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btrfs: eliminate total_size parameter from setup_items_for_insert

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The value of this argument can be derived from the total_data as it's
simply the value of the data size + size of btrfs_items being touched.
Move the parameter calculation inside the function. This results in a
simpler interface and also a minor size reduction:

./scripts/bloat-o-meter ctree.original fs/btrfs/ctree.o
add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-34 (-34)
Function                                     old     new   delta
btrfs_duplicate_item                         260     259      -1
setup_items_for_insert                      1200    1190     -10
btrfs_insert_empty_items                     177     154     -23

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
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>
This commit is contained in:
Nikolay Borisov
2020-09-01 17:39:58 +03:00
committed by David Sterba
parent fc0716c2f6
commit 3dc9dc8969
6 changed files with 11 additions and 19 deletions
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3
fs/btrfs/tests/extent-buffer-tests.c
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@@ -60,8 +60,7 @@ static int test_btrfs_split_item(u32 sectorsize, u32 nodesize)
key.type = BTRFS_EXTENT_CSUM_KEY;
key.offset = 0;
setup_items_for_insert(root, path, &key, &value_len, value_len,
value_len + sizeof(struct btrfs_item), 1);
setup_items_for_insert(root, path, &key, &value_len, value_len, 1);
item = btrfs_item_nr(0);
write_extent_buffer(eb, value, btrfs_item_ptr_offset(eb, 0),
value_len);