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-rw-r--r--arch/um/include/os.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 07340c8cf20..d246d5a2460 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -160,6 +160,7 @@ extern void os_kill_process(int pid, int reap_child);
extern void os_kill_ptraced_process(int pid, int reap_child);
extern void os_usr1_process(int pid);
extern int os_getpid(void);
+extern int os_getpgrp(void);
extern int os_map_memory(void *virt, int fd, unsigned long long off,
unsigned long len, int r, int w, int x);