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2664bd0897c2889258472a1ee922ef9d4c5fa58f
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Vivek Goyal 2664bd0897 ovl: Store lower data inode in ovl_inode 
Right now ovl_inode stores inode pointer for lower inode.  This helps with
quickly getting lower inode given overlay inode (ovl_inode_lower()).

Now with metadata only copy-up, we can have metacopy inode in middle layer
as well and inode containing data can be different from ->lower.  I need to
be able to open the real file in ovl_open_realfile() and for that I need to
quickly find the lower data inode.

Hence store lower data inode also in ovl_inode.  Also provide an helper
ovl_inode_lowerdata() to access this field.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-07-20 09:56:11 +02:00
..
9p
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
adfs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
affs
affs: fix potential memory leak when parsing option 'prefix'
2018-05-28 12:36:41 +02:00
afs
Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-16 16:32:04 +09:00
autofs
autofs: Fix typo s/thenew new/the new/ in AUTOFS4_FS description
2018-06-12 12:31:19 -07:00
befs
fix a series of Documentation/ broken file name references
2018-06-15 18:10:01 -03:00
bfs
bfs_add_entry: pass name/len as qstr pointer
2018-05-22 14:27:50 -04:00
btrfs
vfs: dedupe: rationalize args
2018-07-06 23:57:03 +02:00
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
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
cifs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
coda
vfs: change inode times to use struct timespec64
2018-06-05 16:57:31 -07:00
configfs
vfs: change inode times to use struct timespec64
2018-06-05 16:57:31 -07:00
cramfs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
crypto
Merge tag 'f2fs-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
2018-06-11 10:16:13 -07:00
debugfs
Revert "debugfs: inode: debugfs_create_dir uses mode permission from parent"
2018-06-12 20:52:16 -07:00
devpts
…
dlm
treewide: Use array_size() in vmalloc()
2018-06-12 16:19:22 -07:00
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
…
efs
…
exofs
exofs: avoid VLA in structures
2018-06-15 07:55:24 +09:00
exportfs
ovl: do not try to reconnect a disconnected origin dentry
2018-04-12 12:04:49 +02:00
ext2
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
ext4
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
f2fs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
fat
Merge branch 'akpm' (patches from Andrew)
2018-06-15 08:51:42 +09:00
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 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
gfs2
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
hfs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
hfsplus
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
hostfs
vfs: change inode times to use struct timespec64
2018-06-05 16:57:31 -07:00
hpfs
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
hugetlbfs
alloc_file(): switch to passing O_... flags instead of FMODE_... mode
2018-07-12 10:02:57 -04:00
isofs
isofs: fix potential memory leak in mount option parsing
2018-04-16 09:47:41 +02:00
jbd2
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
jffs2
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
jfs
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
kernfs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
lockd
…
minix
minix_lookup: use d_splice_alias()
2018-05-22 14:27:52 -04:00
nfs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
nfs_common
…
nfsd
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
nilfs2
do d_instantiate/unlock_new_inode combinations safely
2018-05-11 15:36:37 -04:00
nls
…
notify
fsnotify: add fsnotify_add_inode_mark() wrappers
2018-05-18 14:58:22 +02:00
ntfs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
ocfs2
vfs: dedupe: rationalize args
2018-07-06 23:57:03 +02:00
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 'docs-broken-links' of git://linuxtv.org/mchehab/experimental
2018-06-17 05:25:18 +09:00
overlayfs
ovl: Store lower data inode in ovl_inode
2018-07-20 09:56:11 +02:00
proc
proc: add proc_seq_release
2018-06-27 20:44:38 -04:00
pstore
pstore: Remove bogus format string definition
2018-06-14 14:57:24 +02:00
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
…
ramfs
…
reiserfs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
