proc: introduce proc_create_single{,_data}

Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.

All trivial callers converted over.

Signed-off-by: Christoph Hellwig <hch@lst.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index a662bfcbea0e..12883656e63e 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -5335,7 +5335,7 @@ int __init cgroup_init(void)
         WARN_ON(sysfs_create_mount_point(fs_kobj, "cgroup"));
         WARN_ON(register_filesystem(&cgroup_fs_type));
         WARN_ON(register_filesystem(&cgroup2_fs_type));
-        WARN_ON(!proc_create("cgroups", 0, NULL, &proc_cgroupstats_operations));
+        WARN_ON(!proc_create_single("cgroups", 0, NULL, proc_cgroupstats_show));
 
         return 0;
 }