Joonsoo Kim f48d97f340 mm/vmalloc: query dynamic DEBUG_PAGEALLOC setting ... As CONFIG_DEBUG_PAGEALLOC can be enabled/disabled via kernel parameters we can optimize some cases by checking the enablement state. This is follow-up work for Christian's Optimize CONFIG_DEBUG_PAGEALLOC: https://lkml.org/lkml/2016/1/27/194 Remaining work is to make sparc to be aware of this but it looks not easy for me so I skip that in this series. This patch (of 5): We can disable debug_pagealloc processing even if the code is complied with CONFIG_DEBUG_PAGEALLOC. This patch changes the code to query whether it is enabled or not in runtime. [akpm@linux-foundation.org: update comment, per David. Adjust comment to use 80 cols] Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Takashi Iwai <tiwai@suse.com> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-03-17 15:09:34 -07:00
..
kasan	kasan: add functions to clear stack poison	2016-03-09 15:43:42 -08:00
backing-dev.c	mm/backing-dev.c: fix error path in wb_init()	2016-02-11 18:35:48 -08:00
balloon_compaction.c	virtio_balloon: fix race between migration and ballooning	2016-01-12 20:47:06 +02:00
bootmem.c	x86/mm: Introduce max_possible_pfn	2015-12-06 12:46:31 +01:00
cleancache.c	cleancache: constify cleancache_ops structure	2016-01-27 09:09:57 -05:00
cma_debug.c
cma.c
cma.h
compaction.c	mm/compaction: speed up pageblock_pfn_to_page() when zone is contiguous	2016-03-15 16:55:16 -07:00
debug.c	mm, debug: move bad flags printing to bad_page()	2016-03-15 16:55:16 -07:00
dmapool.c
early_ioremap.c
fadvise.c
failslab.c	mm: fault-inject take over bootstrap kmem_cache check	2016-03-15 16:55:16 -07:00
filemap.c	mm: remove unnecessary uses of lock_page_memcg()	2016-03-15 16:55:16 -07:00
frame_vector.c
frontswap.c
gup.c	mm: retire GUP WARN_ON_ONCE that outlived its usefulness	2016-02-03 08:57:14 -08:00
highmem.c
huge_memory.c	thp: cleanup split_huge_page()	2016-03-15 16:55:16 -07:00
hugetlb_cgroup.c	mm: make compound_head() robust	2015-11-06 17:50:42 -08:00
hugetlb.c	mm/hugetlb: use EOPNOTSUPP in hugetlb sysctl handlers	2016-03-09 15:43:42 -08:00
hwpoison-inject.c
init-mm.c
internal.h	/proc/kpageflags: return KPF_BUDDY for "tail" buddy pages	2016-03-17 15:09:34 -07:00
interval_tree.c
Kconfig	mm/Kconfig: correct description of DEFERRED_STRUCT_PAGE_INIT	2016-02-05 18:10:40 -08:00
Kconfig.debug	mm/page_poisoning.c: allow for zero poisoning	2016-03-15 16:55:16 -07:00
kmemcheck.c	mm: kmemcheck skip object if slab allocation failed	2016-03-15 16:55:16 -07:00
kmemleak-test.c
kmemleak.c	Revert "gfp: add __GFP_NOACCOUNT"	2016-01-14 16:00:49 -08:00
ksm.c	mm/ksm.c: mark stable page dirty	2016-01-15 17:56:32 -08:00
list_lru.c	mm: memcontrol: move kmem accounting code to CONFIG_MEMCG	2016-01-20 17:09:18 -08:00
maccess.c
madvise.c	mm/madvise: update comment on sys_madvise()	2016-03-15 16:55:16 -07:00
Makefile	mm/page_poison.c: enable PAGE_POISONING as a separate option	2016-03-15 16:55:16 -07:00
memblock.c	mm/memblock.c: remove unnecessary memblock_type variable	2016-03-15 16:55:16 -07:00
memcontrol.c	mm: memcontrol: report kernel stack usage in cgroup2 memory.stat	2016-03-17 15:09:34 -07:00
memory_hotplug.c	mm/compaction: speed up pageblock_pfn_to_page() when zone is contiguous	2016-03-15 16:55:16 -07:00
memory-failure.c	mm/memory-failure.c: remove useless "undef"s	2016-03-15 16:55:16 -07:00
memory.c	Merge branch 'akpm' (patches from Andrew)	2016-03-16 11:51:08 -07:00
mempolicy.c	mm/mempolicy.c: skip VM_HUGETLB and VM_MIXEDMAP VMA for lazy mbind	2016-03-15 16:55:16 -07:00
mempool.c	mm/mempool: avoid KASAN marking mempool poison checks as use-after-free	2016-03-11 16:17:47 -08:00
memtest.c
migrate.c	mm: migrate: consolidate mem_cgroup_migrate() calls	2016-03-15 16:55:16 -07:00
mincore.c	thp: change pmd_trans_huge_lock() interface to return ptl	2016-01-21 17:20:51 -08:00
