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bcachefs: bch2_btree_bit_mod()

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Provide a non-write buffer version of bch2_btree_bit_mod_buffered(), for
the subvolume children btree.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-02-08 19:23:56 -05:00
parent 506b187603
commit e07c28ab92
2 changed files with 22 additions and 0 deletions
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21
fs/bcachefs/btree_update.c
View File

@ -785,6 +785,27 @@ int bch2_btree_delete_range(struct bch_fs *c, enum btree_id id,
return ret;
}
int bch2_btree_bit_mod(struct btree_trans *trans, enum btree_id btree,
struct bpos pos, bool set)
{
struct bkey_i *k = bch2_trans_kmalloc(trans, sizeof(*k));
int ret = PTR_ERR_OR_ZERO(k);
if (ret)
return ret;
bkey_init(&k->k);
k->k.type = set ? KEY_TYPE_set : KEY_TYPE_deleted;
k->k.p = pos;
struct btree_iter iter;
bch2_trans_iter_init(trans, &iter, btree, pos, BTREE_ITER_INTENT);
ret = bch2_btree_iter_traverse(&iter) ?:
bch2_trans_update(trans, &iter, k, 0);
bch2_trans_iter_exit(trans, &iter);
return ret;
}
int bch2_btree_bit_mod_buffered(struct btree_trans *trans, enum btree_id btree,
struct bpos pos, bool set)
{

1
fs/bcachefs/btree_update.h
View File

@ -62,6 +62,7 @@ int bch2_btree_delete_range_trans(struct btree_trans *, enum btree_id,
int bch2_btree_delete_range(struct bch_fs *, enum btree_id,
struct bpos, struct bpos, unsigned, u64 *);
int bch2_btree_bit_mod(struct btree_trans *, enum btree_id, struct bpos, bool);
int bch2_btree_bit_mod_buffered(struct btree_trans *, enum btree_id, struct bpos, bool);
static inline int bch2_btree_delete_at_buffered(struct btree_trans *trans,