Hi,

On Fri, Jul 19, 2013 at 12:53 PM, Saket Sinha [off-list ref] wrote:

 Normally, we DON'T do any high level IOs from Kernel space (file
creation/reading, and so on). But here in my driver I am  stacking FS
drivers, I can't avoid this. This is partly because Linux kernel can't
handle FS stacking (this wouldn't be an issue for Windows, for instance,
which supports stacking),

You can even use filp_open(), vfs_read(), vfs_write() if sys_* is not available
https://github.com/prashants/km/blob/master/filerw/filerw.c

Regards.