Update bcachefs sources to 656fe6ab62bd bcachefs: kill silly gcc warning

.bcachefs_revision

@@ -1 +1 @@
-92092a7729703f2285902b56aacaae199a3517eb
+656fe6ab62bd41321e90e1567e6bf9c3ea058633

libbcachefs/btree/read.c

@@ -95,21 +95,10 @@ void bch2_btree_node_wait_on_write(struct btree *b)
 		       TASK_UNINTERRUPTIBLE);
 }
 
-static void btree_err_msg(struct printbuf *out, struct bch_fs *c,
-			  struct bch_dev *ca,
-			  bool print_pos,
+static void btree_err_msg(struct printbuf *out, struct bch_fs *c, struct bch_dev *ca,
 			  struct btree *b, struct bset *i, struct bkey_packed *k,
-			  unsigned offset, int rw)
+			  const char *fmt, va_list args)
 {
-	if (print_pos) {
-		prt_str(out, rw == READ
-			? "error validating btree node "
-			: "corrupt btree node before write ");
-		prt_printf(out, "at btree ");
-		bch2_btree_pos_to_text(out, c, b);
-		prt_newline(out);
-	}
-
 	if (ca)
 		prt_printf(out, "%s ", ca->name);
 
@@ -122,10 +111,13 @@ static void btree_err_msg(struct printbuf *out, struct bch_fs *c,
 			   (unsigned long)(void *)k -
 			   ((unsigned long)(void *)i & ~511UL));
 	prt_str(out, ": ");
+
+	prt_vprintf(out, fmt, args);
+	prt_newline(out);
 }
 
 __printf(11, 12)
-static int __btree_err(int ret,
+static int __btree_err(enum bch_fsck_flags flags,
 		       struct bch_fs *c,
 		       struct bch_dev *ca,
 		       struct btree *b,
@@ -138,99 +130,47 @@ static int __btree_err(int ret,
 		       const char *fmt, ...)
 {
 	if (c->recovery.curr_pass == BCH_RECOVERY_PASS_scan_for_btree_nodes)
-		return ret == -BCH_ERR_btree_node_read_err_fixable
+		return flags & FSCK_CAN_FIX
 			? bch_err_throw(c, fsck_fix)
-			: ret;
+			: bch_err_throw(c, btree_node_validate_err);
 
-	bool have_retry = false;
-	int ret2;
+	bch2_sb_error_count(c, err_type);
+
+	if (rw == READ) {
+		va_list args;
+		va_start(args, fmt);
+		btree_err_msg(err_msg, c, ca, b, i, k, fmt, args);
+		va_end(args);
 
-	if (ca) {
 		bch2_dev_io_failures_mut(failed, ca->dev_idx)->errcode =
 			bch_err_throw(c, btree_node_validate_err);
 
