diff options
Diffstat (limited to 'fs/btrfs/print-tree.c')
| -rw-r--r-- | fs/btrfs/print-tree.c | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c index fcae61e175f3..569205e651c7 100644 --- a/fs/btrfs/print-tree.c +++ b/fs/btrfs/print-tree.c @@ -44,7 +44,7 @@ static void print_dev_item(struct extent_buffer *eb, static void print_extent_data_ref(struct extent_buffer *eb, struct btrfs_extent_data_ref *ref) { - pr_info("\t\textent data backref root %llu objectid %llu offset %llu count %u\n", + pr_cont("extent data backref root %llu objectid %llu offset %llu count %u\n", btrfs_extent_data_ref_root(eb, ref), btrfs_extent_data_ref_objectid(eb, ref), btrfs_extent_data_ref_offset(eb, ref), @@ -63,6 +63,7 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type) u32 item_size = btrfs_item_size_nr(eb, slot); u64 flags; u64 offset; + int ref_index = 0; if (item_size < sizeof(*ei)) { #ifdef BTRFS_COMPAT_EXTENT_TREE_V0 @@ -104,12 +105,20 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type) iref = (struct btrfs_extent_inline_ref *)ptr; type = btrfs_extent_inline_ref_type(eb, iref); offset = btrfs_extent_inline_ref_offset(eb, iref); + pr_info("\t\tref#%d: ", ref_index++); switch (type) { case BTRFS_TREE_BLOCK_REF_KEY: - pr_info("\t\ttree block backref root %llu\n", offset); + pr_cont("tree block backref root %llu\n", offset); break; case BTRFS_SHARED_BLOCK_REF_KEY: - pr_info("\t\tshared block backref parent %llu\n", offset); + pr_cont("shared block backref parent %llu\n", offset); + /* + * offset is supposed to be a tree block which + * must be aligned to nodesize. + */ + if (!IS_ALIGNED(offset, eb->fs_info->nodesize)) + pr_info("\t\t\t(parent %llu is NOT ALIGNED to nodesize %llu)\n", + offset, (unsigned long long)eb->fs_info->nodesize); break; case BTRFS_EXTENT_DATA_REF_KEY: dref = (struct btrfs_extent_data_ref *)(&iref->offset); @@ -117,11 +126,20 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type) break; case BTRFS_SHARED_DATA_REF_KEY: sref = (struct btrfs_shared_data_ref *)(iref + 1); - pr_info("\t\tshared data backref parent %llu count %u\n", + pr_cont("shared data backref parent %llu count %u\n", offset, btrfs_shared_data_ref_count(eb, sref)); + /* + * offset is supposed to be a tree block which + * must be aligned to nodesize. + */ + if (!IS_ALIGNED(offset, eb->fs_info->nodesize)) + pr_info("\t\t\t(parent %llu is NOT ALIGNED to nodesize %llu)\n", + offset, (unsigned long long)eb->fs_info->nodesize); break; default: - BUG(); + pr_cont("(extent %llu has INVALID ref type %d)\n", + eb->start, type); + return; } ptr += btrfs_extent_inline_ref_size(type); } @@ -161,8 +179,9 @@ static void print_uuid_item(struct extent_buffer *l, unsigned long offset, } } -void btrfs_print_leaf(struct btrfs_fs_info *fs_info, struct extent_buffer *l) +void btrfs_print_leaf(struct extent_buffer *l) { + struct btrfs_fs_info *fs_info; int i; u32 type, nr; struct btrfs_item *item; @@ -180,6 +199,7 @@ void btrfs_print_leaf(struct btrfs_fs_info *fs_info, struct extent_buffer *l) if (!l) return; + fs_info = l->fs_info; nr = btrfs_header_nritems(l); btrfs_info(fs_info, "leaf %llu total ptrs %d free space %d", @@ -318,18 +338,20 @@ void btrfs_print_leaf(struct btrfs_fs_info *fs_info, struct extent_buffer *l) } } -void btrfs_print_tree(struct btrfs_fs_info *fs_info, struct extent_buffer *c) +void btrfs_print_tree(struct extent_buffer *c) { + struct btrfs_fs_info *fs_info; int i; u32 nr; struct btrfs_key key; int level; if (!c) return; + fs_info = c->fs_info; nr = btrfs_header_nritems(c); level = btrfs_header_level(c); if (level == 0) { - btrfs_print_leaf(fs_info, c); + btrfs_print_leaf(c); return; } btrfs_info(fs_info, @@ -359,7 +381,7 @@ void btrfs_print_tree(struct btrfs_fs_info *fs_info, struct extent_buffer *c) if (btrfs_header_level(next) != level - 1) BUG(); - btrfs_print_tree(fs_info, next); + btrfs_print_tree(next); free_extent_buffer(next); } } |