函数源码

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source File:mm\filemap.c Create Date:2022-07-27 15:25:43
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/*
 * This is for filesystems which do not implement ->writepage.
 */
int generic_file_readonly_mmap(struct file *file, struct vm_area_struct *vma)
{
    if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE))
        return -EINVAL;
    return generic_file_mmap(file, vma);
}