1 // SPDX-License-Identifier: GPL-2.0
7 #include <linux/errname.h>
9 static const char * const bch2_errcode_strs[] = {
10 #define x(class, err) [BCH_ERR_##err - BCH_ERR_START] = #err,
16 static unsigned bch2_errcode_parents[] = {
17 #define x(class, err) [BCH_ERR_##err - BCH_ERR_START] = class,
22 const char *bch2_err_str(int err)
28 BUG_ON(err >= BCH_ERR_MAX);
30 if (err >= BCH_ERR_START)
31 errstr = bch2_errcode_strs[err - BCH_ERR_START];
33 errstr = errname(err);
35 errstr = "(No error)";
36 return errstr ?: "(Invalid error)";
39 bool __bch2_err_matches(int err, int class)
44 BUG_ON(err >= BCH_ERR_MAX);
45 BUG_ON(class >= BCH_ERR_MAX);
47 while (err >= BCH_ERR_START && err != class)
48 err = bch2_errcode_parents[err - BCH_ERR_START];
53 int __bch2_err_class(int bch_err)
55 int std_err = -bch_err;
56 BUG_ON((unsigned) std_err >= BCH_ERR_MAX);
58 while (std_err >= BCH_ERR_START && bch2_errcode_parents[std_err - BCH_ERR_START])
59 std_err = bch2_errcode_parents[std_err - BCH_ERR_START];
61 trace_error_downcast(bch_err, std_err, _RET_IP_);
66 const char *bch2_blk_status_to_str(blk_status_t status)
68 if (status == BLK_STS_REMOVED)
69 return "device removed";
70 return blk_status_to_str(status);