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authorKumar Kartikeya Dwivedi <memxor@gmail.com>2025-03-15 21:05:17 -0700
committerAlexei Starovoitov <ast@kernel.org>2025-03-18 10:28:21 -0700
commit8707d1eedcfbe85c4ff5191e233ddff01d39f4ba (patch)
tree23df374eb81e2b22dc99be576e1d637368824f4a
parentae0a457f5d33c336f3c4259a258f8b537531a04b (diff)
locking: Move MCS struct definition to public header
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 <brho@google.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250316040541.108729-2-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
-rw-r--r--include/asm-generic/mcs_spinlock.h6
-rw-r--r--kernel/locking/mcs_spinlock.h6
2 files changed, 6 insertions, 6 deletions
diff --git a/include/asm-generic/mcs_spinlock.h b/include/asm-generic/mcs_spinlock.h
index 10cd4ffc6ba2..39c94012b88a 100644
--- a/include/asm-generic/mcs_spinlock.h
+++ b/include/asm-generic/mcs_spinlock.h
@@ -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:
*
diff --git a/kernel/locking/mcs_spinlock.h b/kernel/locking/mcs_spinlock.h
index 85251d8771d9..16160ca8907f 100644
--- a/kernel/locking/mcs_spinlock.h
+++ b/kernel/locking/mcs_spinlock.h
@@ -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