root->objectid_mutex);
- ret = btrfs_read_roots(fs_info, tree_root);
+ ret = btrfs_read_roots(fs_info);
if (ret)
goto recovery_tree_root;
goto fail_sysfs;
}
- ret = btrfs_read_block_groups(fs_info->extent_root);
+ ret = btrfs_read_block_groups(fs_info);
if (ret) {
btrfs_err(fs_info, "failed to read block groups: %d", ret);
goto fail_sysfs;
if (IS_ERR(fs_info->transaction_kthread))
goto fail_cleaner;
- if (!btrfs_test_opt(tree_root->fs_info, SSD) &&
- !btrfs_test_opt(tree_root->fs_info, NOSSD) &&
+ if (!btrfs_test_opt(fs_info, SSD) &&
+ !btrfs_test_opt(fs_info, NOSSD) &&
!fs_info->fs_devices->rotating) {
btrfs_info(fs_info, "detected SSD devices, enabling SSD mode");
btrfs_set_opt(fs_info->mount_opt, SSD);
btrfs_apply_pending_changes(fs_info);
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
- if (btrfs_test_opt(tree_root->fs_info, CHECK_INTEGRITY)) {
- ret = btrfsic_mount(tree_root, fs_devices,
- btrfs_test_opt(tree_root->fs_info,
+ if (btrfs_test_opt(fs_info, CHECK_INTEGRITY)) {
+ ret = btrfsic_mount(fs_info, fs_devices,
+ btrfs_test_opt(fs_info,
CHECK_INTEGRITY_INCLUDING_EXTENT_DATA) ?
1 : 0,
fs_info->check_integrity_print_mask);
/* do not make disk changes in broken FS or nologreplay is given */
if (btrfs_super_log_root(disk_super) != 0 &&
- !btrfs_test_opt(tree_root->fs_info, NOLOGREPLAY)) {
+ !btrfs_test_opt(fs_info, NOLOGREPLAY)) {
ret = btrfs_replay_log(fs_info, fs_devices);
if (ret) {
err = ret;
}
}
- ret = btrfs_find_orphan_roots(tree_root);
+ ret = btrfs_find_orphan_roots(fs_info);
if (ret)
goto fail_qgroup;
if (ret) {
btrfs_warn(fs_info,
"failed to clear free space tree: %d", ret);
- close_ctree(tree_root);
+ close_ctree(fs_info);
return ret;
}
}
- if (btrfs_test_opt(tree_root->fs_info, FREE_SPACE_TREE) &&
+ if (btrfs_test_opt(fs_info, FREE_SPACE_TREE) &&
!btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) {
btrfs_info(fs_info, "creating free space tree");
ret = btrfs_create_free_space_tree(fs_info);
if (ret) {
btrfs_warn(fs_info,
"failed to create free space tree: %d", ret);
- close_ctree(tree_root);
+ close_ctree(fs_info);
return ret;
}
}
if ((ret = btrfs_orphan_cleanup(fs_info->fs_root)) ||
(ret = btrfs_orphan_cleanup(fs_info->tree_root))) {
up_read(&fs_info->cleanup_work_sem);
- close_ctree(tree_root);
+ close_ctree(fs_info);
return ret;
}
up_read(&fs_info->cleanup_work_sem);
ret = btrfs_resume_balance_async(fs_info);
if (ret) {
btrfs_warn(fs_info, "failed to resume balance: %d", ret);
- close_ctree(tree_root);
+ close_ctree(fs_info);
return ret;
}
ret = btrfs_resume_dev_replace_async(fs_info);
if (ret) {
btrfs_warn(fs_info, "failed to resume device replace: %d", ret);
- close_ctree(tree_root);
+ close_ctree(fs_info);
return ret;
}
if (ret) {
btrfs_warn(fs_info,
"failed to create the UUID tree: %d", ret);
- close_ctree(tree_root);
+ close_ctree(fs_info);
return ret;
}
- } else if (btrfs_test_opt(tree_root->fs_info, RESCAN_UUID_TREE) ||
+ } else if (btrfs_test_opt(fs_info, RESCAN_UUID_TREE) ||
fs_info->generation !=
btrfs_super_uuid_tree_generation(disk_super)) {
btrfs_info(fs_info, "checking UUID tree");
if (ret) {
btrfs_warn(fs_info,
"failed to check the UUID tree: %d", ret);
- close_ctree(tree_root);
