> paolo <at> paolo-desktop:~/linux-2.6/mm$ grep "struct file_operations" *
> shmem.c:static const struct file_operations shmem_file_operations;
> shmem.c:static const struct file_operations shmem_file_operations = {
> swapfile.c:static const struct file_operations proc_swaps_operations = {
> 
> Am I right in saying that both the files don't need to be modified?

If they don't have an ioctl handler they don't need to be modified, correct.

> 
> There is nothing like:
> struct file_operations xyz_ops = {
>        ...
>        .ioctl = xyz_ioctl
> };
> 
> in there.
> 
> So I guess I need a smarter trick to find out which files need to be modified
> as you previously suggested.

grep -P '\.ioctl.*=' $(grep -rl 'struct file_operations' * )

should work. There are also special multiline greps iirc that might also be able
to do this better (like sgrep)

-Andi
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