From: Zhao Lei <[email protected]> num_copies's value is not changed in this function, and it is not necessary to calculate its value multi-times.
Signed-off-by: Zhao Lei <[email protected]> Signed-off-by: Miao Xie <[email protected]> --- fs/btrfs/disk-io.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 11d0ad3..79d9196 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -301,7 +301,8 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root, { struct extent_io_tree *io_tree; int ret; - int num_copies = 0; + int num_copies = btrfs_num_copies(&root->fs_info->mapping_tree, + eb->start, eb->len); int mirror_num = 0; io_tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree; @@ -312,8 +313,6 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root, !verify_parent_transid(io_tree, eb, parent_transid)) return ret; - num_copies = btrfs_num_copies(&root->fs_info->mapping_tree, - eb->start, eb->len); if (num_copies == 1) return ret; -- 1.6.5.2 -- 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
