/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Neil Brown
- * Email: <neilb@cse.unsw.edu.au>
- * Paper: Neil Brown
- * School of Computer Science and Engineering
- * The University of New South Wales
- * Sydney, 2052
- * Australia
+ * Email: <neilb@suse.de>
*/
#include "mdadm.h"
#include "md_u.h"
#include "md_p.h"
+#include <ctype.h>
#define REGISTER_DEV _IO (MD_MAJOR, 1)
#define START_MD _IO (MD_MAJOR, 2)
*
*/
mdu_array_info_t array;
+#ifndef MDASSEMBLE
struct mdinfo *mdi;
+#endif
if (md_get_version(fd) < 9000) {
fprintf(stderr, Name ": need md driver version 0.90.0 or later\n");
return 1;
}
+#ifndef MDASSEMBLE
/* If this is an externally-manage array, we need to modify the
* metadata_version so that mdmon doesn't undo our change.
*/
}
return 0;
}
-
+#endif
if (ioctl(fd, GET_ARRAY_INFO, &array)) {
fprintf(stderr, Name ": %s does not appear to be active.\n",
devname);
#ifndef MDASSEMBLE
+static void remove_devices(int devnum, char *path)
+{
+ /* Remove all 'standard' devices for 'devnum', including
+ * partitions. Also remove names at 'path' - possibly with
+ * partition suffixes - which link to those names.
+ */
+ char base[40];
+ char *path2;
+ char link[1024];
+ int n;
+ int part;
+ char *be;
+ char *pe;
+
+ if (devnum >= 0)
+ sprintf(base, "/dev/md%d", devnum);
+ else
+ sprintf(base, "/dev/md_d%d", -1-devnum);
+ be = base + strlen(base);
+ if (path) {
+ path2 = malloc(strlen(path)+20);
+ strcpy(path2, path);
+ pe = path2 + strlen(path2);
+ } else
+ path2 = path = NULL;
+
+ for (part = 0; part < 16; part++) {
+ if (part) {
+ sprintf(be, "p%d", part);
+ if (path) {
+ if (isdigit(pe[-1]))
+ sprintf(pe, "p%d", part);
+ else
+ sprintf(pe, "%d", part);
+ }
+ }
+ /* FIXME test if really is md device ?? */
+ unlink(base);
+ if (path) {
+ n = readlink(path2, link, sizeof(link));
+ if (n && strlen(base) == n &&
+ strncmp(link, base, n) == 0)
+ unlink(path2);
+ }
+ }
+ free(path2);
+}
+
+
int Manage_runstop(char *devname, int fd, int runstop, int quiet)
{
/* Run or stop the array. array must already be configured
struct map_ent *map = NULL;
struct stat stb;
struct mdinfo *mdi;
+ int devnum;
/* If this is an mdmon managed array, just write 'inactive'
* to the array state and let mdmon clear up.
*/
+ devnum = fd2devnum(fd);
mdi = sysfs_read(fd, -1, GET_LEVEL|GET_VERSION);
if (mdi &&
mdi->array.level > 0 &&
is_subarray(mdi->text_version)) {
- char *cp;
-
/* This is mdmon managed. */
close(fd);
if (sysfs_set_str(mdi, NULL,
}
/* Give monitor a chance to act */
- cp = strchr(mdi->text_version+1, '/');
- if (*cp)
- *cp = 0;
- ping_monitor(mdi->text_version+1);
+ ping_monitor(mdi->text_version);
fd = open(devname, O_RDONLY);
} else if (mdi &&
*/
ping_monitor(mdi->sys_name);
}
- if (mdi)
- sysfs_free(mdi);
if (fd >= 0 && ioctl(fd, STOP_ARRAY, NULL)) {
if (quiet == 0) {
"process, mounted filesystem "
"or active volume group?\n");
}
+ if (mdi)
+ sysfs_free(mdi);
return 1;
}
+ /* prior to 2.6.28, KOBJ_CHANGE was not sent when an md array
+ * was stopped, so We'll do it here just to be sure. Drop any
+ * partitions as well...
+ */
+ if (fd >= 0)
+ ioctl(fd, BLKRRPART, 0);
+ if (mdi)
+ sysfs_uevent(mdi, "change");
+
+
+ if (devnum != NoMdDev &&
+ (stat("/dev/.udev", &stb) != 0 ||
+ check_env("MDADM_NO_UDEV"))) {
+ struct map_ent *mp = map_by_devnum(&map, devnum);
+ remove_devices(devnum, mp ? mp->path : NULL);
+ }
+
if (quiet <= 0)
fprintf(stderr, Name ": stopped %s\n", devname);
- if (fd >= 0 && fstat(fd, &stb) == 0) {
- int devnum;
- if (major(stb.st_rdev) == MD_MAJOR)
- devnum = minor(stb.st_rdev);
- else
- devnum = -1-(minor(stb.st_rdev)>>6);
+ if (devnum != NoMdDev) {
map_delete(&map, devnum);
map_write(map);
map_free(map);
return 0;
}
-int Manage_reconfig(char *devname, int fd, int layout)
-{
- mdu_array_info_t info;
- if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
- fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
- devname, strerror(errno));
- return 1;
- }
- info.layout = layout;
- printf("layout set to %d\n", info.layout);
- if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
- fprintf(stderr, Name ": Cannot set layout for %s: %s\n",
- devname, strerror(errno));
- return 1;
- }
- return 0;
-}
-
int Manage_subdevs(char *devname, int fd,
mddev_dev_t devlist, int verbose)
{
} else {
j = 0;
- if (stat(dv->devname, &stb)) {
+ tfd = dev_open(dv->devname, O_RDONLY);
+ if (tfd < 0 || fstat(tfd, &stb) != 0) {
fprintf(stderr, Name ": cannot find %s: %s\n",
dv->devname, strerror(errno));
+ if (tfd >= 0)
+ close(tfd);
return 1;
}
+ close(tfd);
if ((stb.st_mode & S_IFMT) != S_IFBLK) {
fprintf(stderr, Name ": %s is not a "
"block device.\n",
return 1;
}
/* Make sure it isn't in use (in 2.6 or later) */
- tfd = open(dv->devname, O_RDONLY|O_EXCL|O_DIRECT);
+ tfd = dev_open(dv->devname, O_RDONLY|O_EXCL|O_DIRECT);
if (tfd < 0) {
fprintf(stderr, Name ": Cannot open %s: %s\n",
dv->devname, strerror(errno));
}
if (array.not_persistent == 0 || tst->ss->external) {
- /* Make sure device is large enough */
- if (tst->ss->avail_size(tst, ldsize/512) <
- array_size) {
- fprintf(stderr, Name ": %s not large enough to join array\n",
- dv->devname);
- return 1;
- }
/* need to find a sample superblock to copy, and
* a spare slot to use.
fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n");
return 1;
}
+
+ /* Make sure device is large enough */
+ if (tst->ss->avail_size(tst, ldsize/512) <
+ array_size) {
+ fprintf(stderr, Name ": %s not large enough to join array\n",
+ dv->devname);
+ return 1;
+ }
+
/* Possibly this device was recently part of the array
* and was temporarily removed, and is now being re-added.
* If so, we can simply re-add it.
disc.number = mdi.disk.number;
disc.raid_disk = mdi.disk.raid_disk;
disc.state = mdi.disk.state;
- if (dv->writemostly)
+ if (dv->writemostly == 1)
disc.state |= 1 << MD_DISK_WRITEMOSTLY;
+ if (dv->writemostly == 2)
+ disc.state &= ~(1 << MD_DISK_WRITEMOSTLY);
if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) {
if (verbose >= 0)
fprintf(stderr, Name ": re-added %s\n", dv->devname);
continue;
}
+ if (errno == ENOMEM || errno == EROFS) {
+ fprintf(stderr, Name ": add new device failed for %s: %s\n",
+ dv->devname, strerror(errno));
+ return 1;
+ }
/* fall back on normal-add */
}
}
+ if (dv->re_add) {
+ fprintf(stderr, Name
+ ": --re-add for %s to %s is not possible\n",
+ dv->devname, devname);
+ return 1;
+ }
} else {
/* non-persistent. Must ensure that new drive
* is at least array.size big.
disc.state = 0;
if (array.not_persistent==0 || tst->ss->external) {
int dfd;
- if (dv->writemostly)
+ if (dv->writemostly == 1)
disc.state |= 1 << MD_DISK_WRITEMOSTLY;
- dfd = open(dv->devname, O_RDWR | O_EXCL|O_DIRECT);
- tst->ss->add_to_super(tst, &disc, dfd,
- dv->devname);
+ dfd = dev_open(dv->devname, O_RDWR | O_EXCL|O_DIRECT);
+ if (tst->ss->add_to_super(tst, &disc, dfd,
+ dv->devname)) {
+ close(dfd);
+ return 1;
+ }
/* write_init_super will close 'dfd' */
if (tst->ss->external)
/* mdmon will write the metadata */
disc.state |= (1<<MD_DISK_SYNC);
break;
}
+ free(used);
}
- if (dv->writemostly)
+ if (dv->writemostly == 1)
disc.state |= (1 << MD_DISK_WRITEMOSTLY);
if (tst->ss->external) {
/* add a disk to an external metadata container
tst->ss->getinfo_super(tst, &new_mdi);
new_mdi.disk.major = disc.major;
new_mdi.disk.minor = disc.minor;
- if (sysfs_add_disk(sra, &new_mdi) != 0) {
+ new_mdi.recovery_start = 0;
+ if (sysfs_add_disk(sra, &new_mdi, 0) != 0) {
fprintf(stderr, Name ": add new device to external metadata"
" failed for %s\n", dv->devname);
close(container_fd);
" to container - odd\n");
return 1;
}
- if (!sysfs_unique_holder(dnum, stb.st_rdev)) {
+ /* in the detached case it is not possible to
+ * check if we are the unique holder, so just
+ * rely on the 'detached' checks
+ */
+ if (strcmp(dv->devname, "detached") == 0 ||
+ sysfs_unique_holder(dnum, stb.st_rdev))
+ /* pass */;
+ else {
fprintf(stderr, Name
": %s is %s, cannot remove.\n",
dnprintable,
close(lfd);
return 1;
}
+ if (tst->ss->external) {
+ /*
+ * Before dropping our exclusive open we make an
+ * attempt at preventing mdmon from seeing an
+ * 'add' event before reconciling this 'remove'
+ * event.
+ */
+ char *name = devnum2devname(fd2devnum(fd));
+
+ if (!name) {
+ fprintf(stderr, Name ": unable to get container name\n");
+ return 1;
+ }
+
+ ping_manager(name);
+ free(name);
+ }
close(lfd);
if (verbose >= 0)
fprintf(stderr, Name ": hot removed %s\n",
projects / thirdparty / mdadm.git / blobdiff