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@@ -3,328 +3,37 @@
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/*
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* Cpumasks provide a bitmap suitable for representing the
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- * set of CPU's in a system, one bit position per CPU number.
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- *
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- * The new cpumask_ ops take a "struct cpumask *"; the old ones
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- * use cpumask_t.
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- *
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- * See detailed comments in the file linux/bitmap.h describing the
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- * data type on which these cpumasks are based.
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- *
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- * For details of cpumask_scnprintf() and cpumask_parse_user(),
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- * see bitmap_scnprintf() and bitmap_parse_user() in lib/bitmap.c.
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- * For details of cpulist_scnprintf() and cpulist_parse(), see
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- * bitmap_scnlistprintf() and bitmap_parselist(), also in bitmap.c.
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- *
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- * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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- * Note: The alternate operations with the suffix "_nr" are used
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- * to limit the range of the loop to nr_cpu_ids instead of
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- * NR_CPUS when NR_CPUS > 64 for performance reasons.
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- * If NR_CPUS is <= 64 then most assembler bitmask
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- * operators execute faster with a constant range, so
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- * the operator will continue to use NR_CPUS.
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- *
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- * Another consideration is that nr_cpu_ids is initialized
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- * to NR_CPUS and isn't lowered until the possible cpus are
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- * discovered (including any disabled cpus). So early uses
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- * will span the entire range of NR_CPUS.
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- * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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- *
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- * The obsolescent cpumask operations are:
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- *
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- * void cpu_set(cpu, mask) turn on bit 'cpu' in mask
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- * void cpu_clear(cpu, mask) turn off bit 'cpu' in mask
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- * void cpus_setall(mask) set all bits
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- * void cpus_clear(mask) clear all bits
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- * int cpu_isset(cpu, mask) true iff bit 'cpu' set in mask
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- * int cpu_test_and_set(cpu, mask) test and set bit 'cpu' in mask
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- *
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- * int cpus_and(dst, src1, src2) dst = src1 & src2 [intersection]
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- * void cpus_or(dst, src1, src2) dst = src1 | src2 [union]
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- * void cpus_xor(dst, src1, src2) dst = src1 ^ src2
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- * int cpus_andnot(dst, src1, src2) dst = src1 & ~src2
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- *
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- * int cpus_equal(mask1, mask2) Does mask1 == mask2?
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- * int cpus_intersects(mask1, mask2) Do mask1 and mask2 intersect?
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- * int cpus_subset(mask1, mask2) Is mask1 a subset of mask2?
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- * int cpus_empty(mask) Is mask empty (no bits sets)?
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- * int cpus_weight(mask) Hamming weigh - number of set bits
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- *
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- * void cpus_shift_left(dst, src, n) Shift left
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- *
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- * int first_cpu(mask) Number lowest set bit, or NR_CPUS
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- * int next_cpu(cpu, mask) Next cpu past 'cpu', or NR_CPUS
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- *
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- * cpumask_t cpumask_of_cpu(cpu) Return cpumask with bit 'cpu' set
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- * (can be used as an lvalue)
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- * CPU_MASK_ALL Initializer - all bits set
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- * CPU_MASK_NONE Initializer - no bits set
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- * unsigned long *cpus_addr(mask) Array of unsigned long's in mask
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- *
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- * int cpumask_scnprintf(buf, len, mask) Format cpumask for printing
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- * int cpumask_parse_user(ubuf, ulen, mask) Parse ascii string as cpumask
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- * int cpulist_scnprintf(buf, len, mask) Format cpumask as list for printing
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- * int cpulist_parse(buf, map) Parse ascii string as cpulist
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- *
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- * for_each_cpu_mask(cpu, mask) for-loop cpu over mask using NR_CPUS
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- * for_each_cpu_mask_nr(cpu, mask) for-loop cpu over mask using nr_cpu_ids
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- *
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- * int num_online_cpus() Number of online CPUs
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- * int num_possible_cpus() Number of all possible CPUs
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- * int num_present_cpus() Number of present CPUs
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- *
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- * int cpu_online(cpu) Is some cpu online?
