diff options
Diffstat (limited to 'debian/patches-rt/0228-locking-Make-spinlock_t-and-rwlock_t-a-RCU-section-o.patch')
| -rw-r--r-- | debian/patches-rt/0228-locking-Make-spinlock_t-and-rwlock_t-a-RCU-section-o.patch | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/debian/patches-rt/0228-locking-Make-spinlock_t-and-rwlock_t-a-RCU-section-o.patch b/debian/patches-rt/0228-locking-Make-spinlock_t-and-rwlock_t-a-RCU-section-o.patch index 77ce72c24..44d1001af 100644 --- a/debian/patches-rt/0228-locking-Make-spinlock_t-and-rwlock_t-a-RCU-section-o.patch +++ b/debian/patches-rt/0228-locking-Make-spinlock_t-and-rwlock_t-a-RCU-section-o.patch @@ -1,9 +1,9 @@ -From 166485c3d38dd51a1a9a35edb7b2d3c1054a2418 Mon Sep 17 00:00:00 2001 +From 4913939096213a3f24320657859a170bfb140b13 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Tue, 19 Nov 2019 09:25:04 +0100 Subject: [PATCH 228/323] locking: Make spinlock_t and rwlock_t a RCU section on RT -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.204-rt100.tar.xz +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.215-rt107.tar.xz On !RT a locked spinlock_t and rwlock_t disables preemption which implies a RCU read section. There is code that relies on that behaviour. @@ -18,7 +18,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> 2 files changed, 12 insertions(+) diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c -index 2fe178651254..31b374d36d04 100644 +index 2fe1786512543..31b374d36d04b 100644 --- a/kernel/locking/rtmutex.c +++ b/kernel/locking/rtmutex.c @@ -1136,6 +1136,7 @@ void __lockfunc rt_spin_lock(spinlock_t *lock) @@ -70,7 +70,7 @@ index 2fe178651254..31b374d36d04 100644 } else { local_bh_enable(); diff --git a/kernel/locking/rwlock-rt.c b/kernel/locking/rwlock-rt.c -index 16be7111aae7..3d2d1f14b513 100644 +index 16be7111aae71..3d2d1f14b5135 100644 --- a/kernel/locking/rwlock-rt.c +++ b/kernel/locking/rwlock-rt.c @@ -270,6 +270,7 @@ int __lockfunc rt_read_trylock(rwlock_t *rwlock) @@ -122,5 +122,5 @@ index 16be7111aae7..3d2d1f14b513 100644 } EXPORT_SYMBOL(rt_write_unlock); -- -2.43.0 +2.44.0 |