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-rw-r--r--include/linux/percpu.h673
1 files changed, 0 insertions, 673 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 8419053..6f61b61 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -23,32 +23,6 @@
PERCPU_MODULE_RESERVE)
#endif
-/*
- * Must be an lvalue. Since @var must be a simple identifier,
- * we force a syntax error here if it isn't.
- */
-#define get_cpu_var(var) (*({ \
- preempt_disable(); \
- this_cpu_ptr(&var); }))
-
-/*
- * The weird & is necessary because sparse considers (void)(var) to be
- * a direct dereference of percpu variable (var).
- */
-#define put_cpu_var(var) do { \
- (void)&(var); \
- preempt_enable(); \
-} while (0)
-
-#define get_cpu_ptr(var) ({ \
- preempt_disable(); \
- this_cpu_ptr(var); })
-
-#define put_cpu_ptr(var) do { \
- (void)(var); \
- preempt_enable(); \
-} while (0)
-
/* minimum unit size, also is the maximum supported allocation size */
#define PCPU_MIN_UNIT_SIZE PFN_ALIGN(32 << 10)
@@ -140,17 +114,6 @@ extern int __init pcpu_page_first_chunk(size_t reserved_size,
pcpu_fc_populate_pte_fn_t populate_pte_fn);
#endif
-/*
- * Use this to get to a cpu's version of the per-cpu object
- * dynamically allocated. Non-atomic access to the current CPU's
- * version should probably be combined with get_cpu()/put_cpu().
- */
-#ifdef CONFIG_SMP
-#define per_cpu_ptr(ptr, cpu) SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu)))
-#else
-#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR((ptr)); })
-#endif
-
extern void __percpu *__alloc_reserved_percpu(size_t size, size_t align);
extern bool is_kernel_percpu_address(unsigned long addr);
@@ -166,640 +129,4 @@ extern phys_addr_t per_cpu_ptr_to_phys(void *addr);
#define alloc_percpu(type) \
(typeof(type) __percpu *)__alloc_percpu(sizeof(type), __alignof__(type))
-/*
- * Branching function to split up a function into a set of functions that
- * are called for different scalar sizes of the objects handled.
- */
-
-extern void __bad_size_call_parameter(void);
-
-#ifdef CONFIG_DEBUG_PREEMPT
-extern void __this_cpu_preempt_check(const char *op);
-#else
-static inline void __this_cpu_preempt_check(const char *op) { }
-#endif
-
-#define __pcpu_size_call_return(stem, variable) \
-({ typeof(variable) pscr_ret__; \
- __verify_pcpu_ptr(&(variable)); \
- switch(sizeof(variable)) { \
- case 1: pscr_ret__ = stem##1(variable);break; \
- case 2: pscr_ret__ = stem##2(variable);break; \
- case 4: pscr_ret__ = stem##4(variable);break; \
- case 8: pscr_ret__ = stem##8(variable);break; \
- default: \
- __bad_size_call_parameter();break; \
- } \
- pscr_ret__; \
-})
-
-#define __pcpu_size_call_return2(stem, variable, ...) \
-({ \
- typeof(variable) pscr2_ret__; \
- __verify_pcpu_ptr(&(variable)); \
- switch(sizeof(variable)) { \
- case 1: pscr2_ret__ = stem##1(variable, __VA_ARGS__); break; \
- case 2: pscr2_ret__ = stem##2(variable, __VA_ARGS__); break; \
- case 4: pscr2_ret__ = stem##4(variable, __VA_ARGS__); break; \
- case 8: pscr2_ret__ = stem##8(variable, __VA_ARGS__); break; \
- default: \
- __bad_size_call_parameter(); break; \
- } \
- pscr2_ret__; \
-})
-
-/*
- * Special handling for cmpxchg_double. cmpxchg_double is passed two
- * percpu variables. The first has to be aligned to a double word
- * boundary and the second has to follow directly thereafter.