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- * int cpu_possible(cpu) Is some cpu possible?
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- * int cpu_present(cpu) Is some cpu present (can schedule)?
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- *
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- * int any_online_cpu(mask) First online cpu in mask
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- *
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- * for_each_possible_cpu(cpu) for-loop cpu over cpu_possible_map
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- * for_each_online_cpu(cpu) for-loop cpu over cpu_online_map
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- * for_each_present_cpu(cpu) for-loop cpu over cpu_present_map
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- *
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- * Subtlety:
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- * 1) The 'type-checked' form of cpu_isset() causes gcc (3.3.2, anyway)
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- * to generate slightly worse code. Note for example the additional
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- * 40 lines of assembly code compiling the "for each possible cpu"
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- * loops buried in the disk_stat_read() macros calls when compiling
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- * drivers/block/genhd.c (arch i386, CONFIG_SMP=y). So use a simple
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- * one-line #define for cpu_isset(), instead of wrapping an inline
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- * inside a macro, the way we do the other calls.
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+ * set of CPU's in a system, one bit position per CPU number. In general,
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+ * only nr_cpu_ids (<= NR_CPUS) bits are valid.
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*/
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-
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#include <linux/kernel.h>
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#include <linux/threads.h>
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#include <linux/bitmap.h>
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typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t;
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-#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
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-#define cpu_set(cpu, dst) __cpu_set((cpu), &(dst))
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-static inline void __cpu_set(int cpu, volatile cpumask_t *dstp)
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-{
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- set_bit(cpu, dstp->bits);
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-}
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-
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-#define cpu_clear(cpu, dst) __cpu_clear((cpu), &(dst))
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-static inline void __cpu_clear(int cpu, volatile cpumask_t *dstp)
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-{
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- clear_bit(cpu, dstp->bits);
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-}
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-
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-#define cpus_setall(dst) __cpus_setall(&(dst), NR_CPUS)
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-static inline void __cpus_setall(cpumask_t *dstp, int nbits)
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-{
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- bitmap_fill(dstp->bits, nbits);
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-}
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-
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-#define cpus_clear(dst) __cpus_clear(&(dst), NR_CPUS)
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-static inline void __cpus_clear(cpumask_t *dstp, int nbits)
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-{
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- bitmap_zero(dstp->bits, nbits);
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-}
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-
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-/* No static inline type checking - see Subtlety (1) above. */
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-#define cpu_isset(cpu, cpumask) test_bit((cpu), (cpumask).bits)
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-
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-#define cpu_test_and_set(cpu, cpumask) __cpu_test_and_set((cpu), &(cpumask))
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-static inline int __cpu_test_and_set(int cpu, cpumask_t *addr)
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-{
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- return test_and_set_bit(cpu, addr->bits);
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-}
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-
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-#define cpus_and(dst, src1, src2) __cpus_and(&(dst), &(src1), &(src2), NR_CPUS)
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-static inline int __cpus_and(cpumask_t *dstp, const cpumask_t *src1p,
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- const cpumask_t *src2p, int nbits)
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-{
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- return bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits);
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-}
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-
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-#define cpus_or(dst, src1, src2) __cpus_or(&(dst), &(src1), &(src2), NR_CPUS)
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-static inline void __cpus_or(cpumask_t *dstp, const cpumask_t *src1p,
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- const cpumask_t *src2p, int nbits)
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-{
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- bitmap_or(dstp->bits, src1p->bits, src2p->bits, nbits);
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-}
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-
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-#define cpus_xor(dst, src1, src2) __cpus_xor(&(dst), &(src1), &(src2), NR_CPUS)
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-static inline void __cpus_xor(cpumask_t *dstp, const cpumask_t *src1p,
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- const cpumask_t *src2p, int nbits)
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-{
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- bitmap_xor(dstp->bits, src1p->bits, src2p->bits, nbits);
