lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 19 May 2014 06:06:52 -0700 From: tip-bot for Peter Zijlstra <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org, peterz@...radead.org, raistlin@...ux.it, linux-man@...r.kernel.org, tglx@...utronix.de, mtk.manpages@...il.com, juri.lelli@...il.com Subject: [tip:sched/core] peter_zijlstra-sched-change_sched_getparam_behaviour_vs_sched_deadline Commit-ID: 339d8f7bbf4a54fc09650b24ce505a4c04236bb3 Gitweb: http://git.kernel.org/tip/339d8f7bbf4a54fc09650b24ce505a4c04236bb3 Author: Peter Zijlstra <peterz@...radead.org> AuthorDate: Mon, 12 May 2014 22:50:34 +0200 Committer: Thomas Gleixner <tglx@...utronix.de> CommitDate: Mon, 19 May 2014 21:47:33 +0900 peter_zijlstra-sched-change_sched_getparam_behaviour_vs_sched_deadline The way we read POSIX one should only call sched_getparam() when sched_getscheduler() returns either SCHED_FIFO or SCHED_RR. Given that we currently return sched_param::sched_priority=0 for all others, extend the same behaviour to SCHED_DEADLINE. Cc: stable@...r.kernel.org Cc: Dario Faggioli <raistlin@...ux.it> Cc: linux-man <linux-man@...r.kernel.org> Cc: "Michael Kerrisk (man-pages)" <mtk.manpages@...il.com> Cc: Juri Lelli <juri.lelli@...il.com> Requested-by: Michael Kerrisk <mtk.manpages@...il.com> Acked-by: Michael Kerrisk <mtk.manpages@...il.com> Signed-off-by: Peter Zijlstra <peterz@...radead.org> Link: http://lkml.kernel.org/r/20140512205034.GH13467@laptop.programming.kicks-ass.net Signed-off-by: Thomas Gleixner <tglx@...utronix.de> --- kernel/sched/core.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index cdefcf7..f3f08bf 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3713,7 +3713,7 @@ SYSCALL_DEFINE1(sched_getscheduler, pid_t, pid) */ SYSCALL_DEFINE2(sched_getparam, pid_t, pid, struct sched_param __user *, param) { - struct sched_param lp; + struct sched_param lp = { .sched_priority = 0 }; struct task_struct *p; int retval; @@ -3730,11 +3730,8 @@ SYSCALL_DEFINE2(sched_getparam, pid_t, pid, struct sched_param __user *, param) if (retval) goto out_unlock; - if (task_has_dl_policy(p)) { - retval = -EINVAL; - goto out_unlock; - } - lp.sched_priority = p->rt_priority; + if (task_has_rt_policy(p)) + lp.sched_priority = p->rt_priority; rcu_read_unlock(); /* -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists