Bob Picco e984bb43f7 [PATCH] Align the node_mem_map endpoints to a MAX_ORDER boundary ... Andy added code to buddy allocator which does not require the zone's endpoints to be aligned to MAX_ORDER. An issue is that the buddy allocator requires the node_mem_map's endpoints to be MAX_ORDER aligned. Otherwise __page_find_buddy could compute a buddy not in node_mem_map for partial MAX_ORDER regions at zone's endpoints. page_is_buddy will detect that these pages at endpoints are not PG_buddy (they were zeroed out by bootmem allocator and not part of zone). Of course the negative here is we could waste a little memory but the positive is eliminating all the old checks for zone boundary conditions. SPARSEMEM won't encounter this issue because of MAX_ORDER size constraint when SPARSEMEM is configured. ia64 VIRTUAL_MEM_MAP doesn't need the logic either because the holes and endpoints are handled differently. This leaves checking alloc_remap and other arches which privately allocate for node_mem_map. Signed-off-by: Bob Picco <bob.picco@hp.com> Acked-by: Mel Gorman <mel@csn.ul.ie> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-05-21 12:59:22 -07:00
..
bootmem.c
fadvise.c
filemap.c	[PATCH] Add find_get_pages_contig(): contiguous variant of find_get_pages()	2006-04-27 08:59:48 +02:00
filemap.h
filemap_xip.c
fremap.c
highmem.c
hugetlb.c
internal.h
Kconfig
madvise.c
Makefile
memory.c
memory_hotplug.c	[PATCH] spufs: fix for CONFIG_NUMA	2006-05-01 18:17:46 -07:00
mempolicy.c	[PATCH] Remove cond_resched in gather_stats()	2006-04-20 07:54:03 -07:00
mempool.c
migrate.c	[PATCH] page migration: Fix fallback behavior for dirty pages	2006-05-01 18:17:45 -07:00
mincore.c
mlock.c
mmap.c
mmzone.c
mprotect.c
mremap.c
msync.c
nommu.c
oom_kill.c	[PATCH] mm: fix mm_struct reference counting bugs in mm/oom_kill.c	2006-04-19 09:13:50 -07:00
page-writeback.c
page_alloc.c	[PATCH] Align the node_mem_map endpoints to a MAX_ORDER boundary	2006-05-21 12:59:22 -07:00
page_io.c
pdflush.c
prio_tree.c
readahead.c
rmap.c
shmem.c	[PATCH] add migratepage address space op to shmem	2006-04-22 09:19:52 -07:00
slab.c	[PATCH] slab: Fix kmem_cache_destroy() on NUMA	2006-05-16 07:59:32 -07:00
slob.c	[PATCH] mm/slob.c: for_each_possible_cpu(), not NR_CPUS	2006-04-19 09:13:49 -07:00
sparse.c	[PATCH] SPARSEMEM incorrectly calculates section number	2006-05-21 12:59:17 -07:00
swap.c
swap_state.c
swapfile.c
thrash.c
tiny-shmem.c
truncate.c
util.c
vmalloc.c
vmscan.c	[PATCH] Remove __devinit and __cpuinit from notifier_call definitions	2006-04-26 08:30:03 -07:00