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-}
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-
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-#define cpus_andnot(dst, src1, src2) \
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- __cpus_andnot(&(dst), &(src1), &(src2), NR_CPUS)
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-static inline int __cpus_andnot(cpumask_t *dstp, const cpumask_t *src1p,
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- const cpumask_t *src2p, int nbits)
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-{
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- return bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits);
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-}
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-
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-#define cpus_equal(src1, src2) __cpus_equal(&(src1), &(src2), NR_CPUS)
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-static inline int __cpus_equal(const cpumask_t *src1p,
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- const cpumask_t *src2p, int nbits)
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-{
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- return bitmap_equal(src1p->bits, src2p->bits, nbits);
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-}
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-
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-#define cpus_intersects(src1, src2) __cpus_intersects(&(src1), &(src2), NR_CPUS)
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-static inline int __cpus_intersects(const cpumask_t *src1p,
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- const cpumask_t *src2p, int nbits)
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-{
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- return bitmap_intersects(src1p->bits, src2p->bits, nbits);
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-}
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-
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-#define cpus_subset(src1, src2) __cpus_subset(&(src1), &(src2), NR_CPUS)
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-static inline int __cpus_subset(const cpumask_t *src1p,
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- const cpumask_t *src2p, int nbits)
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-{
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- return bitmap_subset(src1p->bits, src2p->bits, nbits);
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-}
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-
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-#define cpus_empty(src) __cpus_empty(&(src), NR_CPUS)
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-static inline int __cpus_empty(const cpumask_t *srcp, int nbits)
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-{
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- return bitmap_empty(srcp->bits, nbits);
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-}
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-
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-#define cpus_weight(cpumask) __cpus_weight(&(cpumask), NR_CPUS)
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-static inline int __cpus_weight(const cpumask_t *srcp, int nbits)
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-{
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- return bitmap_weight(srcp->bits, nbits);
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-}
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-
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-#define cpus_shift_left(dst, src, n) \
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- __cpus_shift_left(&(dst), &(src), (n), NR_CPUS)
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-static inline void __cpus_shift_left(cpumask_t *dstp,
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- const cpumask_t *srcp, int n, int nbits)
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-{
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- bitmap_shift_left(dstp->bits, srcp->bits, n, nbits);
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-}
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-#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */
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-
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/**
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- * to_cpumask - convert an NR_CPUS bitmap to a struct cpumask *
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- * @bitmap: the bitmap
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+ * cpumask_bits - get the bits in a cpumask
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+ * @maskp: the struct cpumask *
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*
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- * There are a few places where cpumask_var_t isn't appropriate and
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- * static cpumasks must be used (eg. very early boot), yet we don't
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- * expose the definition of 'struct cpumask'.
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- *
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- * This does the conversion, and can be used as a constant initializer.
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+ * You should only assume nr_cpu_ids bits of this mask are valid. This is
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+ * a macro so it's const-correct.
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*/
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-#define to_cpumask(bitmap) \
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- ((struct cpumask *)(1 ? (bitmap) \
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- : (void *)sizeof(__check_is_bitmap(bitmap))))
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-
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-static inline int __check_is_bitmap(const unsigned long *bitmap)
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-{
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- return 1;
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-}
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-
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-/*
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- * Special-case data structure for "single bit set only" constant CPU masks.
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- *
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- * We pre-generate all the 64 (or 32) possible bit positions, with enough
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- * padding to the left and the right, and return the constant pointer
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- * appropriately offset.
