Miklos Szeredi 2aff4534b6 ovl: check lower existence when removing ... Currently ovl_lookup() checks existence of lower file even if there's a non-directory on upper (which is always opaque). This is done so that remove can decide whether a whiteout is needed or not. It would be better to defer this check to unlink, since most of the time the gathered information about opaqueness will be unused. This adds a helper ovl_lower_positive() that checks if there's anything on the lower layer(s). The following patches also introduce changes to how the "opaque" attribute is updated on directories: this attribute is added when the directory is creted or moved over a whiteout or object covering something on the lower layer. However following changes will allow the attribute to remain on the directory after being moved, even if the new location doesn't cover anything. Because of this, we need to check lower layers even for opaque directories, so that whiteout is only created when necessary. This function will later be also used to decide about marking a directory opaque, so deal with negative dentries as well. When dealing with negative, it's enough to check for being a whiteout If the dentry is positive but not upper then it also obviously needs whiteout/opaque. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>		2016-12-16 11:02:55 +01:00
..
9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
adfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
affs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
afs	afs: call->operation_ID sometimes used as __be32 sometimes as u32	2016-10-13 17:03:52 +01:00
autofs4	autofs: refactor ioctl fn vector in iookup_dev_ioctl()	2016-10-11 15:06:31 -07:00
befs	befs fixes for 4.9-rc1	2016-10-15 12:09:13 -07:00
bfs	Merge remote-tracking branch 'ovl/rename2' into for-linus	2016-10-10 23:02:51 -04:00
btrfs	Merge branch 'for-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux	2016-11-04 20:08:16 -07:00
cachefiles	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
ceph	ceph: use default file splice read callback	2016-11-10 20:13:04 +01:00
cifs	CIFS: iterate over posix acl xattr entry correctly in ACL_to_cifs_posix()	2016-11-28 23:08:53 -06:00
coda	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
configfs	Merge remote-tracking branch 'ovl/rename2' into for-linus	2016-10-10 23:02:51 -04:00
cramfs
crypto	fscrypto: don't use on-stack buffer for key derivation	2016-11-19 20:56:13 -05:00
debugfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
devpts	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
dlm	dlm: free workqueues after the connections	2016-10-10 09:54:00 -05:00
ecryptfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
efivarfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
efs
exofs	fs: exofs: print a hex number after a 0x prefix	2016-10-27 18:43:43 -07:00
exportfs	exportfs: be careful to only return expected errors.	2016-10-06 09:07:44 -04:00
ext2	ext2: avoid bogus -Wmaybe-uninitialized warning	2016-10-18 11:29:35 +02:00
ext4	ext4: sanity check the block and cluster size at mount time	2016-11-19 20:58:15 -05:00
f2fs	This includes fixing a bug which references a wrong pointer, sum_page, in	2016-10-18 14:15:23 -07:00
fat	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
freevxfs
fscache
fuse	fuse: fix fuse_write_end() if zero bytes were copied	2016-11-15 12:34:21 +01:00
gfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hfsplus	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hostfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hpfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hugetlbfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
isofs	isofs: add KERN_CONT to printing of ER records	2016-11-30 10:41:26 -08:00
jbd2	jbd2: fix incorrect unlock on j_list_lock	2016-10-12 23:19:18 -04:00
jffs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
jfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
kernfs	kernfs: Add noop_fsync to supported kernfs_file_fops	2016-10-27 17:47:11 +02:00
lockd	treewide: remove redundant #include <linux/kconfig.h>	2016-10-11 15:06:33 -07:00
logfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
minix	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
ncpfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
nfs	NFS client bugfixes for Linux 4.9 part 4	2016-11-23 14:43:40 -08:00
nfs_common
nfsd	vfs: call vfs_clone_file_range() under freeze protection	2016-12-16 11:02:54 +01:00
nilfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
nls
notify	fsnotify: clean up spinlock assertions	2016-10-07 18:46:26 -07:00
ntfs	fs: remove the never implemented aio_fsync file operation	2016-10-30 13:09:42 -04:00
ocfs2	ocfs2: fix not enough credit panic	2016-11-11 08:12:37 -08:00
omfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
openpromfs	fs: Replace CURRENT_TIME with current_time() for inode timestamps	2016-09-27 21:06:21 -04:00
orangefs	orangefs: add .owner to debugfs file_operations	2016-11-16 11:52:19 -05:00
overlayfs	ovl: check lower existence when removing	2016-12-16 11:02:55 +01:00
proc	proc: fix NULL dereference when reading /proc/<pid>/auxv	2016-10-27 18:43:43 -07:00
pstore	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
