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ANDROID: GKI: Export put_task_stack symbol

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We need dump task->stack in kernel module for debug usage,
call try_get_task_stack to lock task->stack, and
try_get_task_stack/put_task_stack should call in pairs,
but put_task_stack is not exported

Bug: 192990535
Change-Id: Ifb2f3d16f93039bffeb3e822bc066e42e2d21d13
Signed-off-by: chunhui.li <chunhui.li@mediatek.com>
This commit is contained in:
chunhui.li
2021-07-08 18:57:06 +08:00
committed by Matthias Maennich
parent 288805c86a
commit 9c2958f454
1 changed files with 1 additions and 0 deletions
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kernel/fork.c
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@@ -443,6 +443,7 @@ void put_task_stack(struct task_struct *tsk)
if (refcount_dec_and_test(&tsk->stack_refcount)) if (refcount_dec_and_test(&tsk->stack_refcount))
release_task_stack(tsk); release_task_stack(tsk);
} }
EXPORT_SYMBOL_GPL(put_task_stack);
#endif #endif
void free_task(struct task_struct *tsk) void free_task(struct task_struct *tsk)