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

FROMLIST: freezer: Add frozen_or_skipped() helper function

Browse Source 
Occasionally it is necessary to see if a task is either frozen or
sleeping in the PF_FREEZER_SKIP state. In preparation for adding
additional users of this check, introduce a frozen_or_skipped() helper
function and convert the hung task detector over to using it.

Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/linux-arch/20210525151432.16875-16-will@kernel.org/
Bug: 186372082
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I138ffe2fae5a2da96df6f30d50d3a8a0dc61724c
This commit is contained in:
Will Deacon
2021-05-25 16:14:25 +01:00
committed by Will Deacon
parent 7b04b63e1c
commit 3128f5e30c
2 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/hung_task.c
View File

@@ -94,8 +94,8 @@ static void check_hung_task(struct task_struct *t, unsigned long timeout)
* Ensure the task is not frozen.
* Also, skip vfork and any other user process that freezer should skip.
*/
if (unlikely(t->flags & (PF_FROZEN | PF_FREEZER_SKIP)))
return;
if (unlikely(frozen_or_skipped(t)))
return;
/*
* When a freshly created task is scheduled once, changes its state to