X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=Build.c;h=4338e190d9270ee0e990ad6b20aa53ca9255f817;hb=08ca2adffffeb3bfda3cafababfc26706a60463b;hp=bb53a11cfbdddb6fd5551defbf1dd69736d6f0bd;hpb=f9c25f1d2af73f9494589afab42e07aa9ca2f740;p=thirdparty%2Fmdadm.git diff --git a/Build.c b/Build.c index bb53a11c..4338e190 100644 --- a/Build.c +++ b/Build.c @@ -1,7 +1,7 @@ /* * mdadm - manage Linux "md" devices aka RAID arrays. * - * Copyright (C) 2001-2002 Neil Brown + * Copyright (C) 2001-2009 Neil Brown * * * This program is free software; you can redistribute it and/or modify @@ -19,12 +19,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Author: Neil Brown - * Email: - * Paper: Neil Brown - * School of Computer Science and Engineering - * The University of New South Wales - * Sydney, 2052 - * Australia + * Email: */ #include "mdadm.h" @@ -33,10 +28,10 @@ #define START_MD _IO (MD_MAJOR, 2) #define STOP_MD _IO (MD_MAJOR, 3) -int Build(char *mddev, int mdfd, int chunk, int level, int layout, - int raiddisks, - mddev_dev_t devlist, int assume_clean, - char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int verbose) +int Build(char *mddev, int chunk, int level, int layout, + int raiddisks, struct mddev_dev *devlist, int assume_clean, + char *bitmap_file, int bitmap_chunk, int write_behind, + int delay, int verbose, int autof, unsigned long long size) { /* Build a linear or raid0 arrays without superblocks * We cannot really do any checks, we just do it. @@ -55,10 +50,13 @@ int Build(char *mddev, int mdfd, int chunk, int level, int layout, int vers; struct stat stb; int subdevs = 0, missing_disks = 0; - mddev_dev_t dv; + struct mddev_dev *dv; int bitmap_fd; - unsigned long long size = ~0ULL; unsigned long long bitmapsize; + int mdfd; + char chosen_name[1024]; + int uuid[4] = {0,0,0,0}; + struct map_ent *map = NULL; /* scan all devices, make sure they really are block devices */ for (dv = devlist; dv; dv=dv->next) { @@ -112,14 +110,26 @@ int Build(char *mddev, int mdfd, int chunk, int level, int layout, break; } + /* We need to create the device. It can have no name. */ + map_lock(&map); + mdfd = create_mddev(mddev, NULL, autof, LOCAL, + chosen_name); + if (mdfd < 0) { + map_unlock(&map); + return 1; + } + mddev = chosen_name; + + map_update(&map, fd2devnum(mdfd), "none", uuid, chosen_name); + map_unlock(&map); vers = md_get_version(mdfd); - + /* looks Ok, go for it */ if (vers >= 9000) { mdu_array_info_t array; array.level = level; - array.size = 0; + array.size = size; array.nr_disks = raiddisks; array.raid_disks = raiddisks; array.md_minor = 0; @@ -140,15 +150,21 @@ int Build(char *mddev, int mdfd, int chunk, int level, int layout, if (ioctl(mdfd, SET_ARRAY_INFO, &array)) { fprintf(stderr, Name ": SET_ARRAY_INFO failed for %s: %s\n", mddev, strerror(errno)); - return 1; + goto abort; } } else if (bitmap_file) { fprintf(stderr, Name ": bitmaps not supported with this kernel\n"); - return 1; + goto abort; + } + + if (bitmap_file && level <= 0) { + fprintf(stderr, Name ": bitmaps not meaningful with level %s\n", + map_num(pers, level)?:"given"); + goto abort; } /* now add the devices */ for ((i=0), (dv = devlist) ; dv ; i++, dv=dv->next) { - unsigned long dsize; + unsigned long long dsize; int fd; if (strcmp("missing", dv->devname) == 0) continue; @@ -164,23 +180,20 @@ int Build(char *mddev, int mdfd, int chunk, int level, int layout, } fd = open(dv->devname, O_RDONLY|O_EXCL); if (fd < 0) { - fprintf(stderr, Name ": Cannot open %s: %s\n", + fprintf(stderr, Name ": Cannot open %s: %s\n", dv->devname, strerror(errno)); goto abort; } - if (ioctl(fd, BLKGETSIZE, &dsize) == 0 && dsize > 0) { - unsigned long long ldsize = dsize; - ldsize <<= 9; - if (size== 0 || ldsize < size) - size = ldsize; - } + if (get_dev_size(fd, NULL, &dsize) && + (size == 0 || dsize < size)) + size = dsize; close(fd); - if (vers>= 9000) { + if (vers >= 9000) { mdu_disk_info_t disk; disk.number = i; disk.raid_disk = i; disk.state = (1<writemostly) + if (dv->writemostly == 1) disk.state |= 1<>9; /* FIXME wrong for RAID10 */ if (CreateBitmap(bitmap_file, 1, NULL, bitmap_chunk, delay, write_behind, bitmapsize, major)) { - return 1; + goto abort; } bitmap_fd = open(bitmap_file, O_RDWR); if (bitmap_fd < 0) { fprintf(stderr, Name ": %s cannot be openned.", bitmap_file); - return 1; + goto abort; } - } + } if (bitmap_fd >= 0) { if (ioctl(mdfd, SET_BITMAP_FILE, bitmap_fd) < 0) { fprintf(stderr, Name ": Cannot set bitmap file for %s: %s\n", mddev, strerror(errno)); - return 1; + goto abort; } } } if (ioctl(mdfd, RUN_ARRAY, ¶m)) { fprintf(stderr, Name ": RUN_ARRAY failed: %s\n", strerror(errno)); + if (chunk & (chunk-1)) { + fprintf(stderr, " : Problem may be that chunk size" + " is not a power of 2\n"); + } goto abort; } } else { @@ -260,6 +279,8 @@ int Build(char *mddev, int mdfd, int chunk, int level, int layout, if (verbose >= 0) fprintf(stderr, Name ": array %s built and started.\n", mddev); + wait_for(mddev, mdfd); + close(mdfd); return 0; abort: @@ -267,6 +288,6 @@ int Build(char *mddev, int mdfd, int chunk, int level, int layout, ioctl(mdfd, STOP_ARRAY, 0); else ioctl(mdfd, STOP_MD, 0); + close(mdfd); return 1; - }