iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

bcachefs: Better iterator picking

Browse Source 
Avoid cloning iterators if we don't have to.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2021-04-14 13:29:34 -04:00 committed by Kent Overstreet
parent d44a6e350e
commit a0c9cc1727
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
fs/bcachefs/btree_iter.c
View File

@ -2017,10 +2017,14 @@ struct btree_iter *__bch2_trans_get_iter(struct btree_trans *trans,
if (iter->btree_id != btree_id)
continue;
if (best &&
bkey_cmp(bpos_diff(best->real_pos, pos),
bpos_diff(iter->real_pos, pos)) < 0)
continue;
if (best) {
int cmp = bkey_cmp(bpos_diff(best->real_pos, pos),
bpos_diff(iter->real_pos, pos));
if (cmp < 0 ||
((cmp == 0 && btree_iter_keep(trans, iter))))
continue;
}
best = iter;
}