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Subject[PATCH v2 4/4] locking: Remove dummy arch_{read,spin,write}_lock_flags implementations
Date
The arch_{read,spin,write}_lock_flags macros are simply mapped to the
non-flags versions by the majority of architectures, so do this in core
code and remove the dummy implementations. Also remove the implementation
in spinlock_up.h, since all callers of do_raw_spin_lock_flags call
local_irq_save(flags) anyway.

Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
arch/alpha/include/asm/spinlock.h | 4 ----
arch/arc/include/asm/spinlock.h | 4 ----
arch/arm/include/asm/spinlock.h | 5 -----
arch/arm64/include/asm/spinlock.h | 5 -----
arch/blackfin/include/asm/spinlock.h | 6 ------
arch/hexagon/include/asm/spinlock.h | 5 -----
arch/ia64/include/asm/spinlock.h | 5 +++--
arch/m32r/include/asm/spinlock.h | 4 ----
arch/metag/include/asm/spinlock.h | 5 -----
arch/metag/include/asm/spinlock_lnkget.h | 3 ---
arch/mips/include/asm/spinlock.h | 3 ---
arch/mn10300/include/asm/spinlock.h | 4 +---
arch/parisc/include/asm/spinlock.h | 4 +---
arch/powerpc/include/asm/spinlock.h | 4 +---
arch/s390/include/asm/spinlock.h | 4 +---
arch/sh/include/asm/spinlock-cas.h | 4 ----
arch/sh/include/asm/spinlock-llsc.h | 4 ----
arch/sparc/include/asm/spinlock_32.h | 4 ----
arch/sparc/include/asm/spinlock_64.h | 3 ---
arch/tile/include/asm/spinlock_32.h | 6 ------
arch/tile/include/asm/spinlock_64.h | 6 ------
arch/x86/include/asm/spinlock.h | 3 ---
arch/xtensa/include/asm/spinlock.h | 5 -----
include/asm-generic/qspinlock.h | 1 -
include/linux/rwlock.h | 9 +++++++++
include/linux/spinlock.h | 4 ++++
include/linux/spinlock_up.h | 8 --------
27 files changed, 20 insertions(+), 102 deletions(-)

diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h
index 7bff6316b8bb..3e2b4a05cb0f 100644
--- a/arch/alpha/include/asm/spinlock.h
+++ b/arch/alpha/include/asm/spinlock.h
@@ -13,7 +13,6 @@
* We make no fairness assumptions. They have a cost.
*/

-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
#define arch_spin_is_locked(x) ((x)->lock != 0)

static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
@@ -160,7 +159,4 @@ static inline void arch_write_unlock(arch_rwlock_t * lock)
lock->lock = 0;
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* _ALPHA_SPINLOCK_H */
diff --git a/arch/arc/include/asm/spinlock.h b/arch/arc/include/asm/spinlock.h
index f85bb585cdfc..2ba04a7db621 100644
--- a/arch/arc/include/asm/spinlock.h
+++ b/arch/arc/include/asm/spinlock.h
@@ -14,7 +14,6 @@
#include <asm/barrier.h>

#define arch_spin_is_locked(x) ((x)->slock != __ARCH_SPIN_LOCK_UNLOCKED__)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)

#ifdef CONFIG_ARC_HAS_LLSC

@@ -410,7 +409,4 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)

#endif

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index d40a28fcbc62..daa87212c9a1 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -52,8 +52,6 @@ static inline void dsb_sev(void)
* memory.
*/

-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
static inline void arch_spin_lock(arch_spinlock_t *lock)
{
unsigned long tmp;
@@ -270,7 +268,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
}
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h
index 1504f2b95c57..aa51a38e46e4 100644
--- a/arch/arm64/include/asm/spinlock.h
+++ b/arch/arm64/include/asm/spinlock.h
@@ -27,8 +27,6 @@
* instructions.
*/

-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
static inline void arch_spin_lock(arch_spinlock_t *lock)
{
unsigned int tmp;
@@ -303,9 +301,6 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
/* read_can_lock - would read_trylock() succeed? */
#define arch_read_can_lock(x) ((x)->lock < 0x80000000)

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
/* See include/linux/spinlock.h */
#define smp_mb__after_spinlock() smp_mb()

diff --git a/arch/blackfin/include/asm/spinlock.h b/arch/blackfin/include/asm/spinlock.h
index 3885d12d9939..839d1441af3a 100644
--- a/arch/blackfin/include/asm/spinlock.h
+++ b/arch/blackfin/include/asm/spinlock.h
@@ -36,8 +36,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
__raw_spin_lock_asm(&lock->lock);
}

