12 Nov
2014
12 Nov
'14
12:36 a.m.
On Tue, 11 Nov 2014, Andrew Morton wrote:
There's no point in doing
#define GFP_SLAB_BUG_MASK (__GFP_DMA32|__GFP_HIGHMEM|~__GFP_BITS_MASK)
because __GFP_DMA32|__GFP_HIGHMEM are already part of ~__GFP_BITS_MASK.
?? ~__GFP_BITS_MASK means bits 25 to 31 are set.
__GFP_DMA32 is bit 2 and __GFP_HIGHMEM is bit 1.