Hi... > So if some memory needs to be swapped out to disk (in order to free > memory that can be returned to the process calling kmalloc), I > understand Disk IO should suffice. But my doubt is how can a > filesystem IO help to free memory (so that it can be returned to the > process calling kmalloc)? I hope I also got your point... Think about a scenario where the swap area is actually a file stored inside formatted partition (let's say ext2). Thus, it will first generate filesystem operation, right? regards, Mulyadi. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/