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committed 2b291a074faxxxxxxxxxxFrom 9fcd5003c0363af140a06aba94e62c9e1ea0381e Mon Sep 17 00:00:00 2001From: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>Date: Mon, 11 Jan 2016 16:45:30 +0100Subject: [PATCH] Fix fusion: Unknown symbol tasklist_lock (err 0)Commit 28f6569ab7d0 renamed TREE_PREEMPT_RCU to PREEMPT_RCU in 3.19As a result, the code incorrectly falls back to using tasklist_lock(which was made private in 2.6.18)Always use rcu_read_lock on modern kernels.Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>--- linux/drivers/char/fusion/fusionee.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/linux/drivers/char/fusion/fusionee.c b/linux/drivers/char/fusion/fusionee.cindex ef067f5bc831..70cd0a665f98 100644--- a/linux/drivers/char/fusion/fusionee.c+++ b/linux/drivers/char/fusion/fusionee.c@@ -925,7 +925,7 @@ fusionee_kill(FusionDev * dev, if (f != fusionee && (!target || target == f->id)) { struct task_struct *p;-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) || defined(CONFIG_TINY_RCU) || defined(rcu_read_lock)+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) rcu_read_lock(); #else read_lock(&tasklist_lock);@@ -946,7 +946,7 @@ fusionee_kill(FusionDev * dev, } }-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) || defined(CONFIG_TINY_RCU) || defined(rcu_read_unlock)+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) rcu_read_unlock(); #else read_unlock(&tasklist_lock);