diff options
author | Anna Czarnowska <anna.czarnowska@intel.com> | 2010-11-22 20:58:06 +1100 |
---|---|---|
committer | NeilBrown <neilb@suse.de> | 2010-11-22 20:58:06 +1100 |
commit | 52d5d101a9d17b856aaa7884f7e290166f62d03c (patch) | |
tree | 66c3a0c0a190659a1bbd51b84286802dfd5acdb5 /util.c | |
parent | d2db30455891a97ac0ac17bb64848de52bfb1566 (diff) |
Util: get device size from id
Signed-off-by: Anna Czarnowska <anna.czarnowska@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'util.c')
-rw-r--r-- | util.c | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -1094,6 +1094,22 @@ struct supertype *super_by_fd(int fd, char **subarrayp) } #endif /* !defined(MDASSEMBLE) || defined(MDASSEMBLE) && defined(MDASSEMBLE_AUTO) */ +int dev_size_from_id(unsigned int id, unsigned long long *size) +{ + char buf[20]; + int fd; + + sprintf(buf, "%d:%d", major(id), minor(id)); + fd = dev_open(buf, O_RDONLY); + if (fd < 0) + return 0; + if (get_dev_size(fd, NULL, size)) { + close(fd); + return 1; + } + close(fd); + return 0; +} struct supertype *dup_super(struct supertype *orig) { |