mlock.c	mm: fix mlock accouting	2016-01-21 17:20:51 -08:00
mm_init.c
mmap.c	Linux 4.5-rc7	2016-03-07 09:27:30 +01:00
mmu_context.c
mmu_notifier.c
mmzone.c	mm/mmzone.c: memmap_valid_within() can be boolean	2016-01-14 16:00:49 -08:00
mprotect.c	mm, dax: check for pmd_none() after split_huge_pmd()	2016-02-11 18:35:48 -08:00
mremap.c	mm, dax: check for pmd_none() after split_huge_pmd()	2016-02-11 18:35:48 -08:00
msync.c
nobootmem.c	x86/mm: Introduce max_possible_pfn	2015-12-06 12:46:31 +01:00
nommu.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
oom_kill.c	mm: oom_kill: don't ignore oom score on exiting tasks	2016-03-17 15:09:34 -07:00
page_alloc.c	/proc/kpageflags: return KPF_BUDDY for "tail" buddy pages	2016-03-17 15:09:34 -07:00
page_counter.c
page_ext.c	mm/page_poisoning.c: allow for zero poisoning	2016-03-15 16:55:16 -07:00
page_idle.c	mm: add page_check_address_transhuge() helper	2016-01-15 17:56:32 -08:00
page_io.c
page_isolation.c	mm/page_isolation: do some cleanup in "undo_isolate_page_range"	2016-01-15 17:56:32 -08:00
page_owner.c	mm, page_owner: dump page owner info from dump_page()	2016-03-15 16:55:16 -07:00
page_poison.c	mm/page_poisoning.c: allow for zero poisoning	2016-03-15 16:55:16 -07:00
page-writeback.c	mm: remove unnecessary uses of lock_page_memcg()	2016-03-15 16:55:16 -07:00
pagewalk.c	thp: rename split_huge_page_pmd() to split_huge_pmd()	2016-01-15 17:56:32 -08:00
percpu-km.c
percpu-vm.c
percpu.c	tree wide: use kvfree() than conditional kfree()/vfree()	2016-01-22 17:02:18 -08:00
pgtable-generic.c	mm,thp: fix spellos in describing __HAVE_ARCH_FLUSH_PMD_TLB_RANGE	2016-02-11 18:35:48 -08:00
process_vm_access.c	ptrace: use fsuid, fsgid, effective creds for fs access checks	2016-01-20 17:09:18 -08:00
quicklist.c
readahead.c	mm: move lru_to_page to mm_inline.h	2016-01-14 16:00:49 -08:00
rmap.c	mm: simplify lock_page_memcg()	2016-03-15 16:55:16 -07:00
shmem.c	mm: migrate: do not touch page->mem_cgroup of live pages	2016-03-15 16:55:16 -07:00
slab_common.c	mm: new API kfree_bulk() for SLAB+SLUB allocators	2016-03-15 16:55:16 -07:00
slab.c	mm: memcontrol: report slab usage in cgroup2 memory.stat	2016-03-17 15:09:34 -07:00
slab.h	mm: memcontrol: report slab usage in cgroup2 memory.stat	2016-03-17 15:09:34 -07:00
slob.c	mm: slab: free kmem_cache_node after destroy sysfs file	2016-02-18 16:23:24 -08:00
slub.c	mm: memcontrol: report slab usage in cgroup2 memory.stat	2016-03-17 15:09:34 -07:00
sparse-vmemmap.c	x86, mm: introduce vmem_altmap to augment vmemmap_populate()	2016-01-15 17:56:32 -08:00
sparse.c	x86, mm: introduce vmem_altmap to augment vmemmap_populate()	2016-01-15 17:56:32 -08:00
swap_cgroup.c
swap_state.c	mm: memcontrol: charge swap to cgroup2	2016-01-20 17:09:18 -08:00
swap.c	mm, x86: get_user_pages() for dax mappings	2016-01-15 17:56:32 -08:00
swapfile.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
truncate.c	mm: remove unnecessary uses of lock_page_memcg()	2016-03-15 16:55:16 -07:00
userfaultfd.c	memcg: adjust to support new THP refcounting	2016-01-15 17:56:32 -08:00
util.c	proc: revert /proc/<pid>/maps [stack:TID] annotation	2016-02-03 08:28:43 -08:00
vmacache.c
vmalloc.c	mm/vmalloc: query dynamic DEBUG_PAGEALLOC setting	2016-03-17 15:09:34 -07:00
vmpressure.c	mm/vmpressure.c: fix subtree pressure detection	2016-02-03 08:28:43 -08:00
vmscan.c	mm: remove unnecessary uses of lock_page_memcg()	2016-03-15 16:55:16 -07:00
vmstat.c	mm, page_owner: convert page_owner_inited to static key	2016-03-15 16:55:16 -07:00
workingset.c	mm: simplify lock_page_memcg()	2016-03-15 16:55:16 -07:00
zbud.c	mm/zbud.c: use list_last_entry() instead of list_tail_entry()	2016-01-15 11:40:52 -08:00
zpool.c
zsmalloc.c	zsmalloc: fix migrate_zspage-zs_free race condition	2016-01-20 17:09:18 -08:00
zswap.c	mm/zswap: change incorrect strncmp use to strcmp	2015-12-18 14:25:40 -08:00