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authorJosef Bacik <josef@toxicpanda.com>2020-09-03 21:29:51 +0300
committerDavid Sterba <dsterba@suse.com>2020-10-07 13:12:20 +0300
commit457f1864b569c4a5d49046fb9a88ab82e108cdfd (patch)
treed18eaf54a07b758e727de76318b9314582fb43ca /fs/btrfs/print-tree.c
parent66a2823c54367b4d366cfa5dc12ef99ef560f428 (diff)
downloadlinux-457f1864b569c4a5d49046fb9a88ab82e108cdfd.tar.xz
btrfs: pretty print leaked root name
I'm a actual human being so am incapable of converting u64 to s64 in my head, so add a helper to get the pretty name of a root objectid and use that helper to spit out the name for any special roots for leaked roots, so I don't have to scratch my head and figure out which root I messed up the refs for. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/print-tree.c')
-rw-r--r--fs/btrfs/print-tree.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c
index 80567c11ec12..7695c4783d33 100644
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -7,6 +7,44 @@
#include "disk-io.h"
#include "print-tree.h"
+struct root_name_map {
+ u64 id;
+ char name[16];
+};
+
+static const struct root_name_map root_map[] = {
+ { BTRFS_ROOT_TREE_OBJECTID, "ROOT_TREE" },
+ { BTRFS_EXTENT_TREE_OBJECTID, "EXTENT_TREE" },
+ { BTRFS_CHUNK_TREE_OBJECTID, "CHUNK_TREE" },
+ { BTRFS_DEV_TREE_OBJECTID, "DEV_TREE" },
+ { BTRFS_FS_TREE_OBJECTID, "FS_TREE" },
+ { BTRFS_CSUM_TREE_OBJECTID, "CSUM_TREE" },
+ { BTRFS_TREE_LOG_OBJECTID, "TREE_LOG" },
+ { BTRFS_QUOTA_TREE_OBJECTID, "QUOTA_TREE" },
+ { BTRFS_UUID_TREE_OBJECTID, "UUID_TREE" },
+ { BTRFS_FREE_SPACE_TREE_OBJECTID, "FREE_SPACE_TREE" },
+ { BTRFS_DATA_RELOC_TREE_OBJECTID, "DATA_RELOC_TREE" },
+};
+
+const char *btrfs_root_name(u64 objectid, char *buf)
+{
+ int i;
+
+ if (objectid == BTRFS_TREE_RELOC_OBJECTID) {
+ snprintf(buf, BTRFS_ROOT_NAME_BUF_LEN,
+ "TREE_RELOC offset=%llu", objectid);
+ return buf;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(root_map); i++) {
+ if (root_map[i].id == objectid)
+ return root_map[i].name;
+ }
+
+ snprintf(buf, BTRFS_ROOT_NAME_BUF_LEN, "%llu", objectid);
+ return buf;
+}
+
static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
{
int num_stripes = btrfs_chunk_num_stripes(eb, chunk);