From: tip-bot for Dmitry Vyukov <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org,
will.deacon@arm.com, mark.rutland@arm.com,
akpm@linux-foundation.org, torvalds@linux-foundation.org,
mingo@kernel.org, dvyukov@google.com, hpa@zytor.com,
peterz@infradead.org, aryabinin@virtuozzo.com
Subject: [tip:locking/core] locking/atomic/x86: Switch atomic.h to use atomic-instrumented.h
Date: Mon, 12 Mar 2018 05:24:10 -0700 [thread overview]
Message-ID: <tip-8bf705d130396e69c04cd8e6e010244ad2ce71f4@git.kernel.org> (raw)
In-Reply-To: <54f0eb64260b84199e538652e079a89b5423ad41.1517246437.git.dvyukov@google.com>
Commit-ID: 8bf705d130396e69c04cd8e6e010244ad2ce71f4
Gitweb: https://git.kernel.org/tip/8bf705d130396e69c04cd8e6e010244ad2ce71f4
Author: Dmitry Vyukov <dvyukov@google.com>
AuthorDate: Mon, 29 Jan 2018 18:26:05 +0100
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Mon, 12 Mar 2018 12:15:35 +0100
locking/atomic/x86: Switch atomic.h to use atomic-instrumented.h
Add arch_ prefix to all atomic operations and include
<asm-generic/atomic-instrumented.h>. This will allow
to add KASAN instrumentation to all atomic ops.
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: kasan-dev@googlegroups.com
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/54f0eb64260b84199e538652e079a89b5423ad41.1517246437.git.dvyukov@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/include/asm/atomic.h | 102 ++++++++++++++++++-----------------
arch/x86/include/asm/atomic64_32.h | 106 ++++++++++++++++++------------------
arch/x86/include/asm/atomic64_64.h | 108 ++++++++++++++++++-------------------
arch/x86/include/asm/cmpxchg.h | 12 ++---
arch/x86/include/asm/cmpxchg_32.h | 8 +--
arch/x86/include/asm/cmpxchg_64.h | 4 +-
6 files changed, 172 insertions(+), 168 deletions(-)
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index 72759f131cc5..33afc966d6a9 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -17,36 +17,36 @@
#define ATOMIC_INIT(i) { (i) }
/**
- * atomic_read - read atomic variable
+ * arch_atomic_read - read atomic variable
* @v: pointer of type atomic_t
*
* Atomically reads the value of @v.
*/
-static __always_inline int atomic_read(const atomic_t *v)
+static __always_inline int arch_atomic_read(const atomic_t *v)
{
return READ_ONCE((v)->counter);
}
/**
- * atomic_set - set atomic variable
+ * arch_atomic_set - set atomic variable
* @v: pointer of type atomic_t
* @i: required value
*
* Atomically sets the value of @v to @i.
*/
-static __always_inline void atomic_set(atomic_t *v, int i)
+static __always_inline void arch_atomic_set(atomic_t *v, int i)
{
WRITE_ONCE(v->counter, i);
}
/**
- * atomic_add - add integer to atomic variable
+ * arch_atomic_add - add integer to atomic variable
* @i: integer value to add
* @v: pointer of type atomic_t
*
* Atomically adds @i to @v.
*/
-static __always_inline void atomic_add(int i, atomic_t *v)
+static __always_inline void arch_atomic_add(int i, atomic_t *v)
{
asm volatile(LOCK_PREFIX "addl %1,%0"
: "+m" (v->counter)
@@ -54,13 +54,13 @@ static __always_inline void atomic_add(int i, atomic_t *v)
}
/**
- * atomic_sub - subtract integer from atomic variable
+ * arch_atomic_sub - subtract integer from atomic variable
* @i: integer value to subtract
* @v: pointer of type atomic_t
*
* Atomically subtracts @i from @v.
*/
-static __always_inline void atomic_sub(int i, atomic_t *v)
+static __always_inline void arch_atomic_sub(int i, atomic_t *v)
{
asm volatile(LOCK_PREFIX "subl %1,%0"
: "+m" (v->counter)
@@ -68,7 +68,7 @@ static __always_inline void atomic_sub(int i, atomic_t *v)
}
/**
- * atomic_sub_and_test - subtract value from variable and test result
+ * arch_atomic_sub_and_test - subtract value from variable and test result
* @i: integer value to subtract
* @v: pointer of type atomic_t
*
@@ -76,63 +76,63 @@ static __always_inline void atomic_sub(int i, atomic_t *v)
* true if the result is zero, or false for all
* other cases.
*/
-static __always_inline bool atomic_sub_and_test(int i, atomic_t *v)
+static __always_inline bool arch_atomic_sub_and_test(int i, atomic_t *v)
{
GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", e);
}
/**
- * atomic_inc - increment atomic variable
+ * arch_atomic_inc - increment atomic variable
* @v: pointer of type atomic_t
*
* Atomically increments @v by 1.
*/
-static __always_inline void atomic_inc(atomic_t *v)
+static __always_inline void arch_atomic_inc(atomic_t *v)
{
asm volatile(LOCK_PREFIX "incl %0"
: "+m" (v->counter));
}
/**
- * atomic_dec - decrement atomic variable
+ * arch_atomic_dec - decrement atomic variable
* @v: pointer of type atomic_t
*
* Atomically decrements @v by 1.
*/
-static __always_inline void atomic_dec(atomic_t *v)
+static __always_inline void arch_atomic_dec(atomic_t *v)
{
asm volatile(LOCK_PREFIX "decl %0"
: "+m" (v->counter));
}
/**
- * atomic_dec_and_test - decrement and test
+ * arch_atomic_dec_and_test - decrement and test
* @v: pointer of type atomic_t
*
* Atomically decrements @v by 1 and
* returns true if the result is 0, or false for all other
* cases.
