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bcachefs: bch2_btree_node_header_to_text()

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better btree node read path error messages

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-04-10 14:41:17 -04:00
parent 7423330e30
commit 9089376f70
1 changed files with 20 additions and 7 deletions
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27
fs/bcachefs/btree_io.c
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@ -23,6 +23,18 @@
#include <linux/sched/mm.h>
static void bch2_btree_node_header_to_text(struct printbuf *out, struct btree_node *bn)
{
prt_printf(out, "btree=%s l=%u seq %llux\n",
bch2_btree_id_str(BTREE_NODE_ID(bn)),
(unsigned) BTREE_NODE_LEVEL(bn), bn->keys.seq);
prt_str(out, "min: ");
bch2_bpos_to_text(out, bn->min_key);
prt_newline(out);
prt_str(out, "max: ");
bch2_bpos_to_text(out, bn->max_key);
}
void bch2_btree_node_io_unlock(struct btree *b)
{
EBUG_ON(!btree_node_write_in_flight(b));
@ -1021,18 +1033,19 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
-BCH_ERR_btree_node_read_err_must_retry,
c, ca, b, NULL,
btree_node_bad_seq,
"got wrong btree node (want %llx got %llx)\n"
"got btree %s level %llu pos %s",
bp->seq, b->data->keys.seq,
bch2_btree_id_str(BTREE_NODE_ID(b->data)),
BTREE_NODE_LEVEL(b->data),
buf.buf);
"got wrong btree node: got\n%s",
(printbuf_reset(&buf),
bch2_btree_node_header_to_text(&buf, b->data),
buf.buf));
} else {
btree_err_on(!b->data->keys.seq,
-BCH_ERR_btree_node_read_err_must_retry,
c, ca, b, NULL,
btree_node_bad_seq,
"bad btree header: seq 0");
"bad btree header: seq 0\n%s",
(printbuf_reset(&buf),
bch2_btree_node_header_to_text(&buf, b->data),
buf.buf));
}
while (b->written < (ptr_written ?: btree_sectors(c))) {