Re: [PATCH] btrfs-progs: print-tree: Output stripe dev uuid

[David Sterba]

On Tue, Nov 03, 2015 at 02:48:09PM +0800, Qu Wenruo wrote:
> Add output for dev uuid for print_chunk().
> 
> Quite useful to debug temporary btrfs in btrfs-convert.
> 
> Signed-off-by: Qu Wenruo 

Applied, thanks.
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[PATCH] btrfs-progs: print-tree: Output stripe dev uuid

[Qu Wenruo]

Add output for dev uuid for print_chunk().

Quite useful to debug temporary btrfs in btrfs-convert.

Signed-off-by: Qu Wenruo 
---
 print-tree.c | 8 
 1 file changed, 8 insertions(+)

diff --git a/print-tree.c b/print-tree.c
index 7ddf400..4d4c3a2 100644
--- a/print-tree.c
+++ b/print-tree.c
@@ -231,9 +231,17 @@ void print_chunk(struct extent_buffer *eb, struct 
btrfs_chunk *chunk)
printf("\t\ttype %s num_stripes %d\n",
   chunk_flags_str, num_stripes);
for (i = 0 ; i < num_stripes ; i++) {
+   unsigned char dev_uuid[BTRFS_UUID_SIZE];
+   char str_dev_uuid[BTRFS_UUID_UNPARSED_SIZE];
+
+   read_extent_buffer(eb, dev_uuid,
+   (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i),
+   BTRFS_UUID_SIZE);
+   uuid_unparse(dev_uuid, str_dev_uuid);
printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
  (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
  (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
+   printf("\t\t\tdev uuid: %s\n", str_dev_uuid);
}
 }
 
-- 
2.6.2

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