*/
-static __always_inline bool atomic_dec_and_test(atomic_t *v)
+static __always_inline bool arch_atomic_dec_and_test(atomic_t *v)
{
GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, "%0", e);
}
/**
- * atomic_inc_and_test - increment and test
+ * arch_atomic_inc_and_test - increment and test
* @v: pointer of type atomic_t
*
* Atomically increments @v by 1
* and returns true if the result is zero, or false for all
* other cases.
*/
-static __always_inline bool atomic_inc_and_test(atomic_t *v)
+static __always_inline bool arch_atomic_inc_and_test(atomic_t *v)
{
GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, "%0", e);
}
/**
- * atomic_add_negative - add and test if negative
+ * arch_atomic_add_negative - add and test if negative
* @i: integer value to add
* @v: pointer of type atomic_t
*
@@ -140,65 +140,65 @@ static __always_inline bool atomic_inc_and_test(atomic_t *v)
* if the result is negative, or false when
* result is greater than or equal to zero.
*/
-static __always_inline bool atomic_add_negative(int i, atomic_t *v)
+static __always_inline bool arch_atomic_add_negative(int i, atomic_t *v)
{
GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", s);
}
/**
- * atomic_add_return - add integer and return
+ * arch_atomic_add_return - add integer and return
* @i: integer value to add
* @v: pointer of type atomic_t
*
* Atomically adds @i to @v and returns @i + @v
*/
-static __always_inline int atomic_add_return(int i, atomic_t *v)
+static __always_inline int arch_atomic_add_return(int i, atomic_t *v)
{
return i + xadd(&v->counter, i);
}
/**
- * atomic_sub_return - subtract integer and return
+ * arch_atomic_sub_return - subtract integer and return
* @v: pointer of type atomic_t
* @i: integer value to subtract
*
* Atomically subtracts @i from @v and returns @v - @i
*/
-static __always_inline int atomic_sub_return(int i, atomic_t *v)
+static __always_inline int arch_atomic_sub_return(int i, atomic_t *v)
{
- return atomic_add_return(-i, v);
+ return arch_atomic_add_return(-i, v);
}
-#define atomic_inc_return(v) (atomic_add_return(1, v))
-#define atomic_dec_return(v) (atomic_sub_return(1, v))
+#define arch_atomic_inc_return(v) (arch_atomic_add_return(1, v))
+#define arch_atomic_dec_return(v) (arch_atomic_sub_return(1, v))
-static __always_inline int atomic_fetch_add(int i, atomic_t *v)
+static __always_inline int arch_atomic_fetch_add(int i, atomic_t *v)
{
return xadd(&v->counter, i);
}
-static __always_inline int atomic_fetch_sub(int i, atomic_t *v)
+static __always_inline int arch_atomic_fetch_sub(int i, atomic_t *v)
{
return xadd(&v->counter, -i);
}
-static __always_inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+static __always_inline int arch_atomic_cmpxchg(atomic_t *v, int old, int new)
{
- return cmpxchg(&v->counter, old, new);
+ return arch_cmpxchg(&v->counter, old, new);
}
-#define atomic_try_cmpxchg atomic_try_cmpxchg
-static __always_inline bool atomic_try_cmpxchg(atomic_t *v, int *old, int new)
+#define arch_atomic_try_cmpxchg arch_atomic_try_cmpxchg
+static __always_inline bool arch_atomic_try_cmpxchg(atomic_t *v, int *old, int new)
{
return try_cmpxchg(&v->counter, old, new);
}
-static inline int atomic_xchg(atomic_t *v, int new)
+static inline int arch_atomic_xchg(atomic_t *v, int new)
{
return xchg(&v->counter, new);
}
-static inline void atomic_and(int i, atomic_t *v)
+static inline void arch_atomic_and(int i, atomic_t *v)
{
asm volatile(LOCK_PREFIX "andl %1,%0"
: "+m" (v->counter)
@@ -206,16 +206,16 @@ static inline void atomic_and(int i, atomic_t *v)
: "memory");
}
-static inline int atomic_fetch_and(int i, atomic_t *v)
+static inline int arch_atomic_fetch_and(int i, atomic_t *v)
{
- int val = atomic_read(v);
+ int val = arch_atomic_read(v);
- do { } while (!atomic_try_cmpxchg(v, &val, val & i));
+ do { } while (!arch_atomic_try_cmpxchg(v, &val, val & i));
return val;
}
-static inline void atomic_or(int i, atomic_t *v)
+static inline void arch_atomic_or(int i, atomic_t *v)
{
asm volatile(LOCK_PREFIX "orl %1,%0"
: "+m" (v->counter)
@@ -223,16 +223,16 @@ static inline void atomic_or(int i, atomic_t *v)
: "memory");
}
-static inline int atomic_fetch_or(int i, atomic_t *v)
+static inline int arch_atomic_fetch_or(int i, atomic_t *v)
{
- int val = atomic_read(v);
+ int val = arch_atomic_read(v);
- do { } while (!atomic_try_cmpxchg(v, &val, val | i));
+ do { } while (!arch_atomic_try_cmpxchg(v, &val, val | i));
return val;
}
-static inline void atomic_xor(int i, atomic_t *v)
+static inline void arch_atomic_xor(int i, atomic_t *v)
{
asm volatile(LOCK_PREFIX "xorl %1,%0"
: "+m" (v->counter)
@@ -240,17 +240,17 @@ static inline void atomic_xor(int i, atomic_t *v)
: "memory");
}
-static inline int atomic_fetch_xor(int i, atomic_t *v)
+static inline int arch_atomic_fetch_xor(int i, atomic_t *v)
{
- int val = atomic_read(v);
+ int val = arch_atomic_read(v);
- do { } while (!atomic_try_cmpxchg(v, &val, val ^ i));
+ do { } while (!arch_atomic_try_cmpxchg(v, &val, val ^ i));
return val;
}
/**
- * __atomic_add_unless - add unless the number is already a given value
+ * __arch_atomic_add_unless - add unless the number is already a given value
* @v: pointer of type atomic_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
@@ -258,14 +258,14 @@ static inline int atomic_fetch_xor(int i, atomic_t *v)
* Atomically adds @a to @v, so long as @v was not already @u.
