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| author | Mike Galbraith <bitbucket@online.de> | 2014-04-07 10:55:15 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-04-11 10:39:15 +0200 |
| commit | 60e69eed85bb7b5198ef70643b5895c26ad76ef7 (patch) | |
| tree | 4fa65bf81edbd0a28d5bc160f878341657f5ad82 /drivers/iommu/Kconfig | |
| parent | 467cbd207abdbfe29514b5804a22661ab6e80dc6 (diff) | |
| download | blackbird-op-linux-60e69eed85bb7b5198ef70643b5895c26ad76ef7.tar.gz blackbird-op-linux-60e69eed85bb7b5198ef70643b5895c26ad76ef7.zip | |
sched/numa: Fix task_numa_free() lockdep splat
Sasha reported that lockdep claims that the following commit:
made numa_group.lock interrupt unsafe:
156654f491dd ("sched/numa: Move task_numa_free() to __put_task_struct()")
While I don't see how that could be, given the commit in question moved
task_numa_free() from one irq enabled region to another, the below does
make both gripes and lockups upon gripe with numa=fake=4 go away.
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Fixes: 156654f491dd ("sched/numa: Move task_numa_free() to __put_task_struct()")
Signed-off-by: Mike Galbraith <bitbucket@online.de>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: torvalds@linux-foundation.org
Cc: mgorman@suse.com
Cc: akpm@linux-foundation.org
Cc: Dave Jones <davej@redhat.com>
Link: http://lkml.kernel.org/r/1396860915.5170.5.camel@marge.simpson.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/iommu/Kconfig')
0 files changed, 0 insertions, 0 deletions