-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
static inline int arch_spin_trylock(arch_spinlock_t *lock)
{
return __raw_spin_trylock_asm(&lock->lock);
@@ -53,8 +51,6 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
__raw_read_lock_asm(&rw->lock);
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-
static inline int arch_read_trylock(arch_rwlock_t *rw)
{
return __raw_read_trylock_asm(&rw->lock);
@@ -70,8 +66,6 @@ static inline void arch_write_lock(arch_rwlock_t *rw)
__raw_write_lock_asm(&rw->lock);
}

-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
static inline int arch_write_trylock(arch_rwlock_t *rw)
{
return __raw_write_trylock_asm(&rw->lock);
diff --git a/arch/hexagon/include/asm/spinlock.h b/arch/hexagon/include/asm/spinlock.h
index 9f9414b9c303..48020863f53a 100644
--- a/arch/hexagon/include/asm/spinlock.h
+++ b/arch/hexagon/include/asm/spinlock.h
@@ -167,11 +167,6 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
/*
* SMP spinlocks are intended to allow only a single CPU at the lock
*/
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
#define arch_spin_is_locked(x) ((x)->lock != 0)

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif
diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
index ed1e6212e9de..35b31884863b 100644
--- a/arch/ia64/include/asm/spinlock.h
+++ b/arch/ia64/include/asm/spinlock.h
@@ -126,6 +126,7 @@ static __always_inline void arch_spin_lock_flags(arch_spinlock_t *lock,
{
arch_spin_lock(lock);
}
+#define arch_spin_lock_flags arch_spin_lock_flags

#ifdef ASM_SUPPORTED

@@ -153,6 +154,7 @@ arch_read_lock_flags(arch_rwlock_t *lock, unsigned long flags)
: "p6", "p7", "r2", "memory");
}

+#define arch_read_lock_flags arch_read_lock_flags
#define arch_read_lock(lock) arch_read_lock_flags(lock, 0)

#else /* !ASM_SUPPORTED */
@@ -205,6 +207,7 @@ arch_write_lock_flags(arch_rwlock_t *lock, unsigned long flags)
: "ar.ccv", "p6", "p7", "r2", "r29", "memory");
}

+#define arch_write_lock_flags arch_write_lock_flags
#define arch_write_lock(rw) arch_write_lock_flags(rw, 0)

#define arch_write_trylock(rw) \
@@ -228,8 +231,6 @@ static inline void arch_write_unlock(arch_rwlock_t *x)

#else /* !ASM_SUPPORTED */

-#define arch_write_lock_flags(l, flags) arch_write_lock(l)
-
#define arch_write_lock(l) \
({ \
__u64 ia64_val, ia64_set_val = ia64_dep_mi(-1, 0, 31, 1); \
diff --git a/arch/m32r/include/asm/spinlock.h b/arch/m32r/include/asm/spinlock.h
index 6809a9bbd169..882203db8723 100644
--- a/arch/m32r/include/asm/spinlock.h
+++ b/arch/m32r/include/asm/spinlock.h
@@ -28,7 +28,6 @@
*/

#define arch_spin_is_locked(x) (*(volatile int *)(&(x)->slock) <= 0)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)

/**
* arch_spin_trylock - Try spin lock and return a result
@@ -305,7 +304,4 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
return 0;
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* _ASM_M32R_SPINLOCK_H */
diff --git a/arch/metag/include/asm/spinlock.h b/arch/metag/include/asm/spinlock.h
index b5b4174cde5e..80e3e59172f2 100644
--- a/arch/metag/include/asm/spinlock.h
+++ b/arch/metag/include/asm/spinlock.h
@@ -15,9 +15,4 @@
* locked.
*/

-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/metag/include/asm/spinlock_lnkget.h b/arch/metag/include/asm/spinlock_lnkget.h
index d5c334ddfd62..5708ac0a9d09 100644
--- a/arch/metag/include/asm/spinlock_lnkget.h
+++ b/arch/metag/include/asm/spinlock_lnkget.h
@@ -209,7 +209,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
return tmp;
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* __ASM_SPINLOCK_LNKGET_H */
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index 4260d3f80d3a..ee81297d9117 100644
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -13,7 +13,4 @@
#include <asm/qrwlock.h>
#include <asm/qspinlock.h>

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* _ASM_SPINLOCK_H */
diff --git a/arch/mn10300/include/asm/spinlock.h b/arch/mn10300/include/asm/spinlock.h
index 54f75dac8094..879cd0df53ba 100644
--- a/arch/mn10300/include/asm/spinlock.h
+++ b/arch/mn10300/include/asm/spinlock.h
@@ -84,6 +84,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock,
: "d" (flags), "a"(&lock->slock), "i"(EPSW_IE | MN10300_CLI_LEVEL)
: "memory", "cc");
}
+#define arch_spin_lock_flags arch_spin_lock_flags

