btrfs: Streamline shared ref check in alloc_reserved_tree_block
authorNikolay Borisov <nborisov@suse.com>
Mon, 21 May 2018 09:27:23 +0000 (12:27 +0300)
committerDavid Sterba <dsterba@suse.com>
Tue, 29 May 2018 16:12:57 +0000 (18:12 +0200)
commitd4b20733d203eea307986bd0502ba8d54afc2891
treeadd57f9abc7c662f8cf158698bf43bd40eeeb3af
parent21ebfbe7e06cafb05c41cc39b058be35acb6c5da
btrfs: Streamline shared ref check in alloc_reserved_tree_block

Instead of setting "parent" to ref->parent only when dealing with
a shared ref and subsequently performing another check to see
if (parent > 0), check the "node->type" directly and act accordingly.
This makes the code more streamline. No functional changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/extent-tree.c