diff options
author | NeilBrown <neilb@suse.de> | 2010-11-22 19:35:25 +1100 |
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committer | NeilBrown <neilb@suse.de> | 2010-11-22 19:35:25 +1100 |
commit | a5d85af748aafe3e3830b9d16faa5c92e783b171 (patch) | |
tree | 226da96fa25afdd3bc97ead7e91b5e59b10a8e8f /super0.c | |
parent | f94c116f56cb821bfd619481d94fcd78ab8b53c0 (diff) | |
download | mdadm-a5d85af748aafe3e3830b9d16faa5c92e783b171.tar.gz |
get_info_super: report which other devices are thought to be working/failed.
To accurately detect when an array has been split and is now being
recombined, we need to track which other devices each thinks is
working.
We should never include a device in an array if it thinks that the
primary device has failed.
This patch just allows get_info_super to return a list of devices
and whether they are thought to be working or not.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'super0.c')
-rw-r--r-- | super0.c | 9 |
1 files changed, 7 insertions, 2 deletions
@@ -339,11 +339,12 @@ static void uuid_from_super0(struct supertype *st, int uuid[4]) } } -static void getinfo_super0(struct supertype *st, struct mdinfo *info) +static void getinfo_super0(struct supertype *st, struct mdinfo *info, char *map) { mdp_super_t *sb = st->sb; int working = 0; int i; + int map_disks = info->array.raid_disks; info->array.major_version = sb->major_version; info->array.minor_version = sb->minor_version; @@ -391,8 +392,12 @@ static void getinfo_super0(struct supertype *st, struct mdinfo *info) if ((sb->disks[i].state & (1<<MD_DISK_SYNC)) && (sb->disks[i].raid_disk < (unsigned)info->array.raid_disks) && (sb->disks[i].state & (1<<MD_DISK_ACTIVE)) && - !(sb->disks[i].state & (1<<MD_DISK_FAULTY))) + !(sb->disks[i].state & (1<<MD_DISK_FAULTY))) { working ++; + if (map && i < map_disks) + map[i] = 1; + } else if (map && i < map_disks) + map[i] = 0; info->array.working_disks = working; } |