- * We enforce this on all architectures even if they don't support
- * a double cmpxchg instruction, since it's a cheap requirement, and it
- * avoids breaking the requirement for architectures with the instruction.
- */
-#define __pcpu_double_call_return_bool(stem, pcp1, pcp2, ...) \
-({ \
- bool pdcrb_ret__; \
- __verify_pcpu_ptr(&pcp1); \
- BUILD_BUG_ON(sizeof(pcp1) != sizeof(pcp2)); \
- VM_BUG_ON((unsigned long)(&pcp1) % (2 * sizeof(pcp1))); \
- VM_BUG_ON((unsigned long)(&pcp2) != \
- (unsigned long)(&pcp1) + sizeof(pcp1)); \
- switch(sizeof(pcp1)) { \
- case 1: pdcrb_ret__ = stem##1(pcp1, pcp2, __VA_ARGS__); break; \
- case 2: pdcrb_ret__ = stem##2(pcp1, pcp2, __VA_ARGS__); break; \
- case 4: pdcrb_ret__ = stem##4(pcp1, pcp2, __VA_ARGS__); break; \
- case 8: pdcrb_ret__ = stem##8(pcp1, pcp2, __VA_ARGS__); break; \
- default: \
- __bad_size_call_parameter(); break; \
- } \
- pdcrb_ret__; \
-})
-
-#define __pcpu_size_call(stem, variable, ...) \
-do { \
- __verify_pcpu_ptr(&(variable)); \
- switch(sizeof(variable)) { \
- case 1: stem##1(variable, __VA_ARGS__);break; \
- case 2: stem##2(variable, __VA_ARGS__);break; \
- case 4: stem##4(variable, __VA_ARGS__);break; \
- case 8: stem##8(variable, __VA_ARGS__);break; \
- default: \
- __bad_size_call_parameter();break; \
- } \
-} while (0)
-
-/*
- * this_cpu operations (C) 2008-2013 Christoph Lameter <cl@linux.com>
- *
- * Optimized manipulation for memory allocated through the per cpu
- * allocator or for addresses of per cpu variables.
- *
- * These operation guarantee exclusivity of access for other operations
- * on the *same* processor. The assumption is that per cpu data is only
- * accessed by a single processor instance (the current one).
- *
- * The first group is used for accesses that must be done in a
- * preemption safe way since we know that the context is not preempt
- * safe. Interrupts may occur. If the interrupt modifies the variable
- * too then RMW actions will not be reliable.
- *
- * The arch code can provide optimized functions in two ways:
- *
- * 1. Override the function completely. F.e. define this_cpu_add().
- * The arch must then ensure that the various scalar format passed
- * are handled correctly.
- *
- * 2. Provide functions for certain scalar sizes. F.e. provide
- * this_cpu_add_2() to provide per cpu atomic operations for 2 byte
- * sized RMW actions. If arch code does not provide operations for
- * a scalar size then the fallback in the generic code will be
- * used.
