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| author | Wang Kefeng <wangkefeng.wang@huawei.com> | 2021-09-22 15:56:28 +0200 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2021-10-19 11:34:55 +0200 |
| commit | 488cab12c37169687015fbdfa8be7b0da42f3146 (patch) | |
| tree | bf6b78bd5fd335b25c50b7da0529e25f708b5916 /arch/arm/mm | |
| parent | ARM: 9128/1: mm: Refactor the __do_page_fault() (diff) | |
| download | linux-488cab12c37169687015fbdfa8be7b0da42f3146.tar.xz linux-488cab12c37169687015fbdfa8be7b0da42f3146.zip | |
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 <wangkefeng.wang@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/fault.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 662ac3ca3c8a..249db395bdf0 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 |