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authorNikolay Borisov <nborisov@suse.com>2020-05-27 13:10:59 +0300
committerDavid Sterba <dsterba@suse.com>2020-05-28 14:01:52 +0200
commit213ff4b72a9c7509dd85979db64c66774f4f26c1 (patch)
tree5c7ee0f056b146410f73e44d46008a9b8d355960 /fs/btrfs
parent995e9a166b6909c9bb4af8f51b9502f8b8c18291 (diff)
downloadlinux-213ff4b72a9c7509dd85979db64c66774f4f26c1.tar.bz2
btrfs: remove redundant local variable in read_block_for_search
The local 'b' variable is only used to directly read values from passed extent buffer. So eliminate it and directly use the input parameter. Furthermore this shrinks the size of the following functions: ./scripts/bloat-o-meter ctree.orig fs/btrfs/ctree.o add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-73 (-73) Function old new delta read_block_for_search.isra 876 871 -5 push_node_left 1112 1044 -68 Total: Before=50348, After=50275, chg -0.14% Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Nikolay Borisov <nborisov@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.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 5f94414f3336..3a7648bff42c 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2335,16 +2335,15 @@ read_block_for_search(struct btrfs_root *root, struct btrfs_path *p,
struct btrfs_fs_info *fs_info = root->fs_info;
u64 blocknr;
u64 gen;
- struct extent_buffer *b = *eb_ret;
struct extent_buffer *tmp;
struct btrfs_key first_key;
int ret;
int parent_level;
- blocknr = btrfs_node_blockptr(b, slot);
- gen = btrfs_node_ptr_generation(b, slot);
- parent_level = btrfs_header_level(b);
- btrfs_node_key_to_cpu(b, &first_key, slot);
+ blocknr = btrfs_node_blockptr(*eb_ret, slot);
+ gen = btrfs_node_ptr_generation(*eb_ret, slot);
+ parent_level = btrfs_header_level(*eb_ret);
+ btrfs_node_key_to_cpu(*eb_ret, &first_key, slot);
tmp = find_extent_buffer(fs_info, blocknr);
if (tmp) {