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bcachefs: Fix failure to allocate journal write on discard retry

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When allocating a journal write fails, then retries after doing
discards, we were failing to count already allocated replicas.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-12-04 18:16:25 -05:00
parent 6728f8f829
commit 49833ce27e
1 changed files with 9 additions and 0 deletions
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9
fs/bcachefs/journal_io.c
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@ -1498,6 +1498,15 @@ static int journal_write_alloc(struct journal *j, struct journal_buf *w)
READ_ONCE(c->opts.metadata_replicas_required));
rcu_read_lock();
/* We might run more than once if we have to stop and do discards: */
struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(bkey_i_to_s_c(&w->key));
bkey_for_each_ptr(ptrs, p) {
struct bch_dev *ca = bch2_dev_rcu_noerror(c, p->dev);
if (ca)
replicas += ca->mi.durability;
}
retry:
devs = target_rw_devs(c, BCH_DATA_journal, target);