fs/dlm/util.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /******************************************************************************
   3 *******************************************************************************
   4 **
   5 **  Copyright (C) 2005-2008 Red Hat, Inc.  All rights reserved.
   6 **
   7 **
   8 *******************************************************************************
   9 ******************************************************************************/
  10
  11 #include "dlm_internal.h"
  12 #include "rcom.h"
  13 #include "util.h"
  14
  15 #define DLM_ERRNO_EDEADLK               35
  16 #define DLM_ERRNO_EBADR                 53
  17 #define DLM_ERRNO_EBADSLT               57
  18 #define DLM_ERRNO_EPROTO                71
  19 #define DLM_ERRNO_EOPNOTSUPP            95
  20 #define DLM_ERRNO_ETIMEDOUT            110
  21 #define DLM_ERRNO_EINPROGRESS          115
  22
  23 /* higher errno values are inconsistent across architectures, so select
  24    one set of values for on the wire */
  25
  26 int to_dlm_errno(int err)
  27 {
  28         switch (err) {
  29         case -EDEADLK:
  30                 return -DLM_ERRNO_EDEADLK;
  31         case -EBADR:
  32                 return -DLM_ERRNO_EBADR;
  33         case -EBADSLT:
  34                 return -DLM_ERRNO_EBADSLT;
  35         case -EPROTO:
  36                 return -DLM_ERRNO_EPROTO;
  37         case -EOPNOTSUPP:
  38                 return -DLM_ERRNO_EOPNOTSUPP;
  39         case -ETIMEDOUT:
  40                 return -DLM_ERRNO_ETIMEDOUT;
  41         case -EINPROGRESS:
  42                 return -DLM_ERRNO_EINPROGRESS;
  43         }
  44         return err;
  45 }
  46
  47 int from_dlm_errno(int err)
  48 {
  49         switch (err) {
  50         case -DLM_ERRNO_EDEADLK:
  51                 return -EDEADLK;
  52         case -DLM_ERRNO_EBADR:
  53                 return -EBADR;
  54         case -DLM_ERRNO_EBADSLT:
  55                 return -EBADSLT;
  56         case -DLM_ERRNO_EPROTO:
  57                 return -EPROTO;
  58         case -DLM_ERRNO_EOPNOTSUPP:
  59                 return -EOPNOTSUPP;
  60         case -DLM_ERRNO_ETIMEDOUT:
  61                 return -ETIMEDOUT;
  62         case -DLM_ERRNO_EINPROGRESS:
  63                 return -EINPROGRESS;
  64         }
  65         return err;
  66 }