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linux/fs
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Matthew Wilcox 1d40a5ea01 mm: mark pages in use for page tables 
Define a new PageTable bit in the page_type and use it to mark pages in
use as page tables.  This can be helpful when debugging crashdumps or
analysing memory fragmentation.  Add a KPF flag to report these pages to
userspace and update page-types.c to interpret that flag.

Note that only pages currently accounted as NR_PAGETABLES are tracked as
PageTable; this does not include pgd/p4d/pud/pmd pages.  Those will be the
subject of a later patch.

Link: http://lkml.kernel.org/r/20180518194519.3820-4-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-06-07 17:34:37 -07:00
..
9p
fs/9p: detect invalid options as much as possible
2018-06-07 17:34:34 -07:00
adfs
adfs_lookup: do not fail with ENOENT on negatives, use d_splice_alias()
2018-05-22 14:27:56 -04:00
affs
affs: fix potential memory leak when parsing option 'prefix'
2018-05-28 12:36:41 +02:00
afs
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-06-06 18:39:49 -07:00
autofs4
autofs: mount point create should honour passed in mode
2018-04-20 17:18:35 -07:00
befs
befs_lookup(): use d_splice_alias()
2018-05-21 14:30:07 -04:00
bfs
bfs_add_entry: pass name/len as qstr pointer
2018-05-22 14:27:50 -04:00
btrfs
Merge tag 'for-4.18-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2018-06-04 14:29:13 -07:00
cachefiles
Merge branch 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-04 10:00:01 -07:00
ceph
ceph: fix iov_iter issues in ceph_direct_read_write()
2018-05-10 10:15:12 +02:00
cifs
Merge tag '4.18-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
2018-06-04 14:42:46 -07:00
coda
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
configfs
configfs: make ci_type field, some pointers and function arguments const
2017-10-19 16:15:16 +02:00
cramfs
cramfs_lookup(): use d_splice_alias()
2018-05-22 14:27:51 -04:00
crypto
fscrypt: log the crypto algorithm implementations
2018-05-20 16:36:00 -04:00
debugfs
debugfs: inode: debugfs_create_dir uses mode permission from parent
2018-05-14 16:48:18 +02:00
devpts
devpts: comment devpts_mntget()
2018-03-14 13:31:23 +01:00
dlm
dlm: remove O_NONBLOCK flag in sctp_connect_to_sock
2018-05-29 10:48:35 -05:00
ecryptfs
Merge branch 'fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs into aio-base
2018-05-26 09:16:25 +02:00
efivarfs
efivarfs: Limit the rate for non-root to read files
2018-02-22 10:21:02 -08:00
efs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
exofs
scsi/osd: remove the gfp argument to osd_start_request
2018-05-14 08:55:09 -06:00
exportfs
ovl: do not try to reconnect a disconnected origin dentry
2018-04-12 12:04:49 +02:00
ext2
Merge tag 'xfs-4.18-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2018-06-05 13:24:20 -07:00
ext4
Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt
2018-06-05 15:15:32 -07:00
f2fs
Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt
2018-06-05 15:15:32 -07:00
fat
vfat: simplify checks in vfat_lookup()
2018-05-13 12:09:14 -04:00
freevxfs
freevxfs_lookup(): use d_splice_alias()
2018-05-22 14:27:51 -04:00
fscache
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
fuse
Merge tag 'fuse-update-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
2018-06-07 08:50:57 -07:00
gfs2
Merge tag 'xfs-4.18-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2018-06-05 13:24:20 -07:00
hfs
hfs: don't allow mounting over .../rsrc
2018-05-22 14:28:00 -04:00
hfsplus
Merge branch 'work.lookup' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-04 13:46:22 -07:00
hostfs
hostfs: rename do_rmdir() to hostfs_do_rmdir()
2018-04-02 20:15:53 +02:00
hpfs
hpfs: don't bother with the i_version counter or f_version
2017-12-10 12:58:18 -08:00
hugetlbfs
hugetlbfs: fix bug in pgoff overflow checking
2018-04-05 21:36:21 -07:00
isofs
isofs: fix potential memory leak in mount option parsing
2018-04-16 09:47:41 +02:00
jbd2
jbd2: remove NULL check before calling kmem_cache_destroy()
2018-05-20 22:38:26 -04:00
jffs2
do d_instantiate/unlock_new_inode combinations safely
2018-05-11 15:36:37 -04:00
jfs
Merge branch 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-04 10:00:01 -07:00
kernfs
