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-rw-r--r--include/linux/proc_fs.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index aa6322d..6b12b0f 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -4,6 +4,7 @@
#include <linux/config.h>
#include <linux/slab.h>
#include <linux/fs.h>
+#include <linux/spinlock.h>
#include <asm/atomic.h>
/*
@@ -92,6 +93,8 @@ extern struct proc_dir_entry *proc_bus;
extern struct proc_dir_entry *proc_root_driver;
extern struct proc_dir_entry *proc_root_kcore;
+extern spinlock_t proc_subdir_lock;
+
extern void proc_root_init(void);
extern void proc_misc_init(void);
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