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| author | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2016-09-22 14:11:34 -0500 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-09-26 19:37:06 +0200 |
| commit | 0f5053eb90f58c619885eac2757ccdc5eccd9046 (patch) | |
| tree | d7ee8a7490f17d5c1ed18f680a4abbc96d69b978 /fs/btrfs | |
| parent | 6cea66e5447caff77d4a3a61295a5d922b97cb4a (diff) | |
| download | blackbird-op-linux-0f5053eb90f58c619885eac2757ccdc5eccd9046.tar.gz blackbird-op-linux-0f5053eb90f58c619885eac2757ccdc5eccd9046.zip | |
btrfs: parent_start initialization cleanup
Code cleanup. parent_start is initialized multiple times when it is
not necessary to do so.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ctree.c | 18 |
1 files changed, 3 insertions, 15 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 0c910b1cb2f8..284cc9d6ecd7 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1100,7 +1100,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, int level, ret; int last_ref = 0; int unlock_orig = 0; - u64 parent_start; + u64 parent_start = 0; if (*cow_ret == buf) unlock_orig = 1; @@ -1119,13 +1119,8 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, else btrfs_node_key(buf, &disk_key, 0); - if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) { - if (parent) - parent_start = parent->start; - else - parent_start = 0; - } else - parent_start = 0; + if ((root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) && parent) + parent_start = parent->start; cow = btrfs_alloc_tree_block(trans, root, parent_start, root->root_key.objectid, &disk_key, level, @@ -1168,8 +1163,6 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID || btrfs_header_backref_rev(buf) < BTRFS_MIXED_BACKREF_REV) parent_start = buf->start; - else - parent_start = 0; extent_buffer_get(cow); tree_mod_log_set_root_pointer(root, cow, 1); @@ -1180,11 +1173,6 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, free_extent_buffer(buf); add_root_to_dirty_list(root); } else { - if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) - parent_start = parent->start; - else - parent_start = 0; - WARN_ON(trans->transid != btrfs_header_generation(parent)); tree_mod_log_insert_key(root->fs_info, parent, parent_slot, MOD_LOG_KEY_REPLACE, GFP_NOFS); |
