src/basic/missing_loop.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <linux/loop.h>
   5
   6 #include "macro.h"
   7
   8 #ifndef LOOP_CONFIGURE
   9 struct loop_config {
  10         __u32 fd;
  11         __u32 block_size;
  12         struct loop_info64 info;
  13         __u64 __reserved[8];
  14 };
  15
  16 #  define LOOP_CONFIGURE 0x4C0A
  17 #else
  18 assert_cc(LOOP_CONFIGURE == 0x4C0A);
  19 #endif
  20
  21 #ifndef LO_FLAGS_DIRECT_IO
  22 #  define LO_FLAGS_DIRECT_IO 16
  23 #  define LOOP_SET_DIRECT_IO 0x4C08
  24 #else
  25 assert_cc(LO_FLAGS_DIRECT_IO == 16);
  26 assert_cc(LO_FLAGS_DIRECT_IO == 0x4C08);
  27 #endif
  28
  29 #ifndef LOOP_SET_STATUS_SETTABLE_FLAGS
  30 #  define LOOP_SET_STATUS_SETTABLE_FLAGS (LO_FLAGS_AUTOCLEAR | LO_FLAGS_PARTSCAN | LO_FLAGS_DIRECT_IO)
  31 #endif