difference bigphysarea patch and kmalloc

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hey everyone,

is there a difference between kmalloc(size, GFP_KERNEL | GFP_DMA) and 
bigphysarea_alloc (size). I god a driver that use the bigphysarea patch and I 
changed it to use kmalloc (because for my kernel version there is no patch) 
and it worked. So my question is, is the bigphysarea patch arcade and kmalloc 
can allocate enough continuous memory or did I just added on error to the 
driver ;-).

Oh I use the 3.6.24.3 Kernel

greetings mosta

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