ins.type = BTRFS_EXTENT_ITEM_KEY;
ref = btrfs_delayed_node_to_data_ref(node);
- trace_run_delayed_data_ref(node, ref, node->action);
+ trace_run_delayed_data_ref(root->fs_info, node, ref, node->action);
if (node->type == BTRFS_SHARED_DATA_REF_KEY)
parent = ref->parent;
SKINNY_METADATA);
ref = btrfs_delayed_node_to_tree_ref(node);
- trace_run_delayed_tree_ref(node, ref, node->action);
+ trace_run_delayed_tree_ref(root->fs_info, node, ref, node->action);
if (node->type == BTRFS_SHARED_BLOCK_REF_KEY)
parent = ref->parent;
*/
BUG_ON(extent_op);
head = btrfs_delayed_node_to_head(node);
- trace_run_delayed_ref_head(node, head, node->action);
+ trace_run_delayed_ref_head(root->fs_info, node, head,
+ node->action);
if (insert_reserved) {
btrfs_pin_extent(root, node->bytenr,
}
static inline int need_do_async_reclaim(struct btrfs_space_info *space_info,
- struct btrfs_fs_info *fs_info, u64 used)
+ struct btrfs_root *root, u64 used)
{
u64 thresh = div_factor_fine(space_info->total_bytes, 98);
if ((space_info->bytes_used + space_info->bytes_reserved) >= thresh)
return 0;
- if (!btrfs_calc_reclaim_metadata_size(fs_info->fs_root, space_info))
+ if (!btrfs_calc_reclaim_metadata_size(root, space_info))
return 0;
- return (used >= thresh && !btrfs_fs_closing(fs_info) &&
- !test_bit(BTRFS_FS_STATE_REMOUNTING, &fs_info->fs_state));
+ return (used >= thresh && !btrfs_fs_closing(root->fs_info) &&
+ !test_bit(BTRFS_FS_STATE_REMOUNTING,
+ &root->fs_info->fs_state));
}
static void wake_all_tickets(struct list_head *head)
int ret = 0;
ASSERT(orig_bytes);
+ ASSERT(!current->journal_info || flush != BTRFS_RESERVE_FLUSH_ALL);
+
spin_lock(&space_info->lock);
ret = -ENOSPC;
used = space_info->bytes_used + space_info->bytes_reserved +
* the async reclaim as we will panic.
*/
if (!root->fs_info->log_root_recovering &&
- need_do_async_reclaim(space_info, root->fs_info, used) &&
+ need_do_async_reclaim(space_info, root, used) &&
!work_busy(&root->fs_info->async_reclaim_work)) {
trace_btrfs_trigger_flush(root->fs_info,
space_info->flags,
num_bytes);
}
-/*
- * helper to calculate size of global block reservation.
- * the desired value is sum of space used by extent tree,
- * checksum tree and root tree
- */
-static u64 calc_global_metadata_size(struct btrfs_fs_info *fs_info)
-{
- struct btrfs_space_info *sinfo;
- u64 num_bytes;
- u64 meta_used;
- u64 data_used;
- int csum_size = btrfs_super_csum_size(fs_info->super_copy);
-
- sinfo = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_DATA);
- spin_lock(&sinfo->lock);
- data_used = sinfo->bytes_used;
- spin_unlock(&sinfo->lock);
-
- sinfo = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA);
- spin_lock(&sinfo->lock);
- if (sinfo->flags & BTRFS_BLOCK_GROUP_DATA)
- data_used = 0;
- meta_used = sinfo->bytes_used;
- spin_unlock(&sinfo->lock);
-
- num_bytes = (data_used >> fs_info->sb->s_blocksize_bits) *
- csum_size * 2;
- num_bytes += div_u64(data_used + meta_used, 50);
-
- if (num_bytes * 3 > meta_used)
- num_bytes = div_u64(meta_used, 3);
-
- return ALIGN(num_bytes, fs_info->extent_root->nodesize << 10);
-}
-
static void update_global_block_rsv(struct btrfs_fs_info *fs_info)
{
struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;
struct btrfs_space_info *sinfo = block_rsv->space_info;
u64 num_bytes;
- num_bytes = calc_global_metadata_size(fs_info);
+ /*
+ * The global block rsv is based on the size of the extent tree, the
+ * checksum tree and the root tree. If the fs is empty we want to set
+ * it to a minimal amount for safety.
