diff options
| author | Kent Overstreet <kent.overstreet@gmail.com> | 2019-11-09 19:02:48 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:08:32 -0400 |
| commit | 085ab69357e091613625f1505d667b6a5a3ec881 (patch) | |
| tree | df5f4d2d258b9bade329e662464a6a3139a7f384 /fs/bcachefs/move.c | |
| parent | ad44bdc351faeacb9b7294f1689ac76babf379ad (diff) | |
bcachefs: Rework of cut_front & cut_back
This changes bch2_cut_front and bch2_cut_back so that they're able to
shorten the size of the value, and it also changes the extent update
path to update the accounting in the btree node when this happens.
When the size of the value is shortened, they zero out the space that's
no longer used, so it's interpreted as noops (as implemented in the last
patch).
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/move.c')
| -rw-r--r-- | fs/bcachefs/move.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/bcachefs/move.c b/fs/bcachefs/move.c index dbe35d16e7dd..5fd44dbe2722 100644 --- a/fs/bcachefs/move.c +++ b/fs/bcachefs/move.c @@ -96,10 +96,11 @@ static int bch2_migrate_index_update(struct bch_write_op *op) bkey_copy(&_new.k, bch2_keylist_front(keys)); new = bkey_i_to_extent(&_new.k); + bch2_cut_front(iter->pos, &new->k_i); - bch2_cut_front(iter->pos, insert); - bch2_cut_back(new->k.p, &insert->k); - bch2_cut_back(insert->k.p, &new->k); + bch2_cut_front(iter->pos, insert); + bch2_cut_back(new->k.p, insert); + bch2_cut_back(insert->k.p, &new->k_i); if (m->data_cmd == DATA_REWRITE) bch2_bkey_drop_device(bkey_i_to_s(insert), @@ -168,8 +169,6 @@ next: if (bch2_keylist_empty(keys)) goto out; } - - bch2_cut_front(iter->pos, bch2_keylist_front(keys)); continue; nomatch: if (m->ctxt) |