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- */
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-extern const unsigned long
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- cpu_bit_bitmap[BITS_PER_LONG+1][BITS_TO_LONGS(NR_CPUS)];
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-
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-static inline const struct cpumask *get_cpu_mask(unsigned int cpu)
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-{
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- const unsigned long *p = cpu_bit_bitmap[1 + cpu % BITS_PER_LONG];
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- p -= cpu / BITS_PER_LONG;
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- return to_cpumask(p);
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-}
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-
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-#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
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-/*
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- * In cases where we take the address of the cpumask immediately,
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- * gcc optimizes it out (it's a constant) and there's no huge stack
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- * variable created:
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- */
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-#define cpumask_of_cpu(cpu) (*get_cpu_mask(cpu))
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-
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-
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-#define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS)
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-
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-#if NR_CPUS <= BITS_PER_LONG
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-
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-#define CPU_MASK_ALL \
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-(cpumask_t) { { \
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- [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
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-} }
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-
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-#else
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-
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-#define CPU_MASK_ALL \
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-(cpumask_t) { { \
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- [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \
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- [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
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-} }
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-
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-#endif
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-
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-#define CPU_MASK_NONE \
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-(cpumask_t) { { \
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- [0 ... BITS_TO_LONGS(NR_CPUS)-1] = 0UL \
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-} }
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-
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-#define CPU_MASK_CPU0 \
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-(cpumask_t) { { \
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- [0] = 1UL \
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-} }
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-
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-#define cpus_addr(src) ((src).bits)
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-
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-#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */
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+#define cpumask_bits(maskp) ((maskp)->bits)
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#if NR_CPUS == 1
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-
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#define nr_cpu_ids 1
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-#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
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-#define first_cpu(src) ({ (void)(src); 0; })
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-#define next_cpu(n, src) ({ (void)(src); 1; })
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-#define any_online_cpu(mask) 0
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-#define for_each_cpu_mask(cpu, mask) \
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- for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
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-#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */
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-#else /* NR_CPUS > 1 */
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-
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+#else
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extern int nr_cpu_ids;
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-#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
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-int __first_cpu(const cpumask_t *srcp);
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-int __next_cpu(int n, const cpumask_t *srcp);
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-int __any_online_cpu(const cpumask_t *mask);
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-
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-#define first_cpu(src) __first_cpu(&(src))
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-#define next_cpu(n, src) __next_cpu((n), &(src))
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-#define any_online_cpu(mask) __any_online_cpu(&(mask))
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-#define for_each_cpu_mask(cpu, mask) \
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- for ((cpu) = -1; \
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- (cpu) = next_cpu((cpu), (mask)), \
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- (cpu) < NR_CPUS; )
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-#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */
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#endif
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-#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
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-#if NR_CPUS <= 64
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-
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-#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask)
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-
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-#else /* NR_CPUS > 64 */
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-
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-int __next_cpu_nr(int n, const cpumask_t *srcp);
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-#define for_each_cpu_mask_nr(cpu, mask) \
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- for ((cpu) = -1; \
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- (cpu) = __next_cpu_nr((cpu), &(mask)), \
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- (cpu) < nr_cpu_ids; )
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-
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-#endif /* NR_CPUS > 64 */
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-#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */
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+#ifdef CONFIG_CPUMASK_OFFSTACK
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+/* Assuming NR_CPUS is huge, a runtime limit is more efficient. Also,
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+ * not all bits may be allocated. */
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+#define nr_cpumask_bits nr_cpu_ids
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+#else
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+#define nr_cpumask_bits NR_CPUS
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+#endif
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/*
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* The following particular system cpumasks and operations manage
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@@ -371,12 +80,6 @@ extern const struct cpumask *const cpu_online_mask;
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extern const struct cpumask *const cpu_present_mask;
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extern const struct cpumask *const cpu_active_mask;
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-/* These strip const, as traditionally they weren't const. */
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-#define cpu_possible_map (*(cpumask_t *)cpu_possible_mask)
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-#define cpu_online_map (*(cpumask_t *)cpu_online_mask)
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-#define cpu_present_map (*(cpumask_t *)cpu_present_mask)
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-#define cpu_active_map (*(cpumask_t *)cpu_active_mask)
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-
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#if NR_CPUS > 1
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#define num_online_cpus() cpumask_weight(cpu_online_mask)
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#define num_possible_cpus() cpumask_weight(cpu_possible_mask)
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@@ -395,35 +98,6 @@ extern const struct cpumask *const cpu_active_mask;
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#define cpu_active(cpu) ((cpu) == 0)
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#endif
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-#define cpu_is_offline(cpu) unlikely(!cpu_online(cpu))
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-
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-/* These are the new versions of the cpumask operators: passed by pointer.