 		struct extent_ptr_decoded pick;
-		have_retry = bch2_bkey_pick_read_device(c,
+		bool have_retry = bch2_bkey_pick_read_device(c,
 					bkey_i_to_s_c(&b->key),
 					failed, &pick, -1) == 1;
+
+		return !have_retry &&
+			(flags & FSCK_CAN_FIX) &&
+			bch2_fsck_err_opt(c, FSCK_CAN_FIX, err_type) == -BCH_ERR_fsck_fix
+			? bch_err_throw(c, fsck_fix)
+			: bch_err_throw(c, btree_node_validate_err);
+	} else {
+		CLASS(bch_log_msg, msg)(c);
+
+		prt_str(&msg.m, "corrupt btree node before write at btree ");
+		bch2_btree_pos_to_text(&msg.m, c, b);
+		prt_newline(&msg.m);
+
+		va_list args;
+		va_start(args, fmt);
+		btree_err_msg(&msg.m, c, NULL, b, i, k, fmt, args);
+		va_end(args);
+
+		bch2_fs_emergency_read_only2(c, &msg.m);
+
+		return bch_err_throw(c, fsck_errors_not_fixed);
 	}
-
-	if (!have_retry && ret == -BCH_ERR_btree_node_read_err_want_retry)
-		ret = bch_err_throw(c, btree_node_read_err_fixable);
-	if (!have_retry && ret == -BCH_ERR_btree_node_read_err_must_retry)
-		ret = bch_err_throw(c, btree_node_read_err_bad_node);
-
-	bch2_sb_error_count(c, err_type);
-
-	bool print_deferred = err_msg &&
-		rw == READ &&
-		!(test_bit(BCH_FS_in_fsck, &c->flags) &&
-		  c->opts.fix_errors == FSCK_FIX_ask);
-
-	CLASS(printbuf, out)();
-	bch2_log_msg_start(c, &out);
-
-	if (!print_deferred)
-		err_msg = &out;
-
-	btree_err_msg(err_msg, c, ca, !print_deferred, b, i, k, b->written, rw);
-
-	va_list args;
-	va_start(args, fmt);
-	prt_vprintf(err_msg, fmt, args);
-	va_end(args);
-
-	if (print_deferred) {
-		prt_newline(err_msg);
-
-		switch (ret) {
-		case -BCH_ERR_btree_node_read_err_fixable:
-			ret2 = bch2_fsck_err_opt(c, FSCK_CAN_FIX, err_type);
-			if (!bch2_err_matches(ret2, BCH_ERR_fsck_fix) &&
-			    !bch2_err_matches(ret2, BCH_ERR_fsck_ignore)) {
-				ret = ret2;
-				goto fsck_err;
-			}
-
-			if (!have_retry)
-				ret = bch_err_throw(c, fsck_fix);
-			return ret;
-		case -BCH_ERR_btree_node_read_err_bad_node:
-			prt_str(&out, ", ");
-			break;
-		}
-
-		return ret;
-	}
-
-	if (rw == WRITE) {
-		prt_str(&out, ", ");
-		ret = __bch2_inconsistent_error(c, &out)
-			? -BCH_ERR_fsck_errors_not_fixed
-			: 0;
-		goto print;
-	}
-
-	switch (ret) {
-	case -BCH_ERR_btree_node_read_err_fixable:
-		ret2 = __bch2_fsck_err(c, NULL, FSCK_CAN_FIX, err_type, "%s", out.buf);
-		if (!bch2_err_matches(ret2, BCH_ERR_fsck_fix) &&
-		    !bch2_err_matches(ret2, BCH_ERR_fsck_ignore)) {
-			ret = ret2;
-			goto fsck_err;
-		}
-
-		if (!have_retry)
-			ret = bch_err_throw(c, fsck_fix);
-		return ret;
-	case -BCH_ERR_btree_node_read_err_bad_node:
-		prt_str(&out, ", ");
-		break;
-	}
-print:
-	bch2_print_str(c, KERN_ERR, out.buf);
-fsck_err:
-	return ret;
 }
 
 #define btree_err(type, c, ca, b, i, k, _err_type, msg, ...)		\
@@ -313,7 +253,7 @@ int bch2_validate_bset(struct bch_fs *c, struct bch_dev *ca,
 	int ret = 0;
 
 	btree_err_on(!bch2_version_compatible(version),
-		     -BCH_ERR_btree_node_read_err_incompatible,
+		     0,
 		     c, ca, b, i, NULL,
 		     btree_node_unsupported_version,
 		     "unsupported bset version %u.%u",
@@ -322,8 +262,8 @@ int bch2_validate_bset(struct bch_fs *c, struct bch_dev *ca,
 
 	if (c->recovery.curr_pass != BCH_RECOVERY_PASS_scan_for_btree_nodes &&
 	    btree_err_on(version < c->sb.version_min,
-			 -BCH_ERR_btree_node_read_err_fixable,
-			 c, NULL, b, i, NULL,
+			 FSCK_CAN_FIX,
+			 c, ca, b, i, NULL,
 			 btree_node_bset_older_than_sb_min,
 			 "bset version %u older than superblock version_min %u",
 			 version, c->sb.version_min)) {
@@ -339,8 +279,8 @@ int bch2_validate_bset(struct bch_fs *c, struct bch_dev *ca,
 
