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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-06-28 17:39:59 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-08-31 02:02:36 +0300 |
| commit | fcc878e4dfb70128a73857c609d70570629b0d9e (patch) | |
| tree | 6ab7a419797966d7c6f58a6f4562887b2eb09f45 /include/linux/sched.h | |
| parent | 27c744e32a9a4066daca0ee7496819bff78c1b37 (diff) | |
| download | linux-fcc878e4dfb70128a73857c609d70570629b0d9e.tar.xz | |
rcu: Remove now-unused ->b.exp_need_qs field from the rcu_special union
The ->b.exp_need_qs field is now set only to false, so this commit
removes it. The job this field used to do is now done by the rcu_data
structure's ->deferred_qs field, which is a consequence of a better
split between task-based (the rcu_node structure's ->exp_tasks field) and
CPU-based (the aforementioned rcu_data structure's ->deferred_qs field)
tracking of quiescent states for RCU-preempt expedited grace periods.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 977cb57d7bc9..004ca21f7e80 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -571,12 +571,8 @@ union rcu_special { struct { u8 blocked; u8 need_qs; - u8 exp_need_qs; - - /* Otherwise the compiler can store garbage here: */ - u8 pad; } b; /* Bits. */ - u32 s; /* Set of bits. */ + u16 s; /* Set of bits. */ }; enum perf_event_task_context { |