From: Wang Kefeng Date: Wed, 22 Sep 2021 13:56:28 +0000 (+0100) Subject: ARM: 9129/1: mm: Kill task_struct argument for __do_page_fault() X-Git-Tag: v6.6.17~8946^2^3~15 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=488cab12c37169687015fbdfa8be7b0da42f3146;p=platform%2Fkernel%2Flinux-rpi.git ARM: 9129/1: mm: Kill task_struct argument for __do_page_fault() The __do_page_fault() won't use task_struct argument, kill it and also use current->mm directly in do_page_fault(). No functional change. Signed-off-by: Kefeng Wang Signed-off-by: Russell King (Oracle) --- diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 662ac3c..249db39 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -202,8 +202,7 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma) static vm_fault_t __kprobes __do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr, - unsigned int flags, struct task_struct *tsk, - struct pt_regs *regs) + unsigned int flags, struct pt_regs *regs) { struct vm_area_struct *vma = find_vma(mm, addr); if (unlikely(!vma)) @@ -231,8 +230,7 @@ __do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr, static int __kprobes do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { - struct task_struct *tsk; - struct mm_struct *mm; + struct mm_struct *mm = current->mm; int sig, code; vm_fault_t fault; unsigned int flags = FAULT_FLAG_DEFAULT; @@ -240,8 +238,6 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) if (kprobe_page_fault(regs, fsr)) return 0; - tsk = current; - mm = tsk->mm; /* Enable interrupts if they were enabled in the parent context. */ if (interrupts_enabled(regs)) @@ -285,7 +281,7 @@ retry: #endif } - fault = __do_page_fault(mm, addr, fsr, flags, tsk, regs); + fault = __do_page_fault(mm, addr, fsr, flags, regs); /* If we need to retry but a fatal signal is pending, handle the * signal first. We do not need to release the mmap_lock because