 	if (btree_err_on(BCH_VERSION_MAJOR(version) >
 			 BCH_VERSION_MAJOR(c->sb.version),
-			 -BCH_ERR_btree_node_read_err_fixable,
-			 c, NULL, b, i, NULL,
+			 FSCK_CAN_FIX,
+			 c, ca, b, i, NULL,
 			 btree_node_bset_newer_than_sb,
 			 "bset version %u newer than superblock version %u",
 			 version, c->sb.version)) {
@@ -350,19 +290,19 @@ int bch2_validate_bset(struct bch_fs *c, struct bch_dev *ca,
 	}
 
 	btree_err_on(BSET_SEPARATE_WHITEOUTS(i),
-		     -BCH_ERR_btree_node_read_err_incompatible,
+		     0,
 		     c, ca, b, i, NULL,
 		     btree_node_unsupported_version,
 		     "BSET_SEPARATE_WHITEOUTS no longer supported");
 
 	btree_err_on(offset && !i->u64s,
-		     -BCH_ERR_btree_node_read_err_fixable,
+		     FSCK_CAN_FIX,
 		     c, ca, b, i, NULL,
 		     bset_empty,
 		     "empty bset");
 
 	btree_err_on(BSET_OFFSET(i) && BSET_OFFSET(i) != offset,
-		     -BCH_ERR_btree_node_read_err_want_retry,
+		     FSCK_CAN_FIX,
 		     c, ca, b, i, NULL,
 		     bset_wrong_sector_offset,
 		     "bset at wrong sector offset");
@@ -378,20 +318,20 @@ int bch2_validate_bset(struct bch_fs *c, struct bch_dev *ca,
 
 			/* XXX endianness */
 			btree_err_on(bp->seq != bn->keys.seq,
-				     -BCH_ERR_btree_node_read_err_must_retry,
+				     0,
 				     c, ca, b, NULL, NULL,
 				     bset_bad_seq,
 				     "incorrect sequence number (wrong btree node)");
 		}
 
 		btree_err_on(BTREE_NODE_ID(bn) != b->c.btree_id,
-			     -BCH_ERR_btree_node_read_err_must_retry,
+			     0,
 			     c, ca, b, i, NULL,
 			     btree_node_bad_btree,
 			     "incorrect btree id");
 
 		btree_err_on(BTREE_NODE_LEVEL(bn) != b->c.level,
-			     -BCH_ERR_btree_node_read_err_must_retry,
+			     0,
 			     c, ca, b, i, NULL,
 			     btree_node_bad_level,
 			     "incorrect level");
@@ -410,7 +350,7 @@ int bch2_validate_bset(struct bch_fs *c, struct bch_dev *ca,
 			}
 
 			btree_err_on(!bpos_eq(b->data->min_key, bp->min_key),
-				     -BCH_ERR_btree_node_read_err_must_retry,
+				     0,
 				     c, ca, b, NULL, NULL,
 				     btree_node_bad_min_key,
 				     "incorrect min_key: got %s should be %s",
@@ -421,7 +361,7 @@ int bch2_validate_bset(struct bch_fs *c, struct bch_dev *ca,
 		}
 
 		btree_err_on(!bpos_eq(bn->max_key, b->key.k.p),
-			     -BCH_ERR_btree_node_read_err_must_retry,
+			     0,
 			     c, ca, b, i, NULL,
 			     btree_node_bad_max_key,
 			     "incorrect max key %s",
@@ -433,7 +373,7 @@ int bch2_validate_bset(struct bch_fs *c, struct bch_dev *ca,
 					  BSET_BIG_ENDIAN(i), write, bn);
 
 		btree_err_on(bch2_bkey_format_invalid(c, &bn->format, write, &buf1),
-			     -BCH_ERR_btree_node_read_err_bad_node,
+			     0,
 			     c, ca, b, i, NULL,
 			     btree_node_bad_format,
 			     "invalid bkey format: %s\n%s", buf1.buf,
@@ -508,7 +448,9 @@ static inline int btree_node_read_bkey_cmp(const struct btree *b,
 		?: (int) bkey_deleted(r) - (int) bkey_deleted(l);
 }
 
