Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
locking/osq_lock: Move the definition of optimistic_spin_node into osq_lock.c
struct optimistic_spin_node is private to the implementation.
Move it into the C file to ensure nothing is accessing it.
Signed-off-by: David Laight <david.laight@aculab.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
authored by
David Laight
and committed by
Linus Torvalds
7c223098
f016f754
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-5
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include/linux/osq_lock.h
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include/linux/osq_lock.h
···
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* An MCS like lock especially tailored for optimistic spinning for sleeping
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* lock implementations (mutex, rwsem, etc).
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*/
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struct optimistic_spin_node {
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struct optimistic_spin_node *next, *prev;
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int locked; /* 1 if lock acquired */
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int cpu; /* encoded CPU # + 1 value */
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};
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struct optimistic_spin_queue {
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/*
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kernel/locking/osq_lock.c
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kernel/locking/osq_lock.c
···
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* called from interrupt context and we have preemption disabled while
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* spinning.
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*/
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struct optimistic_spin_node {
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struct optimistic_spin_node *next, *prev;
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int locked; /* 1 if lock acquired */
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int cpu; /* encoded CPU # + 1 value */
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};
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static DEFINE_PER_CPU_SHARED_ALIGNED(struct optimistic_spin_node, osq_node);
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/*