Date: Fri, 14 Apr 2006 21:43:49 -0500 From: Yoshihiro Ota <ota@j.email.ne.jp> To: freebsd-current@freebsd.org Subject: [patch] mdmfs suffix support Message-ID: <20060414214349.86db4184.ota@j.email.ne.jp>
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This patch helps and enhances to mount md-based device
such as uzip, slice/partitions, and so on.
I think examples below can tell more than I can describe.
If mount_md is created with this patch such that we can
add md-devices to fstab, possibilities of md-device will
greatly expand.
Regards,
Hiro
# mdmfs -P -F ports-5.4.uzip -oro md.uzip /tmp/test
# df /tmp/test
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/md4.uzip 358126 277934 51542 84% /tmp/test
# mdmfs -P -F ports-5.4.uzip -oro /dev/md8.uzip /tmp/test
# df | grep test
/dev/md4.uzip 358126 277934 51542 84% /tmp/test
/dev/md8.uzip 358126 277934 51542 84% /tmp/test2
# mdmfs -P -F hd10meg.img mds1a /tmp/test3
# df /tmp/test3
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/md9s1a 7526 4 6920 0% /tmp/test3
# mdmfs -P -F file.md md /tmp/test4
# df /tmp/test4
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/md10 846 4 776 1% /tmp/test4
--- mdmfs.c.orig Thu Feb 16 16:28:54 2006
+++ mdmfs.c Fri Apr 14 21:27:08 2006
@@ -48,6 +48,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <ctype.h>
#include <unistd.h>
typedef enum { false, true } bool;
@@ -67,6 +68,7 @@
static bool norun; /* Actually run the helper programs? */
static int unit; /* The unit we're working with. */
static const char *mdname; /* Name of memory disk device (e.g., "md"). */
+static const char *mdsuffix; /* Suffix of memory disk device (e.g., ".uzip"). */
static size_t mdnamelen; /* Length of mdname. */
static const char *path_mdconfig =_PATH_MDCONFIG;
@@ -258,13 +260,16 @@
unitstr += 5;
if (strncmp(unitstr, mdname, mdnamelen) == 0)
unitstr += mdnamelen;
- if (*unitstr == '\0') {
+ if (!isdigit(*unitstr)) {
autounit = true;
unit = -1;
+ mdsuffix = unitstr;
} else {
ul = strtoul(unitstr, &p, 10);
- if (ul == ULONG_MAX || *p != '\0')
+ if (ul == ULONG_MAX)
errx(1, "bad device unit: %s", unitstr);
+ if (*p != '\0')
+ mdsuffix = p;
unit = ul;
}
@@ -446,8 +451,8 @@
{
int rv;
- rv = run(NULL, "%s%s /dev/%s%d %s", _PATH_MOUNT, args,
- mdname, unit, mtpoint);
+ rv = run(NULL, "%s%s /dev/%s%d%s %s", _PATH_MOUNT, args,
+ mdname, unit, mdsuffix, mtpoint);
if (rv)
errx(1, "mount exited with error code %d", rv);
}
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