-int bch2_validate_bset_keys(struct bch_fs *c, struct btree *b,
+int bch2_validate_bset_keys(struct bch_fs *c,
+			    struct bch_dev *ca,
+			    struct btree *b,
 			    struct bset *i, int write,
 			    struct bch_io_failures *failed,
 			    struct printbuf *err_msg)
@@ -527,8 +469,8 @@ int bch2_validate_bset_keys(struct bch_fs *c, struct btree *b,
 		unsigned next_good_key;
 
 		if (btree_err_on(bkey_p_next(k) > vstruct_last(i),
-				 -BCH_ERR_btree_node_read_err_fixable,
-				 c, NULL, b, i, k,
+				 FSCK_CAN_FIX,
+				 c, ca, b, i, k,
 				 btree_node_bkey_past_bset_end,
 				 "key extends past end of bset")) {
 			i->u64s = cpu_to_le16((u64 *) k - i->_data);
@@ -536,15 +478,15 @@ int bch2_validate_bset_keys(struct bch_fs *c, struct btree *b,
 		}
 
 		if (btree_err_on(k->format > KEY_FORMAT_CURRENT,
-				 -BCH_ERR_btree_node_read_err_fixable,
-				 c, NULL, b, i, k,
+				 FSCK_CAN_FIX,
+				 c, ca, b, i, k,
 				 btree_node_bkey_bad_format,
 				 "invalid bkey format %u", k->format))
 			goto drop_this_key;
 
 		if (btree_err_on(!bkeyp_u64s_valid(&b->format, k),
-				 -BCH_ERR_btree_node_read_err_fixable,
-				 c, NULL, b, i, k,
+				 FSCK_CAN_FIX,
+				 c, ca, b, i, k,
 				 btree_node_bkey_bad_u64s,
 				 "bad k->u64s %u (min %u max %zu)", k->u64s,
 				 bkeyp_key_u64s(&b->format, k),
@@ -578,8 +520,8 @@ int bch2_validate_bset_keys(struct bch_fs *c, struct btree *b,
 			prt_printf(&buf, " > ");
 			bch2_bkey_to_text(&buf, u.k);
 
-			if (btree_err(-BCH_ERR_btree_node_read_err_fixable,
-				      c, NULL, b, i, k,
+			if (btree_err(FSCK_CAN_FIX,
+				      c, ca, b, i, k,
 				      btree_node_bkey_out_of_order,
 				      "%s", buf.buf))
 				goto drop_this_key;
@@ -665,13 +607,13 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 	sort_iter_init(iter, b, (btree_blocks(c) + 1) * 2);
 
 	if (bch2_meta_read_fault("btree"))
-		btree_err(-BCH_ERR_btree_node_read_err_must_retry,
+		btree_err(0,
 			  c, ca, b, NULL, NULL,
 			  btree_node_fault_injected,
 			  "dynamic fault");
 
 	btree_err_on(le64_to_cpu(b->data->magic) != bset_magic(c),
-		     -BCH_ERR_btree_node_read_err_must_retry,
+		     0,
 		     c, ca, b, NULL, NULL,
 		     btree_node_bad_magic,
 		     "bad magic: want %llx, got %llx",
@@ -697,8 +639,8 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 
 		btree_err_on(!good_csum_type,
 			     bch2_csum_type_is_encryption(BSET_CSUM_TYPE(i))
-			     ? -BCH_ERR_btree_node_read_err_must_retry
-			     : -BCH_ERR_btree_node_read_err_want_retry,
+			     ? 0
+			     : FSCK_CAN_FIX,
 			     c, ca, b, i, NULL,
 			     bset_unknown_csum,
 			     "unknown checksum type %llu", BSET_CSUM_TYPE(i));
@@ -706,7 +648,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 		if (first) {
 			sectors = vstruct_sectors(b->data, c->block_bits);
 			if (btree_err_on(b->written + sectors > (ptr_written ?: btree_sectors(c)),
-					 -BCH_ERR_btree_node_read_err_fixable,
+					 FSCK_CAN_FIX,
 					 c, ca, b, i, NULL,
 					 bset_past_end_of_btree_node,
 					 "bset past end of btree node (offset %u len %u but written %zu)",
@@ -719,7 +661,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 					bch2_io_error(ca, BCH_MEMBER_ERROR_checksum);
 
