69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include "bcachefs.h"
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#include "errcode.h"
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#include <linux/errname.h>
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static const char * const bch2_errcode_strs[] = {
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#define x(class, err) [BCH_ERR_##err - BCH_ERR_START] = #err,
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BCH_ERRCODES()
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#undef x
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NULL
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};
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static unsigned bch2_errcode_parents[] = {
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#define x(class, err) [BCH_ERR_##err - BCH_ERR_START] = class,
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BCH_ERRCODES()
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#undef x
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};
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const char *bch2_err_str(int err)
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{
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const char *errstr;
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err = abs(err);
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BUG_ON(err >= BCH_ERR_MAX);
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if (err >= BCH_ERR_START)
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errstr = bch2_errcode_strs[err - BCH_ERR_START];
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else if (err)
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errstr = errname(err);
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else
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errstr = "(No error)";
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return errstr ?: "(Invalid error)";
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}
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bool __bch2_err_matches(int err, int class)
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{
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err = abs(err);
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class = abs(class);
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BUG_ON(err >= BCH_ERR_MAX);
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BUG_ON(class >= BCH_ERR_MAX);
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while (err >= BCH_ERR_START && err != class)
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err = bch2_errcode_parents[err - BCH_ERR_START];
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return err == class;
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}
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int __bch2_err_class(int err)
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{
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err = -err;
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BUG_ON((unsigned) err >= BCH_ERR_MAX);
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while (err >= BCH_ERR_START && bch2_errcode_parents[err - BCH_ERR_START])
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err = bch2_errcode_parents[err - BCH_ERR_START];
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return -err;
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}
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const char *bch2_blk_status_to_str(blk_status_t status)
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{
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if (status == BLK_STS_REMOVED)
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return "device removed";
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return blk_status_to_str(status);
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}
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