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

lockdep: Change hardirq{s_enabled,_context} to per-cpu variables

Browse Source 
Currently all IRQ-tracking state is in task_struct, this means that
task_struct needs to be defined before we use it.

Especially for lockdep_assert_irq*() this can lead to header-hell.

Move the hardirq state into per-cpu variables to avoid the task_struct
dependency.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200623083721.512673481@infradead.org
This commit is contained in:
Peter Zijlstra
2020-05-25 12:22:41 +02:00
parent a634291588
commit a21ee6055c
6 changed files with 52 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/sched.h
View File

@@ -990,8 +990,6 @@ struct task_struct {
unsigned long hardirq_disable_ip;
unsigned int hardirq_enable_event;
unsigned int hardirq_disable_event;
int hardirqs_enabled;
int hardirq_context;
u64 hardirq_chain_key;
unsigned long softirq_disable_ip;
unsigned long softirq_enable_ip;