| Message ID | 20211111095008.264412-2-imbrenda@linux.ibm.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [RFC,v1,1/4] add arch mmput hook in exit.c | expand |
diff --git a/include/asm-generic/mmu_context.h b/include/asm-generic/mmu_context.h index 91727065bacb..900931a6a105 100644 --- a/include/asm-generic/mmu_context.h +++ b/include/asm-generic/mmu_context.h @@ -73,4 +73,8 @@ static inline void deactivate_mm(struct task_struct *tsk, } #endif +#ifndef arch_exit_mm_mmput +#define arch_exit_mm_mmput mmput +#endif + #endif /* __ASM_GENERIC_MMU_CONTEXT_H */ diff --git a/kernel/exit.c b/kernel/exit.c index f702a6a63686..6eb1fdcc434e 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -504,7 +504,7 @@ static void exit_mm(void) task_unlock(current); mmap_read_unlock(mm); mm_update_next_owner(mm); - mmput(mm); + arch_exit_mm_mmput(mm); if (test_thread_flag(TIF_MEMDIE)) exit_oom_victim(); }
This simple patch adds a hook for the mmput in exit_mm. This allows archs to perform the mmput in custom ways if desired (e.g. asynchronously) No functional change intended. Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com> --- include/asm-generic/mmu_context.h | 4 ++++ kernel/exit.c | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-)