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bcachefs: Add an error message for insufficient rw journal devs

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This causes us to go read-only - need an error message saying why.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-07-15 16:30:44 -04:00
parent ee1b8dc17a
commit f12410bb7d
1 changed files with 11 additions and 0 deletions
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11
fs/bcachefs/journal_reclaim.c
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@ -205,6 +205,17 @@ void bch2_journal_space_available(struct journal *j)
j->can_discard = can_discard;
if (nr_online < metadata_replicas_required(c)) {
struct printbuf buf = PRINTBUF;
prt_printf(&buf, "insufficient writeable journal devices available: have %u, need %u\n"
"rw journal devs:", nr_online, metadata_replicas_required(c));
rcu_read_lock();
for_each_member_device_rcu(c, ca, &c->rw_devs[BCH_DATA_journal])
prt_printf(&buf, " %s", ca->name);
rcu_read_unlock();
bch_err(c, "%s", buf.buf);
printbuf_exit(&buf);
ret = JOURNAL_ERR_insufficient_devices;
goto out;
}