Nicholas Piggin e1a31e7fd7 powerpc/qspinlock: store owner CPU in lock word
Store the owner CPU number in the lock word so it may be yielded to,
as powerpc's paravirtualised simple spinlocks do.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221126095932.1234527-7-npiggin@gmail.com
2022-12-02 17:48:49 +11:00
..
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