linux-kernel - [PATCH 1/2] sched/fair: make update_curr

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <1432641001.6866.58.camel@odin.com>
Date:	Tue, 26 May 2015 14:50:01 +0300
From:	Kirill Tkhai <ktkhai@...n.com>
To:	<linux-kernel@...r.kernel.org>
CC:	Peter Zijlstra <peterz@...radead.org>,
	Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
	Mohammed Naser <mnaser@...xhost.com>,
	"Ingo Molnar" <mingo@...nel.org>, Kirill Tkhai <tkhai@...dex.ru>
Subject: [PATCH 1/2] sched/fair: make update_curr_fair() update whole
 hierarhy

This patch makes update_curr_fair() similar to update_curr_rt(),
which updates runtime on whole hierarhy. We need that in next
patch.

Signed-off-by: Kirill Tkhai <ktkhai@...n.com>
---
 kernel/sched/fair.c |   13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index d597aea..ece94af 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -729,7 +729,18 @@ static void update_curr(struct cfs_rq *cfs_rq)
 
 static void update_curr_fair(struct rq *rq)
 {
-	update_curr(cfs_rq_of(&rq->curr->se));
+	struct task_struct *curr = rq->curr;
+	struct sched_entity *se;
+	struct cfs_rq *cfs_rq;
+
+	if (curr->sched_class != &fair_sched_class)
+		return;
+	se = &curr->se;
+	for_each_sched_entity(se) {
+		cfs_rq = cfs_rq_of(se);
+		update_curr(cfs_rq);
+	}
+
 }
 
 static inline void



--
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/