linux-kernel - [2/2] conditionally reschedule in hashtab

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Message-ID: <20140515190353.GB16816@redhat.com>
Date:	Thu, 15 May 2014 15:03:53 -0400
From:	Dave Jones <davej@...hat.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
Cc:	sds@...ho.nsa.gov, pmoore@...hat.com, eparis@...hat.com
Subject: [2/2] conditionally reschedule in hashtab_insert while loading
 selinux policy.

After silencing the sleeping warning in mls_convert_context() I started
seeing similar traces from hashtab_insert. Do a cond_resched there too.

Signed-off-by: Dave Jones <davej@...hat.com>

diff --git a/security/selinux/ss/hashtab.c b/security/selinux/ss/hashtab.c
index 933e735bb185..2cc496149842 100644
--- a/security/selinux/ss/hashtab.c
+++ b/security/selinux/ss/hashtab.c
@@ -6,6 +6,7 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
+#include <linux/sched.h>
 #include "hashtab.h"

 struct hashtab *hashtab_create(u32 (*hash_value)(struct hashtab *h, const void *key),
@@ -40,6 +41,8 @@ int hashtab_insert(struct hashtab *h, void *key, void *datum)
 	u32 hvalue;
 	struct hashtab_node *prev, *cur, *newnode;

+	cond_resched();
+
 	if (!h || h->nel == HASHTAB_MAX_NODES)
 		return -EINVAL;

-- 
1.9.0

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