Create missing /dev files where needed.

[thirdparty/mdadm.git] / Create.c

diff --git a/Create.c b/Create.c
index 0399732bd286c1399840f9702f1f8b9a7b9ff39b..71bab18b7f414b10810fb5ed1cb30758c05b4f94 100644 (file)
--- a/Create.c
+++ b/Create.c
@@ -32,7 +32,7 @@
 #include       "md_p.h"
 
 int Create(struct supertype *st, char *mddev, int mdfd,
-          int chunk, int level, int layout, unsigned long size, int raiddisks, int sparedisks,
+          int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks,
           char *name,
           int subdevs, mddev_dev_t devlist,
           int runstop, int verbose, int force, int assume_clean,
@@ -74,6 +74,8 @@ int Create(struct supertype *st, char *mddev, int mdfd,
        mdu_array_info_t array;
        int major = BITMAP_MAJOR_HI;
 
+       memset(&array, 0, sizeof(array));
+
        vers = md_get_version(mdfd);
        if (vers < 9000) {
                fprintf(stderr, Name ": Create requires md driver version 0.90.0 or later\n");
@@ -212,6 +214,27 @@ int Create(struct supertype *st, char *mddev, int mdfd,
                        ldsize = dsize;
                        ldsize <<= 9;
                }
+               if (st == NULL) {
+                       /* Need to choose a default metadata, which is different
+                        * depending on the sizes of devices
+                        */
+                       int i;
+                       char *name = "default";
+                       if (level >= 1 && ldsize > (0x7fffffffULL<<10))
+                               name = "default/large";
+                       for(i=0; !st && superlist[i]; i++)
+                               st = superlist[i]->match_metadata_desc(name);
+
+                       if (!st) {
+                               fprintf(stderr, Name ": internal error - no default metadata style\n");
+                               exit(2);
+                       }
+                       if (st->ss->major != 0 ||
+                           st->minor_version != 90)
+                               fprintf(stderr, Name ": Defaulting to verion %d.%d metadata\n",
+                                       st->ss->major,
+                                       st->minor_version);
+               }
                freesize = st->ss->avail_size(st, ldsize >> 9);
                if (freesize == 0) {
                        fprintf(stderr, Name ": %s is too small: %luK\n",
@@ -229,7 +252,7 @@ int Create(struct supertype *st, char *mddev, int mdfd,
 
                if (size && freesize < size) {
                        fprintf(stderr, Name ": %s is smaller that given size."
-                               " %lluK < %luK + superblock\n", dname, freesize, size);
+                               " %lluK < %lluK + superblock\n", dname, freesize, size);
                        fail = 1;
                        close(fd);
                        continue;
@@ -260,18 +283,18 @@ int Create(struct supertype *st, char *mddev, int mdfd,
                }
                if (level > 0 || level == LEVEL_MULTIPATH || level == LEVEL_FAULTY) {
                        /* size is meaningful */
-                       if (minsize > 0x100000000ULL) {
+                       if (minsize > 0x100000000ULL && st->ss->major == 0) {
                                fprintf(stderr, Name ": devices too large for RAID level %d\n", level); 
                                return 1;
                        }
                        size = minsize;
                        if (verbose > 0)
-                               fprintf(stderr, Name ": size set to %luK\n", size);
+                               fprintf(stderr, Name ": size set to %lluK\n", size);
                }
        }
        if (level > 0 && ((maxsize-size)*100 > maxsize)) {
                if (runstop != 1 || verbose >= 0)
-                       fprintf(stderr, Name ": largest drive (%s) exceed size (%luK) by more than 1%%\n",
+                       fprintf(stderr, Name ": largest drive (%s) exceed size (%lluK) by more than 1%%\n",
                                maxdisc, size);
                warn = 1;
        }
@@ -335,10 +358,10 @@ int Create(struct supertype *st, char *mddev, int mdfd,
                 * .. but convert to sectors.
                 */
                int ncopies = (layout>>8) * (layout & 255);
-               bitmapsize = (unsigned long long)array.size * raiddisks / ncopies * 2;
-               printf("bms=%llu as=%d rd=%d nc=%d\n", bitmapsize, array.size, raiddisks, ncopies);
+               bitmapsize = (unsigned long long)size * raiddisks / ncopies * 2;
+/*             printf("bms=%llu as=%d rd=%d nc=%d\n", bitmapsize, size, raiddisks, ncopies);*/
        } else
-               bitmapsize = (unsigned long long)array.size * 2;
+               bitmapsize = (unsigned long long)size * 2;
 
        /* There is lots of redundancy in these disk counts,
         * raid_disks is the most meaningful value
@@ -366,7 +389,7 @@ int Create(struct supertype *st, char *mddev, int mdfd,
        array.chunk_size = chunk*1024;
        array.major_version = st->ss->major;
 
-       if (!st->ss->init_super(st, &super, &array, name))
+       if (!st->ss->init_super(st, &super, &array, size, name))
                return 1;
 
        if (bitmap_file && vers < 9003) {