[v2,07/20] btrfs-progs: stop accessing ->csum_root directly

Message ID	75dc014c7b02490491f6a84222323978e810037c.1636399481.git.josef@toxicpanda.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-btrfs-owner@kernel.org> From: Josef Bacik <josef@toxicpanda.com> To: linux-btrfs@vger.kernel.org, kernel-team@fb.com Subject: [PATCH v2 07/20] btrfs-progs: stop accessing ->csum_root directly Date: Mon, 8 Nov 2021 14:26:35 -0500 Message-Id: <75dc014c7b02490491f6a84222323978e810037c.1636399481.git.josef@toxicpanda.com> In-Reply-To: <cover.1636399481.git.josef@toxicpanda.com> References: <cover.1636399481.git.josef@toxicpanda.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	btrfs-progs: extent tree v2 global root support prep work \| expand [v2,00/20] btrfs-progs: extent tree v2 global root support prep work [v2,01/20] btrfs-progs: simplify btrfs_make_block_group [v2,02/20] btrfs-progs: check: don't walk down non fs-trees for qgroup check [v2,03/20] btrfs-progs: filesystem-show: close ctree once we're done [v2,04/20] btrfs-progs: add a helper for setting up a root node [v2,05/20] btrfs-progs: btrfs-shared: stop passing root to csum related functions [v2,06/20] btrfs-progs: check: stop passing csum root around [v2,07/20] btrfs-progs: stop accessing ->csum_root directly [v2,08/20] btrfs-progs: image: keep track of seen blocks when walking trees [v2,09/20] btrfs-progs: common: move btrfs_fix_block_accounting to repair.c [v2,10/20] btrfs-progs: check: abstract out the used marking helpers [v2,11/20] btrfs-progs: check: move btrfs_mark_used_tree_blocks to common [v2,12/20] btrfs-progs: mark reloc roots as used [v2,13/20] btrfs-progs: stop accessing ->extent_root directly [v2,14/20] btrfs-progs: stop accessing ->free_space_root directly [v2,15/20] btrfs-progs: track csum, extent, and free space trees in a rb tree [v2,16/20] btrfs-progs: check: make reinit work per found root item [v2,17/20] btrfs-progs: check: check the global roots for uptodate root nodes [v2,18/20] btrfs-progs: check: check all of the csum roots [v2,19/20] btrfs-progs: check: fill csum root from all extent roots [v2,20/20] btrfs-progs: common: search all extent roots for marking used space

diff --git a/btrfs-corrupt-block.c b/btrfs-corrupt-block.c index c1624ee1..d7904b6f 100644 --- a/btrfs-corrupt-block.c +++ b/btrfs-corrupt-block.c @@ -1031,7 +1031,7 @@ static int delete_csum(struct btrfs_root *root, u64 bytenr, u64 bytes) struct btrfs_trans_handle *trans; int ret; - root = root->fs_info->csum_root; + root = btrfs_csum_root(root->fs_info, bytenr); trans = btrfs_start_transaction(root, 1); if (IS_ERR(trans)) { fprintf(stderr, "Couldn't start transaction %ld\n", diff --git a/check/main.c b/check/main.c index 22306cf4..632dfba0 100644 --- a/check/main.c +++ b/check/main.c @@ -5988,7 +5988,7 @@ static int check_csums(struct btrfs_root *root) unsigned long leaf_offset; bool verify_csum = !!check_data_csum; - root = gfs_info->csum_root; + root = btrfs_csum_root(gfs_info, 0); if (!extent_buffer_uptodate(root->node)) { fprintf(stderr, "No valid csum tree found\n"); return -ENOENT; @@ -9496,7 +9496,7 @@ static int populate_csum(struct btrfs_trans_handle *trans, static int fill_csum_tree_from_one_fs_root(struct btrfs_trans_handle *trans, struct btrfs_root *cur_root) { - struct btrfs_root *csum_root = gfs_info->csum_root; + struct btrfs_root *csum_root; struct btrfs_path path; struct btrfs_key key; struct extent_buffer *node; @@ -9532,6 +9532,7 @@ static int fill_csum_tree_from_one_fs_root(struct btrfs_trans_handle *trans, start = btrfs_file_extent_disk_bytenr(node, fi); len = btrfs_file_extent_disk_num_bytes(node, fi); + csum_root = btrfs_csum_root(gfs_info, start); ret = populate_csum(trans, csum_root, buf, start, len); if (ret == -EEXIST) ret = 0; @@ -9618,7 +9619,7 @@ out: static int fill_csum_tree_from_extent(struct btrfs_trans_handle *trans) { struct btrfs_root *extent_root = gfs_info->extent_root; - struct btrfs_root *csum_root = gfs_info->csum_root; + struct btrfs_root *csum_root; struct btrfs_path path; struct btrfs_extent_item *ei; struct extent_buffer *leaf; @@ -9668,6 +9669,7 @@ static int fill_csum_tree_from_extent(struct btrfs_trans_handle *trans) continue; } + csum_root = btrfs_csum_root(gfs_info, key.objectid); ret = populate_csum(trans, csum_root, buf, key.objectid, key.offset); if (ret) @@ -10688,7 +10690,8 @@ static int cmd_check(const struct cmd_struct *cmd, int argc, char **argv) if (init_csum_tree) { printf("Reinitialize checksum tree\n"); - ret = btrfs_fsck_reinit_root(trans, gfs_info->csum_root); + ret = btrfs_fsck_reinit_root(trans, + btrfs_csum_root(gfs_info, 0)); if (ret) { error("checksum tree initialization failed: %d", ret); @@ -10719,7 +10722,9 @@ static int cmd_check(const struct cmd_struct *cmd, int argc, char **argv) err |= !!ret; goto close_out; } - if (!extent_buffer_uptodate(gfs_info->csum_root->node)) { + + root = btrfs_csum_root(gfs_info, 0); + if (!extent_buffer_uptodate(root->node)) { error("critical: csum_root, unable to check the filesystem"); ret = -EIO; err |= !!ret; diff --git a/check/mode-common.c b/check/mode-common.c index 0059672c..0c3bd38b 100644 --- a/check/mode-common.c +++ b/check/mode-common.c @@ -287,6 +287,7 @@ out: */ int count_csum_range(u64 start, u64 len, u64 *found) { + struct btrfs_root *csum_root = btrfs_csum_root(gfs_info, start); struct btrfs_key key; struct btrfs_path path; struct extent_buffer *leaf; @@ -302,8 +303,7 @@ int count_csum_range(u64 start, u64 len, u64 *found) key.offset = start; key.type = BTRFS_EXTENT_CSUM_KEY; - ret = btrfs_search_slot(NULL, gfs_info->csum_root, - &key, &path, 0, 0); + ret = btrfs_search_slot(NULL, csum_root, &key, &path, 0, 0); if (ret < 0) goto out; if (ret > 0 && path.slots[0] > 0) { @@ -317,7 +317,7 @@ int count_csum_range(u64 start, u64 len, u64 *found) while (len > 0) { leaf = path.nodes[0]; if (path.slots[0] >= btrfs_header_nritems(leaf)) { - ret = btrfs_next_leaf(gfs_info->csum_root, &path); + ret = btrfs_next_leaf(csum_root, &path); if (ret > 0) break; else if (ret < 0) diff --git a/cmds/rescue-chunk-recover.c b/cmds/rescue-chunk-recover.c index 03c7f48f..115d91d7 100644 --- a/cmds/rescue-chunk-recover.c +++ b/cmds/rescue-chunk-recover.c @@ -1801,7 +1801,7 @@ static int btrfs_rebuild_chunk_stripes(struct recover_control *rc, return ret; } -static int next_csum(struct btrfs_root *root, +static int next_csum(struct btrfs_root *csum_root, struct extent_buffer **leaf, struct btrfs_path *path, int *slot, @@ -1811,10 +1811,9 @@ static int next_csum(struct btrfs_root *root, struct btrfs_key *key) { int ret = 0; - struct btrfs_root *csum_root = root->fs_info->csum_root; struct btrfs_csum_item *csum_item; - u32 blocksize = root->fs_info->sectorsize; - u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); + u32 blocksize = csum_root->fs_info->sectorsize; + u16 csum_size = btrfs_super_csum_size(csum_root->fs_info->super_copy); int csums_in_item = btrfs_item_size_nr(*leaf, *slot) / csum_size; if (*csum_offset >= csums_in_item) { @@ -1994,7 +1993,6 @@ static int rebuild_raid_data_chunk_stripes(struct recover_control *rc, LIST_HEAD(unordered); LIST_HEAD(candidates); - csum_root = root->fs_info->csum_root; btrfs_init_path(&path); list_splice_init(&chunk->dextents, &candidates); again: @@ -2005,6 +2003,7 @@ again: key.type = BTRFS_EXTENT_CSUM_KEY; key.offset = start; + csum_root = btrfs_csum_root(root->fs_info, start); ret = btrfs_search_slot(NULL, csum_root, &key, &path, 0, 0); if (ret < 0) { fprintf(stderr, "Search csum failed(%d)\n", ret); @@ -2022,8 +2021,8 @@ again: } else if (ret > 0) { slot = btrfs_header_nritems(leaf) - 1; btrfs_item_key_to_cpu(leaf, &key, slot); - if (item_end_offset(root, &key, leaf, slot) - > start) { + if (item_end_offset(csum_root, &key, + leaf, slot) > start) { csum_offset = start - key.offset; csum_offset /= blocksize; goto next_csum; @@ -2061,8 +2060,8 @@ again: goto out; } next_csum: - ret = next_csum(root, &leaf, &path, &slot, &csum_offset, &tree_csum, - end, &key); + ret = next_csum(csum_root, &leaf, &path, &slot, &csum_offset, + &tree_csum, end, &key); if (ret < 0) { fprintf(stderr, "Fetch csum failed\n"); goto fail_out; diff --git a/kernel-shared/ctree.h b/kernel-shared/ctree.h index 73904255..d2d1a006 100644 --- a/kernel-shared/ctree.h +++ b/kernel-shared/ctree.h @@ -1161,7 +1161,7 @@ struct btrfs_fs_info { struct btrfs_root *tree_root; struct btrfs_root *chunk_root; struct btrfs_root *dev_root; - struct btrfs_root *csum_root; + struct btrfs_root *_csum_root; struct btrfs_root *quota_root; struct btrfs_root *free_space_root; struct btrfs_root *uuid_root; diff --git a/kernel-shared/disk-io.c b/kernel-shared/disk-io.c index 7a797801..f157442d 100644 --- a/kernel-shared/disk-io.c +++ b/kernel-shared/disk-io.c @@ -755,6 +755,12 @@ int btrfs_fs_roots_compare_roots(struct rb_node *node1, struct rb_node *node2) return btrfs_fs_roots_compare_objectids(node1, (void *)&root->objectid); } +struct btrfs_root *btrfs_csum_root(struct btrfs_fs_info *fs_info, + u64 bytenr) +{ + return fs_info->_csum_root; +} + struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_key *location) { @@ -772,7 +778,7 @@ struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info, if (location->objectid == BTRFS_DEV_TREE_OBJECTID) return fs_info->dev_root; if (location->objectid == BTRFS_CSUM_TREE_OBJECTID) - return fs_info->csum_root; + return btrfs_csum_root(fs_info, location->offset); if (location->objectid == BTRFS_UUID_TREE_OBJECTID) return fs_info->uuid_root ? fs_info->uuid_root : ERR_PTR(-ENOENT); if (location->objectid == BTRFS_QUOTA_TREE_OBJECTID) @@ -808,7 +814,7 @@ void btrfs_free_fs_info(struct btrfs_fs_info *fs_info) free(fs_info->extent_root); free(fs_info->chunk_root); free(fs_info->dev_root); - free(fs_info->csum_root); + free(fs_info->_csum_root); free(fs_info->free_space_root); free(fs_info->uuid_root); free(fs_info->super_copy); @@ -828,7 +834,7 @@ struct btrfs_fs_info *btrfs_new_fs_info(int writable, u64 sb_bytenr) fs_info->extent_root = calloc(1, sizeof(struct btrfs_root)); fs_info->chunk_root = calloc(1, sizeof(struct btrfs_root)); fs_info->dev_root = calloc(1, sizeof(struct btrfs_root)); - fs_info->csum_root = calloc(1, sizeof(struct btrfs_root)); + fs_info->_csum_root = calloc(1, sizeof(struct btrfs_root)); fs_info->quota_root = calloc(1, sizeof(struct btrfs_root)); fs_info->free_space_root = calloc(1, sizeof(struct btrfs_root)); fs_info->uuid_root = calloc(1, sizeof(struct btrfs_root)); @@ -836,7 +842,7 @@ struct btrfs_fs_info *btrfs_new_fs_info(int writable, u64 sb_bytenr) if (!fs_info->tree_root || !fs_info->extent_root || !fs_info->chunk_root || !fs_info->dev_root || - !fs_info->csum_root || !fs_info->quota_root || + !fs_info->_csum_root || !fs_info->quota_root || !fs_info->free_space_root || !fs_info->uuid_root || !fs_info->super_copy) goto free_all; @@ -1008,11 +1014,11 @@ int btrfs_setup_all_roots(struct