Decode raid-stripe-tree entries on btrfs_print_tree().
Signed-off-by: Johannes Thumshirn <[email protected]>
---
fs/btrfs/print-tree.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c
index 0c93439e929f..f3f487fc6400 100644
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -9,6 +9,8 @@
#include "print-tree.h"
#include "accessors.h"
#include "tree-checker.h"
+#include "volumes.h"
+#include "raid-stripe-tree.h"
struct root_name_map {
u64 id;
@@ -28,6 +30,7 @@ static const struct root_name_map root_map[] = {
{ BTRFS_FREE_SPACE_TREE_OBJECTID, "FREE_SPACE_TREE" },
{ BTRFS_BLOCK_GROUP_TREE_OBJECTID, "BLOCK_GROUP_TREE" },
{ BTRFS_DATA_RELOC_TREE_OBJECTID, "DATA_RELOC_TREE" },
+ { BTRFS_RAID_STRIPE_TREE_OBJECTID, "RAID_STRIPE_TREE" },
};
const char *btrfs_root_name(const struct btrfs_key *key, char *buf)
@@ -189,6 +192,24 @@ static void print_uuid_item(const struct extent_buffer *l, unsigned long offset,
}
}
+static void print_raid_stripe_key(const struct extent_buffer *eb, u32 item_size,
+ struct btrfs_stripe_extent *stripe)
+{
+ const int num_stripes = btrfs_num_raid_stripes(item_size);
+ const u8 encoding = btrfs_stripe_extent_encoding(eb, stripe);
+ int i;
+
+ pr_info("\t\t\tencoding: %s\n",
+ (encoding && encoding < BTRFS_NR_RAID_TYPES) ?
+ btrfs_raid_array[encoding].raid_name : "unknown");
+
+ for (i = 0; i < num_stripes; i++)
+ pr_info("\t\t\tstride %d devid %llu physical %llu length %llu\n",
+ i, btrfs_raid_stride_devid(eb, &stripe->strides[i]),
+ btrfs_raid_stride_physical(eb, &stripe->strides[i]),
+ btrfs_raid_stride_length(eb, &stripe->strides[i]));
+}
+
/*
* Helper to output refs and locking status of extent buffer. Useful to debug
* race condition related problems.
@@ -349,6 +370,11 @@ void btrfs_print_leaf(const struct extent_buffer *l)
print_uuid_item(l, btrfs_item_ptr_offset(l, i),
btrfs_item_size(l, i));
break;
+ case BTRFS_RAID_STRIPE_KEY:
+ print_raid_stripe_key(l, btrfs_item_size(l, i),
+ btrfs_item_ptr(l, i,
+ struct btrfs_stripe_extent));
+ break;
}
}
}
--
2.41.0