+ close_ctree(fs_info);
return ret;
}
} else {
btrfs_free_qgroup_config(fs_info);
fail_trans_kthread:
kthread_stop(fs_info->transaction_kthread);
- btrfs_cleanup_transaction(fs_info->tree_root);
+ btrfs_cleanup_transaction(fs_info);
btrfs_free_fs_roots(fs_info);
fail_cleaner:
kthread_stop(fs_info->cleaner_kthread);
return err;
recovery_tree_root:
- if (!btrfs_test_opt(tree_root->fs_info, USEBACKUPROOT))
+ if (!btrfs_test_opt(fs_info, USEBACKUPROOT))
goto fail_tree_roots;
free_root_pointers(fs_info, 0);
struct btrfs_device *device = (struct btrfs_device *)
bh->b_private;
- btrfs_warn_rl_in_rcu(device->dev_root->fs_info,
+ btrfs_warn_rl_in_rcu(device->fs_info,
"lost page write due to IO error on %s",
rcu_str_deref(device->name));
/* note, we don't set_buffer_write_io_error because we have
bh = __getblk(device->bdev, bytenr / 4096,
BTRFS_SUPER_INFO_SIZE);
if (!bh) {
- btrfs_err(device->dev_root->fs_info,
+ btrfs_err(device->fs_info,
"couldn't get super buffer head for bytenr %llu",
bytenr);
errors++;
return num_tolerated_disk_barrier_failures;
}
-static int write_all_supers(struct btrfs_root *root, int max_mirrors)
+static int write_all_supers(struct btrfs_fs_info *fs_info, int max_mirrors)
{
struct list_head *head;
struct btrfs_device *dev;
int total_errors = 0;
u64 flags;
- do_barriers = !btrfs_test_opt(root->fs_info, NOBARRIER);
- backup_super_roots(root->fs_info);
+ do_barriers = !btrfs_test_opt(fs_info, NOBARRIER);
+ backup_super_roots(fs_info);
- sb = root->fs_info->super_for_commit;
+ sb = fs_info->super_for_commit;
dev_item = &sb->dev_item;
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
- head = &root->fs_info->fs_devices->devices;
- max_errors = btrfs_super_num_devices(root->fs_info->super_copy) - 1;
+ mutex_lock(&fs_info->fs_devices->device_list_mutex);
+ head = &fs_info->fs_devices->devices;
+ max_errors = btrfs_super_num_devices(fs_info->super_copy) - 1;
if (do_barriers) {
- ret = barrier_all_devices(root->fs_info);
+ ret = barrier_all_devices(fs_info);
if (ret) {
mutex_unlock(
- &root->fs_info->fs_devices->device_list_mutex);
- btrfs_handle_fs_error(root->fs_info, ret,
- "errors while submitting device barriers.");
+ &fs_info->fs_devices->device_list_mutex);
+ btrfs_handle_fs_error(fs_info, ret,
+ "errors while submitting device barriers.");
return ret;
}
}
total_errors++;
}
if (total_errors > max_errors) {
- btrfs_err(root->fs_info, "%d errors while writing supers",
- total_errors);
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ btrfs_err(fs_info, "%d errors while writing supers",
+ total_errors);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
/* FUA is masked off if unsupported and can't be the reason */
- btrfs_handle_fs_error(root->fs_info, -EIO,
- "%d errors while writing supers", total_errors);
+ btrfs_handle_fs_error(fs_info, -EIO,
+ "%d errors while writing supers",
+ total_errors);
return -EIO;
}
if (ret)
total_errors++;
}
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&fs_info->fs_devices->device_list_mutex);
if (total_errors > max_errors) {
- btrfs_handle_fs_error(root->fs_info, -EIO,
- "%d errors while writing supers", total_errors);
+ btrfs_handle_fs_error(fs_info, -EIO,