- */
-
-#define _this_cpu_generic_read(pcp) \
-({ typeof(pcp) ret__; \
- preempt_disable(); \
- ret__ = *this_cpu_ptr(&(pcp)); \
- preempt_enable(); \
- ret__; \
-})
-
-#ifndef this_cpu_read
-# ifndef this_cpu_read_1
-# define this_cpu_read_1(pcp) _this_cpu_generic_read(pcp)
-# endif
-# ifndef this_cpu_read_2
-# define this_cpu_read_2(pcp) _this_cpu_generic_read(pcp)
-# endif
-# ifndef this_cpu_read_4
-# define this_cpu_read_4(pcp) _this_cpu_generic_read(pcp)
-# endif
-# ifndef this_cpu_read_8
-# define this_cpu_read_8(pcp) _this_cpu_generic_read(pcp)
-# endif
-# define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, (pcp))
-#endif
-
-#define _this_cpu_generic_to_op(pcp, val, op) \
-do { \
- unsigned long flags; \
- raw_local_irq_save(flags); \
- *raw_cpu_ptr(&(pcp)) op val; \
- raw_local_irq_restore(flags); \
-} while (0)
-
-#ifndef this_cpu_write
-# ifndef this_cpu_write_1
-# define this_cpu_write_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), =)
-# endif
-# ifndef this_cpu_write_2
-# define this_cpu_write_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), =)
-# endif
-# ifndef this_cpu_write_4
-# define this_cpu_write_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), =)
-# endif
-# ifndef this_cpu_write_8
-# define this_cpu_write_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), =)
-# endif
-# define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, (pcp), (val))
-#endif
-
-#ifndef this_cpu_add
-# ifndef this_cpu_add_1
-# define this_cpu_add_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# ifndef this_cpu_add_2
-# define this_cpu_add_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# ifndef this_cpu_add_4
-# define this_cpu_add_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# ifndef this_cpu_add_8
-# define this_cpu_add_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# define this_cpu_add(pcp, val) __pcpu_size_call(this_cpu_add_, (pcp), (val))
-#endif
-
-#ifndef this_cpu_sub
-# define this_cpu_sub(pcp, val) this_cpu_add((pcp), -(typeof(pcp))(val))
-#endif
-
-#ifndef this_cpu_inc
-# define this_cpu_inc(pcp) this_cpu_add((pcp), 1)
-#endif
-
-#ifndef this_cpu_dec
-# define this_cpu_dec(pcp) this_cpu_sub((pcp), 1)
-#endif
-
-#ifndef this_cpu_and
-# ifndef this_cpu_and_1
-# define this_cpu_and_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# ifndef this_cpu_and_2
-# define this_cpu_and_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# ifndef this_cpu_and_4
-# define this_cpu_and_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# ifndef this_cpu_and_8
-# define this_cpu_and_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# define this_cpu_and(pcp, val) __pcpu_size_call(this_cpu_and_, (pcp), (val))
-#endif
-
-#ifndef this_cpu_or
-# ifndef this_cpu_or_1
-# define this_cpu_or_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# ifndef this_cpu_or_2
-# define this_cpu_or_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# ifndef this_cpu_or_4
-# define this_cpu_or_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# ifndef this_cpu_or_8
-# define this_cpu_or_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# define this_cpu_or(pcp, val) __pcpu_size_call(this_cpu_or_, (pcp), (val))
-#endif
-
-#define _this_cpu_generic_add_return(pcp, val) \
-({ \
- typeof(pcp) ret__; \
- unsigned long flags; \
- raw_local_irq_save(flags); \
- raw_cpu_add(pcp, val); \
- ret__ = raw_cpu_read(pcp); \
- raw_local_irq_restore(flags); \
- ret__; \
-})
-
-#ifndef this_cpu_add_return
-# ifndef this_cpu_add_return_1
-# define this_cpu_add_return_1(pcp, val) _this_cpu_generic_add_return(pcp, val)
-# endif
-# ifndef this_cpu_add_return_2
-# define this_cpu_add_return_2(pcp, val) _this_cpu_generic_add_return(pcp, val)
-# endif
-# ifndef this_cpu_add_return_4
-# define this_cpu_add_return_4(pcp, val) _this_cpu_generic_add_return(pcp, val)