* Returns the old value of @v.
*/
-static __always_inline int __atomic_add_unless(atomic_t *v, int a, int u)
+static __always_inline int __arch_atomic_add_unless(atomic_t *v, int a, int u)
{
- int c = atomic_read(v);
+ int c = arch_atomic_read(v);
do {
if (unlikely(c == u))
break;
- } while (!atomic_try_cmpxchg(v, &c, c + a));
+ } while (!arch_atomic_try_cmpxchg(v, &c, c + a));
return c;
}
@@ -276,4 +276,6 @@ static __always_inline int __atomic_add_unless(atomic_t *v, int a, int u)
# include <asm/atomic64_64.h>
#endif
+#include <asm-generic/atomic-instrumented.h>
+
#endif /* _ASM_X86_ATOMIC_H */
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index 97c46b8169b7..46e1ef17d92d 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -62,7 +62,7 @@ ATOMIC64_DECL(add_unless);
#undef ATOMIC64_EXPORT
/**
- * atomic64_cmpxchg - cmpxchg atomic64 variable
+ * arch_atomic64_cmpxchg - cmpxchg atomic64 variable
* @v: pointer to type atomic64_t
* @o: expected value
* @n: new value
@@ -71,20 +71,21 @@ ATOMIC64_DECL(add_unless);
* the old value.
*/
-static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n)
+static inline long long arch_atomic64_cmpxchg(atomic64_t *v, long long o,
+ long long n)
{
- return cmpxchg64(&v->counter, o, n);
+ return arch_cmpxchg64(&v->counter, o, n);
}
/**
- * atomic64_xchg - xchg atomic64 variable
+ * arch_atomic64_xchg - xchg atomic64 variable
* @v: pointer to type atomic64_t
* @n: value to assign
*
* Atomically xchgs the value of @v to @n and returns
* the old value.
*/
-static inline long long atomic64_xchg(atomic64_t *v, long long n)
+static inline long long arch_atomic64_xchg(atomic64_t *v, long long n)
{
long long o;
unsigned high = (unsigned)(n >> 32);
@@ -96,13 +97,13 @@ static inline long long atomic64_xchg(atomic64_t *v, long long n)
}
/**
- * atomic64_set - set atomic64 variable
+ * arch_atomic64_set - set atomic64 variable
* @v: pointer to type atomic64_t
* @i: value to assign
*
* Atomically sets the value of @v to @n.
*/
-static inline void atomic64_set(atomic64_t *v, long long i)
+static inline void arch_atomic64_set(atomic64_t *v, long long i)
{
unsigned high = (unsigned)(i >> 32);
unsigned low = (unsigned)i;
@@ -112,12 +113,12 @@ static inline void atomic64_set(atomic64_t *v, long long i)
}
/**
- * atomic64_read - read atomic64 variable
+ * arch_atomic64_read - read atomic64 variable
* @v: pointer to type atomic64_t
*
* Atomically reads the value of @v and returns it.
*/
-static inline long long atomic64_read(const atomic64_t *v)
+static inline long long arch_atomic64_read(const atomic64_t *v)
{
long long r;
alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
@@ -125,13 +126,13 @@ static inline long long atomic64_read(const atomic64_t *v)
}
/**
- * atomic64_add_return - add and return
+ * arch_atomic64_add_return - add and return
* @i: integer value to add
* @v: pointer to type atomic64_t
*
* Atomically adds @i to @v and returns @i + *@v
*/
-static inline long long atomic64_add_return(long long i, atomic64_t *v)
+static inline long long arch_atomic64_add_return(long long i, atomic64_t *v)
{
alternative_atomic64(add_return,
ASM_OUTPUT2("+A" (i), "+c" (v)),
@@ -142,7 +143,7 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
/*
* Other variants with different arithmetic operators:
*/
-static inline long long atomic64_sub_return(long long i, atomic64_t *v)
+static inline long long arch_atomic64_sub_return(long long i, atomic64_t *v)
{
alternative_atomic64(sub_return,
ASM_OUTPUT2("+A" (i), "+c" (v)),
@@ -150,7 +151,7 @@ static inline long long atomic64_sub_return(long long i, atomic64_t *v)
return i;
}
-static inline long long atomic64_inc_return(atomic64_t *v)
+static inline long long arch_atomic64_inc_return(atomic64_t *v)
{
long long a;
alternative_atomic64(inc_return, "=&A" (a),
@@ -158,7 +159,7 @@ static inline long long atomic64_inc_return(atomic64_t *v)
return a;
}
-static inline long long atomic64_dec_return(atomic64_t *v)
+static inline long long arch_atomic64_dec_return(atomic64_t *v)
{
long long a;
alternative_atomic64(dec_return, "=&A" (a),
@@ -167,13 +168,13 @@ static inline long long atomic64_dec_return(atomic64_t *v)
}
/**
- * atomic64_add - add integer to atomic64 variable
+ * arch_atomic64_add - add integer to atomic64 variable
* @i: integer value to add
* @v: pointer to type atomic64_t
*
* Atomically adds @i to @v.
*/
-static inline long long atomic64_add(long long i, atomic64_t *v)
+static inline long long arch_atomic64_add(long long i, atomic64_t *v)
{
__alternative_atomic64(add, add_return,
ASM_OUTPUT2("+A" (i), "+c" (v)),
@@ -182,13 +183,13 @@ static inline long long atomic64_add(long long i, atomic64_t *v)
}
/**
- * atomic64_sub - subtract the atomic64 variable
+ * arch_atomic64_sub - subtract the atomic64 variable
* @i: integer value to subtract
* @v: pointer to type atomic64_t
*
* Atomically subtracts @i from @v.