+ "%d errors while writing supers",
+ total_errors);
return -EIO;
}
return 0;
}
int write_ctree_super(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, int max_mirrors)
+ struct btrfs_fs_info *fs_info, int max_mirrors)
{
- return write_all_supers(root, max_mirrors);
+ return write_all_supers(fs_info, max_mirrors);
}
/* Drop a fs root from the radix tree and free it. */
{
iput(root->ino_cache_inode);
WARN_ON(!RB_EMPTY_ROOT(&root->inode_tree));
- btrfs_free_block_rsv(root, root->orphan_block_rsv);
+ btrfs_free_block_rsv(root->fs_info, root->orphan_block_rsv);
root->orphan_block_rsv = NULL;
if (root->anon_dev)
free_anon_bdev(root->anon_dev);
return err;
}
-int btrfs_commit_super(struct btrfs_root *root)
+int btrfs_commit_super(struct btrfs_fs_info *fs_info)
{
+ struct btrfs_root *root = fs_info->tree_root;
struct btrfs_trans_handle *trans;
- mutex_lock(&root->fs_info->cleaner_mutex);
- btrfs_run_delayed_iputs(root);
- mutex_unlock(&root->fs_info->cleaner_mutex);
- wake_up_process(root->fs_info->cleaner_kthread);
+ mutex_lock(&fs_info->cleaner_mutex);
+ btrfs_run_delayed_iputs(fs_info);
+ mutex_unlock(&fs_info->cleaner_mutex);
+ wake_up_process(fs_info->cleaner_kthread);
/* wait until ongoing cleanup work done */
- down_write(&root->fs_info->cleanup_work_sem);
- up_write(&root->fs_info->cleanup_work_sem);
+ down_write(&fs_info->cleanup_work_sem);
+ up_write(&fs_info->cleanup_work_sem);
trans = btrfs_join_transaction(root);
if (IS_ERR(trans))
return PTR_ERR(trans);
- return btrfs_commit_transaction(trans, root);
+ return btrfs_commit_transaction(trans);
}
-void close_ctree(struct btrfs_root *root)
+void close_ctree(struct btrfs_fs_info *fs_info)
{
- struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_root *root = fs_info->tree_root;
int ret;
set_bit(BTRFS_FS_CLOSING_START, &fs_info->flags);
* block groups queued for removal, the deletion will be
* skipped when we quit the cleaner thread.
*/
- btrfs_delete_unused_bgs(root->fs_info);
+ btrfs_delete_unused_bgs(fs_info);
- ret = btrfs_commit_super(root);
+ ret = btrfs_commit_super(fs_info);
if (ret)
btrfs_err(fs_info, "commit super ret %d", ret);
}
if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state))
- btrfs_error_commit_super(root);
+ btrfs_error_commit_super(fs_info);
kthread_stop(fs_info->transaction_kthread);
kthread_stop(fs_info->cleaner_kthread);
iput(fs_info->btree_inode);
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
- if (btrfs_test_opt(root->fs_info, CHECK_INTEGRITY))
- btrfsic_unmount(root, fs_info->fs_devices);
+ if (btrfs_test_opt(fs_info, CHECK_INTEGRITY))
+ btrfsic_unmount(fs_info->fs_devices);
#endif
btrfs_close_devices(fs_info->fs_devices);
__btrfs_free_block_rsv(root->orphan_block_rsv);
root->orphan_block_rsv = NULL;
- lock_chunks(root);
+ mutex_lock(&fs_info->chunk_mutex);
while (!list_empty(&fs_info->pinned_chunks)) {
struct extent_map *em;
list_del_init(&em->list);
free_extent_map(em);
}
- unlock_chunks(root);
+ mutex_unlock(&fs_info->chunk_mutex);
}
int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,
void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
{
+ struct btrfs_fs_info *fs_info;
struct btrfs_root *root;
u64 transid = btrfs_header_generation(buf);
