[S390] cio: Memory allocation for idset changed.
[S390] cio: Memory allocation for idset changed.

Memory allocation for the quite huge idset changed from
kzalloc to vmalloc.

Signed-off-by: Michael Ernst <11a9c377ad093f427b984cb9a06c7323c353265a@de.ibm.com>
Signed-off-by: Martin Schwidefsky <52616596d8f5df0d597e85ab515377f92f939c68@de.ibm.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs