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-rw-r--r--include/linux/cgroup.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index c4350a82320..63feaed83bc 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -400,8 +400,9 @@ struct cftype {
umode_t mode;
/*
- * If non-zero, defines the maximum length of string that can
- * be passed to write_string; defaults to 64
+ * The maximum length of string, excluding trailing nul, that can
+ * be passed to write_string. If < PAGE_SIZE-1, PAGE_SIZE-1 is
+ * assumed.
*/
size_t max_write_len;