Re: [BK-2.4] [PATCH] Small do_mmap_pgoff correction

["David S. Miller" <davem@redhat.com>]

   From: DervishD <raul@pleyades.net>
   Date: Tue, 10 Dec 2002 23:28:42 +0100
   
   > How about something like:
   > 
   > 	if (len == 0)
   > 		return addr;
   > 
   > 	len = PAGE_ALIGN(len);
   > 	if (len > TASK_SIZE || len == 0)
   > 		return -EINVAL;
   > 
   > That should cover all cases and not make the TASK_SIZE assumption.
   
       Perfect :) If you want, I can make the patch and tell to Alan and
   Linus. Anyway, I think you will better heared than me O:))
   
If you could take care of this, I would really be happy.

       Anyway, I'll take a look at a new macro (lets say PAGE_ALIGN_SIZE
   or something as ugly as this ;)))
   
How many places do we try to apply PAGE_ALIGN to a length?
If it's just one or two spots, perhaps the special macro
isn't worthwhile.