kern_cpuset.c File Reference

#include <sys/cdefs.h>
#include "opt_ddb.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sysproto.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/refcount.h>
#include <sys/sched.h>
#include <sys/smp.h>
#include <sys/syscallsubr.h>
#include <sys/cpuset.h>
#include <sys/sx.h>
#include <sys/queue.h>
#include <sys/libkern.h>
#include <sys/limits.h>
#include <sys/bus.h>
#include <sys/interrupt.h>
#include <vm/uma.h>

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Data Structures
struct	cpuset_args
struct	cpuset_setid_args

Functions
	__FBSDID ("$BSDSUniX$")
	SYSCTL_INT (_kern_sched, OID_AUTO, cpusetsize, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, sizeof(cpuset_t),"sizeof(cpuset_t)")
struct cpuset *	cpuset_ref (struct cpuset *set)
static struct cpuset *	cpuset_refroot (struct cpuset *set)
static struct cpuset *	cpuset_refbase (struct cpuset *set)
void	cpuset_rel (struct cpuset *set)
static void	cpuset_rel_defer (struct setlist *head, struct cpuset *set)
static void	cpuset_rel_complete (struct cpuset *set)
static struct cpuset *	cpuset_lookup (cpusetid_t setid, struct thread *td)
static int	_cpuset_create (struct cpuset *set, struct cpuset *parent, const cpuset_t *mask, cpusetid_t id)
static int	cpuset_create (struct cpuset **setp, struct cpuset *parent, const cpuset_t *mask)
static int	cpuset_testupdate (struct cpuset *set, cpuset_t *mask, int check_mask)
static void	cpuset_update (struct cpuset *set, cpuset_t *mask)
static int	cpuset_modify (struct cpuset *set, cpuset_t *mask)
static int	cpuset_which (cpuwhich_t which, id_t id, struct proc **pp, struct thread **tdp, struct cpuset **setp)
static int	cpuset_shadow (struct cpuset *set, struct cpuset *fset, const cpuset_t *mask)
static int	cpuset_setproc (pid_t pid, struct cpuset *set, cpuset_t *mask)
int	cpusetobj_ffs (const cpuset_t *set)
char *	cpusetobj_strprint (char *buf, const cpuset_t *set)
int	cpusetobj_strscan (cpuset_t *set, const char *buf)
int	cpuset_setthread (lwpid_t id, cpuset_t *mask)
struct cpuset *	cpuset_thread0 (void)
int	cpuset_create_root (struct prison *pr, struct cpuset **setp)
int	cpuset_setproc_update_set (struct proc *p, struct cpuset *set)
static void	cpuset_init (void *arg)
	SYSINIT (cpuset, SI_SUB_SMP, SI_ORDER_ANY, cpuset_init, NULL)
int	sys_cpuset (struct thread *td, struct cpuset_args *uap)
int	sys_cpuset_setid (struct thread *td, struct cpuset_setid_args *uap)

Variables
static uma_zone_t	cpuset_zone
static struct mtx	cpuset_lock
static struct setlist	cpuset_ids
static struct unrhdr *	cpuset_unr
static struct cpuset *	cpuset_zero
cpuset_t *	cpuset_root

Function Documentation

__FBSDID

(

"$BSDSUniX$"

)

static int _cpuset_create ( struct cpuset *  set, struct cpuset *  parent, const cpuset_t *  mask, cpusetid_t  id  )

static

Definition at line 253 of file kern_cpuset.c.

References cpuset_ids, cpuset_lock, and cpuset_ref().

Referenced by cpuset_create(), cpuset_setproc(), cpuset_shadow(), and cpuset_thread0().

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static int cpuset_create ( struct cpuset **  setp, struct cpuset *  parent, const cpuset_t *  mask  )

static

Definition at line 281 of file kern_cpuset.c.

References _cpuset_create(), alloc_unr(), cpuset_zone, free_unr(), and set.

Referenced by cpuset_create_root(), and sys_cpuset().

