Commit 6d6936e2 authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by John W. Linville
Browse files

Fix potential scheduling while atomic in mesh_path_add.



Calling synchronize_rcu() under write-lock-ed pathtbl_resize_lock may
result in this warning (and other side effects).

It looks safe just dropping this lock before calling synchronize_rcu.
Signed-off-by: default avatarPavel Emelyanov <xemul@openvz.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 0eb03d5a
......@@ -220,9 +220,10 @@ endadd:
return -ENOMEM;
}
rcu_assign_pointer(mesh_paths, newtbl);
write_unlock(&pathtbl_resize_lock);
synchronize_rcu();
mesh_table_free(oldtbl, false);
write_unlock(&pathtbl_resize_lock);
}
endadd2:
return err;
......
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