*/
-static inline long long atomic64_sub(long long i, atomic64_t *v)
+static inline long long arch_atomic64_sub(long long i, atomic64_t *v)
{
__alternative_atomic64(sub, sub_return,
ASM_OUTPUT2("+A" (i), "+c" (v)),
@@ -197,7 +198,7 @@ static inline long long atomic64_sub(long long i, atomic64_t *v)
}
/**
- * atomic64_sub_and_test - subtract value from variable and test result
+ * arch_atomic64_sub_and_test - subtract value from variable and test result
* @i: integer value to subtract
* @v: pointer to type atomic64_t
*
@@ -205,46 +206,46 @@ static inline long long atomic64_sub(long long i, atomic64_t *v)
* true if the result is zero, or false for all
* other cases.
*/
-static inline int atomic64_sub_and_test(long long i, atomic64_t *v)
+static inline int arch_atomic64_sub_and_test(long long i, atomic64_t *v)
{
- return atomic64_sub_return(i, v) == 0;
+ return arch_atomic64_sub_return(i, v) == 0;
}
/**
- * atomic64_inc - increment atomic64 variable
+ * arch_atomic64_inc - increment atomic64 variable
* @v: pointer to type atomic64_t
*
* Atomically increments @v by 1.
*/
-static inline void atomic64_inc(atomic64_t *v)
+static inline void arch_atomic64_inc(atomic64_t *v)
{
__alternative_atomic64(inc, inc_return, /* no output */,
"S" (v) : "memory", "eax", "ecx", "edx");
}
/**
- * atomic64_dec - decrement atomic64 variable
+ * arch_atomic64_dec - decrement atomic64 variable
* @v: pointer to type atomic64_t
*
* Atomically decrements @v by 1.
*/
-static inline void atomic64_dec(atomic64_t *v)
+static inline void arch_atomic64_dec(atomic64_t *v)
{
__alternative_atomic64(dec, dec_return, /* no output */,
"S" (v) : "memory", "eax", "ecx", "edx");
}
/**
- * atomic64_dec_and_test - decrement and test
+ * arch_atomic64_dec_and_test - decrement and test
* @v: pointer to type atomic64_t
*
* Atomically decrements @v by 1 and
* returns true if the result is 0, or false for all other
* cases.
*/
-static inline int atomic64_dec_and_test(atomic64_t *v)
+static inline int arch_atomic64_dec_and_test(atomic64_t *v)
{
- return atomic64_dec_return(v) == 0;
+ return arch_atomic64_dec_return(v) == 0;
}
/**
@@ -255,13 +256,13 @@ static inline int atomic64_dec_and_test(atomic64_t *v)
* and returns true if the result is zero, or false for all
* other cases.
*/
-static inline int atomic64_inc_and_test(atomic64_t *v)
+static inline int arch_atomic64_inc_and_test(atomic64_t *v)
{
- return atomic64_inc_return(v) == 0;
+ return arch_atomic64_inc_return(v) == 0;
}
/**
- * atomic64_add_negative - add and test if negative
+ * arch_atomic64_add_negative - add and test if negative
* @i: integer value to add
* @v: pointer to type atomic64_t
*
@@ -269,13 +270,13 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
* if the result is negative, or false when
* result is greater than or equal to zero.
*/
-static inline int atomic64_add_negative(long long i, atomic64_t *v)
+static inline int arch_atomic64_add_negative(long long i, atomic64_t *v)
{
- return atomic64_add_return(i, v) < 0;
+ return arch_atomic64_add_return(i, v) < 0;
}
/**
- * atomic64_add_unless - add unless the number is a given value
+ * arch_atomic64_add_unless - add unless the number is a given value
* @v: pointer of type atomic64_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
@@ -283,7 +284,8 @@ static inline int atomic64_add_negative(long long i, atomic64_t *v)
* Atomically adds @a to @v, so long as it was not @u.
* Returns non-zero if the add was done, zero otherwise.
