lkml.org 
[lkml]   [2012]   [Feb]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH RFC tip/core/rcu 19/41] rcu: Streamline code produced by __rcu_read_unlock()
    Date
    From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>

    This is a port of commit #be0e1e21 to TINY_PREEMPT_RCU. This uses
    noinline to prevent rcu_read_unlock_special() from being inlined into
    __rcu_read_unlock().

    Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
    ---
    kernel/rcutiny_plugin.h | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
    index 6cba20b..9fbb911 100644
    --- a/kernel/rcutiny_plugin.h
    +++ b/kernel/rcutiny_plugin.h
    @@ -544,7 +544,7 @@ EXPORT_SYMBOL_GPL(__rcu_read_lock);
    * notify RCU core processing or task having blocked during the RCU
    * read-side critical section.
    */
    -static void rcu_read_unlock_special(struct task_struct *t)
    +static noinline void rcu_read_unlock_special(struct task_struct *t)
    {
    int empty;
    int empty_exp;
    --
    1.7.8


    \
     
     \ /
      Last update: 2012-02-01 20:47    [W:0.020 / U:60.292 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site