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| author | Josh Boyer <jwboyer@redhat.com> | 2012-02-14 10:09:54 -0500 |
|---|---|---|
| committer | Josh Boyer <jwboyer@redhat.com> | 2012-02-14 10:10:35 -0500 |
| commit | 97821c04a8f0ffc3bf22570756a1e3e205c6f92c (patch) | |
| tree | 4955e6e4ac8cf373fbbc85f2c7a556a6de3b6baa /mcelog-rcu-splat.patch | |
| parent | 01ec5d65060213e62fec0a9da25ece165c793f8a (diff) | |
| download | kernel-97821c04a8f0ffc3bf22570756a1e3e205c6f92c.tar.gz kernel-97821c04a8f0ffc3bf22570756a1e3e205c6f92c.tar.xz kernel-97821c04a8f0ffc3bf22570756a1e3e205c6f92c.zip | |
Fix rhbzs 789641 and 789644
Fix RCU usage during cpu idle (rhbz 789641)
Fix mce rcu splat (rhbz 789644)
Diffstat (limited to 'mcelog-rcu-splat.patch')
| -rw-r--r-- | mcelog-rcu-splat.patch | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/mcelog-rcu-splat.patch b/mcelog-rcu-splat.patch new file mode 100644 index 000000000..12c1fe3ea --- /dev/null +++ b/mcelog-rcu-splat.patch @@ -0,0 +1,15 @@ +diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c +index f22a9f7..f525f99 100644 +--- a/arch/x86/kernel/cpu/mcheck/mce.c ++++ b/arch/x86/kernel/cpu/mcheck/mce.c +@@ -191,7 +191,7 @@ static void drain_mcelog_buffer(void) + { + unsigned int next, i, prev = 0; + +- next = rcu_dereference_check_mce(mcelog.next); ++ next = ACCESS_ONCE(mcelog.next); + + do { + struct mce *m; + +
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