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- * The older versions will be implemented in terms of these, then deleted. */
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-#define cpumask_bits(maskp) ((maskp)->bits)
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-
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-#if NR_CPUS <= BITS_PER_LONG
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-#define CPU_BITS_ALL \
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-{ \
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- [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
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-}
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-
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-#else /* NR_CPUS > BITS_PER_LONG */
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-
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-#define CPU_BITS_ALL \
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-{ \
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- [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \
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- [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
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-}
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-#endif /* NR_CPUS > BITS_PER_LONG */
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-
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-#ifdef CONFIG_CPUMASK_OFFSTACK
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-/* Assuming NR_CPUS is huge, a runtime limit is more efficient. Also,
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- * not all bits may be allocated. */
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-#define nr_cpumask_bits nr_cpu_ids
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-#else
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-#define nr_cpumask_bits NR_CPUS
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-#endif
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-
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/* verify cpu argument to cpumask_* operators */
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static inline unsigned int cpumask_check(unsigned int cpu)
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{
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@@ -984,4 +658,241 @@ void set_cpu_active(unsigned int cpu, bool active);
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void init_cpu_present(const struct cpumask *src);
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void init_cpu_possible(const struct cpumask *src);
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void init_cpu_online(const struct cpumask *src);
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+
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+/**
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+ * to_cpumask - convert an NR_CPUS bitmap to a struct cpumask *
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+ * @bitmap: the bitmap
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+ *
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+ * There are a few places where cpumask_var_t isn't appropriate and
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+ * static cpumasks must be used (eg. very early boot), yet we don't
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+ * expose the definition of 'struct cpumask'.
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+ *
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+ * This does the conversion, and can be used as a constant initializer.
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+ */
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+#define to_cpumask(bitmap) \
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+ ((struct cpumask *)(1 ? (bitmap) \
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+ : (void *)sizeof(__check_is_bitmap(bitmap))))
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+
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+static inline int __check_is_bitmap(const unsigned long *bitmap)
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+{
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+ return 1;
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+}
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+
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+/*
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+ * Special-case data structure for "single bit set only" constant CPU masks.
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+ *
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+ * We pre-generate all the 64 (or 32) possible bit positions, with enough
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+ * padding to the left and the right, and return the constant pointer
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+ * appropriately offset.
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+ */
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+extern const unsigned long
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+ cpu_bit_bitmap[BITS_PER_LONG+1][BITS_TO_LONGS(NR_CPUS)];
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+
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+static inline const struct cpumask *get_cpu_mask(unsigned int cpu)
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+{
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+ const unsigned long *p = cpu_bit_bitmap[1 + cpu % BITS_PER_LONG];
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+ p -= cpu / BITS_PER_LONG;
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+ return to_cpumask(p);
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+}
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+
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+#define cpu_is_offline(cpu) unlikely(!cpu_online(cpu))
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+
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+#if NR_CPUS <= BITS_PER_LONG
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+#define CPU_BITS_ALL \
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+{ \
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+ [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
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+}
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+
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+#else /* NR_CPUS > BITS_PER_LONG */
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+
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+#define CPU_BITS_ALL \
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|
+{ \
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+ [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \
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+ [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
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+}
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|
+#endif /* NR_CPUS > BITS_PER_LONG */
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+
|
|
|
+/*
|
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+ *
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+ * From here down, all obsolete. Use cpumask_ variants!