int was_dirty;
return;
#endif
root = BTRFS_I(buf->pages[0]->mapping->host)->root;
+ fs_info = root->fs_info;
btrfs_assert_tree_locked(buf);
- if (transid != root->fs_info->generation)
+ if (transid != fs_info->generation)
WARN(1, KERN_CRIT "btrfs transid mismatch buffer %llu, found %llu running %llu\n",
- buf->start, transid, root->fs_info->generation);
+ buf->start, transid, fs_info->generation);
was_dirty = set_extent_buffer_dirty(buf);
if (!was_dirty)
- __percpu_counter_add(&root->fs_info->dirty_metadata_bytes,
+ __percpu_counter_add(&fs_info->dirty_metadata_bytes,
buf->len,
- root->fs_info->dirty_metadata_batch);
+ fs_info->dirty_metadata_batch);
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
if (btrfs_header_level(buf) == 0 && check_leaf(root, buf)) {
- btrfs_print_leaf(root, buf);
+ btrfs_print_leaf(fs_info, buf);
ASSERT(0);
}
#endif
}
-static void __btrfs_btree_balance_dirty(struct btrfs_root *root,
+static void __btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info,
int flush_delayed)
{
/*
return;
if (flush_delayed)
- btrfs_balance_delayed_items(root);
+ btrfs_balance_delayed_items(fs_info);
- ret = percpu_counter_compare(&root->fs_info->dirty_metadata_bytes,
+ ret = percpu_counter_compare(&fs_info->dirty_metadata_bytes,
BTRFS_DIRTY_METADATA_THRESH);
if (ret > 0) {
- balance_dirty_pages_ratelimited(
- root->fs_info->btree_inode->i_mapping);
+ balance_dirty_pages_ratelimited(fs_info->btree_inode->i_mapping);
}
}
-void btrfs_btree_balance_dirty(struct btrfs_root *root)
+void btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info)
{
- __btrfs_btree_balance_dirty(root, 1);
+ __btrfs_btree_balance_dirty(fs_info, 1);
}
-void btrfs_btree_balance_dirty_nodelay(struct btrfs_root *root)
+void btrfs_btree_balance_dirty_nodelay(struct btrfs_fs_info *fs_info)
{
- __btrfs_btree_balance_dirty(root, 0);
+ __btrfs_btree_balance_dirty(fs_info, 0);
}
int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid)
{
struct btrfs_root *root = BTRFS_I(buf->pages[0]->mapping->host)->root;
- return btree_read_extent_buffer_pages(root, buf, parent_transid);
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ return btree_read_extent_buffer_pages(fs_info, buf, parent_transid);
}
static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,
return ret;
}
-static void btrfs_error_commit_super(struct btrfs_root *root)
+static void btrfs_error_commit_super(struct btrfs_fs_info *fs_info)
{
- mutex_lock(&root->fs_info->cleaner_mutex);
- btrfs_run_delayed_iputs(root);
- mutex_unlock(&root->fs_info->cleaner_mutex);
+ mutex_lock(&fs_info->cleaner_mutex);
+ btrfs_run_delayed_iputs(fs_info);
+ mutex_unlock(&fs_info->cleaner_mutex);
- down_write(&root->fs_info->cleanup_work_sem);
- up_write(&root->fs_info->cleanup_work_sem);
+ down_write(&fs_info->cleanup_work_sem);
+ up_write(&fs_info->cleanup_work_sem);
/* cleanup FS via transaction */
- btrfs_cleanup_transaction(root);
+ btrfs_cleanup_transaction(fs_info);
}
static void btrfs_destroy_ordered_extents(struct btrfs_root *root)
}
static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
- struct btrfs_root *root)
+ struct btrfs_fs_info *fs_info)
{
struct rb_node *node;
