tools/e2fsprogs/patches/003-darwin_directio_fix.patch

   1 --- a/lib/ext2fs/unix_io.c
   2 +++ b/lib/ext2fs/unix_io.c
   3 @@ -428,6 +428,7 @@ static errcode_t unix_open(const char *n
   4         struct unix_private_data *data = NULL;
   5         errcode_t       retval;
   6         int             open_flags;
   7 +       int             f_nocache = 0;
   8         struct stat     st;
   9  #ifdef __linux__
  10         struct          utsname ut;
  11 @@ -464,7 +465,11 @@ static errcode_t unix_open(const char *n
  12         if (flags & IO_FLAG_EXCLUSIVE)
  13                 open_flags |= O_EXCL;
  14         if (flags & IO_FLAG_DIRECT_IO)
  15 +#if !defined(O_DIRECT) && defined(F_NOCACHE)
  16 +               f_nocache = F_NOCACHE;
  17 +#else
  18                 open_flags |= O_DIRECT;
  19 +#endif
  20         data->flags = flags;
  21
  22  #ifdef HAVE_OPEN64
  23 @@ -477,6 +482,13 @@ static errcode_t unix_open(const char *n
  24                 goto cleanup;
  25         }
  26
  27 +       if (f_nocache) {
  28 +               if (fcntl(data->dev, f_nocache, 1) < 0) {
  29 +                       retval = errno;
  30 +                       goto cleanup;
  31 +               }
  32 +       }
  33 +
  34  #ifdef BLKSSZGET
  35         if (flags & IO_FLAG_DIRECT_IO) {
  36                 if (ioctl(data->dev, BLKSSZGET, &data->align) != 0)