linux/mm
Andy Whitcroft 12b1c5f382 [PATCH] Remove bogus warning in page_alloc.c
Originally __free_pages_bulk used the relative page number within a zone to
define its buddies.  This meant that to maintain the "maximally aligned"
requirements (that an allocation of size N will be aligned at least to N
physically) zones had to also be aligned to 1<<MAX_ORDER pages.  When
__free_pages_bulk was updated to use the relative page frame numbers of the
free'd pages to pair buddies this released the alignment constraint on the
'left' edge of the zone.  This allows _either_ edge of the zone to contain
partial MAX_ORDER sized buddies.  These simply never will have matching
buddies and thus will never make it to the 'top' of the pyramid.

The patch below removes a now redundant check ensuring that the mem_map was
aligned to MAX_ORDER.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Cc: Christoph Lameter <christoph@lameter.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:25:54 -07:00
..
Kconfig [PATCH] sparsemem memory model 2005-06-23 09:45:04 -07:00
Makefile [PATCH] xip: fs/mm: execute in place 2005-06-24 00:06:41 -07:00
bootmem.c [PATCH] Use ALIGN to remove duplicate code 2005-06-25 16:25:02 -07:00
fadvise.c [PATCH] xip: madvice/fadvice: execute in place 2005-06-24 00:06:42 -07:00
filemap.c [PATCH] fix for generic_file_write iov problem 2005-06-25 16:24:39 -07:00
filemap.h [PATCH] xip: reduce code duplication 2005-06-24 00:06:41 -07:00
filemap_xip.c [PATCH] execute-in-place fixes 2005-07-15 09:54:50 -07:00
fremap.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
highmem.c [PATCH] count bounce buffer pages in vmstat 2005-05-01 08:58:37 -07:00
hugetlb.c [PATCH] Hugepage consolidation 2005-06-21 18:46:15 -07:00
internal.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
madvise.c [PATCH] madvise() does not always return -EBADF on non-file mapped area 2005-07-27 16:25:54 -07:00
memory.c [PATCH] check_user_page_readable() deadlock fix 2005-07-27 16:25:53 -07:00
mempolicy.c [PATCH] Undo mempolicy shared policy rbtree microoptimization 2005-07-27 16:25:52 -07:00
mempool.c [PATCH] propagate __nocast annotations 2005-07-07 18:23:46 -07:00
mincore.c [PATCH] freepgt: sys_mincore ignore FIRST_USER_PGD_NR 2005-04-19 13:29:20 -07:00
mlock.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mmap.c [PATCH] mmap topdown fix for large stack limit, large allocation 2005-06-21 18:46:16 -07:00
mprotect.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mremap.c [PATCH] mm acct accounting fix 2005-05-17 07:59:12 -07:00
msync.c [PATCH] msync: check pte dirty earlier 2005-06-21 18:46:21 -07:00
nommu.c [PATCH] Avoiding mmap fragmentation 2005-06-21 18:46:16 -07:00
oom_kill.c [PATCH] mm: quieten OOM killer noise 2005-07-07 18:23:36 -07:00
page-writeback.c [PATCH] rename wakeup_bdflush to wakeup_pdflush 2005-06-28 21:20:31 -07:00
page_alloc.c [PATCH] Remove bogus warning in page_alloc.c 2005-07-27 16:25:54 -07:00
page_io.c [PATCH] swsusp: kill config_pm_disk 2005-06-25 16:24:32 -07:00
pdflush.c [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
prio_tree.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
readahead.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rmap.c [PATCH] xip: fs/mm: execute in place 2005-06-24 00:06:41 -07:00
shmem.c [PATCH] shmem: restore superblock info 2005-06-21 18:46:18 -07:00
slab.c [PATCH] propagate __nocast annotations 2005-07-07 18:23:46 -07:00
sparse.c [PATCH] sparsemem hotplug base 2005-06-23 09:45:05 -07:00
swap.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
swap_state.c [PATCH] mm: use __GFP_NOMEMALLOC 2005-05-01 08:58:37 -07:00
swapfile.c [PATCH] can_share_swap_page: use page_mapcount 2005-06-21 18:46:21 -07:00
thrash.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tiny-shmem.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
truncate.c [PATCH] DocBook: fix some descriptions 2005-05-01 08:59:26 -07:00
vmalloc.c [PATCH] x86_64: Fixed guard page handling again in iounmap 2005-05-20 15:48:20 -07:00
vmscan.c [PATCH] rename wakeup_bdflush to wakeup_pdflush 2005-06-28 21:20:31 -07:00