I've googled around and found most people advocating the use of kmalloc, as you're guaranteed to get contiguous physical blocks of memory. However, it also seems as though kmalloc can fail if a con...

Quite by chance stumbled upon some code in kernel jungles and was a bit confused. There are two implementations of kzalloc(): in tools/virtio/linux/kernel.h and the main one in linux/slab.h. Obviou...

Suppose we want to maintain a pool of memory in a device driver or module. How can that pool be created and be available to multiple processes lets say 4 processes, accessing this driver/module. ...

I'm writing a device driver that, among other things, allocates a block of memory with kmalloc. This memory is freed when the user program closes the file. In one of my experiments, the user progra...

What is the meaning of GFP flags in kmalloc? For instance GFP_KERNEL, GFP_ATOMIC?