This patch prints out more super block information. The more
detailed and exact information is helpful to analyse and debug
cache device and backing device states.
Signed-off-by: Coly Li <colyli@xxxxxxx>
---
bcache-super-show.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/bcache-super-show.c b/bcache-super-show.c
index 515c596..2d46cac 100644
--- a/bcache-super-show.c
+++ b/bcache-super-show.c
@@ -131,12 +131,18 @@ int main(int argc, char **argv)
case BCACHE_SB_VERSION_CDEV:
case BCACHE_SB_VERSION_CDEV_WITH_UUID:
printf(" [cache device]\n");
+ printf("sb.nbuckets\t\t%" PRIu64 "\n", sb.nbuckets);
+ printf("sb.bucket_size\t\t%d\n", sb.bucket_size);
+ printf("sb.nr_in_set\t\t%d\n", sb.nr_in_set);
+ printf("sb.nr_this_dev\t\t%d\n", sb.nr_this_dev);
break;
// The second adds data offset support
case BCACHE_SB_VERSION_BDEV:
case BCACHE_SB_VERSION_BDEV_WITH_OFFSET:
printf(" [backing device]\n");
+ printf("sb.data_offset\t\t%" PRIu64 "\n",
+ sb.data_offset);
break;
default:
@@ -145,6 +151,14 @@ int main(int argc, char **argv)
return 0;
}
+ printf("sb.block_size\t\t%d\n", sb.block_size);
+ printf("sb.offset\t\t%" PRIu64 "\n", sb.offset);
+ printf("sb.flags\t\t%" PRIx64 "\n", sb.flags);
+ printf("sb.seq\t\t\t%" PRIu64 "\n", sb.seq);
+ printf("sb.last_mount\t\t%" PRIu32 "\n", sb.last_mount);
+ printf("sb.first_bucket\t\t%d\n", sb.first_bucket);
+ printf("sb.keys\t\t\t%d\n", sb.keys);
+
putchar('\n');
char label[SB_LABEL_SIZE + 1];
--
2.16.2
--
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