 				btree_err_on(csum_bad,
-					     -BCH_ERR_btree_node_read_err_want_retry,
+					     FSCK_CAN_FIX,
 					     c, ca, b, i, NULL,
 					     bset_bad_csum,
 					     "%s",
@@ -742,7 +684,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 				bch2_bpos_to_text(&buf, b->data->max_key);
 
 				btree_err_on(b->data->keys.seq != bp->seq,
-					     -BCH_ERR_btree_node_read_err_must_retry,
+					     0,
 					     c, ca, b, NULL, NULL,
 					     btree_node_bad_seq,
 					     "got wrong btree node: got\n%s",
@@ -752,7 +694,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 					      buf.buf));
 			} else {
 				btree_err_on(!b->data->keys.seq,
-					     -BCH_ERR_btree_node_read_err_must_retry,
+					     0,
 					     c, ca, b, NULL, NULL,
 					     btree_node_bad_seq,
 					     "bad btree header: seq 0\n%s",
@@ -763,14 +705,14 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 
 			btree_err_on(btree_node_type_is_extents(btree_node_type(b)) &&
 				     !BTREE_NODE_NEW_EXTENT_OVERWRITE(b->data),
-				     -BCH_ERR_btree_node_read_err_incompatible,
-				     c, NULL, b, NULL, NULL,
+				     0,
+				     c, ca, b, NULL, NULL,
 				     btree_node_unsupported_version,
 				     "btree node does not have NEW_EXTENT_OVERWRITE set");
 		} else {
 			sectors = vstruct_sectors(bne, c->block_bits);
 			if (btree_err_on(b->written + sectors > (ptr_written ?: btree_sectors(c)),
-					 -BCH_ERR_btree_node_read_err_fixable,
+					 FSCK_CAN_FIX,
 					 c, ca, b, i, NULL,
 					 bset_past_end_of_btree_node,
 					 "bset past end of btree node (offset %u len %u but written %zu)",
@@ -783,7 +725,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 					bch2_io_error(ca, BCH_MEMBER_ERROR_checksum);
 
 				btree_err_on(csum_bad,
-					     -BCH_ERR_btree_node_read_err_want_retry,
+					     FSCK_CAN_FIX,
 					     c, ca, b, i, NULL,
 					     bset_bad_csum,
 					     "%s",
@@ -808,7 +750,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 		if (!b->written)
 			btree_node_set_format(b, b->data->format);
 
-		ret = bch2_validate_bset_keys(c, b, i, READ, failed, err_msg);
+		ret = bch2_validate_bset_keys(c, ca, b, i, READ, failed, err_msg);
 		if (ret)
 			goto fsck_err;
 
@@ -819,14 +761,14 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 					true);
 
 		btree_err_on(blacklisted && first,
-			     -BCH_ERR_btree_node_read_err_fixable,
+			     FSCK_CAN_FIX,
 			     c, ca, b, i, NULL,
 			     bset_blacklisted_journal_seq,
 			     "first btree node btree/bset.has blacklisted journal seq (%llu)",
 			     le64_to_cpu(i->journal_seq));
 
