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authorNicolas Pitre <nicolas.pitre@linaro.org>2017-08-01 07:31:32 +0300
committerThomas Gleixner <tglx@linutronix.de>2017-08-01 15:36:35 +0300
commitbc2eecd7ecce40af43b6eb3d256b6076257df846 (patch)
treed4189369c4484b144f9cb3d72455ac3a5207dd37 /include/linux/futex.h
parentf06e8c584fa0d05312c11ea66194f3d2efb93c21 (diff)
downloadlinux-bc2eecd7ecce40af43b6eb3d256b6076257df846.tar.xz
futex: Allow for compiling out PI support
This makes it possible to preserve basic futex support and compile out the PI support when RT mutexes are not available. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Darren Hart <dvhart@infradead.org> Link: http://lkml.kernel.org/r/alpine.LFD.2.20.1708010024190.5981@knanqh.ubzr
Diffstat (limited to 'include/linux/futex.h')
-rw-r--r--include/linux/futex.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/futex.h b/include/linux/futex.h
index 7c5b694864cd..f36bfd26f998 100644
--- a/include/linux/futex.h
+++ b/include/linux/futex.h
@@ -54,7 +54,6 @@ union futex_key {
#ifdef CONFIG_FUTEX
extern void exit_robust_list(struct task_struct *curr);
-extern void exit_pi_state_list(struct task_struct *curr);
#ifdef CONFIG_HAVE_FUTEX_CMPXCHG
#define futex_cmpxchg_enabled 1
#else
@@ -64,8 +63,14 @@ extern int futex_cmpxchg_enabled;
static inline void exit_robust_list(struct task_struct *curr)
{
}
+#endif
+
+#ifdef CONFIG_FUTEX_PI
+extern void exit_pi_state_list(struct task_struct *curr);
+#else
static inline void exit_pi_state_list(struct task_struct *curr)
{
}
#endif
+
#endif