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3e89e1c5ea
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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
..
9p kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
adfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
affs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
afs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
autofs4 switch ->get_link() to delayed_call, kill ->put_link() 2015-12-30 13:01:03 -05:00
befs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
bfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
btrfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
cachefiles convert a bunch of open-coded instances of memdup_user_nul() 2016-01-04 10:26:58 -05:00
ceph kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
cifs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
coda kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
configfs Configfs changes for the 4.5 merge window: 2016-01-12 18:15:34 -08:00
cramfs don't put symlink bodies in pagecache into highmem 2015-12-08 22:41:36 -05:00
debugfs debugfs: fix refcount imbalance in start_creating 2015-11-11 02:04:44 -05:00
devpts
dlm convert a bunch of open-coded instances of memdup_user_nul() 2016-01-04 10:26:58 -05:00
ecryptfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
efivarfs
efs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
exofs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
exportfs
ext2 kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
ext4 kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
f2fs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
fat kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
freevxfs don't put symlink bodies in pagecache into highmem 2015-12-08 22:41:36 -05:00
fscache FS-Cache: Handle a write to the page immediately beyond the EOF marker 2015-11-11 02:11:02 -05:00
fuse kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
gfs2 kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
hfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
hfsplus kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
hostfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
hpfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
hugetlbfs hugetlb: make mm and fs code explicitly non-modular 2016-01-14 16:00:49 -08:00
isofs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
jbd2 fs: use block_device name vsprintf helper 2016-01-06 13:03:18 -05:00
jffs2 kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
jfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
kernfs Revert "kernfs: do not account ino_ida allocations to memcg" 2016-01-14 16:00:49 -08:00
lockd Mainly smaller bugfixes and cleanup. We're still finding some bugs from 2015-11-11 20:11:28 -08:00
logfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
minix kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
ncpfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
nfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
nfs_common
nfsd Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-12 17:11:47 -08:00
nilfs2 kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
nls
notify fsnotify: destroy marks with call_srcu instead of dedicated thread 2016-01-14 16:00:49 -08:00
ntfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
ocfs2 kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
omfs
openpromfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
overlayfs switch ->get_link() to delayed_call, kill ->put_link() 2015-12-30 13:01:03 -05:00
proc mm: /proc/pid/clear_refs: no need to clear VM_SOFTDIRTY in clear_soft_dirty_pmd() 2016-01-14 16:00:49 -08:00
pstore pstore: fix code comment to match code 2015-11-02 13:41:52 -08:00
qnx4 kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
qnx6 kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
quota Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-09-05 20:34:28 -07:00
ramfs don't put symlink bodies in pagecache into highmem 2015-12-08 22:41:36 -05:00
reiserfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
romfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
squashfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
sysfs platform/chrome: Branch for v4.4 2015-11-13 21:53:18 -08:00
sysv kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
tracefs tracefs: Fix refcount imbalance in start_creating() 2015-11-04 22:13:45 -05:00
ubifs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
udf kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
ufs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
xfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
aio.c mm: move ->mremap() from file_operations to vm_operations_struct 2015-09-04 16:54:41 -07:00
anon_inodes.c
attr.c
bad_inode.c fs/bad_inode.c: is_bad_inode can be boolean 2015-12-06 21:17:14 -05:00
binfmt_aout.c
binfmt_elf_fdpic.c libnvdimm for 4.4: 2015-11-10 12:07:22 -08:00
binfmt_elf.c Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-11-11 09:45:24 -08:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c fs/block_dev.c:bdev_write_page(): use blk_queue_enter(..., GFP_NOIO) 2016-01-14 16:00:49 -08:00
buffer.c fs: use block_device name vsprintf helper 2016-01-06 13:03:18 -05:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-12 17:11:47 -08:00
compat.c saner calling conventions for copy_mount_options() 2016-01-04 10:28:32 -05:00
coredump.c coredump: Use 64bit time for unix time of coredump 2015-12-06 21:17:17 -05:00
dax.c dax: disable pmd mappings 2015-11-16 23:54:45 -08:00
dcache.c kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
dcookies.c
direct-io.c fix the regression from "direct-io: Fix negative return from dio read beyond eof" 2015-12-08 15:02:42 -05:00
drop_caches.c
eventfd.c
eventpoll.c
exec.c don't carry MAY_OPEN in op->acc_mode 2016-01-04 10:28:40 -05:00
fcntl.c fcntl: allow to set O_DIRECT flag on pipe 2016-01-09 02:55:37 -05:00
fhandle.c
file_table.c
file.c kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
filesystems.c
fs_pin.c
fs_struct.c
fs-writeback.c fs: fix writeback.c kernel-doc warnings 2015-11-11 02:18:27 -05:00
inode.c kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
internal.h Merge branch 'for-linus' into work.misc 2016-01-08 21:20:11 -05:00
ioctl.c Merge branch 'work.copy_file_range' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-12 16:30:34 -08:00
Kconfig File locking related changes for v4.5 (pile #1) 2016-01-12 15:46:17 -08:00
Kconfig.binfmt
libfs.c switch ->get_link() to delayed_call, kill ->put_link() 2015-12-30 13:01:03 -05:00
locks.c Merge branch 'work.copy_file_range' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-12 16:30:34 -08:00
Makefile ext4: promote ext4 over ext2 in the default probe order 2015-10-15 10:33:21 -04:00
mbcache.c
mount.h
mpage.c mm, fs: introduce mapping_gfp_constraint() 2015-11-06 17:50:42 -08:00
namei.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-12 17:11:47 -08:00
namespace.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-12 17:11:47 -08:00
no-block.c
nsfs.c fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void 2015-09-11 15:21:34 -07:00
open.c don't carry MAY_OPEN in op->acc_mode 2016-01-04 10:28:40 -05:00
pipe.c fs/pipe.c: return error code rather than 0 in pipe_write() 2015-11-11 02:18:26 -05:00
pnode.c
pnode.h
posix_acl.c xattr handlers: Simplify list operation 2015-12-13 19:46:12 -05:00
proc_namespace.c vfs: show_vfsstat: remove redundant initialization and check of error code 2015-12-06 21:17:16 -05:00
read_write.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-12 17:11:47 -08:00
readdir.c
select.c poll: plug an unused argument to do_poll 2016-01-06 08:26:52 -05:00
seq_file.c fs, seqfile: always allow oom killer 2015-11-06 17:50:42 -08:00
signalfd.c
splice.c fs: __generic_file_splice_read retry lookup on AOP_TRUNCATED_PAGE 2016-01-09 02:55:35 -05:00
stack.c
stat.c fs/stat.c: remove unnecessary new_valid_dev() check 2015-11-09 15:11:24 -08:00
statfs.c
super.c fs: use block_device name vsprintf helper 2016-01-06 13:03:18 -05:00
sync.c fs/sync.c: make sync_file_range(2) use WB_SYNC_NONE writeback 2015-11-06 17:50:42 -08:00
timerfd.c
userfaultfd.c userfaultfd: revert "userfaultfd: waitqueue: add nr wake parameter to __wake_up_locked_key" 2015-09-22 15:09:53 -07:00
utimes.c
xattr.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-01-12 17:11:47 -08:00