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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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68c38fc3cb
As of commitdcce284("mm: Extend gfp masking to the page allocator") and commit7e85ee0("slab,slub: don't enable interrupts during early boot"), the slab allocator makes sure we don't attempt to sleep during boot. Therefore, remove bootmem special cases from the scheduler and use plain GFP_KERNEL instead. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1279225102-2572-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
38 lines
931 B
C
38 lines
931 B
C
#ifndef _LINUX_CPUPRI_H
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#define _LINUX_CPUPRI_H
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#include <linux/sched.h>
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#define CPUPRI_NR_PRIORITIES (MAX_RT_PRIO + 2)
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#define CPUPRI_NR_PRI_WORDS BITS_TO_LONGS(CPUPRI_NR_PRIORITIES)
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#define CPUPRI_INVALID -1
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#define CPUPRI_IDLE 0
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#define CPUPRI_NORMAL 1
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/* values 2-101 are RT priorities 0-99 */
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struct cpupri_vec {
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raw_spinlock_t lock;
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int count;
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cpumask_var_t mask;
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};
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struct cpupri {
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struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
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long pri_active[CPUPRI_NR_PRI_WORDS];
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int cpu_to_pri[NR_CPUS];
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};
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#ifdef CONFIG_SMP
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int cpupri_find(struct cpupri *cp,
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struct task_struct *p, struct cpumask *lowest_mask);
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void cpupri_set(struct cpupri *cp, int cpu, int pri);
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int cpupri_init(struct cpupri *cp);
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void cpupri_cleanup(struct cpupri *cp);
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#else
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#define cpupri_set(cp, cpu, pri) do { } while (0)
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#define cpupri_init() do { } while (0)
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#endif
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#endif /* _LINUX_CPUPRI_H */
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