Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01843C04EB9 for ; Thu, 6 Dec 2018 06:59:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BC8DA214DB for ; Thu, 6 Dec 2018 06:59:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BC8DA214DB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-btrfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729016AbeLFG7P (ORCPT ); Thu, 6 Dec 2018 01:59:15 -0500 Received: from mx2.suse.de ([195.135.220.15]:59436 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728489AbeLFG7P (ORCPT ); Thu, 6 Dec 2018 01:59:15 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id AD882AED3 for ; Thu, 6 Dec 2018 06:59:12 +0000 (UTC) From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH 3/8] btrfs: delayed-ref: Use btrfs_ref to refactor btrfs_add_delayed_tree_ref() Date: Thu, 6 Dec 2018 14:58:58 +0800 Message-Id: <20181206065903.11343-4-wqu@suse.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20181206065903.11343-1-wqu@suse.com> References: <20181206065903.11343-1-wqu@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org btrfs_add_delayed_tree_ref() has a longer and longer parameter list, and some caller like btrfs_inc_extent_ref() are using @owner as level for delayed tree ref. Instead of making the parameter list longer and longer, use btrfs_ref to refactor it, so each parameter assignment should be self-explaining without dirty level/owner trick, and provides the basis for later refactor. Signed-off-by: Qu Wenruo --- fs/btrfs/delayed-ref.c | 24 ++++++++++++++------- fs/btrfs/delayed-ref.h | 4 +--- fs/btrfs/extent-tree.c | 48 ++++++++++++++++++++++++------------------ 3 files changed, 44 insertions(+), 32 deletions(-) diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c index 11dd46be4017..c42b8ade7b07 100644 --- a/fs/btrfs/delayed-ref.c +++ b/fs/btrfs/delayed-ref.c @@ -710,9 +710,7 @@ static void init_delayed_ref_common(struct btrfs_fs_info *fs_info, * transaction commits. */ int btrfs_add_delayed_tree_ref(struct btrfs_trans_handle *trans, - u64 bytenr, u64 num_bytes, u64 parent, - u64 ref_root, int level, bool for_reloc, - int action, + struct btrfs_ref *generic_ref, struct btrfs_delayed_extent_op *extent_op, int *old_ref_mod, int *new_ref_mod) { @@ -722,10 +720,17 @@ int btrfs_add_delayed_tree_ref(struct btrfs_trans_handle *trans, struct btrfs_delayed_ref_root *delayed_refs; struct btrfs_qgroup_extent_record *record = NULL; int qrecord_inserted; - bool is_system = (ref_root == BTRFS_CHUNK_TREE_OBJECTID); + bool is_system = (generic_ref->real_root == BTRFS_CHUNK_TREE_OBJECTID); + int action = generic_ref->action; + int level = generic_ref->tree_ref.level; int ret; + u64 bytenr = generic_ref->bytenr; + u64 num_bytes = generic_ref->len; + u64 parent = generic_ref->parent; u8 ref_type; + ASSERT(generic_ref && generic_ref->type == BTRFS_REF_METADATA && + generic_ref->action); BUG_ON(extent_op && extent_op->is_data); ref = kmem_cache_alloc(btrfs_delayed_tree_ref_cachep, GFP_NOFS); if (!ref) @@ -738,7 +743,9 @@ int btrfs_add_delayed_tree_ref(struct btrfs_trans_handle *trans, } if (test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags) && - is_fstree(ref_root) && !for_reloc) { + is_fstree(generic_ref->real_root) && + is_fstree(generic_ref->tree_ref.root) && + !generic_ref->skip_qgroup) { record = kzalloc(sizeof(*record), GFP_NOFS); if (!record) { kmem_cache_free(btrfs_delayed_tree_ref_cachep, ref); @@ -753,13 +760,14 @@ int btrfs_add_delayed_tree_ref(struct btrfs_trans_handle *trans, ref_type = BTRFS_TREE_BLOCK_REF_KEY; init_delayed_ref_common(fs_info, &ref->node, bytenr, num_bytes, - ref_root, action, ref_type); - ref->root = ref_root; + generic_ref->tree_ref.root, action, ref_type); + ref->root = generic_ref->tree_ref.root; ref->parent = parent; ref->level = level; init_delayed_ref_head(head_ref, record, bytenr, num_bytes, - ref_root, 0, action, false, is_system); + generic_ref->tree_ref.root, 0, action, false, + is_system); head_ref->extent_op = extent_op; delayed_refs = &trans->transaction->delayed_refs; diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h index e36d6b05d85e..dbe029c4e01b 100644 --- a/fs/btrfs/delayed-ref.h +++ b/fs/btrfs/delayed-ref.h @@ -333,9 +333,7 @@ static inline void btrfs_put_delayed_ref_head(struct btrfs_delayed_ref_head *hea } int btrfs_add_delayed_tree_ref(struct btrfs_trans_handle *trans, - u64 bytenr, u64 num_bytes, u64 parent, - u64 ref_root, int level, bool