0003-Fix-fusion-Unknown-symbol-tasklist_lock-err-0.patch 1.6 KB

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  1. From 9fcd5003c0363af140a06aba94e62c9e1ea0381e Mon Sep 17 00:00:00 2001
  2. From: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
  3. Date: Mon, 11 Jan 2016 16:45:30 +0100
  4. Subject: [PATCH] Fix fusion: Unknown symbol tasklist_lock (err 0)
  5. Commit 28f6569ab7d0 renamed TREE_PREEMPT_RCU to PREEMPT_RCU in 3.19
  6. As a result, the code incorrectly falls back to using tasklist_lock
  7. (which was made private in 2.6.18)
  8. Always use rcu_read_lock on modern kernels.
  9. Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
  10. ---
  11. linux/drivers/char/fusion/fusionee.c | 4 ++--
  12. 1 file changed, 2 insertions(+), 2 deletions(-)
  13. diff --git a/linux/drivers/char/fusion/fusionee.c b/linux/drivers/char/fusion/fusionee.c
  14. index ef067f5bc831..70cd0a665f98 100644
  15. --- a/linux/drivers/char/fusion/fusionee.c
  16. +++ b/linux/drivers/char/fusion/fusionee.c
  17. @@ -925,7 +925,7 @@ fusionee_kill(FusionDev * dev,
  18. if (f != fusionee && (!target || target == f->id)) {
  19. struct task_struct *p;
  20. -#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) || defined(CONFIG_TINY_RCU) || defined(rcu_read_lock)
  21. +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
  22. rcu_read_lock();
  23. #else
  24. read_lock(&tasklist_lock);
  25. @@ -946,7 +946,7 @@ fusionee_kill(FusionDev * dev,
  26. }
  27. }
  28. -#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) || defined(CONFIG_TINY_RCU) || defined(rcu_read_unlock)
  29. +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
  30. rcu_read_unlock();
  31. #else
  32. read_unlock(&tasklist_lock);