Hi All,
I've just tried v4.1.2-rt1 RT-patch set and got below build
failure:
CC kernel/pid_namespace.o
In file included from kernel/pid_namespace.c:11:0:
include/linux/pid.h: In function 'get_pid':
include/linux/pid.h:78:3: error: implicit declaration of function 'atomic_inc' [-Werror=implicit-function-declaration]
atomic_inc(&pid->count);
^
CC drivers/base/regmap/regcache-flat.o
CC fs/lockd/xdr4.o
cc1: some warnings being treated as errors
CC drivers/base/regmap/regmap-debugfs.o
make[1]: *** [kernel/pid_namespace.o] Error 1
make: *** [kernel] Error 2
make: *** Waiting for unfinished jobs....
I identified that it's reproduced in case
CONFIG_PROVE_LOCKING=n
CONFIG_DEBUG_SPINLOCK=n
CONFIG_DEBUG_MUTEXES=n
CONFIG_DEBUG_LOCK_ALLOC=n
The same is not reproduced without RT-patch set.
The below diff fixes an issue for me:
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 23705a53..2cc64b7 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -2,6 +2,7 @@
#define _LINUX_PID_H
#include <linux/rcupdate.h>
+#include <linux/atomic.h>
enum pid_type
{
[1] https://lkml.org/lkml/2015/7/14/389
--
regards,
-grygorii
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