* [PATCH] locking: Enable RT_MUTEXES by default on PREEMPT_RT.
@ 2022-02-08 17:21 Sebastian Andrzej Siewior
2022-02-11 11:16 ` [tip: locking/core] " tip-bot2 for Sebastian Andrzej Siewior
0 siblings, 1 reply; 2+ messages in thread
From: Sebastian Andrzej Siewior @ 2022-02-08 17:21 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Thomas Gleixner, Peter Zijlstra, Ingo Molnar,
Will Deacon, Waiman Long
The CONFIG_RT_MUTEXES option is enabled by CONFIG_FUTEX and CONFIG_I2C.
If both are disabled then a CONFIG_PREEMPT_RT build fails to compile.
It is not possible to have a PREEMPT_RT kernel without RT_MUTEX support
because RT_MUTEX based locking is always used.
Enable CONFIG_RT_MUTEXES by default on PREEMPT_RT builds.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
init/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2058,6 +2058,7 @@ source "arch/Kconfig"
config RT_MUTEXES
bool
+ default y if PREEMPT_RT
config BASE_SMALL
int
^ permalink raw reply [flat|nested] 2+ messages in thread
* [tip: locking/core] locking: Enable RT_MUTEXES by default on PREEMPT_RT.
2022-02-08 17:21 [PATCH] locking: Enable RT_MUTEXES by default on PREEMPT_RT Sebastian Andrzej Siewior
@ 2022-02-11 11:16 ` tip-bot2 for Sebastian Andrzej Siewior
0 siblings, 0 replies; 2+ messages in thread
From: tip-bot2 for Sebastian Andrzej Siewior @ 2022-02-11 11:16 UTC (permalink / raw)
To: linux-tip-commits
Cc: Sebastian Andrzej Siewior, Peter Zijlstra (Intel), x86, linux-kernel
The following commit has been merged into the locking/core branch of tip:
Commit-ID: 1c6f9ec0095459b5120a1cb059d442f56d3cb6e7
Gitweb: https://git.kernel.org/tip/1c6f9ec0095459b5120a1cb059d442f56d3cb6e7
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate: Tue, 08 Feb 2022 18:21:10 +01:00
Committer: Peter Zijlstra <peterz@infradead.org>
CommitterDate: Fri, 11 Feb 2022 12:13:56 +01:00
locking: Enable RT_MUTEXES by default on PREEMPT_RT.
The CONFIG_RT_MUTEXES option is enabled by CONFIG_FUTEX and CONFIG_I2C.
If both are disabled then a CONFIG_PREEMPT_RT build fails to compile.
It is not possible to have a PREEMPT_RT kernel without RT_MUTEX support
because RT_MUTEX based locking is always used.
Enable CONFIG_RT_MUTEXES by default on PREEMPT_RT builds.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/YgKmhjkcuqWXdUjQ@linutronix.de
---
init/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/init/Kconfig b/init/Kconfig
index e9119bf..beb5b86 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2054,6 +2054,7 @@ source "arch/Kconfig"
config RT_MUTEXES
bool
+ default y if PREEMPT_RT
config BASE_SMALL
int
^ permalink raw reply related [flat|nested] 2+ messages in thread
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2022-02-08 17:21 [PATCH] locking: Enable RT_MUTEXES by default on PREEMPT_RT Sebastian Andrzej Siewior
2022-02-11 11:16 ` [tip: locking/core] " tip-bot2 for Sebastian Andrzej Siewior
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