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int cpuset_create_root	(	struct prison *	pr,
		struct cpuset **	setp
	)

Definition at line 794 of file kern_cpuset.c.

References cpuset_create(), and set.

Referenced by kern_jail_set().

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static void cpuset_init ( void *  arg )

static

Definition at line 837 of file kern_cpuset.c.

References all_cpus, cpuset_modify(), cpuset_zero, mask, and panic().

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static struct cpuset* cpuset_lookup ( cpusetid_t  setid, struct thread *  td  )

static

Definition at line 216 of file kern_cpuset.c.

References cpuset_ids, cpuset_lock, cpuset_ref(), cpuset_rel(), jailed(), and set.

Referenced by cpuset_which(), and sys_cpuset_setid().

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static int cpuset_modify ( struct cpuset *  set, cpuset_t *  mask  )

static

Definition at line 351 of file kern_cpuset.c.

References cpuset_lock, cpuset_testupdate(), cpuset_update(), jailed(), and priv_check().

Referenced by cpuset_init().

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struct cpuset* cpuset_ref

(

struct cpuset *

set

)

Definition at line 121 of file kern_cpuset.c.

Referenced by _cpuset_create(), cpuset_lookup(), cpuset_refbase(), cpuset_refroot(), cpuset_setproc(), cpuset_setproc_update_set(), cpuset_which(), proc0_init(), and sched_fork_thread().

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static struct cpuset* cpuset_refbase ( struct cpuset *  set )

static

Definition at line 150 of file kern_cpuset.c.

References cpuset_ref().

Referenced by cpuset_which().

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static struct cpuset* cpuset_refroot ( struct cpuset *  set )

static

Definition at line 133 of file kern_cpuset.c.

References cpuset_ref().

Referenced by sys_cpuset().

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void cpuset_rel

(

struct cpuset *

set

)

Definition at line 164 of file kern_cpuset.c.

References cpuset_lock, cpuset_zone, and free_unr().

Referenced by cpuset_lookup(), cpuset_rel_complete(), cpuset_setproc_update_set(), cpuset_setthread(), prison_deref(), sys_cpuset(), sys_cpuset_setid(), thread_free(), and thread_wait().

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static void cpuset_rel_complete ( struct cpuset *  set )

static

Definition at line 205 of file kern_cpuset.c.

References cpuset_rel(), and cpuset_zone.

Referenced by cpuset_setproc().

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static void cpuset_rel_defer ( struct setlist *  head, struct cpuset *  set  )

static

Definition at line 187 of file kern_cpuset.c.

References cpuset_lock.

Referenced by cpuset_setproc().

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static int cpuset_setproc ( pid_t  pid, struct cpuset *  set, cpuset_t *  mask  )

static

Definition at line 509 of file kern_cpuset.c.

References _cpuset_create(), cpuset_ref(), cpuset_rel_complete(), cpuset_rel_defer(), cpuset_shadow(), cpuset_which(), cpuset_zone, and sched_affinity().

Referenced by cpuset_setproc_update_set(), sys_cpuset(), and sys_cpuset_setid().

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int cpuset_setproc_update_set	(	struct proc *	p,
		struct cpuset *	set
	)

Definition at line 817 of file kern_cpuset.c.

References cpuset_ref(), cpuset_rel(), and cpuset_setproc().

Referenced by do_jail_attach().

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int cpuset_setthread	(	lwpid_t	id,
		cpuset_t *	mask
	)

Definition at line 707 of file kern_cpuset.c.

References cpuset_rel(), cpuset_shadow(), cpuset_which(), cpuset_zone, sched_affinity(), and set.

Referenced by intr_event_bind(), kproc_create(), and kthread_add().

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static int cpuset_shadow ( struct cpuset *  set, struct cpuset *  fset, const cpuset_t *  mask  )

static

Definition at line 482 of file kern_cpuset.c.

References _cpuset_create(), parent, and set.

Referenced by cpuset_setproc(), and cpuset_setthread().

