diff options
Diffstat (limited to 'kernel/events/uprobes.c')
| -rw-r--r-- | kernel/events/uprobes.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index cdc3c951251c..bb30a4fc5050 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -112,14 +112,9 @@ static bool valid_vma(struct vm_area_struct *vma, bool is_register) return false; } -static loff_t vma_address(struct vm_area_struct *vma, loff_t offset) +static unsigned long offset_to_vaddr(struct vm_area_struct *vma, loff_t offset) { - loff_t vaddr; - - vaddr = vma->vm_start + offset; - vaddr -= (loff_t)vma->vm_pgoff << PAGE_SHIFT; - - return vaddr; + return vma->vm_start + offset - ((loff_t)vma->vm_pgoff << PAGE_SHIFT); } static loff_t vaddr_to_offset(struct vm_area_struct *vma, unsigned long vaddr) @@ -775,7 +770,7 @@ build_map_info(struct address_space *mapping, loff_t offset, bool is_register) curr = info; info->mm = vma->vm_mm; - info->vaddr = vma_address(vma, offset); + info->vaddr = offset_to_vaddr(vma, offset); } mutex_unlock(&mapping->i_mmap_mutex); @@ -1042,7 +1037,7 @@ int uprobe_mmap(struct vm_area_struct *vma) list_for_each_entry_safe(uprobe, u, &tmp_list, pending_list) { if (!ret) { - loff_t vaddr = vma_address(vma, uprobe->offset); + unsigned long vaddr = offset_to_vaddr(vma, uprobe->offset); ret = install_breakpoint(uprobe, vma->vm_mm, vma, vaddr); /* @@ -1103,7 +1098,7 @@ void uprobe_munmap(struct vm_area_struct *vma, unsigned long start, unsigned lon build_probe_list(inode, vma, start, end, &tmp_list); list_for_each_entry_safe(uprobe, u, &tmp_list, pending_list) { - loff_t vaddr = vma_address(vma, uprobe->offset); + unsigned long vaddr = offset_to_vaddr(vma, uprobe->offset); /* * An unregister could have removed the probe before * unmap. So check before we decrement the count. |