romfs
romfs_lookup: switch to d_splice_alias()
2018-05-22 14:27:55 -04:00
squashfs
…
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
…
ubifs
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
udf
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
ufs
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
xfs
vfs: dedupe: rationalize args
2018-07-06 23:57:03 +02:00
aio.c
alloc_file(): switch to passing O_... flags instead of FMODE_... mode
2018-07-12 10:02:57 -04:00
anon_inodes.c
alloc_file(): switch to passing O_... flags instead of FMODE_... mode
2018-07-12 10:02:57 -04:00
attr.c
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2018-06-15 07:31:07 +09:00
bad_inode.c
vfs: change inode times to use struct timespec64
2018-06-05 16:57:31 -07:00
binfmt_aout.c
exec: introduce finalize_exec() before start_thread()
2018-04-11 10:28:37 -07:00
binfmt_elf_fdpic.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
binfmt_elf.c
coredump: fix spam with zero VMA process
2018-06-15 07:55:24 +09:00
binfmt_em86.c
…
binfmt_flat.c
exec: introduce finalize_exec() before start_thread()
2018-04-11 10:28:37 -07:00
binfmt_misc.c
turn filp_clone_open() into inline wrapper for dentry_open()
2018-07-10 23:29:03 -04:00
binfmt_script.c
…
block_dev.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
buffer.c
fs: move page_cache_seek_hole_data to iomap.c
2018-06-01 18:37:33 -07:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
autofs: clean up includes
2018-06-07 17:34:40 -07:00
compat.c
ncpfs: remove compat functionality
2018-06-05 19:23:26 +02:00
coredump.c
…
d_path.c
…
dax.c
Merge tag 'libnvdimm-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2018-06-08 17:21:52 -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
…
direct-io.c
block: consistently use GFP_NOIO instead of __GFP_NORECLAIM
2018-05-14 08:55:18 -06:00
drop_caches.c
…
eventfd.c
eventfd: only return events requested in poll_mask()
2018-06-14 20:07:38 -04:00
eventpoll.c
eventpoll: switch to ->poll_mask
2018-06-14 20:09:28 -04:00
exec.c
Merge branch 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-06-10 10:17:09 -07:00
fcntl.c
mm: restructure memfd code
2018-06-07 17:34:35 -07:00
fhandle.c
…
file_table.c
vfs: make open_with_fake_path() not contribute to nr_files
2018-07-18 15:44:40 +02:00
file.c
…
filesystems.c
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
bdi: Fix oops in wb_workfn()
2018-05-03 16:11:37 -06:00
inode.c
Revert "vfs: update ovl inode before relatime check"
2018-07-18 15:44:43 +02:00
internal.h
Revert "vfs: update ovl inode before relatime check"
2018-07-18 15:44:43 +02:00
ioctl.c
vfs: export vfs_ioctl() to modules
2018-07-18 15:44:40 +02:00
iomap.c
Merge tag 'xfs-4.18-merge-10' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2018-06-12 15:49:00 -07:00
Kconfig
autofs: remove left-over autofs4 stubs
2018-06-11 08:22:34 -07:00
Kconfig.binfmt
docs: Fix more broken references
2018-06-15 18:11:26 -03:00
libfs.c
…
locks.c
Partially revert "locks: fix file locking on overlayfs"
2018-07-18 15:44:43 +02:00
Makefile
autofs: remove left-over autofs4 stubs
2018-06-11 08:22:34 -07:00
mbcache.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
mount.h
…
mpage.c
…
namei.c
Revert "vfs: update ovl inode before relatime check"
2018-07-18 15:44:43 +02:00
namespace.c
vfs: fix freeze protection in mnt_want_write_file() for overlayfs
2018-07-18 15:44:43 +02:00
no-block.c
…
nsfs.c
…
open.c
Revert "vfs: do get_write_access() on upper layer of overlayfs"
2018-07-18 15:44:43 +02:00
pipe.c
alloc_file(): switch to passing O_... flags instead of FMODE_... mode
2018-07-12 10:02:57 -04:00
pnode.c
…
pnode.h
…
posix_acl.c
…
proc_namespace.c
…
read_write.c
vfs: export vfs_dedupe_file_range_one() to modules
2018-07-18 15:44:40 +02:00
readdir.c
…
select.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
seq_file.c
proc: fix smaps and meminfo alignment
2018-05-25 18:12:11 -07:00
signalfd.c
Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-16 16:21:50 +09:00
splice.c
Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-16 16:21:50 +09:00
stack.c
…
stat.c
…
statfs.c
…
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
…
timerfd.c
timerfd: convert to ->poll_mask
2018-05-26 09:16:44 +02:00
userfaultfd.c
userfaultfd: prevent non-cooperative events vs mcopy_atomic races
2018-06-07 17:34:38 -07:00
utimes.c
…
xattr.c
Revert "ovl: don't allow writing ioctl on lower layer"
2018-07-18 15:44:43 +02:00