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static int cpuset_testupdate ( struct cpuset *  set, cpuset_t *  mask, int  check_mask  )

static

Definition at line 306 of file kern_cpuset.c.

References cpuset_lock.

Referenced by cpuset_modify().

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struct cpuset* cpuset_thread0

(

void

)

Definition at line 750 of file kern_cpuset.c.

References _cpuset_create(), cpuset_ids, cpuset_lock, cpuset_zero, cpuset_zone, mtx_init(), new_unrhdr(), and set.

Referenced by proc0_init().

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static void cpuset_update ( struct cpuset *  set, cpuset_t *  mask  )

static

Definition at line 333 of file kern_cpuset.c.

References cpuset_lock.

Referenced by cpuset_modify().

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static int cpuset_which ( cpuwhich_t  which, id_t  id, struct proc **  pp, struct thread **  tdp, struct cpuset **  setp  )

static

Definition at line 399 of file kern_cpuset.c.

References allprison_lock, cpuset_lookup(), cpuset_ref(), cpuset_refbase(), p_cansched(), pfind(), pr, prison_find_child(), set, and tdfind().

Referenced by cpuset_setproc(), and cpuset_setthread().

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int cpusetobj_ffs

(

const cpuset_t *

set

)

Definition at line 627 of file kern_cpuset.c.

char* cpusetobj_strprint	(	char *	buf,
		const cpuset_t *	set
	)

Definition at line 648 of file kern_cpuset.c.

References buf, and snprintf().

Referenced by sysctl_debug_ktr_cpumask().

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int cpusetobj_strscan	(	cpuset_t *	set,
		const char *	buf
	)

Definition at line 671 of file kern_cpuset.c.

References sscanf().

Referenced by ktr_cpumask_initializer(), and sysctl_debug_ktr_cpumask().

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int sys_cpuset	(	struct thread *	td,
		struct cpuset_args *	uap
	)

Definition at line 854 of file kern_cpuset.c.

References cpuset_create(), cpuset_refroot(), cpuset_rel(), cpuset_setproc(), set, and cpuset_args::setid.

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int sys_cpuset_setid	(	struct thread *	td,
		struct cpuset_setid_args *	uap
	)

Definition at line 882 of file kern_cpuset.c.

References cpuset_lookup(), cpuset_rel(), cpuset_setproc(), cpuset_setid_args::id, set, cpuset_setid_args::setid, and cpuset_setid_args::which.

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SYSCTL_INT	(	_kern_sched	,
		OID_AUTO	,
		cpusetsize	,
		CTLFLAG_RD	,
		SYSCTL_NULL_INT_PTR	,
		sizeof(cpuset_t)	,
		"sizeof(cpuset_t)"
	)

SYSINIT	(	cpuset	,
		SI_SUB_SMP	,
		SI_ORDER_ANY	,
		cpuset_init	,
		NULL
	)

Variable Documentation

struct setlist cpuset_ids

static

Definition at line 107 of file kern_cpuset.c.

Referenced by _cpuset_create(), cpuset_lookup(), and cpuset_thread0().

struct mtx cpuset_lock

static

Definition at line 106 of file kern_cpuset.c.

Referenced by _cpuset_create(), cpuset_lookup(), cpuset_modify(), cpuset_rel(), cpuset_rel_defer(), cpuset_testupdate(), cpuset_thread0(), and cpuset_update().

cpuset_t* cpuset_root

Definition at line 115 of file kern_cpuset.c.

Referenced by intr_event_bind(), intr_getaffinity(), intr_setaffinity(), kproc_create(), and kthread_add().

struct unrhdr* cpuset_unr

static

Definition at line 108 of file kern_cpuset.c.

struct cpuset* cpuset_zero

static

Definition at line 109 of file kern_cpuset.c.

Referenced by cpuset_init(), and cpuset_thread0().

uma_zone_t cpuset_zone

static

Definition at line 105 of file kern_cpuset.c.

Referenced by cpuset_create(), cpuset_rel(), cpuset_rel_complete(), cpuset_setproc(), cpuset_setthread(), and cpuset_thread0().