The v0 extent type checks are the right case for the unlikely annotations as we don't expect to ever see them, so let's give the compiler some hint.
Signed-off-by: David Sterba <[email protected]> --- fs/btrfs/extent-tree.c | 8 ++++---- fs/btrfs/print-tree.c | 2 +- fs/btrfs/relocation.c | 8 ++++---- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 8713a1693dfc..d3f7afe3a548 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -1310,7 +1310,7 @@ static noinline int remove_extent_data_ref(struct btrfs_trans_handle *trans, ref2 = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_shared_data_ref); num_refs = btrfs_shared_data_ref_count(leaf, ref2); - } else if (key.type == BTRFS_EXTENT_REF_V0_KEY) { + } else if (unlikely(key.type == BTRFS_EXTENT_REF_V0_KEY)) { btrfs_print_v0_err(fs_info); btrfs_abort_transaction(trans, -EINVAL); return -EINVAL; @@ -1563,7 +1563,7 @@ int lookup_inline_extent_backref(struct btrfs_trans_handle *trans, leaf = path->nodes[0]; item_size = btrfs_item_size_nr(leaf, path->slots[0]); - if (item_size < sizeof(*ei)) { + if (unlikely(item_size < sizeof(*ei))) { err = -EINVAL; btrfs_print_v0_err(fs_info); btrfs_abort_transaction(trans, err); @@ -2269,7 +2269,7 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans, leaf = path->nodes[0]; item_size = btrfs_item_size_nr(leaf, path->slots[0]); - if (item_size < sizeof(*ei)) { + if (unlikely(item_size < sizeof(*ei))) { err = -EINVAL; btrfs_print_v0_err(fs_info); btrfs_abort_transaction(trans, err); @@ -6811,7 +6811,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, leaf = path->nodes[0]; item_size = btrfs_item_size_nr(leaf, extent_slot); - if (item_size < sizeof(*ei)) { + if (unlikely(item_size < sizeof(*ei))) { ret = -EINVAL; btrfs_print_v0_err(info); btrfs_abort_transaction(trans, ret); diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c index 772560eecfa6..0dd44d161935 100644 --- a/fs/btrfs/print-tree.c +++ b/fs/btrfs/print-tree.c @@ -52,7 +52,7 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type) u64 offset; int ref_index = 0; - if (item_size < sizeof(*ei)) { + if (unlikely(item_size < sizeof(*ei))) { btrfs_print_v0_err(eb->fs_info); btrfs_handle_fs_error(eb->fs_info, -EINVAL, NULL); } diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index a8dddefaae99..381bd3c24249 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -832,7 +832,7 @@ struct backref_node *build_backref_tree(struct reloc_control *rc, goto next; } else if (key.type != BTRFS_TREE_BLOCK_REF_KEY) { goto next; - } else if (key.type == BTRFS_EXTENT_REF_V0_KEY) { + } else if (unlikely(key.type == BTRFS_EXTENT_REF_V0_KEY)) { err = -EINVAL; btrfs_print_v0_err(rc->extent_root->fs_info); btrfs_handle_fs_error(rc->extent_root->fs_info, err, @@ -3325,7 +3325,7 @@ static int add_tree_block(struct reloc_control *rc, level = (int)extent_key->offset; } generation = btrfs_extent_generation(eb, ei); - } else if (item_size == sizeof(struct btrfs_extent_item_v0)) { + } else if (unlikely(item_size == sizeof(struct btrfs_extent_item_v0))) { btrfs_print_v0_err(eb->fs_info); btrfs_handle_fs_error(eb->fs_info, -EINVAL, NULL); return -EINVAL; @@ -3742,7 +3742,7 @@ int add_data_references(struct reloc_control *rc, struct btrfs_extent_data_ref); ret = find_data_references(rc, extent_key, eb, dref, blocks); - } else if (key.type == BTRFS_EXTENT_REF_V0_KEY) { + } else if (unlikely(key.type == BTRFS_EXTENT_REF_V0_KEY)) { btrfs_print_v0_err(eb->fs_info); btrfs_handle_fs_error(eb->fs_info, -EINVAL, NULL); ret = -EINVAL; @@ -3984,7 +3984,7 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc) flags = btrfs_extent_flags(path->nodes[0], ei); ret = check_extent_flags(flags); BUG_ON(ret); - } else if (item_size == sizeof(struct btrfs_extent_item_v0)) { + } else if (unlikely(item_size == sizeof(struct btrfs_extent_item_v0))) { err = -EINVAL; btrfs_print_v0_err(trans->fs_info); btrfs_abort_transaction(trans, err); -- 2.17.0 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