-# endif
-# ifndef this_cpu_add_return_8
-# define this_cpu_add_return_8(pcp, val) _this_cpu_generic_add_return(pcp, val)
-# endif
-# define this_cpu_add_return(pcp, val) __pcpu_size_call_return2(this_cpu_add_return_, pcp, val)
-#endif
-
-#define this_cpu_sub_return(pcp, val) this_cpu_add_return(pcp, -(typeof(pcp))(val))
-#define this_cpu_inc_return(pcp) this_cpu_add_return(pcp, 1)
-#define this_cpu_dec_return(pcp) this_cpu_add_return(pcp, -1)
-
-#define _this_cpu_generic_xchg(pcp, nval) \
-({ typeof(pcp) ret__; \
- unsigned long flags; \
- raw_local_irq_save(flags); \
- ret__ = raw_cpu_read(pcp); \
- raw_cpu_write(pcp, nval); \
- raw_local_irq_restore(flags); \
- ret__; \
-})
-
-#ifndef this_cpu_xchg
-# ifndef this_cpu_xchg_1
-# define this_cpu_xchg_1(pcp, nval) _this_cpu_generic_xchg(pcp, nval)
-# endif
-# ifndef this_cpu_xchg_2
-# define this_cpu_xchg_2(pcp, nval) _this_cpu_generic_xchg(pcp, nval)
-# endif
-# ifndef this_cpu_xchg_4
-# define this_cpu_xchg_4(pcp, nval) _this_cpu_generic_xchg(pcp, nval)
-# endif
-# ifndef this_cpu_xchg_8
-# define this_cpu_xchg_8(pcp, nval) _this_cpu_generic_xchg(pcp, nval)
-# endif
-# define this_cpu_xchg(pcp, nval) \
- __pcpu_size_call_return2(this_cpu_xchg_, (pcp), nval)
-#endif
-
-#define _this_cpu_generic_cmpxchg(pcp, oval, nval) \
-({ \
- typeof(pcp) ret__; \
- unsigned long flags; \
- raw_local_irq_save(flags); \
- ret__ = raw_cpu_read(pcp); \
- if (ret__ == (oval)) \
- raw_cpu_write(pcp, nval); \
- raw_local_irq_restore(flags); \
- ret__; \
-})
-
-#ifndef this_cpu_cmpxchg
-# ifndef this_cpu_cmpxchg_1
-# define this_cpu_cmpxchg_1(pcp, oval, nval) _this_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# ifndef this_cpu_cmpxchg_2
-# define this_cpu_cmpxchg_2(pcp, oval, nval) _this_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# ifndef this_cpu_cmpxchg_4
-# define this_cpu_cmpxchg_4(pcp, oval, nval) _this_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# ifndef this_cpu_cmpxchg_8
-# define this_cpu_cmpxchg_8(pcp, oval, nval) _this_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# define this_cpu_cmpxchg(pcp, oval, nval) \
- __pcpu_size_call_return2(this_cpu_cmpxchg_, pcp, oval, nval)
-#endif
-
-/*
- * cmpxchg_double replaces two adjacent scalars at once. The first
- * two parameters are per cpu variables which have to be of the same
- * size. A truth value is returned to indicate success or failure
- * (since a double register result is difficult to handle). There is
- * very limited hardware support for these operations, so only certain
- * sizes may work.
- */
-#define _this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \
-({ \
- int ret__; \
- unsigned long flags; \
- raw_local_irq_save(flags); \
- ret__ = raw_cpu_generic_cmpxchg_double(pcp1, pcp2, \
- oval1, oval2, nval1, nval2); \
- raw_local_irq_restore(flags); \
- ret__; \
-})
-
-#ifndef this_cpu_cmpxchg_double
-# ifndef this_cpu_cmpxchg_double_1
-# define this_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- _this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# ifndef this_cpu_cmpxchg_double_2
-# define this_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- _this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# ifndef this_cpu_cmpxchg_double_4
-# define this_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- _this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# ifndef this_cpu_cmpxchg_double_8
-# define this_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- _this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# define this_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- __pcpu_double_call_return_bool(this_cpu_cmpxchg_double_, (pcp1), (pcp2), (oval1), (oval2), (nval1), (nval2))
-#endif
-
-/*
- * Generic percpu operations for contexts where we do not want to do
- * any checks for preemptiosn.
