cpumask: remove deprecated functions.
Using these functions with offstack cpus is unsafe. They use all NR_CPUS bits, unstead of nr_cpumask_bits. In particular, lustre (in staging) used cpus_ and that caused a bug. Reported-by: Oleg Drokin <green@linuxhacker.ru> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell
parent
1ed1835f5f
commit
2f0f267ea0
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@ -815,155 +815,4 @@ cpumap_print_to_pagebuf(bool list, char *buf, const struct cpumask *mask)
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[0 ... BITS_TO_LONGS(NR_CPUS)-1] = 0UL \
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} }
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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
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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
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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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#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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#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) cpumask_any_and(&mask, cpu_online_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 /* SMP */
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#if NR_CPUS <= 64
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#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask)
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#else /* NR_CPUS > 64 */
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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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#endif /* NR_CPUS > 64 */
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#define cpus_addr(src) ((src).bits)
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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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#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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#define cpus_setall(dst) __cpus_setall(&(dst), NR_CPUS)
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static inline void __cpus_setall(cpumask_t *dstp, unsigned int nbits)
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{
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bitmap_fill(dstp->bits, nbits);
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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, unsigned int nbits)
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{
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bitmap_zero(dstp->bits, nbits);
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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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#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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#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, unsigned 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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#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, unsigned 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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#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, unsigned 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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#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, unsigned 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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#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, unsigned 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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#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, unsigned 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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#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, unsigned 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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#define cpus_empty(src) __cpus_empty(&(src), NR_CPUS)
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static inline int __cpus_empty(const cpumask_t *srcp, unsigned int nbits)
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{
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return bitmap_empty(srcp->bits, nbits);
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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, unsigned int nbits)
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{
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return bitmap_weight(srcp->bits, nbits);
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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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#endif /* __LINUX_CPUMASK_H */
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@ -397,10 +397,6 @@ config CPUMASK_OFFSTACK
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them on the stack. This is a bit more expensive, but avoids
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stack overflow.
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config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
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bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS
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depends on BROKEN
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config CPU_RMAP
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bool
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depends on SMP
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