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If we fail to open the super device, open the "wrong" device (that is,

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the debug superdevice when we're compiled without debug, or the normal
superdevice when we're compiled with debug.  If this succeeds, print
an informative comment and exit.

make_devices: Create both debug and normal superdevices.
This commit is contained in:
Greg Lehey 1999-03-19 07:21:27 +00:00
parent 3c7e349bca
commit fd20bb017e
1 changed files with 32 additions and 1 deletions
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33
sbin/vinum/v.c
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@ -134,7 +134,33 @@ main(int argc, char *argv[])
superdev = open(VINUM_SUPERDEV_NAME, O_RDWR); /* open vinum superdevice */
if (superdev < 0) { /* no go */
if (errno == ENOENT) /* we don't have our node, */
if (errno == ENODEV) { /* not configured, */
superdev = open(VINUM_WRONGSUPERDEV_NAME, O_RDWR); /* do we have a debug mismatch? */
if (superdev >= 0) { /* yup! */
#if VINUMDEBUG
fprintf(stderr,
"This program is compiled with debug support, but the kernel module does\n"
"not have debug support. This program must be matched with the kernel\n"
"module. Please alter /usr/src/sbin/" VINUMMOD "/Makefile and remove\n"
"the option -DVINUMDEBUG from the CFLAGS definition, or alternatively\n"
"edit /usr/src/sys/modules/" VINUMMOD "/Makefile and add the option\n"
"-DVINUMDEBUG to the CFLAGS definition. Then rebuild the component\n"
"of your choice with 'make clean all install'. If you rebuild the kernel\n"
"module, you must stop " VINUMMOD " and restart it\n");
#else
fprintf(stderr,
"This program is compiled without debug support, but the kernel module\n"
"includes debug support. This program must be matched with the kernel\n"
"module. Please alter /usr/src/sbin/" VINUMMOD "/Makefile and add\n"
"the option -DVINUMDEBUG to the CFLAGS definition, or alternatively\n"
"edit /usr/src/sys/modules/" VINUMMOD "/Makefile and remove the option\n"
"-DVINUMDEBUG from the CFLAGS definition. Then rebuild the component\n"
"of your choice with 'make clean all install'. If you rebuild the kernel\n"
"module, you must stop " VINUMMOD " and restart it\n");
#endif
return 1;
}
} else if (errno == ENOENT) /* we don't have our node, */
make_devices(); /* create them first */
if (superdev < 0) {
perror("Can't open " VINUM_SUPERDEV_NAME);
@ -402,6 +428,11 @@ make_devices(void)
VINUM_SUPERDEV) < 0)
fprintf(stderr, "Can't create %s: %s\n", VINUM_SUPERDEV_NAME, strerror(errno));
if (mknod(VINUM_WRONGSUPERDEV_NAME,
S_IRWXU | S_IFBLK, /* block device, user only */
VINUM_WRONGSUPERDEV) < 0)
fprintf(stderr, "Can't create %s: %s\n", VINUM_WRONGSUPERDEV_NAME, strerror(errno));
superdev = open(VINUM_SUPERDEV_NAME, O_RDWR); /* open the super device */
if (mknod(VINUM_DAEMON_DEV_NAME, /* daemon super device */