+ */
+ num_bytes = btrfs_root_used(&fs_info->extent_root->root_item) +
+ btrfs_root_used(&fs_info->csum_root->root_item) +
+ btrfs_root_used(&fs_info->tree_root->root_item);
+ num_bytes = max_t(u64, num_bytes, SZ_16M);
spin_lock(&sinfo->lock);
spin_lock(&block_rsv->lock);
struct inode *inode)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
- struct btrfs_block_rsv *src_rsv = get_block_rsv(trans, root);
+ /*
+ * We always use trans->block_rsv here as we will have reserved space
+ * for our orphan when starting the transaction, using get_block_rsv()
+ * here will sometimes make us choose the wrong block rsv as we could be
+ * doing a reloc inode for a non refcounted root.
+ */
+ struct btrfs_block_rsv *src_rsv = trans->block_rsv;
struct btrfs_block_rsv *dst_rsv = root->orphan_block_rsv;
/*
* the middle of a transaction commit. We also don't need the delalloc
* mutex since we won't race with anybody. We need this mostly to make
* lockdep shut its filthy mouth.
+ *
+ * If we have a transaction open (can happen if we call truncate_block
+ * from truncate), then we need FLUSH_LIMIT so we don't deadlock.
*/
if (btrfs_is_free_space_inode(inode)) {
flush = BTRFS_RESERVE_NO_FLUSH;
delalloc_lock = false;
+ } else if (current->journal_info) {
+ flush = BTRFS_RESERVE_FLUSH_LIMIT;
}
if (flush != BTRFS_RESERVE_NO_FLUSH &&
printk(KERN_INFO "BTRFS: space_info %llu has %llu free, is %sfull\n",
info->flags,
info->total_bytes - info->bytes_used - info->bytes_pinned -
- info->bytes_reserved - info->bytes_readonly,
- (info->full) ? "" : "not ");
+ info->bytes_reserved - info->bytes_readonly -
+ info->bytes_may_use, (info->full) ? "" : "not ");
printk(KERN_INFO "BTRFS: space_info total=%llu, used=%llu, pinned=%llu, "
"reserved=%llu, may_use=%llu, readonly=%llu\n",
info->total_bytes, info->bytes_used, info->bytes_pinned,
bool skinny_metadata = btrfs_fs_incompat(root->fs_info,
SKINNY_METADATA);
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (btrfs_test_is_dummy_root(root)) {
buf = btrfs_init_new_buffer(trans, root, root->alloc_bytenr,
level);
root->alloc_bytenr += blocksize;
return buf;
}
+#endif
block_rsv = use_block_rsv(trans, root, blocksize);
if (IS_ERR(block_rsv))
delayed_refs = &trans->transaction->delayed_refs;
spin_lock(&delayed_refs->lock);
- if (btrfs_qgroup_insert_dirty_extent(delayed_refs, qrecord))
+ if (btrfs_qgroup_insert_dirty_extent(trans->root->fs_info,
+ delayed_refs, qrecord))
kfree(qrecord);
spin_unlock(&delayed_refs->lock);
if (found_key.objectid >= key->objectid &&
found_key.type == BTRFS_BLOCK_GROUP_ITEM_KEY) {
- ret = 0;
+ struct extent_map_tree *em_tree;
+ struct extent_map *em;
+
+ em_tree = &root->fs_info->mapping_tree.map_tree;
+ read_lock(&em_tree->lock);
+ em = lookup_extent_mapping(em_tree, found_key.objectid,
+ found_key.offset);
+ read_unlock(&em_tree->lock);
+ if (!em) {
+ btrfs_err(root->fs_info,
+ "logical %llu len %llu found bg but no related chunk",
+ found_key.objectid, found_key.offset);
+ ret = -ENOENT;
+ } else {
+ ret = 0;
+ }
goto out;
}
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projects / cascardo / linux.git / blobdiff