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btrfs: print the actual offset in btrfs_root_name

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[ Upstream commit 71008734d27f2276fcef23a5e546d358430f2d52 ]

We're supposed to print the root_key.offset in btrfs_root_name in the
case of a reloc root, not the objectid.  Fix this helper to take the key
so we have access to the offset when we need it.

Fixes: 457f1864b5 ("btrfs: pretty print leaked root name")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Josef Bacik 2020-12-16 11:18:44 -05:00 committed by Greg Kroah-Hartman
parent 1f54a26bdb
commit dbba7a38b0
3 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/btrfs/disk-io.c
View File

@ -1482,7 +1482,7 @@ void btrfs_check_leaked_roots(struct btrfs_fs_info *fs_info)
root = list_first_entry(&fs_info->allocated_roots,
struct btrfs_root, leak_list);
btrfs_err(fs_info, "leaked root %s refcount %d",
btrfs_root_name(root->root_key.objectid, buf),
btrfs_root_name(&root->root_key, buf),
refcount_read(&root->refs));
while (refcount_read(&root->refs) > 1)
btrfs_put_root(root);

10
fs/btrfs/print-tree.c
View File

@ -26,22 +26,22 @@ static const struct root_name_map root_map[] = {
{ BTRFS_DATA_RELOC_TREE_OBJECTID, "DATA_RELOC_TREE" },
};
const char *btrfs_root_name(u64 objectid, char *buf)
const char *btrfs_root_name(const struct btrfs_key *key, char *buf)
{
int i;
if (objectid == BTRFS_TREE_RELOC_OBJECTID) {
if (key->objectid == BTRFS_TREE_RELOC_OBJECTID) {
snprintf(buf, BTRFS_ROOT_NAME_BUF_LEN,
"TREE_RELOC offset=%llu", objectid);
"TREE_RELOC offset=%llu", key->offset);
return buf;
}
for (i = 0; i < ARRAY_SIZE(root_map); i++) {
if (root_map[i].id == objectid)
if (root_map[i].id == key->objectid)
return root_map[i].name;
}
snprintf(buf, BTRFS_ROOT_NAME_BUF_LEN, "%llu", objectid);
snprintf(buf, BTRFS_ROOT_NAME_BUF_LEN, "%llu", key->objectid);
return buf;
}

2
fs/btrfs/print-tree.h
View File

@ -11,6 +11,6 @@
void btrfs_print_leaf(struct extent_buffer *l);
void btrfs_print_tree(struct extent_buffer *c, bool follow);
const char *btrfs_root_name(u64 objectid, char *buf);
const char *btrfs_root_name(const struct btrfs_key *key, char *buf);
#endif