*/
-static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
+static inline int arch_atomic64_add_unless(atomic64_t *v, long long a,
+ long long u)
{
unsigned low = (unsigned)u;
unsigned high = (unsigned)(u >> 32);
@@ -294,7 +296,7 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
}
-static inline int atomic64_inc_not_zero(atomic64_t *v)
+static inline int arch_atomic64_inc_not_zero(atomic64_t *v)
{
int r;
alternative_atomic64(inc_not_zero, "=&a" (r),
@@ -302,7 +304,7 @@ static inline int atomic64_inc_not_zero(atomic64_t *v)
return r;
}
-static inline long long atomic64_dec_if_positive(atomic64_t *v)
+static inline long long arch_atomic64_dec_if_positive(atomic64_t *v)
{
long long r;
alternative_atomic64(dec_if_positive, "=&A" (r),
@@ -313,70 +315,70 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
#undef alternative_atomic64
#undef __alternative_atomic64
-static inline void atomic64_and(long long i, atomic64_t *v)
+static inline void arch_atomic64_and(long long i, atomic64_t *v)
{
long long old, c = 0;
- while ((old = atomic64_cmpxchg(v, c, c & i)) != c)
+ while ((old = arch_atomic64_cmpxchg(v, c, c & i)) != c)
c = old;
}
-static inline long long atomic64_fetch_and(long long i, atomic64_t *v)
+static inline long long arch_atomic64_fetch_and(long long i, atomic64_t *v)
{
long long old, c = 0;
- while ((old = atomic64_cmpxchg(v, c, c & i)) != c)
+ while ((old = arch_atomic64_cmpxchg(v, c, c & i)) != c)
c = old;
return old;
}
-static inline void atomic64_or(long long i, atomic64_t *v)
+static inline void arch_atomic64_or(long long i, atomic64_t *v)
{
long long old, c = 0;
- while ((old = atomic64_cmpxchg(v, c, c | i)) != c)
+ while ((old = arch_atomic64_cmpxchg(v, c, c | i)) != c)
c = old;
}
-static inline long long atomic64_fetch_or(long long i, atomic64_t *v)
+static inline long long arch_atomic64_fetch_or(long long i, atomic64_t *v)
{
long long old, c = 0;
- while ((old = atomic64_cmpxchg(v, c, c | i)) != c)
+ while ((old = arch_atomic64_cmpxchg(v, c, c | i)) != c)
c = old;
return old;
}
-static inline void atomic64_xor(long long i, atomic64_t *v)
+static inline void arch_atomic64_xor(long long i, atomic64_t *v)
{
long long old, c = 0;
- while ((old = atomic64_cmpxchg(v, c, c ^ i)) != c)
+ while ((old = arch_atomic64_cmpxchg(v, c, c ^ i)) != c)
c = old;
}
-static inline long long atomic64_fetch_xor(long long i, atomic64_t *v)
+static inline long long arch_atomic64_fetch_xor(long long i, atomic64_t *v)
{
long long old, c = 0;
- while ((old = atomic64_cmpxchg(v, c, c ^ i)) != c)
+ while ((old = arch_atomic64_cmpxchg(v, c, c ^ i)) != c)
c = old;
return old;
}
-static inline long long atomic64_fetch_add(long long i, atomic64_t *v)
+static inline long long arch_atomic64_fetch_add(long long i, atomic64_t *v)
{
long long old, c = 0;
- while ((old = atomic64_cmpxchg(v, c, c + i)) != c)
+ while ((old = arch_atomic64_cmpxchg(v, c, c + i)) != c)
c = old;
return old;
}
-#define atomic64_fetch_sub(i, v) atomic64_fetch_add(-(i), (v))
+#define arch_atomic64_fetch_sub(i, v) arch_atomic64_fetch_add(-(i), (v))
#endif /* _ASM_X86_ATOMIC64_32_H */
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 738495caf05f..6106b59d3260 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -11,37 +11,37 @@
#define ATOMIC64_INIT(i) { (i) }
/**
- * atomic64_read - read atomic64 variable
+ * arch_atomic64_read - read atomic64 variable
* @v: pointer of type atomic64_t
*
* Atomically reads the value of @v.
* Doesn't imply a read memory barrier.
*/
-static inline long atomic64_read(const atomic64_t *v)
+static inline long arch_atomic64_read(const atomic64_t *v)
{
return READ_ONCE((v)->counter);
}
/**
- * atomic64_set - set atomic64 variable
+ * arch_atomic64_set - set atomic64 variable
* @v: pointer to type atomic64_t
* @i: required value
*
* Atomically sets the value of @v to @i.
*/
-static inline void atomic64_set(atomic64_t *v, long i)
+static inline void arch_atomic64_set(atomic64_t *v, long i)
{
WRITE_ONCE(v->counter, i);
}
/**
- * atomic64_add - add integer to atomic64 variable
+ * arch_atomic64_add - add integer to atomic64 variable
* @i: integer value to add
* @v: pointer to type atomic64_t
*
* Atomically adds @i to @v.
*/
-static __always_inline void atomic64_add(long i, atomic64_t *v)
+static __always_inline void arch_atomic64_add(long i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "addq %1,%0"
: "=m" (v->counter)
@@ -49,13 +49,13 @@ static __always_inline void atomic64_add(long i, atomic64_t *v)
}
/**
- * atomic64_sub - subtract the atomic64 variable
+ * arch_atomic64_sub - subtract the atomic64 variable
* @i: integer value to subtract
* @v: pointer to type atomic64_t
*
* Atomically subtracts @i from @v.
*/
-static inline void atomic64_sub(long i, atomic64_t *v)
+static inline void arch_atomic64_sub(long i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "subq %1,%0"
: "=m" (v->counter)
@@ -63,7 +63,7 @@ static inline void atomic64_sub(long i, atomic64_t *v)
}
/**
- * atomic64_sub_and_test - subtract value from variable and test result
+ * arch_atomic64_sub_and_test - subtract value from variable and test result
* @i: integer value to subtract
* @v: pointer to type atomic64_t
*
@@ -71,18 +71,18 @@ static inline void atomic64_sub(long i, atomic64_t *v)
* true if the result is zero, or false for all
* other cases.
*/
-static inline bool atomic64_sub_and_test(long i, atomic64_t *v)
+static inline bool arch_atomic64_sub_and_test(long i, atomic64_t *v)
{
GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", e);
}
/**
- * atomic64_inc - increment atomic64 variable
+ * arch_atomic64_inc - increment atomic64 variable
* @v: pointer to type atomic64_t
*
* Atomically increments @v by 1.
*/
-static __always_inline void atomic64_inc(atomic64_t *v)
+static __always_inline void arch_atomic64_inc(atomic64_t *v)
{
asm volatile(LOCK_PREFIX "incq %0"
: "=m" (v->counter)
@@ -90,12 +90,12 @@ static __always_inline void atomic64_inc(atomic64_t *v)
}
/**
- * atomic64_dec - decrement atomic64 variable
+ * arch_atomic64_dec - decrement atomic64 variable
* @v: pointer to type atomic64_t
*
* Atomically decrements @v by 1.
