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author | dchagin <dchagin@FreeBSD.org> | 2016-01-09 14:44:41 +0000 |
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committer | dchagin <dchagin@FreeBSD.org> | 2016-01-09 14:44:41 +0000 |
commit | 0553d7262b395939b0a1e995f66c12c0ffca33c2 (patch) | |
tree | cb6b662d8b47dd492cecafa6a6bffb42dec96a6c /sys/kern | |
parent | f8883c94b256f21d4a5e539b6c728690ff9c75de (diff) | |
download | FreeBSD-src-0553d7262b395939b0a1e995f66c12c0ffca33c2.zip FreeBSD-src-0553d7262b395939b0a1e995f66c12c0ffca33c2.tar.gz |
MFC r283377:
In preparation for switching linuxulator to the use the native 1:1
threads split sys_sched_getparam(), sys_sched_setparam(),
sys_sched_getscheduler(), sys_sched_setscheduler() to their kern_*
counterparts and add targettd parameter to allow specify the target
thread directly by callee.
Diffstat (limited to 'sys/kern')
-rw-r--r-- | sys/kern/p1003_1b.c | 102 |
1 files changed, 78 insertions, 24 deletions
diff --git a/sys/kern/p1003_1b.c b/sys/kern/p1003_1b.c index 3d1656a..ac6cd60 100644 --- a/sys/kern/p1003_1b.c +++ b/sys/kern/p1003_1b.c @@ -130,16 +130,29 @@ sys_sched_setparam(struct thread *td, struct sched_setparam_args *uap) targettd = FIRST_THREAD_IN_PROC(targetp); } - e = p_cansched(td, targetp); - if (e == 0) { - e = ksched_setparam(ksched, targettd, - (const struct sched_param *)&sched_param); - } + e = kern_sched_setparam(td, targettd, &sched_param); PROC_UNLOCK(targetp); return (e); } int +kern_sched_setparam(struct thread *td, struct thread *targettd, + struct sched_param *param) +{ + struct proc *targetp; + int error; + + targetp = targettd->td_proc; + PROC_LOCK_ASSERT(targetp, MA_OWNED); + + error = p_cansched(td, targetp); + if (error == 0) + error = ksched_setparam(ksched, targettd, + (const struct sched_param *)param); + return (error); +} + +int sys_sched_getparam(struct thread *td, struct sched_getparam_args *uap) { int e; @@ -159,10 +172,7 @@ sys_sched_getparam(struct thread *td, struct sched_getparam_args *uap) targettd = FIRST_THREAD_IN_PROC(targetp); } - e = p_cansee(td, targetp); - if (e == 0) { - e = ksched_getparam(ksched, targettd, &sched_param); - } + e = kern_sched_getparam(td, targettd, &sched_param); PROC_UNLOCK(targetp); if (e == 0) e = copyout(&sched_param, uap->param, sizeof(sched_param)); @@ -170,6 +180,22 @@ sys_sched_getparam(struct thread *td, struct sched_getparam_args *uap) } int +kern_sched_getparam(struct thread *td, struct thread *targettd, + struct sched_param *param) +{ + struct proc *targetp; + int error; + + targetp = targettd->td_proc; + PROC_LOCK_ASSERT(targetp, MA_OWNED); + + error = p_cansee(td, targetp); + if (error == 0) + error = ksched_getparam(ksched, targettd, param); + return (error); +} + +int sys_sched_setscheduler(struct thread *td, struct sched_setscheduler_args *uap) { int e; @@ -177,11 +203,6 @@ sys_sched_setscheduler(struct thread *td, struct sched_setscheduler_args *uap) struct thread *targettd; struct proc *targetp; - /* Don't allow non root user to set a scheduler policy. */ - e = priv_check(td, PRIV_SCHED_SET); - if (e) - return (e); - e = copyin(uap->param, &sched_param, sizeof(sched_param)); if (e) return (e); @@ -197,16 +218,35 @@ sys_sched_setscheduler(struct thread *td, struct sched_setscheduler_args *uap) targettd = FIRST_THREAD_IN_PROC(targetp); } - e = p_cansched(td, targetp); - if (e == 0) { - e = ksched_setscheduler(ksched, targettd, - uap->policy, (const struct sched_param *)&sched_param); - } + e = kern_sched_setscheduler(td, targettd, uap->policy, + &sched_param); PROC_UNLOCK(targetp); return (e); } int +kern_sched_setscheduler(struct thread *td, struct thread *targettd, + int policy, struct sched_param *param) +{ + struct proc *targetp; + int error; + + targetp = targettd->td_proc; + PROC_LOCK_ASSERT(targetp, MA_OWNED); + + /* Don't allow non root user to set a scheduler policy. */ + error = priv_check(td, PRIV_SCHED_SET); + if (error) + return (error); + + error = p_cansched(td, targetp); + if (error == 0) + error = ksched_setscheduler(ksched, targettd, policy, + (const struct sched_param *)param); + return (error); +} + +int sys_sched_getscheduler(struct thread *td, struct sched_getscheduler_args *uap) { int e, policy; @@ -224,17 +264,31 @@ sys_sched_getscheduler(struct thread *td, struct sched_getscheduler_args *uap) targettd = FIRST_THREAD_IN_PROC(targetp); } - e = p_cansee(td, targetp); - if (e == 0) { - e = ksched_getscheduler(ksched, targettd, &policy); - td->td_retval[0] = policy; - } + e = kern_sched_getscheduler(td, targettd, &policy); PROC_UNLOCK(targetp); + if (e == 0) + td->td_retval[0] = policy; return (e); } int +kern_sched_getscheduler(struct thread *td, struct thread *targettd, + int *policy) +{ + struct proc *targetp; + int error; + + targetp = targettd->td_proc; + PROC_LOCK_ASSERT(targetp, MA_OWNED); + + error = p_cansee(td, targetp); + if (error == 0) + error = ksched_getscheduler(ksched, targettd, policy); + return (error); +} + +int sys_sched_yield(struct thread *td, struct sched_yield_args *uap) { |