#ifdef __KERNEL__

@@ -171,9 +172,6 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
return 0;
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#define _raw_spin_relax(lock) cpu_relax()
#define _raw_read_relax(lock) cpu_relax()
#define _raw_write_relax(lock) cpu_relax()
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index 136e1c9bb8a9..d66d7b1efc4e 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -31,6 +31,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *x,
cpu_relax();
mb();
}
+#define arch_spin_lock_flags arch_spin_lock_flags

static inline void arch_spin_unlock(arch_spinlock_t *x)
{
@@ -168,7 +169,4 @@ static __inline__ int arch_write_trylock(arch_rwlock_t *rw)
return result;
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index d83f4f755ad8..b9ebc3085fb7 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -161,6 +161,7 @@ void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
local_irq_restore(flags_dis);
}
}
+#define arch_spin_lock_flags arch_spin_lock_flags

static inline void arch_spin_unlock(arch_spinlock_t *lock)
{
@@ -299,9 +300,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
rw->lock = 0;
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#define arch_spin_relax(lock) __spin_yield(lock)
#define arch_read_relax(lock) __rw_yield(lock)
#define arch_write_relax(lock) __rw_yield(lock)
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index 4eca60cc81e4..9fa855f91e55 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -81,6 +81,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lp,
if (!arch_spin_trylock_once(lp))
arch_spin_lock_wait_flags(lp, flags);
}
+#define arch_spin_lock_flags arch_spin_lock_flags

static inline int arch_spin_trylock(arch_spinlock_t *lp)
{
@@ -114,9 +115,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
extern int _raw_read_trylock_retry(arch_rwlock_t *lp);
extern int _raw_write_trylock_retry(arch_rwlock_t *lp);

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
static inline int arch_read_trylock_once(arch_rwlock_t *rw)
{
int old = ACCESS_ONCE(rw->lock);
diff --git a/arch/sh/include/asm/spinlock-cas.h b/arch/sh/include/asm/spinlock-cas.h
index 295993c2598e..270ee4d3e25b 100644
--- a/arch/sh/include/asm/spinlock-cas.h
+++ b/arch/sh/include/asm/spinlock-cas.h
@@ -27,7 +27,6 @@ static inline unsigned __sl_cas(volatile unsigned *p, unsigned old, unsigned new
*/

#define arch_spin_is_locked(x) ((x)->lock <= 0)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)

static inline void arch_spin_lock(arch_spinlock_t *lock)
{
@@ -90,7 +89,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
return __sl_cas(&rw->lock, RW_LOCK_BIAS, 0) == RW_LOCK_BIAS;
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* __ASM_SH_SPINLOCK_CAS_H */
diff --git a/arch/sh/include/asm/spinlock-llsc.h b/arch/sh/include/asm/spinlock-llsc.h
index a6f9edd15317..715595de286a 100644
--- a/arch/sh/include/asm/spinlock-llsc.h
+++ b/arch/sh/include/asm/spinlock-llsc.h
@@ -19,7 +19,6 @@
*/

#define arch_spin_is_locked(x) ((x)->lock <= 0)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)

/*
* Simple spin lock operations. There are two variants, one clears IRQ's
@@ -197,7 +196,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
return (oldval > (RW_LOCK_BIAS - 1));
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* __ASM_SH_SPINLOCK_LLSC_H */
diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h
index 9d9129efd5d6..12bf857b471e 100644
--- a/arch/sparc/include/asm/spinlock_32.h
+++ b/arch/sparc/include/asm/spinlock_32.h
@@ -182,10 +182,6 @@ static inline int __arch_read_trylock(arch_rwlock_t *rw)
res; \
})

-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-#define arch_read_lock_flags(rw, flags) arch_read_lock(rw)
-#define arch_write_lock_flags(rw, flags) arch_write_lock(rw)
-
#endif /* !(__ASSEMBLY__) */

#endif /* __SPARC_SPINLOCK_H */
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
index 3b67705e1b74..99b6e1c4f630 100644
--- a/arch/sparc/include/asm/spinlock_64.h
+++ b/arch/sparc/include/asm/spinlock_64.h
@@ -13,9 +13,6 @@
#include <asm/qrwlock.h>
#include <asm/qspinlock.h>

-#define arch_read_lock_flags(p, f) arch_read_lock(p)
-#define arch_write_lock_flags(p, f) arch_write_lock(p)
-
#endif /* !(__ASSEMBLY__) */