*/
-static __always_inline void atomic64_dec(atomic64_t *v)
+static __always_inline void arch_atomic64_dec(atomic64_t *v)
{
asm volatile(LOCK_PREFIX "decq %0"
: "=m" (v->counter)
@@ -103,33 +103,33 @@ static __always_inline void atomic64_dec(atomic64_t *v)
}
/**
- * atomic64_dec_and_test - decrement and test
+ * arch_atomic64_dec_and_test - decrement and test
* @v: pointer to type atomic64_t
*
* Atomically decrements @v by 1 and
* returns true if the result is 0, or false for all other
* cases.
*/
-static inline bool atomic64_dec_and_test(atomic64_t *v)
+static inline bool arch_atomic64_dec_and_test(atomic64_t *v)
{
GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, "%0", e);
}
/**
- * atomic64_inc_and_test - increment and test
+ * arch_atomic64_inc_and_test - increment and test
* @v: pointer to type atomic64_t
*
* Atomically increments @v by 1
* and returns true if the result is zero, or false for all
* other cases.
*/
-static inline bool atomic64_inc_and_test(atomic64_t *v)
+static inline bool arch_atomic64_inc_and_test(atomic64_t *v)
{
GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, "%0", e);
}
/**
- * atomic64_add_negative - add and test if negative
+ * arch_atomic64_add_negative - add and test if negative
* @i: integer value to add
* @v: pointer to type atomic64_t
*
@@ -137,59 +137,59 @@ static inline bool atomic64_inc_and_test(atomic64_t *v)
* if the result is negative, or false when
* result is greater than or equal to zero.
*/
-static inline bool atomic64_add_negative(long i, atomic64_t *v)
+static inline bool arch_atomic64_add_negative(long i, atomic64_t *v)
{
GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", s);
}
/**
- * atomic64_add_return - add and return
+ * arch_atomic64_add_return - add and return
* @i: integer value to add
* @v: pointer to type atomic64_t
*
* Atomically adds @i to @v and returns @i + @v
*/
-static __always_inline long atomic64_add_return(long i, atomic64_t *v)
+static __always_inline long arch_atomic64_add_return(long i, atomic64_t *v)
{
return i + xadd(&v->counter, i);
}
-static inline long atomic64_sub_return(long i, atomic64_t *v)
+static inline long arch_atomic64_sub_return(long i, atomic64_t *v)
{
- return atomic64_add_return(-i, v);
+ return arch_atomic64_add_return(-i, v);
}
-static inline long atomic64_fetch_add(long i, atomic64_t *v)
+static inline long arch_atomic64_fetch_add(long i, atomic64_t *v)
{
return xadd(&v->counter, i);
}
-static inline long atomic64_fetch_sub(long i, atomic64_t *v)
+static inline long arch_atomic64_fetch_sub(long i, atomic64_t *v)
{
return xadd(&v->counter, -i);
}
-#define atomic64_inc_return(v) (atomic64_add_return(1, (v)))
-#define atomic64_dec_return(v) (atomic64_sub_return(1, (v)))
+#define arch_atomic64_inc_return(v) (arch_atomic64_add_return(1, (v)))
+#define arch_atomic64_dec_return(v) (arch_atomic64_sub_return(1, (v)))
-static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
+static inline long arch_atomic64_cmpxchg(atomic64_t *v, long old, long new)
{
- return cmpxchg(&v->counter, old, new);
+ return arch_cmpxchg(&v->counter, old, new);
}
-#define atomic64_try_cmpxchg atomic64_try_cmpxchg
-static __always_inline bool atomic64_try_cmpxchg(atomic64_t *v, s64 *old, long new)
+#define arch_atomic64_try_cmpxchg arch_atomic64_try_cmpxchg
+static __always_inline bool arch_atomic64_try_cmpxchg(atomic64_t *v, s64 *old, long new)
{
return try_cmpxchg(&v->counter, old, new);
}
-static inline long atomic64_xchg(atomic64_t *v, long new)
+static inline long arch_atomic64_xchg(atomic64_t *v, long new)
{
return xchg(&v->counter, new);
}
/**
- * atomic64_add_unless - add unless the number is a given value
+ * arch_atomic64_add_unless - add unless the number is a given value
* @v: pointer of type atomic64_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
@@ -197,37 +197,37 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
* Atomically adds @a to @v, so long as it was not @u.
* Returns the old value of @v.
*/
-static inline bool atomic64_add_unless(atomic64_t *v, long a, long u)
+static inline bool arch_atomic64_add_unless(atomic64_t *v, long a, long u)
{
- s64 c = atomic64_read(v);
+ s64 c = arch_atomic64_read(v);
do {
if (unlikely(c == u))
return false;
- } while (!atomic64_try_cmpxchg(v, &c, c + a));
+ } while (!arch_atomic64_try_cmpxchg(v, &c, c + a));
return true;
}
-#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define arch_atomic64_inc_not_zero(v) arch_atomic64_add_unless((v), 1, 0)
/*
- * atomic64_dec_if_positive - decrement by 1 if old value positive
+ * arch_atomic64_dec_if_positive - decrement by 1 if old value positive
* @v: pointer of type atomic_t
*
* The function returns the old value of *v minus 1, even if
* the atomic variable, v, was not decremented.
*/
-static inline long atomic64_dec_if_positive(atomic64_t *v)
+static inline long arch_atomic64_dec_if_positive(atomic64_t *v)
{
- s64 dec, c = atomic64_read(v);
+ s64 dec, c = arch_atomic64_read(v);
do {
dec = c - 1;
if (unlikely(dec < 0))
break;
- } while (!atomic64_try_cmpxchg(v, &c, dec));
+ } while (!arch_atomic64_try_cmpxchg(v, &c, dec));
return dec;
}
-static inline void atomic64_and(long i, atomic64_t *v)
+static inline void arch_atomic64_and(long i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "andq %1,%0"
: "+m" (v->counter)
@@ -235,16 +235,16 @@ static inline void atomic64_and(long i, atomic64_t *v)
: "memory");
}
-static inline long atomic64_fetch_and(long i, atomic64_t *v)
+static inline long arch_atomic64_fetch_and(long i, atomic64_t *v)
{
- s64 val = atomic64_read(v);
+ s64 val = arch_atomic64_read(v);
do {
- } while (!atomic64_try_cmpxchg(v, &val, val & i));
+ } while (!arch_atomic64_try_cmpxchg(v, &val, val & i));
return val;
}
-static inline void atomic64_or(long i, atomic64_t *v)
+static inline void arch_atomic64_or(long i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "orq %1,%0"
: "+m" (v->counter)
@@ -252,16 +252,16 @@ static inline void atomic64_or(long i, atomic64_t *v)
: "memory");
}
-static inline long atomic64_fetch_or(long i, atomic64_t *v)
+static inline long arch_atomic64_fetch_or(long i, atomic64_t *v)
{
- s64 val = atomic64_read(v);
+ s64 val = arch_atomic64_read(v);
do {
- } while (!atomic64_try_cmpxchg(v, &val, val | i));
+ } while (!arch_atomic64_try_cmpxchg(v, &val, val | i));
return val;
}
-static inline void atomic64_xor(long i, atomic64_t *v)
+static inline void arch_atomic64_xor(long i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "xorq %1,%0"
: "+m" (v->counter)
@@ -269,12 +269,12 @@ static inline void atomic64_xor(long i, atomic64_t *v)
: "memory");
}
-static inline long atomic64_fetch_xor(long i, atomic64_t *v)
+static inline long arch_atomic64_fetch_xor(long i, atomic64_t *v)
{
- s64 val = atomic64_read(v);
+ s64 val = arch_atomic64_read(v);
do {
- } while (!atomic64_try_cmpxchg(v, &val, val ^ i));
+ } while (!arch_atomic64_try_cmpxchg(v, &val, val ^ i));
return val;
}
diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
index 56bd436ed01b..e3efd8a06066 100644
--- a/arch/x86/include/asm/cmpxchg.h
+++ b/arch/x86/include/asm/cmpxchg.h
@@ -145,13 +145,13 @@ extern void __add_wrong_size(void)
# include <asm/cmpxchg_64.h>
#endif
-#define cmpxchg(ptr, old, new) \
+#define arch_cmpxchg(ptr, old, new) \
__cmpxchg(ptr, old, new, sizeof(*(ptr)))
-#define sync_cmpxchg(ptr, old, new) \
+#define arch_sync_cmpxchg(ptr, old, new) \
__sync_cmpxchg(ptr, old, new, sizeof(*(ptr)))
-#define cmpxchg_local(ptr, old, new) \
+#define arch_cmpxchg_local(ptr, old, new) \
__cmpxchg_local(ptr, old, new, sizeof(*(ptr)))
@@ -221,7 +221,7 @@ extern void __add_wrong_size(void)
#define __try_cmpxchg(ptr, pold, new, size) \
__raw_try_cmpxchg((ptr), (pold), (new), (size), LOCK_PREFIX)
-#define try_cmpxchg(ptr, pold, new) \
+#define try_cmpxchg(ptr, pold, new) \
__try_cmpxchg((ptr), (pold), (new), sizeof(*(ptr)))
/*
@@ -250,10 +250,10 @@ extern void __add_wrong_size(void)
__ret; \
})
-#define cmpxchg_double(p1, p2, o1, o2, n1, n2) \
+#define arch_cmpxchg_double(p1, p2, o1, o2, n1, n2) \
__cmpxchg_double(LOCK_PREFIX, p1, p2, o1, o2, n1, n2)
-#define cmpxchg_double_local(p1, p2, o1, o2, n1, n2) \
+#define arch_cmpxchg_double_local(p1, p2, o1, o2, n1, n2) \
__cmpxchg_double(, p1, p2, o1, o2, n1, n2)
#endif /* ASM_X86_CMPXCHG_H */
diff --git a/arch/x86/include/asm/cmpxchg_32.h b/arch/x86/include/asm/cmpxchg_32.h
index 1732704f0445..1a2eafca7038 100644
--- a/arch/x86/include/asm/cmpxchg_32.h
+++ b/arch/x86/include/asm/cmpxchg_32.h
@@ -36,10 +36,10 @@ static inline void set_64bit(volatile u64 *ptr, u64 value)
}
#ifdef CONFIG_X86_CMPXCHG64
-#define cmpxchg64(ptr, o, n) \
+#define arch_cmpxchg64(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg64((ptr), (unsigned long long)(o), \
(unsigned long long)(n)))
-#define cmpxchg64_local(ptr, o, n) \
+#define arch_cmpxchg64_local(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg64_local((ptr), (unsigned long long)(o), \
(unsigned long long)(n)))
#endif
@@ -76,7 +76,7 @@ static inline u64 __cmpxchg64_local(volatile u64 *ptr, u64 old, u64 new)
* to simulate the cmpxchg8b on the 80386 and 80486 CPU.