qnx4
qnx6
quota	quota: fill in Q_XGETQSTAT inode information for inactive quotas	2016-08-15 17:43:31 +02:00
ramfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
reiserfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
romfs
squashfs	vfs: Remove {get,set,remove}xattr inode operations	2016-10-07 21:48:36 -04:00
sysfs	Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-10-14 12:18:50 -07:00
sysv	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
tracefs	fs: Replace CURRENT_TIME with current_time() for inode timestamps	2016-09-27 21:06:21 -04:00
ubifs	ubifs: Fix regression in ubifs_readdir()	2016-10-28 14:48:31 +02:00
udf	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
ufs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
xfs	xfs: defer should abort intent items if the trans roll fails	2016-10-24 14:21:18 +11:00
aio.c	aio: fix freeze protection of aio writes	2016-10-30 13:09:42 -04:00
anon_inodes.c
attr.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
bad_inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
binfmt_aout.c
binfmt_elf_fdpic.c	elf_fdpic_transfer_args_to_stack(): make it generic	2016-07-25 16:51:49 +10:00
binfmt_elf.c	x86/coredump: Use pr_reg size, rather that TIF_IA32 flag	2016-09-14 21:28:10 +02:00
binfmt_em86.c	fs/binfmt_em86.c: fix incompatible pointer type	2016-08-02 19:35:15 -04:00
binfmt_flat.c	binfmt_flat: allow compressed flat binary format to work on MMU systems	2016-07-28 13:29:12 +10:00
binfmt_misc.c	fs: Replace current_fs_time() with current_time()	2016-09-27 21:06:22 -04:00
binfmt_script.c
block_dev.c	block: implement (some of) fallocate for block devices	2016-10-11 15:06:30 -07:00
buffer.c	fs: use mapping_set_error instead of opencoded set_bit	2016-10-11 15:06:33 -07:00
char_dev.c	dax: define a unified inode/address_space for device-dax mappings	2016-08-23 22:58:51 -07:00
compat_binfmt_elf.c
compat_ioctl.c	fs: compat_ioctl: add pretimeout functions for watchdogs	2016-09-24 09:27:18 +02:00
compat.c	compat: remove compat_printk()	2016-09-27 21:20:53 -04:00
coredump.c	coredump: fix unfreezable coredumping task	2016-11-11 08:12:37 -08:00
dax.c	thp: reduce usage of huge zero page's atomic counter	2016-10-07 18:46:28 -07:00
dcache.c	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-08-07 10:01:14 -04:00
dcookies.c
direct-io.c	consistent treatment of EFAULT on O_DIRECT read/write	2016-10-03 20:38:55 -04:00
drop_caches.c
eventfd.c
eventpoll.c
exec.c	mm: replace get_user_pages_remote() write/force parameters with gup_flags	2016-10-19 08:12:02 -07:00
fcntl.c
fhandle.c
file_table.c
file.c	fs/file: more unsigned file descriptors	2016-09-27 18:47:38 -04:00
filesystems.c
fs_pin.c
fs_struct.c
fs-writeback.c	mm, writeback: flush plugged IO in wakeup_flusher_threads()	2016-08-09 19:58:06 -06:00
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
internal.h	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 13:04:49 -07:00
ioctl.c	vfs: call vfs_clone_file_range() under freeze protection	2016-12-16 11:02:54 +01:00
iomap.c	fs: Do to trim high file position bits in iomap_page_mkwrite_actor	2016-10-24 14:20:25 +11:00
Kconfig	mm/hugetlb: introduce ARCH_HAS_GIGANTIC_PAGE	2016-10-07 18:46:29 -07:00
Kconfig.binfmt	ARM: 8594/1: enable binfmt_flat on systems with an MMU	2016-08-12 16:47:05 +01:00
libfs.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
locks.c	locking, fs/locks: Add missing file_sem locks	2016-10-18 12:21:28 +02:00
Makefile
mbcache.c	mbcache: fix to detect failure of register_shrinker	2016-08-31 11:44:36 -04:00
mount.h	mnt: Add a per mount namespace limit on the number of mounts	2016-09-30 12:46:48 -05:00
mpage.c	block/mm: make bdev_ops->rw_page() take a bool for read/write	2016-08-07 14:41:02 -06:00
namei.c	Revert "vfs: rename: check backing inode being equal"	2016-12-16 11:02:54 +01:00
namespace.c	This adds a new gcc plugin named "latent_entropy". It is designed to	2016-10-15 10:03:15 -07:00
no-block.c
nsfs.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
open.c	xfs: reflink update for 4.9-rc1	2016-10-13 20:28:22 -07:00
pipe.c	pipe: cap initial pipe capacity according to pipe-max-size limit	2016-10-11 15:06:32 -07:00
pnode.c	mnt: Add a per mount namespace limit on the number of mounts	2016-09-30 12:46:48 -05:00
pnode.h	mnt: Add a per mount namespace limit on the number of mounts	2016-09-30 12:46:48 -05:00
posix_acl.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
proc_namespace.c
read_write.c	vfs: fix vfs_clone_file_range() for overlayfs files	2016-12-16 11:02:54 +01:00
readdir.c
select.c	fs/select: add vmalloc fallback for select(2)	2016-10-11 15:06:30 -07:00
seq_file.c	seq/proc: modify seq_put_decimal_[u]ll to take a const char *, not char	2016-10-07 18:46:30 -07:00
signalfd.c
splice.c	fix default_file_splice_read()	2016-11-26 20:05:42 -05:00
stack.c
stat.c
statfs.c
super.c	fs/super.c: don't fool lockdep in freeze_super() and thaw_super() paths	2016-10-14 20:41:59 -04:00
sync.c
timerfd.c
userfaultfd.c	mm: introduce fault_env	2016-07-26 16:19:19 -07:00
utimes.c	Merge remote-tracking branch 'jk/vfs' into work.misc	2016-10-08 11:06:08 -04:00
xattr.c	xattr: Fix setting security xattrs on sockfs	2016-11-17 00:00:23 -05:00