btrfs has it's own per-root inode list for snapshot uses, and it has a
sanity check to make sure we're not overwriting a live inode when we add
one to the root's xarray. Change this to check the refcount to validate
it's not a live inode.
Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
---
fs/btrfs/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index e85e38df3ea0..03fc3cbdb4af 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3860,7 +3860,7 @@ static int btrfs_add_inode_to_root(struct btrfs_inode *inode, bool prealloc)
ASSERT(ret != -ENOMEM);
return ret;
} else if (existing) {
- WARN_ON(!(existing->vfs_inode.i_state & (I_WILL_FREE | I_FREEING)));
+ WARN_ON(!refcount_read(&existing->vfs_inode.i_count));
}
return 0;
--
2.49.0