- *
- * If there is no other protection through preempt disable and/or
- * disabling interupts then one of these RMW operations can show unexpected
- * behavior because the execution thread was rescheduled on another processor
- * or an interrupt occurred and the same percpu variable was modified from
- * the interrupt context.
- */
-#ifndef raw_cpu_read
-# ifndef raw_cpu_read_1
-# define raw_cpu_read_1(pcp) (*raw_cpu_ptr(&(pcp)))
-# endif
-# ifndef raw_cpu_read_2
-# define raw_cpu_read_2(pcp) (*raw_cpu_ptr(&(pcp)))
-# endif
-# ifndef raw_cpu_read_4
-# define raw_cpu_read_4(pcp) (*raw_cpu_ptr(&(pcp)))
-# endif
-# ifndef raw_cpu_read_8
-# define raw_cpu_read_8(pcp) (*raw_cpu_ptr(&(pcp)))
-# endif
-# define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, (pcp))
-#endif
-
-#define raw_cpu_generic_to_op(pcp, val, op) \
-do { \
- *raw_cpu_ptr(&(pcp)) op val; \
-} while (0)
-
-
-#ifndef raw_cpu_write
-# ifndef raw_cpu_write_1
-# define raw_cpu_write_1(pcp, val) raw_cpu_generic_to_op((pcp), (val), =)
-# endif
-# ifndef raw_cpu_write_2
-# define raw_cpu_write_2(pcp, val) raw_cpu_generic_to_op((pcp), (val), =)
-# endif
-# ifndef raw_cpu_write_4
-# define raw_cpu_write_4(pcp, val) raw_cpu_generic_to_op((pcp), (val), =)
-# endif
-# ifndef raw_cpu_write_8
-# define raw_cpu_write_8(pcp, val) raw_cpu_generic_to_op((pcp), (val), =)
-# endif
-# define raw_cpu_write(pcp, val) __pcpu_size_call(raw_cpu_write_, (pcp), (val))
-#endif
-
-#ifndef raw_cpu_add
-# ifndef raw_cpu_add_1
-# define raw_cpu_add_1(pcp, val) raw_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# ifndef raw_cpu_add_2
-# define raw_cpu_add_2(pcp, val) raw_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# ifndef raw_cpu_add_4
-# define raw_cpu_add_4(pcp, val) raw_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# ifndef raw_cpu_add_8
-# define raw_cpu_add_8(pcp, val) raw_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# define raw_cpu_add(pcp, val) __pcpu_size_call(raw_cpu_add_, (pcp), (val))
-#endif
-
-#ifndef raw_cpu_sub
-# define raw_cpu_sub(pcp, val) raw_cpu_add((pcp), -(val))
-#endif
-
-#ifndef raw_cpu_inc
-# define raw_cpu_inc(pcp) raw_cpu_add((pcp), 1)
-#endif
-
-#ifndef raw_cpu_dec
-# define raw_cpu_dec(pcp) raw_cpu_sub((pcp), 1)
-#endif
-
-#ifndef raw_cpu_and
-# ifndef raw_cpu_and_1
-# define raw_cpu_and_1(pcp, val) raw_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# ifndef raw_cpu_and_2
-# define raw_cpu_and_2(pcp, val) raw_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# ifndef raw_cpu_and_4
-# define raw_cpu_and_4(pcp, val) raw_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# ifndef raw_cpu_and_8
-# define raw_cpu_and_8(pcp, val) raw_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# define raw_cpu_and(pcp, val) __pcpu_size_call(raw_cpu_and_, (pcp), (val))
-#endif
-
-#ifndef raw_cpu_or
-# ifndef raw_cpu_or_1
-# define raw_cpu_or_1(pcp, val) raw_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# ifndef raw_cpu_or_2
-# define raw_cpu_or_2(pcp, val) raw_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# ifndef raw_cpu_or_4
-# define raw_cpu_or_4(pcp, val) raw_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# ifndef raw_cpu_or_8
-# define raw_cpu_or_8(pcp, val) raw_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# define raw_cpu_or(pcp, val) __pcpu_size_call(raw_cpu_or_, (pcp), (val))
-#endif
-
-#define raw_cpu_generic_add_return(pcp, val) \
