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| author | Robert Jennings <rcj@linux.vnet.ibm.com> | 2013-05-07 04:34:11 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-05-14 04:36:29 (GMT) |
| commit | 120496ac2d2d60aee68d3123a68169502a85f4b5 (patch) | |
| tree | c0f3fcebb7cf53ffcbfb2dd7032c7a03c7fd5f23 /block | |
| parent | a94a14720eaf55c5f06d6ca7ecbe3f87f6864fc6 (diff) | |
| download | linux-120496ac2d2d60aee68d3123a68169502a85f4b5.tar.xz | |
powerpc: Bring all threads online prior to migration/hibernation
This patch brings online all threads which are present but not online
prior to migration/hibernation. After migration/hibernation those
threads are taken back offline.
During migration/hibernation all online CPUs must call H_JOIN, this is
required by the hypervisor. Without this patch, threads that are offline
(H_CEDE'd) will not be woken to make the H_JOIN call and the OS will be
deadlocked (all threads either JOIN'd or CEDE'd).
Cc: <stable@kernel.org>
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions