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Paul Gortmaker 3e89e1c5ea hugetlb: make mm and fs code explicitly non-modular 
The Kconfig currently controlling compilation of this code is:

config HUGETLBFS
        bool "HugeTLB file system support"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that when
reading the driver there is no doubt it is builtin-only.

Since module_init translates to device_initcall in the non-modular case,
the init ordering gets moved to earlier levels when we use the more
appropriate initcalls here.

Originally I had the fs part and the mm part as separate commits, just
by happenstance of the nature of how I detected these non-modular use
cases.  But that can possibly introduce regressions if the patch merge
ordering puts the fs part 1st -- as the 0-day testing reported a splat
at mount time.

Investigating with "initcall_debug" showed that the delta was
init_hugetlbfs_fs being called _before_ hugetlb_init instead of after.  So
both the fs change and the mm change are here together.

In addition, it worked before due to luck of link order, since they were
both in the same initcall category.  So we now have the fs part using
fs_initcall, and the mm part using subsys_initcall, which puts it one
bucket earlier.  It now passes the basic sanity test that failed in
earlier 0-day testing.

We delete the MODULE_LICENSE tag and capture that information at the top
of the file alongside author comments, etc.

We don't replace module.h with init.h since the file already has that.
Also note that MODULE_ALIAS is a no-op for non-modular code.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Reported-by: kernel test robot <ying.huang@linux.intel.com>
Cc: Nadia Yvette Chambers <nyc@holomorphy.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2016-01-14 16:00:49 -08:00
..
kasan kasan: fix kmemleak false-positive in kasan_module_alloc() 2015-11-20 16:17:32 -08:00
Kconfig mm: make compound_head() robust 2015-11-06 17:50:42 -08:00
Kconfig.debug mm/debug_pagealloc: remove obsolete Kconfig options 2015-01-08 15:10:52 -08:00
Makefile media updates for v4.3-rc1 2015-09-11 16:42:39 -07:00
backing-dev.c mm: memcontrol: export root_mem_cgroup 2016-01-14 16:00:49 -08:00
balloon_compaction.c mm: page migration trylock newpage at same level as oldpage 2015-11-05 19:34:48 -08:00
bootmem.c x86/mm: Introduce max_possible_pfn 2015-12-06 12:46:31 +01:00
cleancache.c cleancache: remove limit on the number of cleancache enabled filesystems 2015-04-14 16:49:03 -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
cma_debug.c mm/cma_debug: correct size input to bitmap function 2015-07-17 16:39:54 -07:00
compaction.c mm/compaction.c: __compact_pgdat() code cleanuup 2016-01-14 16:00:49 -08:00
debug-pagealloc.c mm/debug-pagealloc: make debug-pagealloc boottime configurable 2014-12-13 12:42:48 -08:00
debug.c mm: make compound_head() robust 2015-11-06 17:50:42 -08:00
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, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
filemap.c mm: allow GFP_{FS,IO} for page_cache_read page cache allocation 2016-01-14 16:00:49 -08:00
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: introduce VM_LOCKONFAULT 2015-11-05 19:34:48 -08:00
highmem.c mm/highmem: make kmap cache coloring aware 2014-08-06 18:01:22 -07:00
huge_memory.c mm: loosen MADV_NOHUGEPAGE to enable Qemu postcopy on s390 2015-11-20 16:17:32 -08:00
hugetlb.c hugetlb: make mm and fs code explicitly non-modular 2016-01-14 16:00:49 -08:00
hugetlb_cgroup.c mm: make compound_head() robust 2015-11-06 17:50:42 -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/readahead.c, mm/vmscan.c: use lru_to_page instead of list_to_page 2016-01-14 16:00:49 -08:00
interval_tree.c mm: replace vma->sharead.linear with vma->shared 2015-02-10 14:30:31 -08:00
kmemcheck.c mm/slab_common: move kmem_cache definition to internal header 2014-10-09 22:25:50 -04:00
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: use list_for_each_entry_safe 2016-01-14 16:00:49 -08:00
list_lru.c memcg: simplify and inline __mem_cgroup_from_kmem 2015-11-05 19:34:48 -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 allow remove operation for hugetlbfs 2015-09-08 15:35:28 -07:00
memblock.c mm/memblock: introduce for_each_memblock_type() 2016-01-14 16:00:49 -08:00
memcontrol.c mm: memcontrol: switch to the updated jump-label API 2016-01-14 16:00:49 -08:00
memory-failure.c mm: make compound_head() robust 2015-11-06 17:50:42 -08:00
memory.c mm: allow GFP_{FS,IO} for page_cache_read page cache allocation 2016-01-14 16:00:49 -08:00
memory_hotplug.c mm/memory_hotplug.c: check for missing sections in test_pages_in_a_zone() 2015-12-29 17:45:49 -08:00
mempolicy.c mm/mempolicy.c: convert the shared_policy lock to a rwlock 2016-01-14 16:00:49 -08:00
mempool.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
memtest.c memtest: remove unused header files 2015-09-08 15:35:28 -07:00
migrate.c mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
mincore.c mm/mincore: use offset_in_page macro 2015-11-05 19:34:48 -08:00
mlock.c mm/mlock.c: drop unneeded initialization in munlock_vma_pages_range() 2016-01-14 16:00:49 -08:00
mm_init.c mm: meminit: remove mminit_verify_page_links 2015-06-30 19:44:56 -07:00
mmap.c mm: mmap: add new /proc tunable for mmap_base ASLR 2016-01-14 16:00:49 -08:00
mmu_context.c sched/mm: call finish_arch_post_lock_switch in idle_task_exit and use_mm 2014-02-21 08:50:17 +01:00
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 userfaultfd: teach vma_merge to merge across vma->vm_userfaultfd_ctx 2015-09-04 16:54:41 -07:00
mremap.c x86/mm/pat: Add untrack_pfn_moved for mremap 2016-01-05 11:10:05 +01:00
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 kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
oom_kill.c mm, shmem: add internal shmem resident memory accounting 2016-01-14 16:00:49 -08:00
page-writeback.c mm: page_alloc: generalize the dirty balance reserve 2016-01-14 16:00:49 -08:00
page_alloc.c mm, oom: give __GFP_NOFAIL allocations access to memory reserves 2016-01-14 16:00:49 -08:00
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: introduce idle page tracking 2015-09-10 13:29:01 -07:00
page_idle.c mm: introduce idle page tracking 2015-09-10 13:29:01 -07:00
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.c: add new tracepoint, test_pages_isolated 2016-01-14 16:00:49 -08:00
page_owner.c mm/page_owner: set correct gfp_mask on page_owner 2015-07-17 16:39:54 -07:00
pagewalk.c mm/pagewalk.c: prevent positive return value of walk_page_test() from being passed to callers 2015-03-25 16:20:30 -07:00
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 mm/percpu: use offset_in_page macro 2015-11-05 19:34:48 -08:00
pgtable-generic.c mm, thp: use list_first_entry_or_null() 2016-01-14 16:00:49 -08:00
process_vm_access.c process_vm_access: switch to {compat_,}import_iovec() 2015-04-11 22:27:12 -04:00
quicklist.c
…
readahead.c mm/readahead.c, mm/vmscan.c: use lru_to_page instead of list_to_page 2016-01-14 16:00:49 -08:00
rmap.c mm, shmem: add internal shmem resident memory accounting 2016-01-14 16:00:49 -08:00
shmem.c mm, proc: reduce cost of /proc/pid/smaps for unpopulated shmem mappings 2016-01-14 16:00:49 -08:00
slab.c mm/slab.c: add a helper function get_first_slab 2016-01-14 16:00:49 -08:00
slab.h slab: add SLAB_ACCOUNT flag 2016-01-14 16:00:49 -08:00
slab_common.c slab: add SLAB_ACCOUNT flag 2016-01-14 16:00:49 -08:00
slob.c slab/slub: adjust kmem_cache_alloc_bulk API 2015-11-22 11:58:44 -08:00
slub.c slab: add SLAB_ACCOUNT flag 2016-01-14 16:00:49 -08:00
sparse-vmemmap.c mm/sparse: use memblock apis for early memory allocations 2014-01-21 16:19:47 -08:00
sparse.c mm: use macros from compiler.h instead of __attribute__((...)) 2014-04-07 16:35:54 -07:00
swap.c mm: make compound_head() robust 2015-11-06 17:50:42 -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: swap: zswap: maybe_preload & refactoring 2015-09-08 15:35:28 -07:00
swapfile.c mm/swapfile.c: use list_for_each_entry_safe in free_swap_count_continuations 2016-01-14 16:00:49 -08:00
truncate.c memcg: add per cgroup dirty page accounting 2015-06-02 08:33:33 -06:00
userfaultfd.c userfaultfd: avoid mmap_sem read recursion in mcopy_atomic 2015-09-04 16:54:41 -07:00
util.c new helper: memdup_user_nul() 2016-01-04 10:20:19 -05:00
vmacache.c mm/vmacache: inline vmacache_valid_mm() 2015-11-05 19:34:48 -08:00
vmalloc.c mm, vmalloc: remove VM_VPAGES 2016-01-14 16:00:49 -08:00
vmpressure.c memcg: avoid vmpressure oops when memcg disabled 2016-01-14 16:00:49 -08:00
vmscan.c mm: make sure isolate_lru_page() is never called for tail page 2016-01-14 16:00:49 -08:00
vmstat.c vmstat: make vmstat_updater deferrable again and shut down on idle 2016-01-14 16:00:49 -08:00
workingset.c list_lru: add helpers to isolate items 2015-02-12 18:54:10 -08:00
zbud.c mm: zsmalloc: constify struct zs_pool name 2015-11-06 17:50:42 -08:00
zpool.c mm: zsmalloc: constify struct zs_pool name 2015-11-06 17:50:42 -08:00
zsmalloc.c zsmalloc: use page->private instead of page->first_page 2015-11-06 17:50:42 -08:00
zswap.c mm/zswap: change incorrect strncmp use to strcmp 2015-12-18 14:25:40 -08:00