diff options
Diffstat (limited to 'include/trace/events/writeback.h')
| -rw-r--r-- | include/trace/events/writeback.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index d01217407d6d..6d9443d45fa2 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -142,10 +142,10 @@ static inline size_t __trace_wb_cgroup_size(struct bdi_writeback *wb) static inline void __trace_wb_assign_cgroup(char *buf, struct bdi_writeback *wb) { struct cgroup *cgrp = wb->memcg_css->cgroup; - char *path; + int len; - path = cgroup_path(cgrp, buf, kernfs_path_len(cgrp->kn) + 1); - WARN_ON_ONCE(path != buf); + len = cgroup_path(cgrp, buf, kernfs_path_len(cgrp->kn) + 1); + WARN_ON_ONCE(len < 0); } static inline size_t __trace_wbc_cgroup_size(struct writeback_control *wbc) |