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authorIngo Molnar <mingo@kernel.org>2016-01-06 11:41:48 +0100
committerIngo Molnar <mingo@kernel.org>2016-01-06 11:41:48 +0100
commit3104fb3dd45bb47ff1382d1c079c251710ddcae3 (patch)
tree0c562ad5b3a960b3299edd5abdbe12b9f0a50a6b /lib
parentMerge tag 'trace-v4.4-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git... (diff)
parentsysrq: Fix warning in sysrq generated crash. (diff)
downloadlinux-3104fb3dd45bb47ff1382d1c079c251710ddcae3.tar.xz
linux-3104fb3dd45bb47ff1382d1c079c251710ddcae3.zip
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU changes from Paul E. McKenney: - Adding transitivity uniformly to rcu_node structure ->lock acquisitions. (This is implemented by the first two commits on top of v4.4-rc2 due to the pervasive nature of this change.) - Documentation updates, including RCU requirements. - Expedited grace-period changes. - Miscellaneous fixes. - Linked-list fixes, courtesy of KTSAN. - Torture-test updates. - Late-breaking fix to sysrq-generated crash. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/list_debug.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/list_debug.c b/lib/list_debug.c
index c24c2f7e296f..3859bf63561c 100644
--- a/lib/list_debug.c
+++ b/lib/list_debug.c
@@ -37,7 +37,7 @@ void __list_add(struct list_head *new,
next->prev = new;
new->next = next;
new->prev = prev;
- prev->next = new;
+ WRITE_ONCE(prev->next, new);
}
EXPORT_SYMBOL(__list_add);