mdadm-0.8.1

[thirdparty/mdadm.git] / Create.c

diff --git a/Create.c b/Create.c
index c7d35979a443c22f625069869d68ab9cddba1266..7726de32d04fff4786fd3b016582bed4e84140c1 100644 (file)
--- a/Create.c
+++ b/Create.c
@@ -1,7 +1,7 @@
 /*
- * mdctl - manage Linux "md" devices aka RAID arrays.
+ * mdadm - manage Linux "md" devices aka RAID arrays.
  *
- * Copyright (C) 2001 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -27,13 +27,13 @@
  *           Australia
  */
 
-#include "mdctl.h"
+#include "mdadm.h"
 #include       "md_u.h"
 #include       "md_p.h"
 
 int Create(char *mddev, int mdfd,
           int chunk, int level, int layout, int size, int raiddisks, int sparedisks,
-          int subdevs, char *subdev[],
+          int subdevs, mddev_dev_t devlist,
           int runstop, int verbose, int force)
 {
        /*
@@ -52,9 +52,11 @@ int Create(char *mddev, int mdfd,
         * if runstop==run, or raiddisks diskswere used,
         * RUN_ARRAY
         */
-       int minsize, maxsize;
-       int maxdisc= -1, mindisc = -1;
-       int i;
+       int minsize=0, maxsize=0;
+       char *mindisc = NULL;
+       char *maxdisc = NULL;
+       int dnum;
+       mddev_dev_t dv;
        int fail=0, warn=0;
        struct stat stb;
        int first_missing = MD_SB_DISKS*2;
@@ -93,7 +95,7 @@ int Create(char *mddev, int mdfd,
                fprintf(stderr, Name ": You have listed more disks (%d) than are in the array(%d)!\n", subdevs, raiddisks+sparedisks);
                return 1;
        }
-       if (subdevs < raiddisks) {
+       if (subdevs < raiddisks+sparedisks) {
                fprintf(stderr, Name ": You haven't given enough devices (real or missing) to create this array\n");
                return 1;
        }
@@ -121,18 +123,19 @@ int Create(char *mddev, int mdfd,
        /* now look at the subdevs */
        array.active_disks = 0;
        array.working_disks = 0;
-       for (i=0; i<subdevs; i++) {
-               char *dname = subdev[i];
+       dnum = 0;
+       for (dv=devlist; dv; dv=dv->next, dnum++) {
+               char *dname = dv->devname;
                int dsize, freesize;
                int fd;
-               if (strcasecmp(subdev[i], "missing")==0) {
-                       if (first_missing > i)
-                               first_missing = i;
+               if (strcasecmp(dname, "missing")==0) {
+                       if (first_missing > dnum)
+                               first_missing = dnum;
                        missing_disks ++;
                        continue;
                }
                array.working_disks++;
-               if (i < raiddisks)
+               if (dnum < raiddisks)
                        array.active_disks++;
                fd = open(dname, O_RDONLY, 0);
                if (fd <0 ) {
@@ -165,12 +168,12 @@ int Create(char *mddev, int mdfd,
                        close(fd);
                        continue;
                }
-               if (maxdisc< 0 || (maxdisc>=0 && freesize > maxsize)) {
-                       maxdisc = i;
+               if (maxdisc == NULL || (maxdisc && freesize > maxsize)) {
+                       maxdisc = dname;
                        maxsize = freesize;
                }
-               if (mindisc < 0 || (mindisc >=0 && freesize < minsize)) {
-                       mindisc = i;
+               if (mindisc ==NULL || (mindisc && freesize < minsize)) {
+                       mindisc = dname;
                        minsize = freesize;
                }
                warn |= check_ext2(fd, dname);
@@ -183,7 +186,7 @@ int Create(char *mddev, int mdfd,
                return 1;
        }
        if (size == 0) {
-               if (mindisc == -1) {
+               if (mindisc == NULL) {
                        fprintf(stderr, Name ": no size and no drives given - aborting create.\n");
                        return 1;
                }
@@ -191,9 +194,9 @@ int Create(char *mddev, int mdfd,
                if (verbose && level>0)
                        fprintf(stderr, Name ": size set to %dK\n", size);
        }
-       if ((maxsize-size)*100 > maxsize) {
-               fprintf(stderr, Name ": largest drive (%s) exceed size (%dK) by more than 1%\n",
-                       subdev[maxdisc], size);
+       if (level >= 1 && ((maxsize-size)*100 > maxsize)) {
+               fprintf(stderr, Name ": largest drive (%s) exceed size (%dK) by more than 1%%\n",
+                       maxdisc, size);
                warn = 1;
        }
 
@@ -267,28 +270,28 @@ int Create(char *mddev, int mdfd,
                return 1;
        }
        
-       for (i=0; i<subdevs; i++) {
+       for (dnum=0, dv = devlist ; dv ; dv=dv->next, dnum++) {
                int fd;
                struct stat stb;
                mdu_disk_info_t disk;
 
-               disk.number = i;
-               if (i >= insert_point)
+               disk.number = dnum;
+               if (dnum >= insert_point)
                        disk.number++;
                disk.raid_disk = disk.number;
                if (disk.raid_disk < raiddisks)
                        disk.state = 6; /* active and in sync */
                else
                        disk.state = 0;
-               if (strcasecmp(subdev[i], "missing")==0) {
+               if (strcasecmp(dv->devname, "missing")==0) {
                        disk.major = 0;
                        disk.minor = 0;
                        disk.state = 1; /* faulty */
                } else {
-                       fd = open(subdev[i], O_RDONLY, 0);
+                       fd = open(dv->devname, O_RDONLY, 0);
                        if (fd < 0) {
                                fprintf(stderr, Name ": failed to open %s after earlier success - aborting\n",
-                                       subdev[i]);
+                                       dv->devname);
                                return 1;
                        }
                        fstat(fd, &stb);
@@ -298,7 +301,7 @@ int Create(char *mddev, int mdfd,
                }
                if (ioctl(mdfd, ADD_NEW_DISK, &disk)) {
                        fprintf(stderr, Name ": ADD_NEW_DISK for %s failed: %s\n",
-                               subdev[i], strerror(errno));
+                               dv->devname, strerror(errno));
                        return 1;
                }
        }