 		btree_err_on(blacklisted && ptr_written,
-			     -BCH_ERR_btree_node_read_err_fixable,
+			     FSCK_CAN_FIX,
 			     c, ca, b, i, NULL,
 			     first_bset_blacklisted_journal_seq,
 			     "found blacklisted bset (journal seq %llu) in btree node at offset %u-%u/%u",
@@ -847,7 +789,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 
 	if (ptr_written) {
 		btree_err_on(b->written < ptr_written,
-			     -BCH_ERR_btree_node_read_err_want_retry,
+			     FSCK_CAN_FIX,
 			     c, ca, b, NULL, NULL,
 			     btree_node_data_missing,
 			     "btree node data missing: expected %u sectors, found %u",
@@ -860,7 +802,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 				     !bch2_journal_seq_is_blacklisted(c,
 								      le64_to_cpu(bne->keys.journal_seq),
 								      true),
-				     -BCH_ERR_btree_node_read_err_want_retry,
+				     FSCK_CAN_FIX,
 				     c, ca, b, NULL, NULL,
 				     btree_node_bset_after_end,
 				     "found bset signature after last bset");
@@ -955,12 +897,29 @@ static void btree_node_read_work(struct work_struct *work)
 	bch2_btree_pos_to_text(&buf, c, b);
 	prt_newline(&buf);
 
-	goto start;
 	while (1) {
-		ret = bch2_bkey_pick_read_device(c,
-					bkey_i_to_s_c(&b->key),
-					&failed, &rb->pick, -1);
-		if (ret <= 0)
+		if (rb->have_ioref)
+			enumerated_ref_put(&ca->io_ref[READ], BCH_DEV_READ_REF_btree_node_read);
+		rb->have_ioref = false;
+
+		if (!bio->bi_status) {
+			memset(&bio->bi_iter, 0, sizeof(bio->bi_iter));
+			bio->bi_iter.bi_size	= btree_buf_bytes(b);
+
+			if (bch2_btree_read_corrupt_device == rb->pick.ptr.dev ||
+			    bch2_btree_read_corrupt_device < 0)
+				bch2_maybe_corrupt_bio(bio, bch2_btree_read_corrupt_ratio);
+
+			ret = bch2_btree_node_read_done(c, ca, b, &failed, &buf);
+		} else {
+			ret = __bch2_err_throw(c, -blk_status_to_bch_err(bio->bi_status));
+			bch2_mark_io_failure(&failed, &rb->pick, ret);
+		}
+
+		if (!ret ||
+		    bch2_bkey_pick_read_device(c,
+					       bkey_i_to_s_c(&b->key),
+					       &failed, &rb->pick, -1) <= 0)
 			break;
 
 		ca = bch2_dev_get_ioref(c, rb->pick.ptr.dev, READ, BCH_DEV_READ_REF_btree_node_read);
@@ -979,29 +938,6 @@ static void btree_node_read_work(struct work_struct *work)
 
 		bch2_account_io_completion(ca, BCH_MEMBER_ERROR_read,
 					   rb->start_time, !bio->bi_status);
-start:
-		if (rb->have_ioref)
-			enumerated_ref_put(&ca->io_ref[READ], BCH_DEV_READ_REF_btree_node_read);
-		rb->have_ioref = false;
-
-		if (bio->bi_status) {
-			bch2_mark_io_failure(&failed, &rb->pick,
-				__bch2_err_throw(c, -blk_status_to_bch_err(bio->bi_status)));
-			continue;
-		}
-
-		memset(&bio->bi_iter, 0, sizeof(bio->bi_iter));
-		bio->bi_iter.bi_size	= btree_buf_bytes(b);
-
-		if (bch2_btree_read_corrupt_device == rb->pick.ptr.dev ||
-		    bch2_btree_read_corrupt_device < 0)
-			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 &&
-		    !bch2_err_matches(ret, BCH_ERR_blockdev_io_error))
-			break;
 	}
 
 	bch2_io_failures_to_text(&buf, c, &failed);
@@ -1019,7 +955,7 @@ start:
 