-({ \
- raw_cpu_add(pcp, val); \
- raw_cpu_read(pcp); \
-})
-
-#ifndef raw_cpu_add_return
-# ifndef raw_cpu_add_return_1
-# define raw_cpu_add_return_1(pcp, val) raw_cpu_generic_add_return(pcp, val)
-# endif
-# ifndef raw_cpu_add_return_2
-# define raw_cpu_add_return_2(pcp, val) raw_cpu_generic_add_return(pcp, val)
-# endif
-# ifndef raw_cpu_add_return_4
-# define raw_cpu_add_return_4(pcp, val) raw_cpu_generic_add_return(pcp, val)
-# endif
-# ifndef raw_cpu_add_return_8
-# define raw_cpu_add_return_8(pcp, val) raw_cpu_generic_add_return(pcp, val)
-# endif
-# define raw_cpu_add_return(pcp, val) \
- __pcpu_size_call_return2(raw_cpu_add_return_, pcp, val)
-#endif
-
-#define raw_cpu_sub_return(pcp, val) raw_cpu_add_return(pcp, -(typeof(pcp))(val))
-#define raw_cpu_inc_return(pcp) raw_cpu_add_return(pcp, 1)
-#define raw_cpu_dec_return(pcp) raw_cpu_add_return(pcp, -1)
-
-#define raw_cpu_generic_xchg(pcp, nval) \
-({ typeof(pcp) ret__; \
- ret__ = raw_cpu_read(pcp); \
- raw_cpu_write(pcp, nval); \
- ret__; \
-})
-
-#ifndef raw_cpu_xchg
-# ifndef raw_cpu_xchg_1
-# define raw_cpu_xchg_1(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
-# endif
-# ifndef raw_cpu_xchg_2
-# define raw_cpu_xchg_2(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
-# endif
-# ifndef raw_cpu_xchg_4
-# define raw_cpu_xchg_4(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
-# endif
-# ifndef raw_cpu_xchg_8
-# define raw_cpu_xchg_8(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
-# endif
-# define raw_cpu_xchg(pcp, nval) \
- __pcpu_size_call_return2(raw_cpu_xchg_, (pcp), nval)
-#endif
-
-#define raw_cpu_generic_cmpxchg(pcp, oval, nval) \
-({ \
- typeof(pcp) ret__; \
- ret__ = raw_cpu_read(pcp); \
- if (ret__ == (oval)) \
- raw_cpu_write(pcp, nval); \
- ret__; \
-})
-
-#ifndef raw_cpu_cmpxchg
-# ifndef raw_cpu_cmpxchg_1
-# define raw_cpu_cmpxchg_1(pcp, oval, nval) raw_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# ifndef raw_cpu_cmpxchg_2
-# define raw_cpu_cmpxchg_2(pcp, oval, nval) raw_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# ifndef raw_cpu_cmpxchg_4
-# define raw_cpu_cmpxchg_4(pcp, oval, nval) raw_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# ifndef raw_cpu_cmpxchg_8
-# define raw_cpu_cmpxchg_8(pcp, oval, nval) raw_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# define raw_cpu_cmpxchg(pcp, oval, nval) \
- __pcpu_size_call_return2(raw_cpu_cmpxchg_, pcp, oval, nval)
-#endif
-
-#define raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \
-({ \
- int __ret = 0; \
- if (raw_cpu_read(pcp1) == (oval1) && \
- raw_cpu_read(pcp2) == (oval2)) { \
- raw_cpu_write(pcp1, (nval1)); \
- raw_cpu_write(pcp2, (nval2)); \
- __ret = 1; \
- } \
- (__ret); \
-})
-
-#ifndef raw_cpu_cmpxchg_double
-# ifndef raw_cpu_cmpxchg_double_1
-# define raw_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# ifndef raw_cpu_cmpxchg_double_2
-# define raw_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# ifndef raw_cpu_cmpxchg_double_4
-# define raw_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# ifndef raw_cpu_cmpxchg_double_8
-# define raw_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# define raw_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- __pcpu_double_call_return_bool(raw_cpu_cmpxchg_double_, (pcp1), (pcp2), (oval1), (oval2), (nval1), (nval2))
-#endif
-
-/*
- * Generic percpu operations for context that are safe from preemption/interrupts.
