procfs: add conditional compilation check

`proc_timers_operations` is only used when CONFIG_CHECKPOINT_RESTORE is
enabled.

Signed-off-by: Eric Engestrom <[email protected]>
Acked-by: Cyrill Gorcunov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 35f583ad7dbe575b06b6537a8b8f1a218cd2d241..9e42411eef3fd1e0b636ca65a8e083c3c4f40526 100644 (file)
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2158,6 +2158,7 @@ static const struct file_operations proc_map_files_operations = {
        .llseek         = default_llseek,
 };
 
+#ifdef CONFIG_CHECKPOINT_RESTORE
 struct timers_private {
        struct pid *pid;
        struct task_struct *task;
@@ -2256,6 +2257,7 @@ static const struct file_operations proc_timers_operations = {
        .llseek         = seq_lseek,
        .release        = seq_release_private,
 };
+#endif
 
 static ssize_t timerslack_ns_write(struct file *file, const char __user *buf,
                                        size_t count, loff_t *offset)