 		set_btree_node_read_error(b);
 		bch2_btree_lost_data(c, &buf, b->c.btree_id);
-		prt_printf(&buf, "ret %s", bch2_err_str(ret));
+		prt_printf(&buf, "error %s\n", bch2_err_str(ret));
 	} else if (failed.nr) {
 		/* Separate ratelimit states for soft vs. hard errors */
 		buf.suppress = !__bch2_ratelimit(c, &c->btree.read_errors_soft);
@@ -1028,19 +964,18 @@ start:
 			prt_printf(&buf, "retry success");
 		else
 			prt_printf(&buf, "repair success");
+
+		if ((failed.nr || btree_node_need_rewrite(b)) &&
+		    c->recovery.curr_pass != BCH_RECOVERY_PASS_scan_for_btree_nodes) {
+			prt_printf(&buf, " (rewriting node)");
+			bch2_btree_node_rewrite_async(c, b);
+		}
+
+		prt_newline(&buf);
 	} else {
 		buf.suppress = true;
 	}
 
-	if ((failed.nr ||
-	     btree_node_need_rewrite(b)) &&
-	    !btree_node_read_error(b) &&
-	    c->recovery.curr_pass != BCH_RECOVERY_PASS_scan_for_btree_nodes) {
-		prt_printf(&buf, " (rewriting node)");
-		bch2_btree_node_rewrite_async(c, b);
-	}
-	prt_newline(&buf);
-
 	if (!buf.suppress)
 		bch2_print_str(c, ret ? KERN_ERR : KERN_NOTICE, buf.buf);
 

libbcachefs/btree/read.h

@@ -76,8 +76,8 @@ static inline int bset_encrypt(struct bch_fs *c, struct bset *i, unsigned offset
 
 void bch2_btree_node_drop_keys_outside_node(struct btree *);
 
-int bch2_validate_bset_keys(struct bch_fs *, struct btree *,
-			    struct bset *, int,
+int bch2_validate_bset_keys(struct bch_fs *, struct bch_dev *,
+			    struct btree *, struct bset *, int,
 			    struct bch_io_failures *,
 			    struct printbuf *);
 int bch2_validate_bset(struct bch_fs *, struct bch_dev *,

libbcachefs/btree/write.c

@@ -173,7 +173,7 @@ static void btree_node_write_work(struct work_struct *work)
 				bch2_devs_list_to_text(&msg.m, c, &d);
 				prt_newline(&msg.m);
 			} else {
-				prt_printf(&msg.m, "%s\n", bch2_err_str(ret));
+				prt_printf(&msg.m, "error %s\n", bch2_err_str(ret));
 				bch2_fs_emergency_read_only2(c, &msg.m);
 			}
 		}
@@ -241,7 +241,7 @@ static int validate_bset_for_write(struct bch_fs *c, struct btree *b,
 		return ret;
 	}
 
-	ret = bch2_validate_bset_keys(c, b, i, WRITE, NULL, NULL) ?:
+	ret = bch2_validate_bset_keys(c, NULL, b, i, WRITE, NULL, NULL) ?:
 		bch2_validate_bset(c, NULL, b, i, b->written, WRITE, NULL, NULL);
 	if (ret) {
 		bch2_inconsistent_error(c);

libbcachefs/data/read.c

@@ -738,7 +738,7 @@ static void bch2_rbio_retry(struct work_struct *work)
 				if (rbio->self_healing)
 					prt_str(&msg.m, ", self healing");
 			} else
-				prt_str(&msg.m, bch2_err_str(ret));
+				prt_printf(&msg.m, "error %s", bch2_err_str(ret));
 			prt_newline(&msg.m);
 
 			if (!bkey_deleted(&sk.k->k)) {

libbcachefs/data/write.c

@@ -610,7 +610,7 @@ static void __bch2_write_index(struct bch_write_op *op)
 			bch2_devs_list_to_text(&msg.m, c, &d);
 			prt_newline(&msg.m);
 		} else {
-			prt_printf(&msg.m, "all replicated writes failed\n");
+			prt_printf(&msg.m, "error %s\n", bch2_err_str(ret));
 		}
 
 		if (ret)

