xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rcu: Shrink ->dynticks_{nmi_,}nesting from long long to long

Browse Source 
Because the ->dynticks_nesting field now only contains the process-based
nesting level instead of a value encoding both the process nesting level
and the irq "nesting" level, we no longer need a long long, even on
32-bit systems.  This commit therefore changes both the ->dynticks_nesting
and ->dynticks_nmi_nesting fields to long.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney
2017-10-04 15:55:16 -07:00
parent bd2b879a1c
commit 84585aa8b6
5 changed files with 11 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/rcu/tree.h
View File

@@ -38,8 +38,8 @@
* Dynticks per-CPU state.
*/
struct rcu_dynticks {
long long dynticks_nesting; /* Track irq/process nesting level. */
int dynticks_nmi_nesting; /* Track NMI nesting level. */
long dynticks_nesting; /* Track process nesting level. */
long dynticks_nmi_nesting; /* Track irq/NMI nesting level. */
atomic_t dynticks; /* Even value for idle, else odd. */
bool rcu_need_heavy_qs; /* GP old, need heavy quiescent state. */
unsigned long rcu_qs_ctr; /* Light universal quiescent state ctr. */