cgroup: replace cftype->write_string() with cftype->write()

[mirror_ubuntu-bionic-kernel.git] / include / linux / cgroup.h

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index c5a170ca4a48cd82bcb3a1a2439ffef4503e5d85..aecdc84fe128512ba48a5a5fedd61b613f2fca6c 100644 (file)
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -453,8 +453,7 @@ struct cftype {
 
        /*
         * The maximum length of string, excluding trailing nul, that can
-        * be passed to write_string.  If < PAGE_SIZE-1, PAGE_SIZE-1 is
-        * assumed.
+        * be passed to write.  If < PAGE_SIZE-1, PAGE_SIZE-1 is assumed.
         */
        size_t max_write_len;
 
@@ -500,13 +499,6 @@ struct cftype {
        int (*write_s64)(struct cgroup_subsys_state *css, struct cftype *cft,
                         s64 val);
 
-       /*
-        * write_string() is passed a nul-terminated kernelspace
-        * buffer of maximum length determined by max_write_len.
-        * Returns 0 or -ve error code.
-        */
-       int (*write_string)(struct cgroup_subsys_state *css, struct cftype *cft,
-                           char *buffer);
        /*
         * trigger() callback can be used to get some kick from the
         * userspace, when the actual string written is not important