libbcachefs/errcode.h

@@ -395,11 +395,6 @@
 	x(BCH_ERR_data_read,		data_read_buffer_too_small)		\
 	x(BCH_ERR_data_read,		data_read_key_overwritten)		\
 	x(0,				rbio_narrow_crcs_fail)			\
-	x(BCH_ERR_btree_node_read_err,	btree_node_read_err_fixable)		\
-	x(BCH_ERR_btree_node_read_err,	btree_node_read_err_want_retry)		\
-	x(BCH_ERR_btree_node_read_err,	btree_node_read_err_must_retry)		\
-	x(BCH_ERR_btree_node_read_err,	btree_node_read_err_bad_node)		\
-	x(BCH_ERR_btree_node_read_err,	btree_node_read_err_incompatible)	\
 	x(0,				nopromote)				\
 	x(BCH_ERR_nopromote,		nopromote_may_not)			\
 	x(BCH_ERR_nopromote,		nopromote_no_rewrites)			\

libbcachefs/init/fs.c

@@ -117,6 +117,19 @@ static unsigned loglevel_opt(struct bch_fs *c)
 
 void bch2_print_str_loglevel(struct bch_fs *c, int loglevel, const char *str)
 {
+	unsigned len = strlen(str);
+	/*
+	 * printbufs leave extra spaces from indent level after the last
+	 * newline; strip them
+	 */
+	unsigned l = len;
+	while (l && str[l - 1] == ' ')
+		--l;
+	if (!l || str[l - 1] == '\n')
+		len = l;
+	if (!len)
+		return;
+
 	if (loglevel < 0)
 		loglevel = c->prev_loglevel;
 	else
@@ -145,7 +158,7 @@ void bch2_print_str_loglevel(struct bch_fs *c, int loglevel, const char *str)
 	struct stdio_redirect *stdio = bch2_fs_stdio_redirect(c);
 
 	if (unlikely(stdio)) {
-		bch2_stdio_redirect_write(stdio, true, str, strlen(str));
+		bch2_stdio_redirect_write(stdio, true, str, len);
 		return;
 	}
 #endif

libbcachefs/journal/write.c

@@ -249,12 +249,7 @@ static CLOSURE_CALLBACK(journal_write_done)
 			bch2_devs_list_to_text(&msg.m, c, &w->devs_written);
 			prt_newline(&msg.m);
 		} else {
-			if (err == -BCH_ERR_journal_write_err)
-				prt_printf(&msg.m, "unable to write journal to sufficient devices\n");
-			else
-				prt_printf(&msg.m, "journal write error marking replicas: %s\n",
-					   bch2_err_str(err));
-
+			prt_printf(&msg.m, "error %s\n", bch2_err_str(err));
 			bch2_fs_emergency_read_only2(c, &msg.m);
 		}
 	}

libbcachefs/util/printbuf.c

@@ -152,7 +152,7 @@ static void __printbuf_do_indent(struct printbuf *out, unsigned pos)
 
 static inline void printbuf_do_indent(struct printbuf *out, unsigned pos)
 {
-	if (out->has_indent_or_tabstops && !out->suppress_indent_tabstop_handling)
+	if (out->has_indent_or_tabstops)
 		__printbuf_do_indent(out, pos);
 }
 

libbcachefs/util/printbuf.h

@@ -91,7 +91,6 @@ struct printbuf {
 	enum printbuf_si	si_units:1;
 	bool			human_readable_units:1;
 	bool			has_indent_or_tabstops:1;
-	bool			suppress_indent_tabstop_handling:1;
 	u8			nr_tabstops;
 
 	/*

libbcachefs/vfs/ioctl.c

@@ -402,7 +402,7 @@ static long bch2_ioctl_subvolume_destroy(struct bch_fs *c, struct file *filp,
 
 	CLASS(printbuf, err)();
 	long ret = __bch2_ioctl_subvolume_destroy(c, filp, arg_v2, &err);
-	if (ret)
+	if (ret && err.buf)
 		bch_err_msg(c, ret, "%s", err.buf);
 	return ret;
 }