]> git.ipfire.org Git - thirdparty/mdadm.git/blobdiff - Monitor.c
Create: support --readonly flag.
[thirdparty/mdadm.git] / Monitor.c
index d9295b5275371a5916631280f5f9133a66295730..27d448b7e552f5cac0d8e00181efd6c4b23d38fa 100644 (file)
--- a/Monitor.c
+++ b/Monitor.c
@@ -128,7 +128,7 @@ int Monitor(struct mddev_dev *devlist,
        if (!mailaddr) {
                mailaddr = conf_get_mailaddr();
                if (mailaddr && ! scan)
-                       fprintf(stderr, Name ": Monitor using email address \"%s\" from config file\n",
+                       pr_err("Monitor using email address \"%s\" from config file\n",
                               mailaddr);
        }
        mailfrom = conf_get_mailfrom();
@@ -136,11 +136,11 @@ int Monitor(struct mddev_dev *devlist,
        if (!alert_cmd) {
                alert_cmd = conf_get_program();
                if (alert_cmd && ! scan)
-                       fprintf(stderr, Name ": Monitor using program \"%s\" from config file\n",
+                       pr_err("Monitor using program \"%s\" from config file\n",
                               alert_cmd);
        }
        if (scan && !mailaddr && !alert_cmd && !dosyslog) {
-               fprintf(stderr, Name ": No mail address or alert command - not monitoring.\n");
+               pr_err("No mail address or alert command - not monitoring.\n");
                return 1;
        }
        info.alert_cmd = alert_cmd;
@@ -166,13 +166,11 @@ int Monitor(struct mddev_dev *devlist,
                                continue;
                        if (strcasecmp(mdlist->devname, "<ignore>") == 0)
                                continue;
-                       st = calloc(1, sizeof *st);
-                       if (st == NULL)
-                               continue;
+                       st = xcalloc(1, sizeof *st);
                        if (mdlist->devname[0] == '/')
-                               st->devname = strdup(mdlist->devname);
+                               st->devname = xstrdup(mdlist->devname);
                        else {
-                               st->devname = malloc(8+strlen(mdlist->devname)+1);
+                               st->devname = xmalloc(8+strlen(mdlist->devname)+1);
                                strcpy(strcpy(st->devname, "/dev/md/"),
                                       mdlist->devname);
                        }
@@ -181,17 +179,15 @@ int Monitor(struct mddev_dev *devlist,
                        st->percent = RESYNC_UNKNOWN;
                        st->expected_spares = mdlist->spare_disks;
                        if (mdlist->spare_group)
-                               st->spare_group = strdup(mdlist->spare_group);
+                               st->spare_group = xstrdup(mdlist->spare_group);
                        statelist = st;
                }
        } else {
                struct mddev_dev *dv;
                for (dv=devlist ; dv; dv=dv->next) {
                        struct mddev_ident *mdlist = conf_get_ident(dv->devname);
-                       struct state *st = calloc(1, sizeof *st);
-                       if (st == NULL)
-                               continue;
-                       st->devname = strdup(dv->devname);
+                       struct state *st = xcalloc(1, sizeof *st);
+                       st->devname = xstrdup(dv->devname);
                        st->next = statelist;
                        st->devnum = INT_MAX;
                        st->percent = RESYNC_UNKNOWN;
@@ -199,7 +195,7 @@ int Monitor(struct mddev_dev *devlist,
                        if (mdlist) {
                                st->expected_spares = mdlist->spare_disks;
                                if (mdlist->spare_group)
-                                       st->spare_group = strdup(mdlist->spare_group);
+                                       st->spare_group = xstrdup(mdlist->spare_group);
                        }
                        statelist = st;
                }
@@ -301,13 +297,13 @@ static int check_one_sharer(int scan)
                rv = stat(dir, &buf);
                if (rv != -1) {
                        if (scan) {
-                               fprintf(stderr, Name ": Only one "
+                               pr_err("Only one "
                                        "autorebuild process allowed"
                                        " in scan mode, aborting\n");
                                fclose(fp);
                                return 1;
                        } else {
-                               fprintf(stderr, Name ": Warning: One"
+                               pr_err("Warning: One"
                                        " autorebuild process already"
                                        " running.\n");
                        }
@@ -317,12 +313,12 @@ static int check_one_sharer(int scan)
        if (scan) {
                if (mkdir(MDMON_DIR, S_IRWXU) < 0 &&
                    errno != EEXIST) {
-                       fprintf(stderr, Name ": Can't create "
+                       pr_err("Can't create "
                                "autorebuild.pid file\n");
                } else {
                        fp = fopen(path, "w");
                        if (!fp)
-                               fprintf(stderr, Name ": Cannot create"
+                               pr_err("Cannot create"
                                        " autorebuild.pid"
                                        "file\n");
                        else {
@@ -455,6 +451,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
        int i;
        int remaining_disks;
        int last_disk;
+       int new_array = 0;
 
        if (test)
                alert("TestMessage", dev, NULL, ainfo);
@@ -513,6 +510,14 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
                 * just make sure it is always different. */
                array.utime = st->utime + 1;;
 