#endif /* !(__SPARC64_SPINLOCK_H) */
diff --git a/arch/tile/include/asm/spinlock_32.h b/arch/tile/include/asm/spinlock_32.h
index 91d05f21cba9..fb5313d77315 100644
--- a/arch/tile/include/asm/spinlock_32.h
+++ b/arch/tile/include/asm/spinlock_32.h
@@ -51,9 +51,6 @@ static inline int arch_spin_is_locked(arch_spinlock_t *lock)

void arch_spin_lock(arch_spinlock_t *lock);

-/* We cannot take an interrupt after getting a ticket, so don't enable them. */
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
int arch_spin_trylock(arch_spinlock_t *lock);

static inline void arch_spin_unlock(arch_spinlock_t *lock)
@@ -109,7 +106,4 @@ void arch_read_unlock(arch_rwlock_t *rwlock);
*/
void arch_write_unlock(arch_rwlock_t *rwlock);

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* _ASM_TILE_SPINLOCK_32_H */
diff --git a/arch/tile/include/asm/spinlock_64.h b/arch/tile/include/asm/spinlock_64.h
index c802f48badf4..5b616ef642a8 100644
--- a/arch/tile/include/asm/spinlock_64.h
+++ b/arch/tile/include/asm/spinlock_64.h
@@ -75,9 +75,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
/* Try to get the lock, and return whether we succeeded. */
int arch_spin_trylock(arch_spinlock_t *lock);

-/* We cannot take an interrupt after getting a ticket, so don't enable them. */
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
/*
* Read-write spinlocks, allowing multiple readers
* but only one writer.
@@ -138,7 +135,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
return 0;
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* _ASM_TILE_SPINLOCK_64_H */
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index a558c187f20c..c6a6adf0a5c5 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -41,7 +41,4 @@

#include <asm/qrwlock.h>

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* _ASM_X86_SPINLOCK_H */
diff --git a/arch/xtensa/include/asm/spinlock.h b/arch/xtensa/include/asm/spinlock.h
index d005af51e2e1..c6e1290dcbb7 100644
--- a/arch/xtensa/include/asm/spinlock.h
+++ b/arch/xtensa/include/asm/spinlock.h
@@ -33,8 +33,6 @@

#define arch_spin_is_locked(x) ((x)->slock != 0)

-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
static inline void arch_spin_lock(arch_spinlock_t *lock)
{
unsigned long tmp;
@@ -198,7 +196,4 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
: "memory");
}

-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
#endif /* _XTENSA_SPINLOCK_H */
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index 66260777d644..b37b4ad7eb94 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -121,6 +121,5 @@ static __always_inline bool virt_spin_lock(struct qspinlock *lock)
#define arch_spin_lock(l) queued_spin_lock(l)
#define arch_spin_trylock(l) queued_spin_trylock(l)
#define arch_spin_unlock(l) queued_spin_unlock(l)
-#define arch_spin_lock_flags(l, f) queued_spin_lock(l)

#endif /* __ASM_GENERIC_QSPINLOCK_H */
diff --git a/include/linux/rwlock.h b/include/linux/rwlock.h
index 766c5ca5cbd1..3dcd617e65ae 100644
--- a/include/linux/rwlock.h
+++ b/include/linux/rwlock.h
@@ -38,6 +38,15 @@ do { \
extern int do_raw_write_trylock(rwlock_t *lock);
extern void do_raw_write_unlock(rwlock_t *lock) __releases(lock);
#else
+
+#ifndef arch_read_lock_flags
+# define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
+#endif
+
+#ifndef arch_write_lock_flags
+# define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
+#endif
+
# define do_raw_read_lock(rwlock) do {__acquire(lock); arch_read_lock(&(rwlock)->raw_lock); } while (0)
# define do_raw_read_lock_flags(lock, flags) \
do {__acquire(lock); arch_read_lock_flags(&(lock)->raw_lock, *(flags)); } while (0)
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 1e3e48041800..4e202b00dd66 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -165,6 +165,10 @@ static inline void do_raw_spin_lock(raw_spinlock_t *lock) __acquires(lock)
arch_spin_lock(&lock->raw_lock);
}

+#ifndef arch_spin_lock_flags
+#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
+#endif
+
static inline void
do_raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long *flags) __acquires(lock)
{
diff --git a/include/linux/spinlock_up.h b/include/linux/spinlock_up.h
index 901cf8f44388..0ac9112c1bbe 100644
--- a/include/linux/spinlock_up.h
+++ b/include/linux/spinlock_up.h
@@ -32,14 +32,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
barrier();
}

-static inline void
-arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
-{
- local_irq_save(flags);
- lock->slock = 0;
- barrier();
-}
-
static inline int arch_spin_trylock(arch_spinlock_t *lock)
{
char oldval = lock->slock;
--
2.1.4
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