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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2025-07-03 19:22:45 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-07-04 23:17:11 -0400 |
| commit | 6178f91b21692ab6898145704f695058e7960b91 (patch) | |
| tree | a8462ace7452d97223784b4e1482547211a67486 | |
| parent | ae6444bfc5626fc02cb987ae5528d7bbf72547d0 (diff) | |
bcachefs: Debug param for injecting btree node corruption on read
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | fs/bcachefs/btree_io.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/bcachefs/btree_io.c b/fs/bcachefs/btree_io.c index ab4c93025c67..b30799e494eb 100644 --- a/fs/bcachefs/btree_io.c +++ b/fs/bcachefs/btree_io.c @@ -26,6 +26,12 @@ #include <linux/sched/mm.h> +#ifdef CONFIG_BCACHEFS_DEBUG +static unsigned bch2_btree_read_corrupt_ratio; +module_param_named(btree_read_corrupt_ratio, bch2_btree_read_corrupt_ratio, uint, 0644); +MODULE_PARM_DESC(btree_read_corrupt_ratio, ""); +#endif + static void bch2_btree_node_header_to_text(struct printbuf *out, struct btree_node *bn) { bch2_btree_id_level_to_text(out, BTREE_NODE_ID(bn), BTREE_NODE_LEVEL(bn)); @@ -1437,6 +1443,11 @@ start: continue; } + memset(&bio->bi_iter, 0, sizeof(bio->bi_iter)); + bio->bi_iter.bi_size = btree_buf_bytes(b); + + bch2_maybe_corrupt_bio(bio, bch2_btree_read_corrupt_ratio); + ret = bch2_btree_node_read_done(c, ca, b, &failed, &buf); if (ret == -BCH_ERR_btree_node_read_err_want_retry || ret == -BCH_ERR_btree_node_read_err_must_retry) |