Author: dchagin Date: Sun May 24 14:45:57 2015 New Revision: 283379 URL: https://svnweb.freebsd.org/changeset/base/283379
Log: Implement a Linux version of sched_getparam() && sched_setparam(). Temporarily use the first thread in proc. Differential Revision: https://reviews.freebsd.org/D1036 Reviewed by: trasz Modified: head/sys/amd64/linux32/syscalls.master head/sys/compat/linux/linux_misc.c head/sys/i386/linux/syscalls.master Modified: head/sys/amd64/linux32/syscalls.master ============================================================================== --- head/sys/amd64/linux32/syscalls.master Sun May 24 14:44:57 2015 (r283378) +++ head/sys/amd64/linux32/syscalls.master Sun May 24 14:45:57 2015 (r283379) @@ -267,10 +267,10 @@ 151 AUE_MUNLOCK NOPROTO { int munlock(const void *addr, size_t len); } 152 AUE_MLOCKALL NOPROTO { int mlockall(int how); } 153 AUE_MUNLOCKALL NOPROTO { int munlockall(void); } -154 AUE_SCHED_SETPARAM NOPROTO { int sched_setparam(pid_t pid, \ - const struct sched_param *param); } -155 AUE_SCHED_GETPARAM NOPROTO { int sched_getparam(pid_t pid, \ - struct sched_param *param); } +154 AUE_SCHED_SETPARAM STD { int linux_sched_setparam(l_pid_t pid, \ + struct l_sched_param *param); } +155 AUE_SCHED_GETPARAM STD { int linux_sched_getparam(l_pid_t pid, \ + struct l_sched_param *param); } 156 AUE_SCHED_SETSCHEDULER STD { int linux_sched_setscheduler( \ l_pid_t pid, l_int policy, \ struct l_sched_param *param); } Modified: head/sys/compat/linux/linux_misc.c ============================================================================== --- head/sys/compat/linux/linux_misc.c Sun May 24 14:44:57 2015 (r283378) +++ head/sys/compat/linux/linux_misc.c Sun May 24 14:45:57 2015 (r283379) @@ -1873,6 +1873,78 @@ linux_prctl(struct thread *td, struct li return (error); } +int +linux_sched_setparam(struct thread *td, + struct linux_sched_setparam_args *uap) +{ + struct sched_param sched_param; + struct thread *tdt; + struct proc *p; + int error; + +#ifdef DEBUG + if (ldebug(sched_setparam)) + printf(ARGS(sched_setparam, "%d, *"), uap->pid); +#endif + + error = copyin(uap->param, &sched_param, sizeof(sched_param)); + if (error) + return (error); + + if (uap->pid == 0) { + tdt = td; + p = tdt->td_proc; + PROC_LOCK(p); + } else { + p = pfind(uap->pid); + if (p == NULL) + return (ESRCH); + /* + * XXX. Scheduling parameters are in fact per-thread + * attributes in Linux. Temporarily use the first + * thread in proc. The same for get_param(). + */ + tdt = FIRST_THREAD_IN_PROC(p); + } + + error = kern_sched_setparam(td, tdt, &sched_param); + PROC_UNLOCK(p); + return (error); +} + +int +linux_sched_getparam(struct thread *td, + struct linux_sched_getparam_args *uap) +{ + struct sched_param sched_param; + struct thread *tdt; + struct proc *p; + int error; + +#ifdef DEBUG + if (ldebug(sched_getparam)) + printf(ARGS(sched_getparam, "%d, *"), uap->pid); +#endif + + 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_getparam(td, tdt, &sched_param); + PROC_UNLOCK(p); + if (error == 0) + error = copyout(&sched_param, uap->param, + sizeof(sched_param)); + return (error); +} + /* * Get affinity of a process. */ Modified: head/sys/i386/linux/syscalls.master ============================================================================== --- head/sys/i386/linux/syscalls.master Sun May 24 14:44:57 2015 (r283378) +++ head/sys/i386/linux/syscalls.master Sun May 24 14:45:57 2015 (r283379) @@ -269,10 +269,10 @@ 151 AUE_MUNLOCK NOPROTO { int munlock(const void *addr, size_t len); } 152 AUE_MLOCKALL NOPROTO { int mlockall(int how); } 153 AUE_MUNLOCKALL NOPROTO { int munlockall(void); } -154 AUE_SCHED_SETPARAM NOPROTO { int sched_setparam(pid_t pid, \ - const struct sched_param *param); } -155 AUE_SCHED_GETPARAM NOPROTO { int sched_getparam(pid_t pid, \ - struct sched_param *param); } +154 AUE_SCHED_SETPARAM STD { int linux_sched_setparam(l_pid_t pid, \ + struct l_sched_param *param); } +155 AUE_SCHED_GETPARAM STD { int linux_sched_getparam(l_pid_t pid, \ + struct l_sched_param *param); } 156 AUE_SCHED_SETSCHEDULER STD { int linux_sched_setscheduler( \ l_pid_t pid, l_int policy, \ struct l_sched_param *param); } _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
