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author | dchagin <dchagin@FreeBSD.org> | 2016-01-09 14:40:38 +0000 |
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committer | dchagin <dchagin@FreeBSD.org> | 2016-01-09 14:40:38 +0000 |
commit | fd9d33be2a51f313e557a77d61add75b4a80bedc (patch) | |
tree | 0b16992f86d0d5aae92d3865a01553fe6fe2609c /sys | |
parent | a07a85c065f084d084b8a1a0d5a42e79c99962e6 (diff) | |
download | FreeBSD-src-fd9d33be2a51f313e557a77d61add75b4a80bedc.zip FreeBSD-src-fd9d33be2a51f313e557a77d61add75b4a80bedc.tar.gz |
MFC r283374:
In preparation for switching linuxulator to the use the native 1:1
threads refactor kern_sched_rr_get_interval() and sys_sched_rr_get_interval().
Add a kern_sched_rr_get_interval() counterpart which takes a targettd
parameter to allow specify target thread directly by callee (new Linuxulator).
Linuxulator temporarily uses first thread in proc.
Move linux_sched_rr_get_interval() to the MI part.
Diffstat (limited to 'sys')
-rw-r--r-- | sys/amd64/linux32/linux32_machdep.c | 16 | ||||
-rw-r--r-- | sys/compat/linux/linux_misc.c | 30 | ||||
-rw-r--r-- | sys/kern/p1003_1b.c | 19 | ||||
-rw-r--r-- | sys/sys/syscallsubr.h | 2 |
4 files changed, 48 insertions, 19 deletions
diff --git a/sys/amd64/linux32/linux32_machdep.c b/sys/amd64/linux32/linux32_machdep.c index 87a24fb..3906e96 100644 --- a/sys/amd64/linux32/linux32_machdep.c +++ b/sys/amd64/linux32/linux32_machdep.c @@ -924,22 +924,6 @@ linux_getrusage(struct thread *td, struct linux_getrusage_args *uap) } int -linux_sched_rr_get_interval(struct thread *td, - struct linux_sched_rr_get_interval_args *uap) -{ - struct timespec ts; - struct l_timespec ts32; - int error; - - error = kern_sched_rr_get_interval(td, uap->pid, &ts); - if (error != 0) - return (error); - ts32.tv_sec = ts.tv_sec; - ts32.tv_nsec = ts.tv_nsec; - return (copyout(&ts32, uap->interval, sizeof(ts32))); -} - -int linux_set_thread_area(struct thread *td, struct linux_set_thread_area_args *args) { diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c index 2bc91be..cb6c038 100644 --- a/sys/compat/linux/linux_misc.c +++ b/sys/compat/linux/linux_misc.c @@ -1926,3 +1926,33 @@ linux_sched_setaffinity(struct thread *td, return (sys_cpuset_setaffinity(td, &csa)); } + +int +linux_sched_rr_get_interval(struct thread *td, + struct linux_sched_rr_get_interval_args *uap) +{ + struct timespec ts; + struct l_timespec lts; + struct thread *tdt; + struct proc *p; + int error; + + if (uap->pid == 0) { + tdt = td; + p = tdt->td_proc; + PROC_LOCK(p); + } else { + p = pfind(uap->pid); + if (p == NULL) + return (ESRCH); + tdt = FIRST_THREAD_IN_PROC(p); + } + + error = kern_sched_rr_get_interval_td(td, tdt, &ts); + PROC_UNLOCK(p); + if (error != 0) + return (error); + lts.tv_sec = ts.tv_sec; + lts.tv_nsec = ts.tv_nsec; + return (copyout(<s, uap->interval, sizeof(lts))); +} diff --git a/sys/kern/p1003_1b.c b/sys/kern/p1003_1b.c index fb89efc..3d1656a 100644 --- a/sys/kern/p1003_1b.c +++ b/sys/kern/p1003_1b.c @@ -296,13 +296,26 @@ kern_sched_rr_get_interval(struct thread *td, pid_t pid, targettd = FIRST_THREAD_IN_PROC(targetp); } - e = p_cansee(td, targetp); - if (e == 0) - e = ksched_rr_get_interval(ksched, targettd, ts); + e = kern_sched_rr_get_interval_td(td, targettd, ts); PROC_UNLOCK(targetp); return (e); } +int +kern_sched_rr_get_interval_td(struct thread *td, struct thread *targettd, + struct timespec *ts) +{ + struct proc *p; + int error; + + p = targettd->td_proc; + PROC_LOCK_ASSERT(p, MA_OWNED); + + error = p_cansee(td, p); + if (error == 0) + error = ksched_rr_get_interval(ksched, targettd, ts); + return (error); +} #endif static void diff --git a/sys/sys/syscallsubr.h b/sys/sys/syscallsubr.h index bdb2500..94ff523 100644 --- a/sys/sys/syscallsubr.h +++ b/sys/sys/syscallsubr.h @@ -197,6 +197,8 @@ int kern_rmdirat(struct thread *td, int fd, char *path, enum uio_seg pathseg); int kern_sched_rr_get_interval(struct thread *td, pid_t pid, struct timespec *ts); +int kern_sched_rr_get_interval_td(struct thread *td, struct thread *targettd, + struct timespec *ts); int kern_semctl(struct thread *td, int semid, int semnum, int cmd, union semun *arg, register_t *rval); int kern_select(struct thread *td, int nd, fd_set *fd_in, fd_set *fd_ou, |