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| author | Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> | 2012-01-14 06:41:31 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-14 07:11:35 +0400 |
| commit | a3301b751b19f0efbafddc4034f8e7ce6bf3007b (patch) | |
| tree | 1b94ed9c9ecf887c53bb416d5e7b59694aa353f6 /fs/aio.c | |
| parent | 96e80a7851b44f3decaac0625665cd64e550b71d (diff) | |
| download | linux-a3301b751b19f0efbafddc4034f8e7ce6bf3007b.tar.xz | |
x86/mce: Fix CPU hotplug and suspend regression related to MCE
Commit 8a25a2fd126c ("cpu: convert 'cpu' and 'machinecheck' sysdev_class
to a regular subsystem") changed how things are dealt with in the MCE
subsystem. Some of the things that got broken due to this are CPU
hotplug and suspend/hibernate.
MCE uses per_cpu allocations of struct device. So, when a CPU goes
offline and comes back online, in order to ensure that we start from a
clean slate with respect to the MCE subsystem, zero out the entire
per_cpu device structure to 0 before using it.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/aio.c')
0 files changed, 0 insertions, 0 deletions