From: David S. Miller Date: Mon, 24 Mar 2008 09:50:48 +0000 (+1100) Subject: [LMB] Add lmb_alloc_nid() X-Git-Tag: v2.6.26-rc1~1125^2~50 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c50f68c8aea421267ba7995b1c485c281b28add6;p=pandora-kernel.git [LMB] Add lmb_alloc_nid() A variant of lmb_alloc() that tries to allocate memory on a specified NUMA node 'nid' but falls back to normal lmb_alloc() if that fails. The caller provides a 'nid_range' function pointer which assists the allocator. It is given args 'start', 'end', and pointer to integer 'this_nid'. It places at 'this_nid' the NUMA node id that corresponds to 'start', and returns the end address within 'start' to 'end' at which memory assosciated with 'nid' ends. This callback allows a platform to use lmb_alloc_nid() in just about any context, even ones in which early_pfn_to_nid() might not be working yet. This function will be used by the NUMA setup code on sparc64, and also it can be used by powerpc, replacing it's hand crafted "careful_allocation()" function in arch/powerpc/mm/numa.c If x86 ever converts it's NUMA support over to using the LMB helpers, it can use this too as it has something entirely similar. Signed-off-by: David S. Miller Signed-off-by: Paul Mackerras --- Reading git-diff-tree failed