struct btrfs_delayed_ref_root *delayed_refs;
spin_lock(&delayed_refs->lock);
if (atomic_read(&delayed_refs->num_entries) == 0) {
spin_unlock(&delayed_refs->lock);
- btrfs_info(root->fs_info, "delayed_refs has NO entry");
+ btrfs_info(fs_info, "delayed_refs has NO entry");
return ret;
}
list) {
ref->in_tree = 0;
list_del(&ref->list);
+ if (!list_empty(&ref->add_list))
+ list_del(&ref->add_list);
atomic_dec(&delayed_refs->num_entries);
btrfs_put_delayed_ref(ref);
}
mutex_unlock(&head->mutex);
if (pin_bytes)
- btrfs_pin_extent(root, head->node.bytenr,
+ btrfs_pin_extent(fs_info, head->node.bytenr,
head->node.num_bytes, 1);
btrfs_put_delayed_ref(&head->node);
cond_resched();
spin_unlock(&fs_info->delalloc_root_lock);
}
-static int btrfs_destroy_marked_extents(struct btrfs_root *root,
+static int btrfs_destroy_marked_extents(struct btrfs_fs_info *fs_info,
struct extent_io_tree *dirty_pages,
int mark)
{
clear_extent_bits(dirty_pages, start, end, mark);
while (start <= end) {
- eb = btrfs_find_tree_block(root->fs_info, start);
- start += root->nodesize;
+ eb = find_extent_buffer(fs_info, start);
+ start += fs_info->nodesize;
if (!eb)
continue;
wait_on_extent_buffer_writeback(eb);
return ret;
}
-static int btrfs_destroy_pinned_extent(struct btrfs_root *root,
+static int btrfs_destroy_pinned_extent(struct btrfs_fs_info *fs_info,
struct extent_io_tree *pinned_extents)
{
struct extent_io_tree *unpin;
break;
clear_extent_dirty(unpin, start, end);
- btrfs_error_unpin_extent_range(root, start, end);
+ btrfs_error_unpin_extent_range(fs_info, start, end);
cond_resched();
}
if (loop) {
- if (unpin == &root->fs_info->freed_extents[0])
- unpin = &root->fs_info->freed_extents[1];
+ if (unpin == &fs_info->freed_extents[0])
+ unpin = &fs_info->freed_extents[1];
else
- unpin = &root->fs_info->freed_extents[0];
+ unpin = &fs_info->freed_extents[0];
loop = false;
goto again;
}
}
void btrfs_cleanup_dirty_bgs(struct btrfs_transaction *cur_trans,
- struct btrfs_root *root)
+ struct btrfs_fs_info *fs_info)
{
struct btrfs_block_group_cache *cache;
struct btrfs_block_group_cache,
dirty_list);
if (!cache) {
- btrfs_err(root->fs_info,
- "orphan block group dirty_bgs list");
+ btrfs_err(fs_info, "orphan block group dirty_bgs list");
spin_unlock(&cur_trans->dirty_bgs_lock);
return;
}
struct btrfs_block_group_cache,
io_list);
if (!cache) {
- btrfs_err(root->fs_info,
- "orphan block group on io_bgs list");
+ btrfs_err(fs_info, "orphan block group on io_bgs list");
return;
}
}
void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
- struct btrfs_root *root)
+ struct btrfs_fs_info *fs_info)
{
- btrfs_cleanup_dirty_bgs(cur_trans, root);
+ btrfs_cleanup_dirty_bgs(cur_trans, fs_info);
ASSERT(list_empty(&cur_trans->dirty_bgs));
ASSERT(list_empty(&cur_trans->io_bgs));
- btrfs_destroy_delayed_refs(cur_trans, root);
+ btrfs_destroy_delayed_refs(cur_trans, fs_info);
cur_trans->state = TRANS_STATE_COMMIT_START;
- wake_up(&root->fs_info->transaction_blocked_wait);
+ wake_up(&fs_info->transaction_blocked_wait);
cur_trans->state = TRANS_STATE_UNBLOCKED;
- wake_up(&root->fs_info->transaction_wait);
+ wake_up(&fs_info->transaction_wait);
- btrfs_destroy_delayed_inodes(root);
- btrfs_assert_delayed_root_empty(root);
