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locking: Move MCS struct definition to public header

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Move the definition of the struct mcs_spinlock from the private
mcs_spinlock.h header in kernel/locking to the mcs_spinlock.h
asm-generic header, since we will need to reference it from the
qspinlock.h header in subsequent commits.

Reviewed-by: Barret Rhoden <[email protected]>
Signed-off-by: Kumar Kartikeya Dwivedi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>
This commit is contained in:
Kumar Kartikeya Dwivedi authored and Alexei Starovoitov committed 2025-03-18 10:28:21 -07:00
1 parent ae0a457f5d
commit 8707d1eedc
2 files changed
+6 -6
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include/asm-generic/mcs_spinlock.h
+6
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@@ -1,6 +1,12 @@
#ifndef __ASM_MCS_SPINLOCK_H
#define __ASM_MCS_SPINLOCK_H
struct mcs_spinlock {
struct mcs_spinlock *next;
int locked; /* 1 if lock acquired */
int count; /* nesting count, see qspinlock.c */
};
/*
* Architectures can define their own:
*
kernel/locking/mcs_spinlock.h
-6
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@@ -15,12 +15,6 @@
#include <asm/mcs_spinlock.h>
struct mcs_spinlock {
struct mcs_spinlock *next;
int locked; /* 1 if lock acquired */
int count; /* nesting count, see qspinlock.c */
};
#ifndef arch_mcs_spin_lock_contended
/*
* Using smp_cond_load_acquire() provides the acquire semantics