- */
-#ifndef __this_cpu_read
-# define __this_cpu_read(pcp) \
- (__this_cpu_preempt_check("read"),__pcpu_size_call_return(raw_cpu_read_, (pcp)))
-#endif
-
-#ifndef __this_cpu_write
-# define __this_cpu_write(pcp, val) \
-do { __this_cpu_preempt_check("write"); \
- __pcpu_size_call(raw_cpu_write_, (pcp), (val)); \
-} while (0)
-#endif
-
-#ifndef __this_cpu_add
-# define __this_cpu_add(pcp, val) \
-do { __this_cpu_preempt_check("add"); \
- __pcpu_size_call(raw_cpu_add_, (pcp), (val)); \
-} while (0)
-#endif
-
-#ifndef __this_cpu_sub
-# define __this_cpu_sub(pcp, val) __this_cpu_add((pcp), -(typeof(pcp))(val))
-#endif
-
-#ifndef __this_cpu_inc
-# define __this_cpu_inc(pcp) __this_cpu_add((pcp), 1)
-#endif
-
-#ifndef __this_cpu_dec
-# define __this_cpu_dec(pcp) __this_cpu_sub((pcp), 1)
-#endif
-
-#ifndef __this_cpu_and
-# define __this_cpu_and(pcp, val) \
-do { __this_cpu_preempt_check("and"); \
- __pcpu_size_call(raw_cpu_and_, (pcp), (val)); \
-} while (0)
-
-#endif
-
-#ifndef __this_cpu_or
-# define __this_cpu_or(pcp, val) \
-do { __this_cpu_preempt_check("or"); \
- __pcpu_size_call(raw_cpu_or_, (pcp), (val)); \
-} while (0)
-#endif
-
-#ifndef __this_cpu_add_return
-# define __this_cpu_add_return(pcp, val) \
- (__this_cpu_preempt_check("add_return"),__pcpu_size_call_return2(raw_cpu_add_return_, pcp, val))
-#endif
-
-#define __this_cpu_sub_return(pcp, val) __this_cpu_add_return(pcp, -(typeof(pcp))(val))
-#define __this_cpu_inc_return(pcp) __this_cpu_add_return(pcp, 1)
-#define __this_cpu_dec_return(pcp) __this_cpu_add_return(pcp, -1)
-
-#ifndef __this_cpu_xchg
-# define __this_cpu_xchg(pcp, nval) \
- (__this_cpu_preempt_check("xchg"),__pcpu_size_call_return2(raw_cpu_xchg_, (pcp), nval))
-#endif
-
-#ifndef __this_cpu_cmpxchg
-# define __this_cpu_cmpxchg(pcp, oval, nval) \
- (__this_cpu_preempt_check("cmpxchg"),__pcpu_size_call_return2(raw_cpu_cmpxchg_, pcp, oval, nval))
-#endif
-
-#ifndef __this_cpu_cmpxchg_double
-# define __this_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \
- (__this_cpu_preempt_check("cmpxchg_double"),__pcpu_double_call_return_bool(raw_cpu_cmpxchg_double_, (pcp1), (pcp2), (oval1), (oval2), (nval1), (nval2)))
-#endif
-
#endif /* __LINUX_PERCPU_H */
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