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+ *
|
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+ */
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|
+#ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
|
|
|
+/* These strip const, as traditionally they weren't const. */
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|
|
+#define cpu_possible_map (*(cpumask_t *)cpu_possible_mask)
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|
+#define cpu_online_map (*(cpumask_t *)cpu_online_mask)
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+#define cpu_present_map (*(cpumask_t *)cpu_present_mask)
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+#define cpu_active_map (*(cpumask_t *)cpu_active_mask)
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+
|
|
|
+#define cpumask_of_cpu(cpu) (*get_cpu_mask(cpu))
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+
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|
+#define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS)
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+
|
|
|
+#if NR_CPUS <= BITS_PER_LONG
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+
|
|
|
+#define CPU_MASK_ALL \
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+(cpumask_t) { { \
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|
|
+ [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
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|
+} }
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+
|
|
|
+#else
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+
|
|
|
+#define CPU_MASK_ALL \
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|
+(cpumask_t) { { \
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|
+ [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \
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|
|
+ [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
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|
+} }
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+
|
|
|
+#endif
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+
|
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|
+#define CPU_MASK_NONE \
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+(cpumask_t) { { \
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|
+ [0 ... BITS_TO_LONGS(NR_CPUS)-1] = 0UL \
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|
+} }
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+
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+#define CPU_MASK_CPU0 \
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+(cpumask_t) { { \
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+ [0] = 1UL \
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|
+} }
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+
|
|
|
+#if NR_CPUS == 1
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|
|
+#define first_cpu(src) ({ (void)(src); 0; })
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|
+#define next_cpu(n, src) ({ (void)(src); 1; })
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|
|
+#define any_online_cpu(mask) 0
|
|
|
+#define for_each_cpu_mask(cpu, mask) \
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|
|
+ for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
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|
|
+#else /* NR_CPUS > 1 */
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|
|
+int __first_cpu(const cpumask_t *srcp);
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|
|
+int __next_cpu(int n, const cpumask_t *srcp);
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|
|
+int __any_online_cpu(const cpumask_t *mask);
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|
+
|
|
|
+#define first_cpu(src) __first_cpu(&(src))
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|
|
+#define next_cpu(n, src) __next_cpu((n), &(src))
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|
|
+#define any_online_cpu(mask) __any_online_cpu(&(mask))
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|
|
+#define for_each_cpu_mask(cpu, mask) \
|
|
|
+ for ((cpu) = -1; \
|
|
|
+ (cpu) = next_cpu((cpu), (mask)), \
|
|
|
+ (cpu) < NR_CPUS; )
|
|
|
+#endif /* SMP */
|
|
|
+
|
|
|
+#if NR_CPUS <= 64
|
|
|
+
|
|
|
+#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask)
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|
|
+
|
|
|
+#else /* NR_CPUS > 64 */
|
|
|
+
|
|
|
