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| author | LuK1337 <priv.luk@gmail.com> | 2023-10-27 18:44:20 +0200 |
|---|---|---|
| committer | LuK1337 <priv.luk@gmail.com> | 2023-10-27 18:44:47 +0200 |
| commit | 8a021c2fe1db1b3a376a563d0156e9488d9f5aff (patch) | |
| tree | 1add5fe72a072eff6ac482115ae2353bc1e03853 /include | |
| parent | 4fe3806e879f03eb0d52cfa4e88d642bb8671d7a (diff) | |
writeback: Fix cgroup_path() return value check
cgroup_path() returns length, not char *.
Change-Id: I8bdfcc0fc58789aa23f730866f27fbb932b24be1
Diffstat (limited to 'include')
| -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) |