+ btrfs_destroy_delayed_inodes(fs_info);
+ btrfs_assert_delayed_root_empty(fs_info);
- btrfs_destroy_marked_extents(root, &cur_trans->dirty_pages,
+ btrfs_destroy_marked_extents(fs_info, &cur_trans->dirty_pages,
EXTENT_DIRTY);
- btrfs_destroy_pinned_extent(root,
- root->fs_info->pinned_extents);
+ btrfs_destroy_pinned_extent(fs_info,
+ fs_info->pinned_extents);
cur_trans->state =TRANS_STATE_COMPLETED;
wake_up(&cur_trans->commit_wait);
*/
}
-static int btrfs_cleanup_transaction(struct btrfs_root *root)
+static int btrfs_cleanup_transaction(struct btrfs_fs_info *fs_info)
{
struct btrfs_transaction *t;
- mutex_lock(&root->fs_info->transaction_kthread_mutex);
+ mutex_lock(&fs_info->transaction_kthread_mutex);
- spin_lock(&root->fs_info->trans_lock);
- while (!list_empty(&root->fs_info->trans_list)) {
- t = list_first_entry(&root->fs_info->trans_list,
+ spin_lock(&fs_info->trans_lock);
+ while (!list_empty(&fs_info->trans_list)) {
+ t = list_first_entry(&fs_info->trans_list,
struct btrfs_transaction, list);
if (t->state >= TRANS_STATE_COMMIT_START) {
atomic_inc(&t->use_count);
- spin_unlock(&root->fs_info->trans_lock);
- btrfs_wait_for_commit(root, t->transid);
+ spin_unlock(&fs_info->trans_lock);
+ btrfs_wait_for_commit(fs_info, t->transid);
btrfs_put_transaction(t);
- spin_lock(&root->fs_info->trans_lock);
+ spin_lock(&fs_info->trans_lock);
continue;
}
- if (t == root->fs_info->running_transaction) {
+ if (t == fs_info->running_transaction) {
t->state = TRANS_STATE_COMMIT_DOING;
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
/*
* We wait for 0 num_writers since we don't hold a trans
* handle open currently for this transaction.
wait_event(t->writer_wait,
atomic_read(&t->num_writers) == 0);
} else {
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
}
- btrfs_cleanup_one_transaction(t, root);
+ btrfs_cleanup_one_transaction(t, fs_info);
- spin_lock(&root->fs_info->trans_lock);
- if (t == root->fs_info->running_transaction)
- root->fs_info->running_transaction = NULL;
+ spin_lock(&fs_info->trans_lock);
+ if (t == fs_info->running_transaction)
+ fs_info->running_transaction = NULL;
list_del_init(&t->list);
- spin_unlock(&root->fs_info->trans_lock);
+ spin_unlock(&fs_info->trans_lock);
btrfs_put_transaction(t);
- trace_btrfs_transaction_commit(root);
- spin_lock(&root->fs_info->trans_lock);
- }
- spin_unlock(&root->fs_info->trans_lock);
- btrfs_destroy_all_ordered_extents(root->fs_info);
- btrfs_destroy_delayed_inodes(root);
- btrfs_assert_delayed_root_empty(root);
- btrfs_destroy_pinned_extent(root, root->fs_info->pinned_extents);
- btrfs_destroy_all_delalloc_inodes(root->fs_info);
- mutex_unlock(&root->fs_info->transaction_kthread_mutex);
+ trace_btrfs_transaction_commit(fs_info->tree_root);
+ spin_lock(&fs_info->trans_lock);
+ }
+ spin_unlock(&fs_info->trans_lock);
+ btrfs_destroy_all_ordered_extents(fs_info);
+ btrfs_destroy_delayed_inodes(fs_info);
+ btrfs_assert_delayed_root_empty(fs_info);
+ btrfs_destroy_pinned_extent(fs_info, fs_info->pinned_extents);
+ btrfs_destroy_all_delalloc_inodes(fs_info);
+ mutex_unlock(&fs_info->transaction_kthread_mutex);
return 0;
}
projects / linux-2.6-block.git / blobdiff