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| author | Nicholas Piggin <npiggin@gmail.com> | 2022-11-26 19:59:21 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-12-02 17:48:49 +1100 |
| commit | e1a31e7fd7130628cfd229253da2b4630e7a809c (patch) | |
| tree | 3c328928ed0e74716e71ccee0458f3f75ccd7131 /arch/powerpc/lib | |
| parent | 0944534ef4d5cf39c8133575524be0be3337dd62 (diff) | |
| download | linux-e1a31e7fd7130628cfd229253da2b4630e7a809c.tar.gz linux-e1a31e7fd7130628cfd229253da2b4630e7a809c.tar.bz2 linux-e1a31e7fd7130628cfd229253da2b4630e7a809c.zip | |
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
Diffstat (limited to 'arch/powerpc/lib')
| -rw-r--r-- | arch/powerpc/lib/qspinlock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/lib/qspinlock.c b/arch/powerpc/lib/qspinlock.c index 9cd442d46b9f..4d74db0e565f 100644 --- a/arch/powerpc/lib/qspinlock.c +++ b/arch/powerpc/lib/qspinlock.c @@ -55,7 +55,7 @@ static inline int decode_tail_cpu(u32 val) */ static __always_inline u32 trylock_clean_tail(struct qspinlock *lock, u32 tail) { - u32 newval = _Q_LOCKED_VAL; + u32 newval = queued_spin_encode_locked_val(); u32 prev, tmp; asm volatile( |