btrfs_fs_info *fs_info, u64 root_tree_bytenr, } fs_info->dev_root->track_dirty = 1; - ret = setup_root_or_create_block(fs_info, flags, fs_info->csum_root, + ret = setup_root_or_create_block(fs_info, flags, fs_info->_csum_root, BTRFS_CSUM_TREE_OBJECTID, "csum"); if (ret) return ret; - fs_info->csum_root->track_dirty = 1; + fs_info->_csum_root->track_dirty = 1; ret = find_and_setup_root(root, fs_info, BTRFS_UUID_TREE_OBJECTID, fs_info->uuid_root); @@ -1087,8 +1093,8 @@ void btrfs_release_all_roots(struct btrfs_fs_info *fs_info) free_extent_buffer(fs_info->free_space_root->node); if (fs_info->quota_root) free_extent_buffer(fs_info->quota_root->node); - if (fs_info->csum_root) - free_extent_buffer(fs_info->csum_root->node); + if (fs_info->_csum_root) + free_extent_buffer(fs_info->_csum_root->node); if (fs_info->dev_root) free_extent_buffer(fs_info->dev_root->node); if (fs_info->extent_root) @@ -1869,11 +1875,11 @@ static void backup_super_roots(struct btrfs_fs_info *info) btrfs_set_backup_dev_root_level(root_backup, btrfs_header_level(info->dev_root->node)); - btrfs_set_backup_csum_root(root_backup, info->csum_root->node->start); + btrfs_set_backup_csum_root(root_backup, info->_csum_root->node->start); btrfs_set_backup_csum_root_gen(root_backup, - btrfs_header_generation(info->csum_root->node)); + btrfs_header_generation(info->_csum_root->node)); btrfs_set_backup_csum_root_level(root_backup, - btrfs_header_level(info->csum_root->node)); + btrfs_header_level(info->_csum_root->node)); btrfs_set_backup_total_bytes(root_backup, btrfs_super_total_bytes(info->super_copy)); diff --git a/kernel-shared/disk-io.h b/kernel-shared/disk-io.h index e113d842..38abbca5 100644 --- a/kernel-shared/disk-io.h +++ b/kernel-shared/disk-io.h @@ -217,5 +217,5 @@ int btrfs_fs_roots_compare_roots(struct rb_node *node1, struct rb_node *node2); struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, u64 objectid); - +struct btrfs_root *btrfs_csum_root(struct btrfs_fs_info *fs_info, u64 bytenr); #endif diff --git a/kernel-shared/file-item.c b/kernel-shared/file-item.c index 5bf6aab4..12932e1d 100644 --- a/kernel-shared/file-item.c +++ b/kernel-shared/file-item.c @@ -185,7 +185,7 @@ fail: int btrfs_csum_file_block(struct btrfs_trans_handle *trans, u64 alloc_end, u64 bytenr, char *data, size_t len) { - struct btrfs_root *root = trans->fs_info->csum_root; + struct btrfs_root *root = btrfs_csum_root(trans->fs_info, bytenr); int ret = 0; struct btrfs_key file_key; struct btrfs_key found_key; @@ -401,7 +401,7 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, u64 bytenr, u64 len) int ret; u16 csum_size = btrfs_super_csum_size(trans->fs_info->super_copy); int blocksize = trans->fs_info->sectorsize; - struct btrfs_root *csum_root = trans->fs_info->csum_root; + struct btrfs_root *csum_root = btrfs_csum_root(trans->fs_info, bytenr); path = btrfs_alloc_path(); diff --git a/mkfs/main.c b/mkfs/main.c index ce86a0db..c6cc51e9 100644 --- a/mkfs/main.c +++ b/mkfs/main.c @@ -268,6 +268,7 @@ static int recow_roots(struct btrfs_trans_handle *trans, struct btrfs_root *root) { struct btrfs_fs_info *info = root->fs_info; + struct btrfs_root *csum_root = btrfs_csum_root(info, 0); int ret; ret = __recow_root(trans, info->fs_root); @@ -285,7 +286,7 @@ static int recow_roots(struct btrfs_trans_handle *trans, ret = __recow_root(trans, info->dev_root); if (ret) return ret; - ret = __recow_root(trans, info->csum_root); + ret = __recow_root(trans, csum_root); if (ret) return ret; if (info->free_space_root) {

[v2,07/20] btrfs-progs: stop accessing ->csum_root directly

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