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sorry I have not express my idea clearly,what i want is to get
absolute
pathname in lkm .if the process is the current process ,this
is quite
easy,just d_path kind of call,if the process is not the
current process
It seems d_path works when you travel the tasklist.code as
such:
vma = p->mm->mmap;
entry = vma->vm_file->f_dentry;
d_path(entry,vma->vm_file->f_vfsmnt,buf,sizeof(buf));
(__d_path is changed a little without using the current process lock)
When i try to get the absolute name in send_sig_info
function in order to control current process could send what sig to which
process,,use __d_path make system oops why? and corrent solution |
