On Tue, Sep 29, 2015 at 02:44:02AM +0200, Greg KH wrote:

On Mon, Sep 28, 2015 at 11:43:55PM +0530, Chandra S Gorentla wrote:

quoted

 - The message queue is replaced with standard Linux linked list
 - kmem_cache is used for list members

Why?

The list entires are of fixed type and repeatedly allocated and deallocated
for messages.

quoted

 - A check for return value of receive method is added
 - GFP_ATOMIC is changed to GFP_KERNEL

Why?  Are you sure that is safe?

The allocations are moved out of 'spin_lock_irqsave' and
'spin_unlock_irqrestore'.  Hence they are safe.

quoted

 - A few other related minor changes

Be specific please.

OK.  I will try to send seperate patches.

thanks,

greg k-h

Thank you,
chandra