for_reloc, - int action, + struct btrfs_ref *generic_ref, struct btrfs_delayed_extent_op *extent_op, int *old_ref_mod, int *new_ref_mod); int btrfs_add_delayed_data_ref(struct btrfs_trans_handle *trans, diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index ea68d288d761..ecfa0234863b 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2031,6 +2031,7 @@ int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, bool for_reloc) { struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_ref generic_ref = { 0 }; int old_ref_mod, new_ref_mod; int ret; @@ -2040,13 +2041,13 @@ int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, btrfs_ref_tree_mod(root, bytenr, num_bytes, parent, root_objectid, owner, offset, BTRFS_ADD_DELAYED_REF); + btrfs_init_generic_ref(&generic_ref, BTRFS_ADD_DELAYED_REF, bytenr, + num_bytes, root->root_key.objectid, parent); + generic_ref.skip_qgroup = for_reloc; if (owner < BTRFS_FIRST_FREE_OBJECTID) { - ret = btrfs_add_delayed_tree_ref(trans, bytenr, - num_bytes, parent, - root_objectid, (int)owner, - for_reloc, - BTRFS_ADD_DELAYED_REF, NULL, - &old_ref_mod, &new_ref_mod); + btrfs_init_tree_ref(&generic_ref, (int)owner, root_objectid); + ret = btrfs_add_delayed_tree_ref(trans, &generic_ref, + NULL, &old_ref_mod, &new_ref_mod); } else { ret = btrfs_add_delayed_data_ref(trans, root, bytenr, num_bytes, parent, @@ -7013,9 +7014,16 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans, u64 parent, int last_ref) { struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_ref generic_ref = { 0 }; int pin = 1; int ret; + btrfs_init_generic_ref(&generic_ref, BTRFS_DROP_DELAYED_REF, + buf->start, buf->len, root->root_key.objectid, + parent); + btrfs_init_tree_ref(&generic_ref, btrfs_header_level(buf), + root->root_key.objectid); + if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) { int old_ref_mod, new_ref_mod; @@ -7023,11 +7031,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans, root->root_key.objectid, btrfs_header_level(buf), 0, BTRFS_DROP_DELAYED_REF); - ret = btrfs_add_delayed_tree_ref(trans, buf->start, - buf->len, parent, - root->root_key.objectid, - btrfs_header_level(buf), false, - BTRFS_DROP_DELAYED_REF, NULL, + ret = btrfs_add_delayed_tree_ref(trans, &generic_ref, NULL, &old_ref_mod, &new_ref_mod); BUG_ON(ret); /* -ENOMEM */ pin = old_ref_mod >= 0 && new_ref_mod < 0; @@ -7080,6 +7084,7 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, u64 owner, u64 offset, bool for_reloc) { struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_ref generic_ref = { 0 }; int old_ref_mod, new_ref_mod; int ret; @@ -7091,6 +7096,9 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, root_objectid, owner, offset, BTRFS_DROP_DELAYED_REF); + btrfs_init_generic_ref(&generic_ref, BTRFS_DROP_DELAYED_REF, bytenr, + num_bytes, root->root_key.objectid, parent); + generic_ref.skip_qgroup = for_reloc; /* * tree log blocks never actually go into the extent allocation * tree, just update pinning info and exit early. @@ -7102,11 +7110,8 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, old_ref_mod = new_ref_mod = 0; ret = 0; } else if (owner < BTRFS_FIRST_FREE_OBJECTID) { - ret = btrfs_add_delayed_tree_ref(trans, bytenr, - num_bytes, parent, - root_objectid, (int)owner, - for_reloc, - BTRFS_DROP_DELAYED_REF, NULL, + btrfs_init_tree_ref(&generic_ref, (int)owner, root_objectid); + ret = btrfs_add_delayed_tree_ref(trans, &generic_ref, NULL, &old_ref_mod, &new_ref_mod); } else { ret = btrfs_add_delayed_data_ref(trans, root, bytenr, @@ -8276,6 +8281,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans, struct btrfs_block_rsv *block_rsv; struct extent_buffer *buf; struct btrfs_delayed_extent_op *extent_op; + struct btrfs_ref generic_ref = { 0 }; u64 flags = 0; int ret; bool for_reloc = false; @@ -8337,11 +8343,11 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans, btrfs_ref_tree_mod(root, ins.objectid, ins.offset, parent, root_objectid, level, 0, BTRFS_ADD_DELAYED_EXTENT); - ret = btrfs_add_delayed_tree_ref(trans, ins.objectid, - ins.offset, parent, - root_objectid, level, - for_reloc, - BTRFS_ADD_DELAYED_EXTENT, + btrfs_init_generic_ref(&generic_ref, BTRFS_ADD_DELAYED_EXTENT, + ins.objectid, ins.offset, + root->root_key.objectid, parent); + btrfs_init_tree_ref(&generic_ref, level, root_objectid); + ret = btrfs_add_delayed_tree_ref(trans, &generic_ref, extent_op, NULL, NULL); if (ret) goto out_free_delayed; -- 2.19.2