[RFC 4/4] slub: Remove preemption disable/enable from fastpath

2014-10-22 Thread Christoph Lameter
We can now use a this_cpu_cmpxchg_double to update two 64 bit values that are the entire description of the per cpu freelist. There is no need anymore to disable preempt. Signed-off-by: Christoph Lameter Index: linux/mm/slub.c ===

[RFC 4/4] slub: Remove preemption disable/enable from fastpath

2014-10-22 Thread Christoph Lameter
We can now use a this_cpu_cmpxchg_double to update two 64 bit values that are the entire description of the per cpu freelist. There is no need anymore to disable preempt. Signed-off-by: Christoph Lameter c...@linux.com Index: linux/mm/slub.c