mirror of
https://github.com/torvalds/linux.git
synced 2024-11-15 16:41:58 +00:00
5c1ef830f6
The next patch is going to be adding private error codes for all the places we return -ENOSPC. Additionally, this patch updates return paths at all module boundaries to call bch2_err_class(), to return the standard error code. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
63 lines
1.2 KiB
C
63 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
|
|
#include "bcachefs.h"
|
|
#include "errcode.h"
|
|
|
|
#include <linux/errname.h>
|
|
|
|
static const char * const bch2_errcode_strs[] = {
|
|
#define x(class, err) [BCH_ERR_##err - BCH_ERR_START] = #err,
|
|
BCH_ERRCODES()
|
|
#undef x
|
|
NULL
|
|
};
|
|
|
|
#define BCH_ERR_0 0
|
|
|
|
static unsigned bch2_errcode_parents[] = {
|
|
#define x(class, err) [BCH_ERR_##err - BCH_ERR_START] = class,
|
|
BCH_ERRCODES()
|
|
#undef x
|
|
};
|
|
|
|
const char *bch2_err_str(int err)
|
|
{
|
|
const char *errstr;
|
|
err = abs(err);
|
|
|
|
BUG_ON(err >= BCH_ERR_MAX);
|
|
|
|
if (err >= BCH_ERR_START)
|
|
errstr = bch2_errcode_strs[err - BCH_ERR_START];
|
|
else if (err)
|
|
errstr = errname(err);
|
|
else
|
|
errstr = "(No error)";
|
|
return errstr ?: "(Invalid error)";
|
|
}
|
|
|
|
bool __bch2_err_matches(int err, int class)
|
|
{
|
|
err = abs(err);
|
|
class = abs(class);
|
|
|
|
BUG_ON(err >= BCH_ERR_MAX);
|
|
BUG_ON(class >= BCH_ERR_MAX);
|
|
|
|
while (err >= BCH_ERR_START && err != class)
|
|
err = bch2_errcode_parents[err - BCH_ERR_START];
|
|
|
|
return err == class;
|
|
}
|
|
|
|
int __bch2_err_class(int err)
|
|
{
|
|
err = -err;
|
|
BUG_ON((unsigned) err >= BCH_ERR_MAX);
|
|
|
|
while (err >= BCH_ERR_START && bch2_errcode_parents[err - BCH_ERR_START])
|
|
err = bch2_errcode_parents[err - BCH_ERR_START];
|
|
|
|
return -err;
|
|
}
|