Andrea Arcangeli 33a938774f mm: compaction: don't depend on HUGETLB_PAGE ... Commit 5d6892407 ("thp: select CONFIG_COMPACTION if TRANSPARENT_HUGEPAGE enabled") causes this warning during the configuration process: warning: (TRANSPARENT_HUGEPAGE) selects COMPACTION which has unmet direct dependencies (EXPERIMENTAL && HUGETLB_PAGE && MMU) COMPACTION doesn't depend on HUGETLB_PAGE, it doesn't depend on THP either, it is also useful for regular alloc_pages(order > 0) including the very kernel stack during fork (THREAD_ORDER = 1). It's always better to enable COMPACTION. The warning should be an error because we would end up with MIGRATION not selected, and COMPACTION wouldn't work without migration (despite it seems to build with an inline migrate_pages returning -ENOSYS). I'd also like to remove EXPERIMENTAL: compaction has been in the kernel for some releases (for full safety the default remains disabled which I think is enough). Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Reported-by: Luca Tettamanti <kronos.it@gmail.com> Tested-by: Luca Tettamanti <kronos.it@gmail.com> Cc: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-01-26 10:50:02 +10:00
..
backing-dev.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-10-26 17:58:44 -07:00
bootmem.c	x86, memblock: Replace e820_/_early string with memblock_	2010-08-27 11:13:47 -07:00
bounce.c	bounce: call flush_dcache_page() after bounce_copy_vec()	2010-09-09 18:57:25 -07:00
compaction.c	mm: compaction: prevent division-by-zero during user-requested compaction	2011-01-20 17:02:05 -08:00
debug-pagealloc.c
dmapool.c	mm/dmapool.c: use TASK_UNINTERRUPTIBLE in dma_pool_alloc()	2011-01-13 17:32:48 -08:00
fadvise.c
failslab.c
filemap.c	mm: remove likely() from grab_cache_page_write_begin()	2011-01-13 17:32:36 -08:00
filemap_xip.c
fremap.c	Avoid pgoff overflow in remap_file_pages	2010-09-25 09:34:58 -07:00
highmem.c	mm,x86: fix kmap_atomic_push vs ioremap_32.c	2010-10-27 18:03:05 -07:00
huge_memory.c	memcg: fix USED bit handling at uncharge in THP	2011-01-20 17:02:06 -08:00
hugetlb.c	hugetlb: fix handling of parse errors in sysfs	2011-01-13 17:32:49 -08:00
hwpoison-inject.c
init-mm.c
internal.h	Revert "mm: batch activate_page() to reduce lock contention"	2011-01-17 14:42:19 -08:00
Kconfig	mm: compaction: don't depend on HUGETLB_PAGE	2011-01-26 10:50:02 +10:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c	ksm: drain pagevecs to lru	2011-01-13 17:32:49 -08:00
maccess.c	MN10300: Save frame pointer in thread_info struct rather than global var	2010-10-27 17:29:01 +01:00
madvise.c	thp: khugepaged: make khugepaged aware about madvise	2011-01-13 17:32:47 -08:00
Makefile	thp: transparent hugepage core	2011-01-13 17:32:42 -08:00
memblock.c	memblock: fix memblock_is_region_memory()	2011-01-20 17:02:05 -08:00
memcontrol.c	mm/memcontrol.c: fix uninitialized variable use in mem_cgroup_move_parent()	2011-01-26 10:50:01 +10:00
memory-failure.c	thp: compound_trans_order	2011-01-13 17:32:47 -08:00
memory.c	thp: add debug checks for mapcount related invariants	2011-01-13 17:32:47 -08:00
memory_hotplug.c	Merge branch 'slub/hotplug' into slab/urgent	2011-01-15 13:28:17 +02:00
mempolicy.c	thp: add numa awareness to hugepage allocations	2011-01-13 17:32:45 -08:00
mempool.c
migrate.c	memcg: fix memory migration of shmem swapcache	2011-01-13 17:32:51 -08:00
mincore.c	thp: mincore transparent hugepage support	2011-01-13 17:32:44 -08:00
mlock.c	mlock: do not hold mmap_sem for extended periods of time	2011-01-13 17:32:36 -08:00
mm_init.c
mmap.c	brk: fix min_brk lower bound computation for COMPAT_BRK	2011-01-13 17:32:48 -08:00
mmu_context.c
mmu_notifier.c	thp: mmu_notifier_test_young	2011-01-13 17:32:46 -08:00
mmzone.c	mm: page allocator: adjust the per-cpu counter threshold when memory is low	2011-01-13 17:32:31 -08:00
mprotect.c	thp: mprotect: transparent huge page support	2011-01-13 17:32:44 -08:00
mremap.c	thp: split_huge_page_mm/vma	2011-01-13 17:32:41 -08:00
msync.c
nommu.c	mlock: do not hold mmap_sem for extended periods of time	2011-01-13 17:32:36 -08:00
oom_kill.c	oom: kill all threads sharing oom killed task's mm	2010-10-26 16:52:05 -07:00
page-writeback.c	writeback: avoid unnecessary determine_dirtyable_memory call	2011-01-13 17:32:38 -08:00
page_alloc.c	mm: clear pages_scanned only if draining a pcp adds pages to the buddy allocator	2011-01-26 10:50:01 +10:00
page_cgroup.c
page_io.c
page_isolation.c	mm: page_isolation: codeclean fix comment and rm unneeded val init	2010-10-26 16:52:11 -07:00
pagewalk.c	thp: split_huge_page_mm/vma	2011-01-13 17:32:41 -08:00
percpu-km.c	percpu: clear memory allocated with the km allocator	2010-10-02 10:28:42 +03:00
percpu-vm.c	mm: remove gfp mask from pcpu_get_vm_areas	2011-01-13 17:32:34 -08:00
percpu.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-01-13 10:05:56 -08:00
pgtable-generic.c	mm/pgtable-generic.c: fix CONFIG_SWAP=n build	2011-01-26 10:49:58 +10:00
prio_tree.c
quicklist.c
readahead.c
rmap.c	memcg: create extensible page stat update routines	2011-01-13 17:32:50 -08:00
shmem.c	fs: icache RCU free inodes	2011-01-07 17:50:26 +11:00
slab.c	mm/slab.c: make local symbols static	2011-01-15 13:28:36 +02:00
slob.c	kernel: kmem_ptr_validate considered harmful	2011-01-07 17:50:16 +11:00
slub.c	Merge branch 'slub/hotplug' into slab/urgent	2011-01-15 13:28:17 +02:00
sparse-vmemmap.c	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
sparse.c	thp: remove PG_buddy	2011-01-13 17:32:43 -08:00
swap.c	Revert "mm: simplify code of swap.c"	2011-01-17 14:42:34 -08:00
swap_state.c	thp: split_huge_page paging	2011-01-13 17:32:41 -08:00
swapfile.c	thp: split_huge_page paging	2011-01-13 17:32:41 -08:00
thrash.c
truncate.c	mm: fix truncate_setsize() comment	2011-01-20 17:02:06 -08:00
util.c	kernel: kmem_ptr_validate considered harmful	2011-01-07 17:50:16 +11:00
vmalloc.c	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2011-01-13 20:15:35 -08:00
vmscan.c	mm: fix deferred congestion timeout if preferred zone is not allowed	2011-01-26 10:50:00 +10:00
vmstat.c	thp: transparent hugepage vmstat	2011-01-13 17:32:43 -08:00