For debugging DDF structure changes, it is important to be able
to identify VCs by their GUIDs.
Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
---
super-ddf.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/super-ddf.c b/super-ddf.c
index cd6f298..bfb7f22 100644
--- a/super-ddf.c
+++ b/super-ddf.c
@@ -1293,6 +1293,17 @@ static void print_guid(char *guid, int tstamp)
printf(")");
}
+static const char *guid_str(const char *guid)
+{
+ static char buf[DDF_GUID_LEN*2+1];
+ int i;
+ char *p = buf;
+ for (i = 0; i < DDF_GUID_LEN; i++)
+ p += sprintf(p, "%02x", (unsigned char)guid[i]);
+ *p = '\0';
+ return (const char *) buf;
+}
+
static void examine_vd(int n, struct ddf_super *sb, char *guid)
{
int crl = sb->conf_rec_len;
@@ -2789,6 +2800,9 @@ static int __write_ddf_structure(struct dl *d, struct ddf_super *ddf, __u8 type,
&dummy);
}
if (c) {
+ dprintf("writing conf record %i on disk %08x for %s/%u\n",
+ i, d->disk.refnum, guid_str(vdc->guid),
+ vdc->sec_elmnt_seq);
vdc->seqnum = header->seq;
vdc->crc = calc_crc(vdc, conf_size);
if (write(fd, vdc, conf_size) < 0)
--
1.7.1
--
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