upstream/opnsense-src
1
0
Fork 0
mirror of https://github.com/opnsense/src.git synced 2026-05-28 04:12:45 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Implement sched_setaffinity and get_setaffinity using

Browse source 
real cpu affinity setting primitives.

Reviewed by:	jeff
Approved by:	kib (mentor)
This commit is contained in:
Roman Divacky 2008-03-16 16:27:44 +00:00
parent 0e286f086c
commit 5dfb688191
3 changed files with 44 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
sys/amd64/linux32/syscalls.master
View file

@ -407,7 +407,8 @@
239 AUE_SENDFILE UNIMPL linux_sendfile64
240 AUE_NULL STD { int linux_sys_futex(void *uaddr, int op, int val, \
struct l_timespec *timeout, void *uaddr2, int val3); }
241 AUE_NULL UNIMPL linux_sched_setaffinity
241 AUE_NULL STD { int linux_sched_setaffinity(l_pid_t pid, l_uint len, \
l_ulong *user_mask_ptr); }
242 AUE_NULL STD { int linux_sched_getaffinity(l_pid_t pid, l_uint len, \
l_ulong *user_mask_ptr); }
243 AUE_NULL STD { int linux_set_thread_area(struct l_user_desc *desc); }

49
sys/compat/linux/linux_misc.c
View file

@ -63,6 +63,7 @@ __FBSDID("$FreeBSD$");
#include <sys/vmmeter.h>
#include <sys/vnode.h>
#include <sys/wait.h>
#include <sys/cpuset.h>
#include <security/mac/mac_framework.h>
@ -1730,22 +1731,52 @@ linux_prctl(struct thread *td, struct linux_prctl_args *args)
}
/*
* XXX: fake one.. waiting for real implementation of affinity mask.
* Get affinity of a process.
*/
int
linux_sched_getaffinity(struct thread *td,
struct linux_sched_getaffinity_args *args)
{
int error;
cpumask_t i = ~0;
struct cpuset_getaffinity_args cga;
if (args->len < sizeof(cpumask_t))
return (EINVAL);
#ifdef DEBUG
if (ldebug(sched_getaffinity))
printf(ARGS(sched_getaffinity, "%d, %d, *"), args->pid,
args->len);
#endif
error = copyout(&i, args->user_mask_ptr, sizeof(cpumask_t));
if (error)
return (EFAULT);
cga.level = CPU_LEVEL_WHICH;
cga.which = CPU_WHICH_PID;
cga.id = args->pid;
cga.cpusetsize = sizeof(cpumask_t);
cga.mask = (long *) args->user_mask_ptr;
if ((error = cpuset_getaffinity(td, &cga)) == 0)
td->td_retval[0] = sizeof(cpumask_t);
td->td_retval[0] = sizeof(cpumask_t);
return (0);
return (error);
}
/*
* Set affinity of a process.
*/
int
linux_sched_setaffinity(struct thread *td,
struct linux_sched_setaffinity_args *args)
{
struct cpuset_setaffinity_args csa;
#ifdef DEBUG
if (ldebug(sched_setaffinity))
printf(ARGS(sched_setaffinity, "%d, %d, *"), args->pid,
args->len);
#endif
csa.level = CPU_LEVEL_WHICH;
csa.which = CPU_WHICH_PID;
csa.id = args->pid;
csa.cpusetsize = args->len;
csa.mask = (long *) args->user_mask_ptr;
return (cpuset_setaffinity(td, &csa));
}

3
sys/i386/linux/syscalls.master
View file

@ -409,7 +409,8 @@
239 AUE_SENDFILE UNIMPL linux_sendfile64
240 AUE_NULL STD { int linux_sys_futex(void *uaddr, int op, int val, \
struct l_timespec *timeout, void *uaddr2, int val3); }
241 AUE_NULL UNIMPL linux_sched_setaffinity
241 AUE_NULL STD { int linux_sched_setaffinity(l_pid_t pid, l_uint len, \
l_ulong *user_mask_ptr); }
242 AUE_NULL STD { int linux_sched_getaffinity(l_pid_t pid, l_uint len, \
l_ulong *user_mask_ptr); }
243 AUE_NULL STD { int linux_set_thread_area(struct l_user_desc *desc); }