*/
-#define cmpxchg64(ptr, o, n) \
+#define arch_cmpxchg64(ptr, o, n) \
({ \
__typeof__(*(ptr)) __ret; \
__typeof__(*(ptr)) __old = (o); \
@@ -93,7 +93,7 @@ static inline u64 __cmpxchg64_local(volatile u64 *ptr, u64 old, u64 new)
__ret; })
-#define cmpxchg64_local(ptr, o, n) \
+#define arch_cmpxchg64_local(ptr, o, n) \
({ \
__typeof__(*(ptr)) __ret; \
__typeof__(*(ptr)) __old = (o); \
diff --git a/arch/x86/include/asm/cmpxchg_64.h b/arch/x86/include/asm/cmpxchg_64.h
index 03cad196a301..bfca3b346c74 100644
--- a/arch/x86/include/asm/cmpxchg_64.h
+++ b/arch/x86/include/asm/cmpxchg_64.h
@@ -7,13 +7,13 @@ static inline void set_64bit(volatile u64 *ptr, u64 val)
*ptr = val;
}
-#define cmpxchg64(ptr, o, n) \
+#define arch_cmpxchg64(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
cmpxchg((ptr), (o), (n)); \
})
-#define cmpxchg64_local(ptr, o, n) \
+#define arch_cmpxchg64_local(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
cmpxchg_local((ptr), (o), (n)); \
next prev parent reply other threads:[~2018-03-12 12:24 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-29 17:26 [PATCH v6 0/4] x86, kasan: add KASAN checks to atomic operations Dmitry Vyukov
2018-01-29 17:26 ` [PATCH v6 1/4] locking/atomic: Add asm-generic/atomic-instrumented.h Dmitry Vyukov
2018-01-29 17:26 ` Dmitry Vyukov
2018-01-29 17:26 ` [PATCH v6 2/4] x86: switch atomic.h to use atomic-instrumented.h Dmitry Vyukov
2018-01-29 17:26 ` Dmitry Vyukov
2018-03-12 12:24 ` tip-bot for Dmitry Vyukov [this message]
2018-01-29 17:26 ` [PATCH v6 3/4] asm-generic: add KASAN instrumentation to atomic operations Dmitry Vyukov
2018-01-29 17:26 ` Dmitry Vyukov
2018-03-12 12:24 ` [tip:locking/core] locking/atomic, asm-generic: Add " tip-bot for Dmitry Vyukov
2018-01-29 17:26 ` [PATCH v6 4/4] asm-generic, x86: add comments for atomic instrumentation Dmitry Vyukov
2018-01-29 17:26 ` Dmitry Vyukov
2018-03-12 12:25 ` [tip:locking/core] locking/atomic, asm-generic, x86: Add " tip-bot for Dmitry Vyukov
2018-01-30 9:23 ` [PATCH v6 0/4] x86, kasan: add KASAN checks to atomic operations Dmitry Vyukov
2018-01-30 9:27 ` Dmitry Vyukov
2018-01-30 15:36 ` Will Deacon
2018-01-31 7:28 ` Ingo Molnar
2018-01-31 8:53 ` Dmitry Vyukov
2018-01-31 16:17 ` Will Deacon
2018-02-07 14:17 ` Dmitry Vyukov
2018-02-20 10:40 ` Dmitry Vyukov
2018-02-26 12:52 ` Dmitry Vyukov
-- strict thread matches above, loose matches on Subject: below --
2017-06-22 14:14 [PATCH v5 1/4] x86: switch atomic.h to use atomic-instrumented.h Dmitry Vyukov
2017-06-23 13:59 ` [tip:locking/core] locking/atomic/x86: Switch " tip-bot for Dmitry Vyukov
2017-06-17 9:15 [PATCH v4 0/7] x86, kasan: add KASAN checks to atomic operations Dmitry Vyukov
2017-06-17 9:15 ` [PATCH v4 1/7] x86: un-macro-ify atomic ops implementation Dmitry Vyukov
2017-06-22 11:04 ` [tip:locking/core] locking/atomic/x86: Un-macro-ify " tip-bot for Dmitry Vyukov
2017-07-25 13:54 ` tip-bot for Dmitry Vyukov
2017-06-17 9:15 ` [PATCH v4 2/7] x86: use s64* for old arg of atomic64_try_cmpxchg() Dmitry Vyukov
2017-06-17 9:15 ` Dmitry Vyukov
2017-06-22 11:04 ` [tip:locking/core] locking/atomic/x86: Use 's64 *' for 'old' argument " tip-bot for Dmitry Vyukov
2017-07-25 13:55 ` tip-bot for Dmitry Vyukov
2017-06-17 9:15 ` [PATCH v4 3/7] asm-generic: add atomic-instrumented.h Dmitry Vyukov
2017-06-17 9:15 ` Dmitry Vyukov
2017-06-19 10:50 ` Mark Rutland
2017-06-19 10:50 ` Mark Rutland
2017-06-22 11:05 ` [tip:locking/core] locking/atomic: Add asm-generic/atomic-instrumented.h tip-bot for Dmitry Vyukov
2018-03-12 12:23 ` [tip:locking/core] locking/atomic, asm-generic: " tip-bot for Dmitry Vyukov
2017-06-17 9:15 ` [PATCH v4 4/7] x86: switch atomic.h to use atomic-instrumented.h Dmitry Vyukov
2017-06-17 9:15 ` Dmitry Vyukov
2017-06-17 9:15 ` [PATCH v4 5/7] kasan: allow kasan_check_read/write() to accept pointers to volatiles Dmitry Vyukov
2017-06-17 9:15 ` Dmitry Vyukov
2017-06-19 10:50 ` Mark Rutland
2017-06-19 10:50 ` Mark Rutland
2017-06-19 13:11 ` Dmitry Vyukov
2017-06-19 13:11 ` Dmitry Vyukov
2017-06-22 8:25 ` Ingo Molnar
2017-06-22 8:25 ` Ingo Molnar
2017-06-22 14:15 ` Dmitry Vyukov
2017-06-22 14:15 ` Dmitry Vyukov
2017-06-17 9:15 ` [PATCH v4 6/7] asm-generic: add KASAN instrumentation to atomic operations Dmitry Vyukov
2017-06-17 9:15 ` Dmitry Vyukov
2017-06-19 10:51 ` Mark Rutland
2017-06-19 10:51 ` Mark Rutland
2017-06-17 9:15 ` [PATCH v4 7/7] asm-generic, x86: add comments for atomic instrumentation Dmitry Vyukov
2017-06-17 9:15 ` Dmitry Vyukov
2017-06-19 10:54 ` Mark Rutland
2017-06-19 10:54 ` Mark Rutland
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