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authorIngo Molnar <mingo@kernel.org>2017-08-21 09:45:19 +0200
committerIngo Molnar <mingo@kernel.org>2017-08-21 09:45:19 +0200
commit94edf6f3c20c9c8ee301bde04150a91bab4bf32c (patch)
tree4a2af658258cf42fde24c1224e44c3e6a18c2792 /arch/arm64/kernel
parentMerge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu (diff)
parentMerge branches 'doc.2017.08.17a', 'fixes.2017.08.17a', 'hotplug.2017.07.25b', 'misc.2017.08.17a', 'spin_unlock_wait_no.2017.08.17a', 'srcu.2017.07.27c' and 'torture.2017.07.24c' into HEAD (diff)
downloadlinux-dev-94edf6f3c20c9c8ee301bde04150a91bab4bf32c.tar.xz
linux-dev-94edf6f3c20c9c8ee301bde04150a91bab4bf32c.zip
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney: - Removal of spin_unlock_wait() - SRCU updates - Torture-test updates - Documentation updates - Miscellaneous fixes - CPU-hotplug fixes - Miscellaneous non-RCU fixes Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm64/kernel')
-rw-r--r--arch/arm64/kernel/process.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 659ae8094ed5..c8f7d98d8cb9 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -360,6 +360,8 @@ __notrace_funcgraph struct task_struct *__switch_to(struct task_struct *prev,
/*
* Complete any pending TLB or cache maintenance on this CPU in case
* the thread migrates to a different CPU.
+ * This full barrier is also required by the membarrier system
+ * call.
*/
dsb(ish);