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-rw-r--r--Detail.c57
1 files changed, 37 insertions, 20 deletions
diff --git a/Detail.c b/Detail.c
index aaa3dd6..55a086d 100644
--- a/Detail.c
+++ b/Detail.c
@@ -49,6 +49,30 @@ static int add_device(const char *dev, char ***p_devices,
return n_devices + 1;
}
+/**
+ * detail_fname_from_uuid() - generate uuid string with special super1 handling.
+ * @mp: map entry to parse.
+ * @buf: buf to write.
+ *
+ * Hack to workaround an issue with super1 superblocks. It swapuuid set in order for assembly
+ * to work, but can't have it set if we want this printout to match all the other uuid printouts
+ * in super1.c, so we force swapuuid to 1 to make our printout match the rest of super1.
+ *
+ * Always convert uuid if host is big endian.
+ */
+char *detail_fname_from_uuid(struct map_ent *mp, char *buf)
+{
+#if __BYTE_ORDER == BIG_ENDIAN
+ bool swap = true;
+#else
+ bool swap = false;
+#endif
+ if (strncmp(mp->metadata, "1.", 2) == 0)
+ swap = true;
+
+ return __fname_from_uuid(mp->uuid, swap, buf, ':');
+}
+
int Detail(char *dev, struct context *c)
{
/*
@@ -226,6 +250,9 @@ int Detail(char *dev, struct context *c)
str = map_num(pers, array.level);
if (c->export) {
+ char nbuf[64];
+ struct map_ent *mp = NULL, *map = NULL;
+
if (array.raid_disks) {
if (str)
printf("MD_LEVEL=%s\n", str);
@@ -247,32 +274,22 @@ int Detail(char *dev, struct context *c)
array.minor_version);
}
- if (st && st->sb && info) {
- char nbuf[64];
- struct map_ent *mp, *map = NULL;
-
- fname_from_uuid(st, info, nbuf, ':');
- printf("MD_UUID=%s\n", nbuf + 5);
+ if (info)
mp = map_by_uuid(&map, info->uuid);
+ if (!mp)
+ mp = map_by_devnm(&map, fd2devnm(fd));
- if (mp && mp->path && strncmp(mp->path, DEV_MD_DIR, DEV_MD_DIR_LEN) == 0)
+ if (mp) {
+ detail_fname_from_uuid(mp, nbuf);
+ printf("MD_UUID=%s\n", nbuf + 5);
+ if (mp->path && strncmp(mp->path, DEV_MD_DIR, DEV_MD_DIR_LEN) == 0)
printf("MD_DEVNAME=%s\n", mp->path + DEV_MD_DIR_LEN);
+ }
+ map_free(map);
+ if (st && st->sb) {
if (st->ss->export_detail_super)
st->ss->export_detail_super(st);
- map_free(map);
- } else {
- struct map_ent *mp, *map = NULL;
- char nbuf[64];
- mp = map_by_devnm(&map, fd2devnm(fd));
- if (mp) {
- __fname_from_uuid(mp->uuid, 0, nbuf, ':');
- printf("MD_UUID=%s\n", nbuf+5);
- }
- if (mp && mp->path && strncmp(mp->path, DEV_MD_DIR, DEV_MD_DIR_LEN) == 0)
- printf("MD_DEVNAME=%s\n", mp->path + DEV_MD_DIR_LEN);
-
- map_free(map);
}
if (!c->no_devices && sra) {
struct mdinfo *mdi;