[v3.1,8/9] btrfs: extent-tree: Use btrfs_ref to refactor btrfs_free_extent()

Message ID	20190404064537.4031-9-wqu@suse.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-btrfs-owner@kernel.org> From: Qu Wenruo <wqu@suse.com> To: linux-btrfs@vger.kernel.org Subject: [PATCH v3.1 8/9] btrfs: extent-tree: Use btrfs_ref to refactor btrfs_free_extent() Date: Thu, 4 Apr 2019 14:45:36 +0800 Message-Id: <20190404064537.4031-9-wqu@suse.com> In-Reply-To: <20190404064537.4031-1-wqu@suse.com> References: <20190404064537.4031-1-wqu@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk
Series	btrfs: Refactor delayed ref parameter list \| expand [v3.1,0/9] btrfs: Refactor delayed ref parameter list [v3.1,1/9] btrfs: delayed-ref: Introduce better documented delayed ref structures [v3.1,2/9] btrfs: extent-tree: Open-code process_func in __btrfs_mod_ref [v3.1,3/9] btrfs: delayed-ref: Use btrfs_ref to refactor btrfs_add_delayed_tree_ref() [v3.1,4/9] btrfs: delayed-ref: Use btrfs_ref to refactor btrfs_add_delayed_data_ref() [v3.1,5/9] btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod() [v3.1,6/9] btrfs: extent-tree: Use btrfs_ref to refactor add_pinned_bytes() [v3.1,7/9] btrfs: extent-tree: Use btrfs_ref to refactor btrfs_inc_extent_ref() [v3.1,8/9] btrfs: extent-tree: Use btrfs_ref to refactor btrfs_free_extent() [v3.1,9/9] btrfs: qgroup: Don't scan leaf if we're modifying reloc tree

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 19dae09bbe22..7e774d48c48c 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2751,10 +2751,7 @@ int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, u64 bytenr, u64 num_bytes, u64 flags, int level, int is_data); -int btrfs_free_extent(struct btrfs_trans_handle *trans, - struct btrfs_root *root, - u64 bytenr, u64 num_bytes, u64 parent, u64 root_objectid, - u64 owner, u64 offset); +int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_ref *ref); int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len, int delalloc); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 1f4cb91d5c14..2c08b9646c61 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3280,9 +3280,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans, if (inc) ret = btrfs_inc_extent_ref(trans, &generic_ref); else - ret = btrfs_free_extent(trans, root, bytenr, - num_bytes, parent, ref_root, - key.objectid, key.offset); + ret = btrfs_free_extent(trans, &generic_ref); if (ret) goto fail; } else { @@ -3296,9 +3294,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans, if (inc) ret = btrfs_inc_extent_ref(trans, &generic_ref); else - ret = btrfs_free_extent(trans, root, bytenr, - num_bytes, parent, ref_root, - level - 1, 0); + ret = btrfs_free_extent(trans, &generic_ref); if (ret) goto fail; } @@ -7330,47 +7326,43 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans, } /* Can return -ENOMEM */ -int btrfs_free_extent(struct btrfs_trans_handle *trans, - struct btrfs_root *root, - u64 bytenr, u64 num_bytes, u64 parent, u64 root_objectid, - u64 owner, u64 offset) +int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_ref *ref) { - struct btrfs_fs_info *fs_info = root->fs_info; - struct btrfs_ref generic_ref = { 0 }; + struct btrfs_fs_info *fs_info = trans->fs_info; int old_ref_mod, new_ref_mod; int ret; if (btrfs_is_testing(fs_info)) return 