+int __next_cpu_nr(int n, const cpumask_t *srcp);
|
|
|
+#define for_each_cpu_mask_nr(cpu, mask) \
|
|
|
+ for ((cpu) = -1; \
|
|
|
+ (cpu) = __next_cpu_nr((cpu), &(mask)), \
|
|
|
+ (cpu) < nr_cpu_ids; )
|
|
|
+
|
|
|
+#endif /* NR_CPUS > 64 */
|
|
|
+
|
|
|
+#define cpus_addr(src) ((src).bits)
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|
|
+
|
|
|
+#define cpu_set(cpu, dst) __cpu_set((cpu), &(dst))
|
|
|
+static inline void __cpu_set(int cpu, volatile cpumask_t *dstp)
|
|
|
+{
|
|
|
+ set_bit(cpu, dstp->bits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpu_clear(cpu, dst) __cpu_clear((cpu), &(dst))
|
|
|
+static inline void __cpu_clear(int cpu, volatile cpumask_t *dstp)
|
|
|
+{
|
|
|
+ clear_bit(cpu, dstp->bits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_setall(dst) __cpus_setall(&(dst), NR_CPUS)
|
|
|
+static inline void __cpus_setall(cpumask_t *dstp, int nbits)
|
|
|
+{
|
|
|
+ bitmap_fill(dstp->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_clear(dst) __cpus_clear(&(dst), NR_CPUS)
|
|
|
+static inline void __cpus_clear(cpumask_t *dstp, int nbits)
|
|
|
+{
|
|
|
+ bitmap_zero(dstp->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+/* No static inline type checking - see Subtlety (1) above. */
|
|
|
+#define cpu_isset(cpu, cpumask) test_bit((cpu), (cpumask).bits)
|
|
|
+
|
|
|
+#define cpu_test_and_set(cpu, cpumask) __cpu_test_and_set((cpu), &(cpumask))
|
|
|
+static inline int __cpu_test_and_set(int cpu, cpumask_t *addr)
|
|
|
+{
|
|
|
+ return test_and_set_bit(cpu, addr->bits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_and(dst, src1, src2) __cpus_and(&(dst), &(src1), &(src2), NR_CPUS)
|
|
|
+static inline int __cpus_and(cpumask_t *dstp, const cpumask_t *src1p,
|
|
|
+ const cpumask_t *src2p, int nbits)
|
|
|
+{
|
|
|
+ return bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_or(dst, src1, src2) __cpus_or(&(dst), &(src1), &(src2), NR_CPUS)
|
|
|
+static inline void __cpus_or(cpumask_t *dstp, const cpumask_t *src1p,
|
|
|
+ const cpumask_t *src2p, int nbits)
|
|
|
+{
|
|
|
+ bitmap_or(dstp->bits, src1p->bits, src2p->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_xor(dst, src1, src2) __cpus_xor(&(dst), &(src1), &(src2), NR_CPUS)
|
|
|
+static inline void __cpus_xor(cpumask_t *dstp, const cpumask_t *src1p,
|
|
|
+ const cpumask_t *src2p, int nbits)
|
|
|
+{
|
|
|
+ bitmap_xor(dstp->bits, src1p->bits, src2p->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_andnot(dst, src1, src2) \
|
|
|
+ __cpus_andnot(&(dst), &(src1), &(src2), NR_CPUS)
|
|
|
+static inline int __cpus_andnot(cpumask_t *dstp, const cpumask_t *src1p,
|
|
|
+ const cpumask_t *src2p, int nbits)
|
|
|
+{
|
|
|
+ return bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_equal(src1, src2) __cpus_equal(&(src1), &(src2), NR_CPUS)
|
|
|
+static inline int __cpus_equal(const cpumask_t *src1p,
|
|
|
+ const cpumask_t *src2p, int nbits)
|
|
|
+{
|
|
|
+ return bitmap_equal(src1p->bits, src2p->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_intersects(src1, src2) __cpus_intersects(&(src1), &(src2), NR_CPUS)
|
|
|
+static inline int __cpus_intersects(const cpumask_t *src1p,
|
|
|
+ const cpumask_t *src2p, int nbits)
|
|
|
+{
|
|
|
+ return bitmap_intersects(src1p->bits, src2p->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_subset(src1, src2) __cpus_subset(&(src1), &(src2), NR_CPUS)
|
|
|
+static inline int __cpus_subset(const cpumask_t *src1p,
|
|
|
+ const cpumask_t *src2p, int nbits)
|
|
|
+{
|
|
|
+ return bitmap_subset(src1p->bits, src2p->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_empty(src) __cpus_empty(&(src), NR_CPUS)
|
|
|
+static inline int __cpus_empty(const cpumask_t *srcp, int nbits)
|
|
|
+{
|
|
|
+ return bitmap_empty(srcp->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_weight(cpumask) __cpus_weight(&(cpumask), NR_CPUS)
|
|
|
+static inline int __cpus_weight(const cpumask_t *srcp, int nbits)
|
|
|
+{
|
|
|
+ return bitmap_weight(srcp->bits, nbits);
|
|
|
+}
|
|
|
+
|
|
|
+#define cpus_shift_left(dst, src, n) \
|
|
|
+ __cpus_shift_left(&(dst), &(src), (n), NR_CPUS)
|
|
|
+static inline void __cpus_shift_left(cpumask_t *dstp,
|
|
|
+ const cpumask_t *srcp, int n, int nbits)
|
|
|
+{
|
|
|
+ bitmap_shift_left(dstp->bits, srcp->bits, n, nbits);
|
|
|
+}
|
|
|
+#endif /* !CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS */
|
|
|
+
|
|
|
#endif /* __LINUX_CPUMASK_H */
|