+       if (st->err) {
+               /* New array appeared where previously had and error */
+               st->err = 0;
+               st->percent = RESYNC_NONE;
+               new_array = 1;
+               alert("NewArray", st->devname, NULL, ainfo);
+       }
+
        if (st->utime == array.utime &&
            st->failed == array.failed_disks &&
            st->working == array.working_disks &&
@@ -521,7 +526,6 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
                    mse->percent == st->percent
                    ))) {
                close(fd);
-               st->err = 0;
                if ((st->active < st->raid) && st->spare == 0)
                        return 1;
                else
@@ -608,10 +612,8 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
                int change;
                char *dv = NULL;
                disc.number = i;
-               if (i >= last_disk) {
-                       newstate = 0;
-                       disc.major = disc.minor = 0;
-               } else if (info[i].major || info[i].minor) {
+               if (i < last_disk &&
+                   (info[i].major || info[i].minor)) {
                        newstate = info[i].state;
                        dv = map_dev_preferred(
                                info[i].major, info[i].minor, 1,
@@ -619,37 +621,22 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
                        disc.state = newstate;
                        disc.major = info[i].major;
                        disc.minor = info[i].minor;
-               } else if (mse &&  mse->pattern && i < (int)strlen(mse->pattern)) {
-                       switch(mse->pattern[i]) {
-                       case 'U': newstate = 6 /* ACTIVE/SYNC */; break;
-                       case '_': newstate = 8 /* REMOVED */; break;
-                       }
-                       disc.major = disc.minor = 0;
-               }
+               } else
+                       newstate = (1 << MD_DISK_REMOVED);
+
                if (dv == NULL && st->devid[i])
                        dv = map_dev_preferred(
                                major(st->devid[i]),
                                minor(st->devid[i]), 1, prefer);
                change = newstate ^ st->devstate[i];
-               if (st->utime && change && !st->err) {
-                       if (i < array.raid_disks &&
-                           (((newstate&change)&(1<<MD_DISK_FAULTY)) ||
-                            ((st->devstate[i]&change)&(1<<MD_DISK_ACTIVE)) ||
-                            ((st->devstate[i]&change)&(1<<MD_DISK_SYNC)))
-                               )
+               if (st->utime && change && !st->err && !new_array) {
+                       if ((st->devstate[i]&change)&(1<<MD_DISK_SYNC))
                                alert("Fail", dev, dv, ainfo);
-                       else if (i >= array.raid_disks &&
+                       else if ((newstate & (1<<MD_DISK_FAULTY)) &&
                                 (disc.major || disc.minor) &&
-                                st->devid[i] == makedev(disc.major, disc.minor) &&
-                                ((newstate&change)&(1<<MD_DISK_FAULTY))
-                               )
+                                st->devid[i] == makedev(disc.major, disc.minor))
                                alert("FailSpare", dev, dv, ainfo);
-                       else if (i < array.raid_disks &&
-                                ! (newstate & (1<<MD_DISK_REMOVED)) &&
-                                (((st->devstate[i]&change)&(1<<MD_DISK_FAULTY)) ||
-                                 ((newstate&change)&(1<<MD_DISK_ACTIVE)) ||
-                                 ((newstate&change)&(1<<MD_DISK_SYNC)))
-                               )
+                       else if ((newstate&change)&(1<<MD_DISK_SYNC))
                                alert("SpareActive", dev, dv, ainfo);
                }
                st->devstate[i] = newstate;
@@ -679,12 +666,10 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
                     (strcmp(mse->level, "raid0") != 0 &&
                      strcmp(mse->level, "linear") != 0))
                        ) {
-                       struct state *st = calloc(1, sizeof *st);
+                       struct state *st = xcalloc(1, sizeof *st);
                        mdu_array_info_t array;
                        int fd;
-                       if (st == NULL)
-                               continue;
-                       st->devname = strdup(get_md_name(mse->devnum));
+                       st->devname = xstrdup(get_md_name(mse->devnum));
                        if ((fd = open(st->devname, O_RDONLY)) < 0 ||
                            ioctl(fd, GET_ARRAY_INFO, &array)< 0) {
                                /* no such array */
@@ -714,7 +699,6 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
                        *statelist = st;
                        if (test)
                                alert("TestMessage", st->devname, NULL, info);
-                       alert("NewArray", st->devname, NULL, info);
                        new_found = 1;
                }
        return new_found;
@@ -972,7 +956,7 @@ int Wait(char *dev)
        int rv = 1;
 
        if (stat(dev, &stb) != 0) {
-               fprintf(stderr, Name ": Cannot find %s: %s\n", dev,
+               pr_err("Cannot find %s: %s\n", dev,
                        strerror(errno));
                return 2;
        }
@@ -1018,7 +1002,7 @@ int WaitClean(char *dev, int sock, int verbose)
        fd = open(dev, O_RDONLY);
        if (fd < 0) {
                if (verbose)
-                       fprintf(stderr, Name ": Couldn't open %s: %s\n", dev, strerror(errno));
+                       pr_err("Couldn't open %s: %s\n", dev, strerror(errno));
                return 1;
        }
 
@@ -1026,8 +1010,8 @@ int WaitClean(char *dev, int sock, int verbose)
        mdi = sysfs_read(fd, devnum, GET_VERSION|GET_LEVEL|GET_SAFEMODE);
        if (!mdi) {
                if (verbose)
-                       fprintf(stderr, Name ": Failed to read sysfs attributes for "
-                               "%s\n", dev);
+                       pr_err("Failed to read sysfs attributes for "
+                              "%s\n", dev);
                close(fd);
                return 0;
        }
@@ -1090,7 +1074,7 @@ int WaitClean(char *dev, int sock, int verbose)
                } else
                        rv = 1;
                if (rv && verbose)
-                       fprintf(stderr, Name ": Error waiting for %s to be clean\n",
+                       pr_err("Error waiting for %s to be clean\n",
                                dev);
 
                /* restore the original safe_mode_delay */