0; - btrfs_init_generic_ref(&generic_ref, BTRFS_DROP_DELAYED_REF, bytenr, - num_bytes, parent); - generic_ref.real_root = root->root_key.objectid; /* * tree log blocks never actually go into the extent allocation * tree, just update pinning info and exit early. */ - if (root_objectid == BTRFS_TREE_LOG_OBJECTID) { - WARN_ON(owner >= BTRFS_FIRST_FREE_OBJECTID); + if ((ref->type == BTRFS_REF_METADATA && + ref->tree_ref.root == BTRFS_TREE_LOG_OBJECTID) || + (ref->type == BTRFS_REF_DATA && + ref->data_ref.ref_root == BTRFS_TREE_LOG_OBJECTID)) { /* unlocks the pinned mutex */ - btrfs_pin_extent(fs_info, bytenr, num_bytes, 1); + btrfs_pin_extent(fs_info, ref->bytenr, ref->len, 1); old_ref_mod = new_ref_mod = 0; ret = 0; - } else if (owner < BTRFS_FIRST_FREE_OBJECTID) { - btrfs_init_tree_ref(&generic_ref, (int)owner, root_objectid); - ret = btrfs_add_delayed_tree_ref(trans, &generic_ref, NULL, + } else if (ref->type == BTRFS_REF_METADATA) { + ret = btrfs_add_delayed_tree_ref(trans, ref, NULL, &old_ref_mod, &new_ref_mod); } else { - btrfs_init_data_ref(&generic_ref, root_objectid, owner, offset); - ret = btrfs_add_delayed_data_ref(trans, &generic_ref, 0, + ret = btrfs_add_delayed_data_ref(trans, ref, 0, &old_ref_mod, &new_ref_mod); } - if (root_objectid != BTRFS_TREE_LOG_OBJECTID) - btrfs_ref_tree_mod(fs_info, &generic_ref); + if (!((ref->type == BTRFS_REF_METADATA && + ref->tree_ref.root == BTRFS_TREE_LOG_OBJECTID) || + (ref->type == BTRFS_REF_DATA && + ref->data_ref.ref_root == BTRFS_TREE_LOG_OBJECTID))) + btrfs_ref_tree_mod(fs_info, ref); if (ret == 0 && old_ref_mod >= 0 && new_ref_mod < 0) - add_pinned_bytes(fs_info, &generic_ref); + add_pinned_bytes(fs_info, ref); return ret; } @@ -8977,6 +8969,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans, u64 parent; struct btrfs_key key; struct btrfs_key first_key; + struct btrfs_ref ref = { 0 }; struct extent_buffer *next; int level = wc->level; int reada = 0; @@ -9149,9 +9142,10 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans, wc->drop_level = level; find_next_key(path, level, &wc->drop_progress); - ret = btrfs_free_extent(trans, root, bytenr, fs_info->nodesize, - parent, root->root_key.objectid, - level - 1, 0); + btrfs_init_generic_ref(&ref, BTRFS_DROP_DELAYED_REF, bytenr, + fs_info->nodesize, parent); + btrfs_init_tree_ref(&ref, level - 1, root->root_key.objectid); + ret = btrfs_free_extent(trans, &ref); if (ret) goto out_unlock; } diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 0b6c59bd4e7d..aa4528f7b684 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -997,11 +997,14 @@ int __btrfs_drop_extents(struct btrfs_trans_handle *trans, extent_end = ALIGN(extent_end, fs_info->sectorsize); } else if (update_refs && disk_bytenr > 0) { - ret = btrfs_free_extent(trans, root, - disk_bytenr, num_bytes, 0, + btrfs_init_generic_ref(&ref, + BTRFS_DROP_DELAYED_REF, + disk_bytenr, num_bytes, 0); + btrfs_init_data_ref(&ref, root->root_key.objectid, - key.objectid, key.offset - - extent_offset); + key.objectid, + key.offset - extent_offset); + ret = btrfs_free_extent(trans, &ref); BUG_ON(ret); /* -ENOMEM */ inode_sub_bytes(inode, extent_end - key.offset); @@ -1318,6 +1321,9 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, other_start = end; other_end = 0; + btrfs_init_generic_ref(&ref, BTRFS_DROP_DELAYED_REF, bytenr, + num_bytes, 0); + btrfs_init_data_ref(&ref, root->root_key.objectid, ino, orig_offset); if (extent_mergeable(leaf, path->slots[0] + 1, ino, bytenr, orig_offset, &other_start, &other_end)) { @@ -1328,9 +1334,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, extent_end = other_end; del_slot = path->slots[0] + 1; del_nr++; - ret = btrfs_free_extent(trans, root, bytenr, num_bytes, - 0, root->root_key.objectid, - ino, orig_offset); + ret = btrfs_free_extent(trans, &ref); if (ret) { btrfs_abort_transaction(trans, ret); goto out; @@ -1348,9 +1352,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, key.offset = other_start; del_slot = path->slots[0]; del_nr++; - ret = btrfs_free_extent(trans, root, bytenr, num_bytes, - 0, root->root_key.objectid, - ino, orig_offset); + ret = btrfs_free_extent(trans, &ref); if (ret) { btrfs_abort_transaction(trans, ret); goto out; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index cecd2e58e0d5..4b900a4d29e0 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4709,12 +4709,17 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans, if (found_extent && (test_bit(BTRFS_ROOT_REF_COWS, &root->state) || root == fs_info->tree_root)) { + struct btrfs_ref ref = { 0 }; + btrfs_set_path_blocking(path); bytes_deleted += extent_num_bytes; - ret = btrfs_free_extent(trans, root, extent_start, - extent_num_bytes, 0, - btrfs_header_owner(leaf), - ino, extent_offset); + + btrfs_init_generic_ref(&ref, BTRFS_DROP_DELAYED_REF, + extent_start, extent_num_bytes, 0); + ref.real_root = root->root_key.objectid; + btrfs_init_data_ref(&ref, btrfs_header_owner(leaf), + ino, extent_offset); + ret = btrfs_free_extent(trans, &ref); if (ret) { btrfs_abort_transaction(trans, ret); break; diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index d283a70eed06..2f8826ccb35d 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -1716,9 +1716,12 @@ int replace_file_extents(struct btrfs_trans_handle *trans, break; } - ret = btrfs_free_extent(trans, root, bytenr, num_bytes, - parent, btrfs_header_owner(leaf), - key.objectid, key.offset); + btrfs_init_generic_ref(&ref, BTRFS_DROP_DELAYED_REF, bytenr, + num_bytes, parent); + ref.real_root = root->root_key.objectid; + btrfs_init_data_ref(&ref, btrfs_header_owner(leaf), + key.objectid, key.offset); + ret = btrfs_free_extent(trans, &ref); if (ret) { btrfs_abort_transaction(trans, ret); break; @@ -1934,14 +1937,18 @@ int replace_path(struct btrfs_trans_handle *trans, struct reloc_control *rc, ret = btrfs_inc_extent_ref(trans, &ref); BUG_ON(ret); - ret = btrfs_free_extent(trans, src, new_bytenr, blocksize, - path->nodes[level]->start, - src->root_key.objectid, level - 1, 0); + btrfs_init_generic_ref(&ref, BTRFS_DROP_DELAYED_REF, new_bytenr, + blocksize, path->nodes[level]->start); + btrfs_init_tree_ref(&ref, level - 1, src->root_key.objectid); + ref.skip_qgroup = true; + ret = btrfs_free_extent(trans, &ref); BUG_ON(ret); - ret = btrfs_free_extent(trans, dest, old_bytenr, blocksize, - 0, dest->root_key.objectid, level - 1, - 0); + btrfs_init_generic_ref(&ref, BTRFS_DROP_DELAYED_REF, old_bytenr, + blocksize, 0); + btrfs_init_tree_ref(&ref, level - 1, dest->root_key.objectid); + ref.skip_qgroup = true; + ret = btrfs_free_extent(trans, &ref); BUG_ON(ret); btrfs_unlock_up_safe(path, 0);

[v3.1,8/9] btrfs: extent-tree: Use btrfs_ref to refactor btrfs_free_extent()

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