Merge tag 'driver-core-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2018-06-05 16:29:19 -07:00
lockd
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
minix
minix_lookup: use d_splice_alias()
2018-05-22 14:27:52 -04:00
nfs
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
nfs_common
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
nfsd
Merge tag 'for-4.18/block-20180603' of git://git.kernel.dk/linux-block
2018-06-04 07:58:06 -07:00
nilfs2
do d_instantiate/unlock_new_inode combinations safely
2018-05-11 15:36:37 -04:00
nls
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
notify
fsnotify: fix ignore mask logic in send_to_group()
2018-04-13 15:52:49 +02:00
ntfs
ntfs: fix bogus __mark_inode_dirty(I_DIRTY_SYNC | I_DIRTY_DATASYNC) call
2018-03-28 01:39:02 -04:00
ocfs2
fs: ocfs2: use new return type vm_fault_t
2018-06-07 17:34:34 -07:00
omfs
omfs_lookup(): report IO errors, use d_splice_alias()
2018-05-22 14:27:58 -04:00
openpromfs
openpromfs: switch to d_splice_alias()
2018-05-22 14:27:57 -04:00
orangefs
Merge tag 'for-linus-4.18-ofs' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
2018-06-07 09:23:12 -07:00
overlayfs
ovl: use inode_insert5() to hash a newly created inode
2018-05-31 11:06:12 +02:00
proc
mm: mark pages in use for page tables
2018-06-07 17:34:37 -07:00
pstore
pstore: fix crypto dependencies without compression
2018-04-06 15:45:33 -07:00
qnx4
qnx4_lookup: use d_splice_alias()
2018-05-22 14:27:52 -04:00
qnx6
qnx6_lookup: switch to d_splice_alias()
2018-05-22 14:27:54 -04:00
quota
fs: quota: Replace GFP_ATOMIC with GFP_KERNEL in dquot_init
2018-04-09 17:48:54 +02:00
ramfs
mm: make pagevec_lookup() update index
2017-09-06 17:27:26 -07:00
reiserfs
Merge branch 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-04 10:00:01 -07:00
romfs
romfs_lookup: switch to d_splice_alias()
2018-05-22 14:27:55 -04:00
squashfs
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
sysfs
unfuck sysfs_mount()
2018-05-21 14:30:09 -04:00
sysv
sysv_lookup: use d_splice_alias()
2018-05-22 14:27:53 -04:00
tracefs
VFS: Don't use save/replace_mount_options if not using generic_show_options
2017-07-06 03:31:46 -04:00
ubifs
Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt
2018-06-05 15:15:32 -07:00
udf
Merge tag 'udf_for_v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2018-06-07 09:36:29 -07:00
ufs
do d_instantiate/unlock_new_inode combinations safely
2018-05-11 15:36:37 -04:00
xfs
Merge tag 'xfs-4.18-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2018-06-05 13:24:20 -07:00
aio.c
aio: sanitize the limit checking in io_submit(2)
2018-05-29 23:20:17 -04:00
anon_inodes.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
attr.c
fs: Allow superblock owner to replace invalid owners of inodes
2018-05-24 11:57:18 -05:00
bad_inode.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
binfmt_aout.c
exec: introduce finalize_exec() before start_thread()
2018-04-11 10:28:37 -07:00
binfmt_elf_fdpic.c
exec: introduce finalize_exec() before start_thread()
2018-04-11 10:28:37 -07:00
binfmt_elf.c
fs, elf: don't complain MAP_FIXED_NOREPLACE unless -EEXIST error
2018-04-20 17:18:36 -07:00
binfmt_em86.c
…
binfmt_flat.c
exec: introduce finalize_exec() before start_thread()
2018-04-11 10:28:37 -07:00
binfmt_misc.c
fs: add ksys_close() wrapper; remove in-kernel calls to sys_close()
2018-04-02 20:16:00 +02:00
binfmt_script.c
exec: load_script: kill the onstack interp[BINPRM_BUF_SIZE] array
2017-10-03 17:54:25 -07:00
block_dev.c
fs: convert block_dev.c to bioset_init()
2018-05-30 15:33:32 -06:00
buffer.c
fs: move page_cache_seek_hole_data to iomap.c
2018-06-01 18:37:33 -07:00
char_dev.c
block, char_dev: Use correct format specifier for unsigned ints
2018-03-15 17:59:24 +01:00
compat_binfmt_elf.c
fs/binfmt: Convert obsolete cputime type to nsecs
2017-02-01 09:13:51 +01:00
compat_ioctl.c
fs: compat_ioctl: add new DVB demux ioctls
2017-12-28 11:17:29 -05:00
compat.c
fs/compat.c: trim unused includes
2017-04-17 12:52:27 -04:00
coredump.c
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-11-17 11:54:55 -08:00
d_path.c
split d_path() and friends into a separate file
2018-03-29 15:07:46 -04:00
dax.c
fs/dax.c: use new return type vm_fault_t
2018-06-07 17:34:33 -07:00
dcache.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-04 10:14:28 -07:00
dcookies.c
