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-rw-r--r--include/linux/cgroup.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index e2dd44f68f97..e95143c884b2 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -125,6 +125,14 @@ struct cftype {
ssize_t (*write) (struct cgroup *cont, struct cftype *cft,
struct file *file,
const char __user *buf, size_t nbytes, loff_t *ppos);
+
+ /*
+ * write_uint() is a shortcut for the common case of accepting
+ * a single integer (as parsed by simple_strtoull) from
+ * userspace. Use in place of write(); return 0 or error.
+ */
+ int (*write_uint) (struct cgroup *cont, struct cftype *cft, u64 val);
+
int (*release) (struct inode *inode, struct file *file);
};