diff options
Diffstat (limited to 'fs/btrfs/extent-tree.c')
-rw-r--r-- | fs/btrfs/extent-tree.c | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 6914cd8024ba..cd2d36580f1a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2220,6 +2220,12 @@ static noinline int check_delayed_ref(struct btrfs_root *root, } if (!mutex_trylock(&head->mutex)) { + if (path->nowait) { + spin_unlock(&delayed_refs->lock); + btrfs_put_transaction(cur_trans); + return -EAGAIN; + } + refcount_inc(&head->refs); spin_unlock(&delayed_refs->lock); @@ -2686,13 +2692,8 @@ static int unpin_extent_range(struct btrfs_fs_info *fs_info, len = cache->start + cache->length - start; len = min(len, end + 1 - start); - down_read(&fs_info->commit_root_sem); - if (start < cache->last_byte_to_unpin && return_free_space) { - u64 add_len = min(len, cache->last_byte_to_unpin - start); - - btrfs_add_free_space(cache, start, add_len); - } - up_read(&fs_info->commit_root_sem); + if (return_free_space) + btrfs_add_free_space(cache, start, len); start += len; total_unpinned += len; @@ -3804,7 +3805,8 @@ static int do_allocation_zoned(struct btrfs_block_group *block_group, block_group->start == fs_info->data_reloc_bg || fs_info->data_reloc_bg == 0); - if (block_group->ro || block_group->zoned_data_reloc_ongoing) { + if (block_group->ro || + test_bit(BLOCK_GROUP_FLAG_ZONED_DATA_RELOC, &block_group->runtime_flags)) { ret = 1; goto out; } @@ -3881,7 +3883,7 @@ out: * regular extents) at the same time to the same zone, which * easily break the write pointer. */ - block_group->zoned_data_reloc_ongoing = 1; + set_bit(BLOCK_GROUP_FLAG_ZONED_DATA_RELOC, &block_group->runtime_flags); fs_info->data_reloc_bg = 0; } spin_unlock(&fs_info->relocation_bg_lock); @@ -4888,6 +4890,9 @@ btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root, !test_bit(BTRFS_ROOT_RESET_LOCKDEP_CLASS, &root->state)) lockdep_owner = BTRFS_FS_TREE_OBJECTID; + /* btrfs_clean_tree_block() accesses generation field. */ + btrfs_set_header_generation(buf, trans->transid); + /* * This needs to stay, because we could allocate a freed block from an * old tree into a new tree, so we need to make sure this new block is @@ -5639,6 +5644,8 @@ static noinline int walk_up_tree(struct btrfs_trans_handle *trans, */ int btrfs_drop_snapshot(struct btrfs_root *root, int update_ref, int for_reloc) { + const bool is_reloc_root = (root->root_key.objectid == + BTRFS_TREE_RELOC_OBJECTID); struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct btrfs_trans_handle *trans; @@ -5798,6 +5805,9 @@ int btrfs_drop_snapshot(struct btrfs_root *root, int update_ref, int for_reloc) goto out_end_trans; } + if (!is_reloc_root) + btrfs_set_last_root_drop_gen(fs_info, trans->transid); + btrfs_end_transaction_throttle(trans); if (!for_reloc && btrfs_need_cleaner_sleep(fs_info)) { btrfs_debug(fs_info, @@ -5832,7 +5842,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root, int update_ref, int for_reloc) goto out_end_trans; } - if (root->root_key.objectid != BTRFS_TREE_RELOC_OBJECTID) { + if (!is_reloc_root) { ret = btrfs_find_root(tree_root, &root->root_key, path, NULL, NULL); if (ret < 0) { @@ -5864,6 +5874,9 @@ int btrfs_drop_snapshot(struct btrfs_root *root, int update_ref, int for_reloc) btrfs_put_root(root); root_dropped = true; out_end_trans: + if (!is_reloc_root) + btrfs_set_last_root_drop_gen(fs_info, trans->transid); + btrfs_end_transaction_throttle(trans); out_free: kfree(wc); |