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i2som-imx-linux/fs
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Muchun Song 6be24bed9d mm: hugetlb: introduce a new config HUGETLB_PAGE_FREE_VMEMMAP 
The option HUGETLB_PAGE_FREE_VMEMMAP allows for the freeing of some
vmemmap pages associated with pre-allocated HugeTLB pages.  For example,
on X86_64 6 vmemmap pages of size 4KB each can be saved for each 2MB
HugeTLB page.  4094 vmemmap pages of size 4KB each can be saved for each
1GB HugeTLB page.

When a HugeTLB page is allocated or freed, the vmemmap array representing
the range associated with the page will need to be remapped.  When a page
is allocated, vmemmap pages are freed after remapping.  When a page is
freed, previously discarded vmemmap pages must be allocated before
remapping.

The config option is introduced early so that supporting code can be
written to depend on the option.  The initial version of the code only
provides support for x86-64.

If config HAVE_BOOTMEM_INFO_NODE is enabled, the freeing vmemmap page code
denpend on it to free vmemmap pages.  Otherwise, just use
free_reserved_page() to free vmemmmap pages.  The routine
register_page_bootmem_info() is used to register bootmem info.  Therefore,
make sure register_page_bootmem_info is enabled if
HUGETLB_PAGE_FREE_VMEMMAP is defined.

Link: https://lkml.kernel.org/r/20210510030027.56044-3-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Tested-by: Chen Huang <chenhuang5@huawei.com>
Tested-by: Bodeddula Balasubramaniam <bodeddub@amazon.com>
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Barry Song <song.bao.hua@hisilicon.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: HORIGUCHI NAOYA <naoya.horiguchi@nec.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mina Almasry <almasrymina@google.com>
Cc: Oliver Neukum <oneukum@suse.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Xiongchun Duan <duanxiongchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-06-30 20:47:25 -07:00
..
9p
Merge tag '9p-for-5.13-rc1' of git://github.com/martinetd/linux
2021-05-07 11:18:52 -07:00
adfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
affs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
afs
Merge tag 'netfs-fixes-20210621' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
2021-06-25 09:41:29 -07:00
autofs
…
befs
…
bfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
btrfs
Merge tag 'for-5.13-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2021-06-18 16:39:03 -07:00
cachefiles
…
ceph
ceph: fix error handling in ceph_atomic_open and ceph_lookup
2021-06-22 13:53:28 +02:00
cifs
cifs: change format of CIFS_FULL_KEY_DUMP ioctl
2021-05-27 15:26:32 -05:00
coda
…
configfs
fs: move ramfs_aops to libfs
2021-06-29 10:53:48 -07:00
cramfs
…
crypto
…
debugfs
debugfs: Fix debugfs_read_file_str()
2021-06-04 15:01:08 +02:00
devpts
…
dlm
…
ecryptfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
efivarfs
…
efs
…
erofs
erofs: fix 1 lcluster-sized pcluster for big pcluster
2021-05-13 15:58:46 +08:00
exfat
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
exportfs
…
ext2
fs: remove noop_set_page_dirty()
2021-06-29 10:53:48 -07:00
ext4
fs: remove noop_set_page_dirty()
2021-06-29 10:53:48 -07:00
f2fs
f2fs: return EINVAL for hole cases in swap file
2021-05-12 07:38:00 -07:00
fat
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
freevxfs
…
fscache
…
fuse
mm: move page dirtying prototypes from mm.h
2021-06-29 10:53:48 -07:00
gfs2
iomap: use __set_page_dirty_nobuffers
2021-06-29 10:53:48 -07:00
hfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
hfsplus
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
hostfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-05-02 09:14:01 -07:00
hpfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
hugetlbfs
mm/hugetlb: expand restore_reserve_on_error functionality
2021-06-16 09:24:42 -07:00
iomap
iomap: use __set_page_dirty_nobuffers
2021-06-29 10:53:48 -07:00
isofs
isofs: fix fall-through warnings for Clang
2021-05-06 19:24:13 -07:00
jbd2
…
jffs2
Merge tag 'for-linus-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
2021-05-04 18:08:40 -07:00
jfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
kernfs
fs: move ramfs_aops to libfs
2021-06-29 10:53:48 -07:00
lockd
…
minix
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
netfs
netfs: fix test for whether we can skip read when writing beyond EOF
2021-06-21 21:24:07 +01:00
nfs
NFSv4: Fix second deadlock in nfs4_evict_inode()
2021-06-03 10:14:42 -04:00
nfs_common
…
nfsd
Merge tag 'nfs-for-5.13-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
2021-05-07 11:23:41 -07:00
nilfs2
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
nls
…
notify
fanotify: fix copy_event_to_user() fid error clean up
2021-06-14 12:16:37 +02:00
ntfs
ntfs: fix validity check for file name attribute
2021-06-29 10:53:45 -07:00
ocfs2
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
omfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
openpromfs
…
orangefs
…
overlayfs
Merge tag 'ovl-update-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2021-04-30 15:17:08 -07:00
proc
mm: gup: pack has_pinned in MMF_HAS_PINNED
2021-06-29 10:53:48 -07:00
pstore
…
qnx4
…
qnx6
…
quota
quota: Use 'hlist_for_each_entry' to simplify code
2021-05-10 16:27:49 +02:00
ramfs
fs: move ramfs_aops to libfs
2021-06-29 10:53:48 -07:00
reiserfs
treewide: remove editor modelines and cruft
2021-05-07 00:26:34 -07:00
romfs
…
squashfs
squashfs: add option to panic on errors
2021-06-29 10:53:46 -07:00
sysfs
…
sysv
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
tracefs
…
ubifs
Merge tag 'for-linus-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
2021-05-04 18:08:40 -07:00
udf
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
ufs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
unicode
.gitignore: prefix local generated files with a slash
2021-05-02 00:43:35 +09:00
vboxsf
…
verity
…
xfs
fs: remove noop_set_page_dirty()
2021-06-29 10:53:48 -07:00
zonefs
mm: move page dirtying prototypes from mm.h
2021-06-29 10:53:48 -07:00
aio.c
Revert "mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio"
2021-04-30 11:20:39 -07:00
anon_inodes.c
…
attr.c
…
bad_inode.c
…
binfmt_aout.c
binfmt: remove in-tree usage of MAP_EXECUTABLE
2021-06-29 10:53:50 -07:00
binfmt_elf_fdpic.c
binfmt: remove in-tree usage of MAP_EXECUTABLE
2021-06-29 10:53:50 -07:00
binfmt_elf.c
binfmt: remove in-tree usage of MAP_EXECUTABLE
2021-06-29 10:53:50 -07:00
binfmt_em86.c
…
binfmt_flat.c
binfmt: remove in-tree usage of MAP_EXECUTABLE
2021-06-29 10:53:50 -07:00
binfmt_misc.c
…
binfmt_script.c
…
block_dev.c
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
buffer.c
mm/writeback: move __set_page_dirty() to core mm
2021-06-29 10:53:48 -07:00
char_dev.c
…
compat_binfmt_elf.c
…
coredump.c
coredump: Limit what can interrupt coredumps
2021-06-10 14:02:29 -07:00
d_path.c
…
dax.c
dax: fix ENOMEM handling in grab_mapping_entry()
2021-06-29 10:53:47 -07:00
dcache.c
…
direct-io.c
…
drop_caches.c
…
eventfd.c
…
eventpoll.c
fs/epoll: restore waking from ep_done_scan()
2021-05-06 19:24:13 -07:00
exec.c
…
fcntl.c
…
fhandle.c
…
file_table.c
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file.c
Merge branch 'work.file' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-05-03 11:05:28 -07:00
filesystems.c
…
fs_context.c
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fs_parser.c
vfs: fs_parser: clean up kernel-doc warnings
2021-04-30 11:20:35 -07:00
fs_pin.c
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fs_struct.c
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fs_types.c
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fs-writeback.c
writeback, cgroup: release dying cgwbs by switching attached inodes
2021-06-29 10:53:48 -07:00
fsopen.c
…
init.c
…
inode.c
mm: remove nrexceptional from inode: remove BUG_ON
2021-05-05 11:27:20 -07:00
internal.h
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io_uring.c
io_uring: add feature flag for rsrc tags
2021-06-10 16:33:51 -06:00
io-wq.c
io-wq: Fix UAF when wakeup wqe in hash waitqueue
2021-05-26 09:03:56 -06:00
io-wq.h
io_uring/io-wq: close io-wq full-stop gap
2021-05-25 19:39:58 -06:00
ioctl.c
…
Kconfig
mm: hugetlb: introduce a new config HUGETLB_PAGE_FREE_VMEMMAP
2021-06-30 20:47:25 -07:00
Kconfig.binfmt
…
kernel_read_file.c
…
libfs.c
fs: remove noop_set_page_dirty()
2021-06-29 10:53:48 -07:00
locks.c
Merge tag 'nfsd-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
2021-05-05 13:44:19 -07:00
Makefile
…
mbcache.c
…
mount.h
…
mpage.c
…
namei.c
…
namespace.c
fs/mount_setattr: tighten permission checks
2021-05-12 14:13:16 +02:00
no-block.c
…
nsfs.c
…
open.c
…
pipe.c
…
pnode.c
…
pnode.h
…
posix_acl.c
…
proc_namespace.c
…
read_write.c
…
readdir.c
…
remap_range.c
…
select.c
…
seq_file.c
…
signalfd.c
signalfd: Remove SIL_PERF_EVENT fields from signalfd_siginfo
2021-05-18 16:20:54 -05:00
splice.c
…
stack.c
…
stat.c
…
statfs.c
…
super.c
…
sync.c
…
timerfd.c
…
userfaultfd.c
userfaultfd: add UFFDIO_CONTINUE ioctl
2021-05-05 11:27:22 -07:00
utimes.c
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xattr.c
…