72 lines · c
1// SPDX-License-Identifier: GPL-2.02 3#include "bcachefs.h"4#include "errcode.h"5#include "trace.h"6 7#include <linux/errname.h>8 9static const char * const bch2_errcode_strs[] = {10#define x(class, err) [BCH_ERR_##err - BCH_ERR_START] = #err,11 BCH_ERRCODES()12#undef x13 NULL14};15 16static unsigned bch2_errcode_parents[] = {17#define x(class, err) [BCH_ERR_##err - BCH_ERR_START] = class,18 BCH_ERRCODES()19#undef x20};21 22const char *bch2_err_str(int err)23{24 const char *errstr;25 26 err = abs(err);27 28 BUG_ON(err >= BCH_ERR_MAX);29 30 if (err >= BCH_ERR_START)31 errstr = bch2_errcode_strs[err - BCH_ERR_START];32 else if (err)33 errstr = errname(err);34 else35 errstr = "(No error)";36 return errstr ?: "(Invalid error)";37}38 39bool __bch2_err_matches(int err, int class)40{41 err = abs(err);42 class = abs(class);43 44 BUG_ON(err >= BCH_ERR_MAX);45 BUG_ON(class >= BCH_ERR_MAX);46 47 while (err >= BCH_ERR_START && err != class)48 err = bch2_errcode_parents[err - BCH_ERR_START];49 50 return err == class;51}52 53int __bch2_err_class(int bch_err)54{55 int std_err = -bch_err;56 BUG_ON((unsigned) std_err >= BCH_ERR_MAX);57 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];60 61 trace_error_downcast(bch_err, std_err, _RET_IP_);62 63 return -std_err;64}65 66const char *bch2_blk_status_to_str(blk_status_t status)67{68 if (status == BLK_STS_REMOVED)69 return "device removed";70 return blk_status_to_str(status);71}72