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| author | Nicholas Piggin <[email protected]> | 2023-10-16 12:43:04 +0000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2023-10-20 11:43:34 +0000 |
| commit | 1e6d5f725738fff83e1c3cbdb8547142eb8820c2 (patch) | |
| tree | 4dca22d69a72fa9ed2ae13cdf2b2c1a28c47d699 /arch/powerpc/lib/code-patching.c | |
| parent | powerpc/qspinlock: don't propagate the not-sleepy state (diff) | |
| download | kernel-1e6d5f725738fff83e1c3cbdb8547142eb8820c2.tar.gz kernel-1e6d5f725738fff83e1c3cbdb8547142eb8820c2.zip | |
powerpc/qspinlock: Propagate sleepy if previous waiter is preempted
The sleepy (aka lock-owner-is-preempted) condition is propagated down
the queue by each waiter. If a waiter becomes preempted, it can no
longer propagate sleepy. To allow subsequent waiters to yield to the
lock owner, also check the lock owner in this case.
Signed-off-by: Nicholas Piggin <[email protected]>
Tested-by: Shrikanth Hegde <[email protected]>
Reviewed-by: "Nysal Jan K.A" <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://msgid.link/[email protected]
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
0 files changed, 0 insertions, 0 deletions