renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-22 20:23:57 +08:00
Code
b11a7b9410
linux-next/mm
History
Dan Williams b11a7b9410 mm: exclude ZONE_DEVICE from GFP_ZONE_TABLE 
ZONE_DEVICE (merged in 4.3) and ZONE_CMA (proposed) are examples of new
mm zones that are bumping up against the current maximum limit of 4
zones, i.e.  2 bits in page->flags for the GFP_ZONE_TABLE.

The GFP_ZONE_TABLE poses an interesting constraint since
include/linux/gfp.h gets included by the 32-bit portion of a 64-bit
build.  We need to be careful to only build the table for zones that
have a corresponding gfp_t flag.  GFP_ZONES_SHIFT is introduced for this
purpose.  This patch does not attempt to solve the problem of adding a
new zone that also has a corresponding GFP_ flag.

Vlastimil points out that ZONE_DEVICE, by depending on x86_64 and
SPARSEMEM_VMEMMAP implies that SECTIONS_WIDTH is zero.  In other words
even though ZONE_DEVICE does not fit in GFP_ZONE_TABLE it is free to
consume another bit in page->flags (expand ZONES_WIDTH) with room to
spare.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=110931
Fixes: 033fbae988 ("mm: ZONE_DEVICE for "device memory"")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Mark <markk@clara.co.uk>
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
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 mm/cma_debug: correct size input to bitmap function 2015-07-17 16:39:54 -07:00
cma.c mm/cma.c: suppress warning 2015-11-05 19:34:48 -08:00
cma.h mm: cma: mark cma_bitmap_maxno() inline in header 2015-08-14 15:56:32 -07:00
compaction.c mm, kswapd: replace kswapd compaction with waking up kcompactd 2016-03-17 15:09:34 -07:00
debug_page_ref.c mm/page_ref: add tracepoint to track down page reference manipulation 2016-03-17 15:09:34 -07:00
debug.c mm: introduce page reference manipulation functions 2016-03-17 15:09:34 -07:00
dmapool.c mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
early_ioremap.c mm/early_ioremap: use offset_in_page macro 2015-11-05 19:34:48 -08:00
fadvise.c writeback: implement and use inode_congested() 2015-06-02 08:33:35 -06:00
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 mm: fix docbook comment for get_vaddr_frames() 2015-11-05 19:34:48 -08:00
frontswap.c frontswap: allow multiple backends 2015-06-24 17:49:45 -07:00
gup.c mm: retire GUP WARN_ON_ONCE that outlived its usefulness 2016-02-03 08:57:14 -08:00
highmem.c mm/highmem: make kmap cache coloring aware 2014-08-06 18:01:22 -07:00
huge_memory.c mm: introduce page reference manipulation functions 2016-03-17 15:09:34 -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 hwpoison: use page_cgroup_ino for filtering by memcg 2015-09-10 13:29:01 -07:00
init-mm.c
internal.h mm: introduce page reference manipulation functions 2016-03-17 15:09:34 -07:00
interval_tree.c mm: replace vma->sharead.linear with vma->shared 2015-02-10 14:30:31 -08:00
Kconfig mm: exclude ZONE_DEVICE from GFP_ZONE_TABLE 2016-03-17 15:09:34 -07:00
Kconfig.debug mm/page_ref: add tracepoint to track down page reference manipulation 2016-03-17 15:09:34 -07:00
kmemcheck.c mm: kmemcheck skip object if slab allocation failed 2016-03-15 16:55:16 -07:00
kmemleak-test.c mm/kmemleak-test.c: use pr_fmt for logging 2014-06-06 16:08:18 -07:00
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 mm/maccess.c: actually return -EFAULT from strncpy_from_unsafe 2015-11-05 19:34:48 -08:00
madvise.c mm/madvise: update comment on sys_madvise() 2016-03-15 16:55:16 -07:00
Makefile mm/page_ref: add tracepoint to track down page reference manipulation 2016-03-17 15:09:34 -07:00
memblock.c mm/memblock.c: remove unnecessary memblock_type variable 2016-03-15 16:55:16 -07:00
memcontrol.c mm: memcontrol: cleanup css_reset callback 2016-03-17 15:09:34 -07:00
memory_hotplug.c mm, memory hotplug: print debug message in the proper way for online_pages 2016-03-17 15:09:34 -07:00
memory-failure.c mm/memory-failure.c: remove useless "undef"s 2016-03-15 16:55:16 -07:00
memory.c mm: cleanup *pte_alloc* interfaces 2016-03-17 15:09:34 -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: only set __GFP_NOMEMALLOC if there are free elements 2016-03-17 15:09:34 -07:00
memtest.c memtest: remove unused header files 2015-09-08 15:35:28 -07:00
migrate.c mm: introduce page reference manipulation functions 2016-03-17 15:09:34 -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 mm: meminit: remove mminit_verify_page_links 2015-06-30 19:44:56 -07:00
mmap.c mm: deduplicate memory overcommitment code 2016-03-17 15:09:34 -07:00
mmu_context.c
mmu_notifier.c mmu-notifier: add clear_young callback 2015-09-10 13:29:01 -07:00
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: cleanup *pte_alloc* interfaces 2016-03-17 15:09:34 -07:00
msync.c mm/msync: use offset_in_page macro 2015-11-05 19:34:48 -08:00
nobootmem.c x86/mm: Introduce max_possible_pfn 2015-12-06 12:46:31 +01:00
nommu.c mm: deduplicate memory overcommitment code 2016-03-17 15:09:34 -07:00
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 mm: remove __GFP_NOFAIL is deprecated comment 2016-03-17 15:09:34 -07:00
page_counter.c mm: page_counter: let page_counter_try_charge() return bool 2015-11-05 19:34:48 -08:00
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 fs: use helper bio_add_page() instead of open coding on bi_io_vec 2015-08-13 12:32:00 -06:00
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: implmeent pcpu_nr_empty_pop_pages and chunk->nr_populated 2014-09-02 14:46:05 -04:00
percpu-vm.c percpu: move region iterations out of pcpu_[de]populate_chunk() 2014-09-02 14:46:02 -04:00
percpu.c tree wide: use kvfree() than conditional kfree()/vfree() 2016-01-22 17:02:18 -08:00
pgtable-generic.c mm/thp/migration: switch from flush_tlb_range to flush_pmd_tlb_range 2016-03-17 15:09:34 -07:00
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: memcontrol: zap memcg_kmem_online helper 2016-03-17 15:09:34 -07:00
slab.c mm: thp: set THP defrag by default to madvise and add a stall-free defrag option 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: thp: set THP defrag by default to madvise and add a stall-free defrag option 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 mm: page_cgroup: rename file to mm/swap_cgroup.c 2014-12-10 17:41:09 -08:00
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 mm: cleanup *pte_alloc* interfaces 2016-03-17 15:09:34 -07:00
util.c mm: deduplicate memory overcommitment code 2016-03-17 15:09:34 -07:00
vmacache.c mm/vmacache: inline vmacache_valid_mm() 2015-11-05 19:34:48 -08:00
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: introduce page reference manipulation functions 2016-03-17 15:09:34 -07:00
vmstat.c thp, vmstats: count deferred split events 2016-03-17 15:09:34 -07:00
workingset.c mm: workingset: make shadow node shrinker memcg aware 2016-03-17 15:09:34 -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 mm: zsmalloc: constify struct zs_pool name 2015-11-06 17:50:42 -08:00
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