fs: add do_lookup_dcookie() helper; remove in-kernel call to syscall
2018-04-02 20:15:39 +02:00
direct-io.c
block: consistently use GFP_NOIO instead of __GFP_NORECLAIM
2018-05-14 08:55:18 -06:00
drop_caches.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
eventfd.c
eventfd: switch to ->poll_mask
2018-05-26 09:16:44 +02:00
eventpoll.c
fs: add new vfs_poll and file_can_poll helpers
2018-05-26 09:16:44 +02:00
exec.c
umh: introduce fork_usermode_blob() helper
2018-05-23 13:23:39 -04:00
fcntl.c
mm: restructure memfd code
2018-06-07 17:34:35 -07:00
fhandle.c
vfs: Copy struct mount.mnt_id to userspace using put_user()
2018-01-15 12:07:51 -08:00
file_table.c
vfs: remove unused hardirq.h
2017-12-07 14:23:30 -05:00
file.c
fs: add ksys_close() wrapper; remove in-kernel calls to sys_close()
2018-04-02 20:16:00 +02:00
filesystems.c
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
fs_pin.c
Merge branch 'linus' into locking/core, to resolve conflicts
2017-11-07 10:32:44 +01:00
fs_struct.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>
2017-03-02 08:42:35 +01:00
fs-writeback.c
bdi: Fix oops in wb_workfn()
2018-05-03 16:11:37 -06:00
inode.c
Merge tag 'ovl-fixes-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2018-06-07 08:53:50 -07:00
internal.h
Revert "fs: fold open_check_o_direct into do_dentry_open"
2018-06-03 10:58:23 -07:00
ioctl.c
fs: Allow CAP_SYS_ADMIN in s_user_ns to freeze and thaw filesystems
2018-05-24 12:04:28 -05:00
iomap.c
fs: use ->is_partially_uptodate in page_cache_seek_hole_data
2018-06-01 18:37:33 -07:00
Kconfig
mm: restructure memfd code
2018-06-07 17:34:35 -07:00
Kconfig.binfmt
treewide: simplify Kconfig dependencies for removed archs
2018-03-26 15:55:57 +02:00
libfs.c
fs, dax: prepare for dax-specific address_space_operations
2018-03-30 11:34:55 -07:00
locks.c
proc: introduce proc_create_seq_private
2018-05-16 07:23:35 +02:00
Makefile
split d_path() and friends into a separate file
2018-03-29 15:07:46 -04:00
mbcache.c
mbcache: make sure c_entry_count is not decremented past zero
2018-01-09 23:57:52 -05:00
mount.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mpage.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
namei.c
Merge branch 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2018-06-04 15:21:19 -07:00
namespace.c
fs: Allow superblock owner to access do_remount_sb()
2018-05-24 12:02:25 -05:00
no-block.c
…
nsfs.c
net: Export open_related_ns()
2018-02-15 15:34:42 -05:00
open.c
Revert "fs: fold open_check_o_direct into do_dentry_open"
2018-06-03 10:58:23 -07:00
pipe.c
pipe: convert to ->poll_mask
2018-05-26 09:16:44 +02:00
pnode.c
mnt: Make propagate_umount less slow for overlapping mount propagation trees
2017-05-23 08:41:17 -05:00
pnode.h
mnt: Tuck mounts under others instead of creating shadow/side mounts.
2017-02-04 00:01:06 +13:00
posix_acl.c
posix_acl: convert posix_acl.a_refcount from atomic_t to refcount_t
2018-01-02 19:27:28 -08:00
proc_namespace.c
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
read_write.c
fs: avoid fdput() after failed fdget() in vfs_dedupe_file_range()
2018-04-15 23:36:26 -04:00
readdir.c
fs: add ksys_getdents64() helper; remove in-kernel calls to sys_getdents64()
2018-04-02 20:16:02 +02:00
select.c
fs: introduce new ->get_poll_head and ->poll_mask methods
2018-05-26 09:16:44 +02:00
seq_file.c
proc: fix smaps and meminfo alignment
2018-05-25 18:12:11 -07:00
signalfd.c
signal: Extend siginfo_layout with SIL_FAULT_{MCEERR|BNDERR|PKUERR}
2018-04-26 19:51:14 -05:00
splice.c
fs: add do_vmsplice() helper; remove in-kernel call to syscall
2018-04-02 20:15:40 +02:00
stack.c
…
stat.c
fs: add do_readlinkat() helper; remove internal call to sys_readlinkat()
2018-04-02 20:15:34 +02:00
statfs.c
Rename superblock flags (MS_xyz -> SB_xyz)
2017-11-27 13:05:09 -08:00
super.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-04 10:14:28 -07:00
sync.c
Merge tag 'xfs-4.17-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2018-04-04 12:44:02 -07:00
timerfd.c
timerfd: convert to ->poll_mask
2018-05-26 09:16:44 +02:00
userfaultfd.c
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
utimes.c
fs: add do_compat_futimesat() helper; remove in-kernel call to compat syscall
2018-04-02 20:15:44 +02:00
xattr.c
vfs: delete unnecessary assignment in vfs_listxattr
2018-05-29 13:22:41 -04:00