linux/Documentation/filesystems
Amir Goldstein 420332b941 ovl: mark xwhiteouts directory with overlay.opaque='x'
An opaque directory cannot have xwhiteouts, so instead of marking an
xwhiteouts directory with a new xattr, overload overlay.opaque xattr
for marking both opaque dir ('y') and xwhiteouts dir ('x').

This is more efficient as the overlay.opaque xattr is checked during
lookup of directory anyway.

This also prevents unnecessary checking the xattr when reading a
directory without xwhiteouts, i.e. most of the time.

Note that the xwhiteouts marker is not checked on the upper layer and
on the last layer in lowerstack, where xwhiteouts are not expected.

Fixes: bc8df7a3dc ("ovl: Add an alternative type of whiteout")
Cc: <stable@vger.kernel.org> # v6.7
Reviewed-by: Alexander Larsson <alexl@redhat.com>
Tested-by: Alexander Larsson <alexl@redhat.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
2024-01-23 12:39:48 +02:00
..
caching Documentation: Fix typos 2023-08-18 11:29:03 -06:00
ext4 Documentation: Fix typos 2023-08-18 11:29:03 -06:00
nfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
smb ksmbd: update feature status in documentation 2024-01-14 11:39:49 -06:00
spufs Documentation: spufs: correct a duplicate word typo 2022-09-27 13:21:44 -06:00
xfs Documentation: xfs: consolidate XFS docs into its own subdirectory 2023-12-07 14:49:13 +05:30
9p.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
adfs.rst
affs.rst affs: fix basic permission bits to actually work 2020-08-31 12:20:31 +02:00
afs.rst afs: Documentation: correct reference to CONFIG_AFS_FS 2023-07-21 13:46:02 -06:00
api-summary.rst block: move fs/block_dev.c to block/bdev.c 2021-09-07 08:39:40 -06:00
autofs-mount-control.rst autofs: use flexible array in ioctl structure 2023-05-30 16:42:00 -07:00
autofs.rst autofs: use flexible array in ioctl structure 2023-05-30 16:42:00 -07:00
automount-support.rst docs: filesystems: convert automount-support.txt to ReST 2020-05-05 09:22:21 -06:00
befs.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
bfs.rst
btrfs.rst MAINTAINERS: remove links to obsolete btrfs.wiki.kernel.org 2023-09-08 14:21:27 +02:00
ceph.rst ceph: update documentation regarding snapshot naming limitations 2023-08-24 11:24:36 +02:00
coda.rst Documentation: coda: annotate duplicated words 2020-07-13 10:02:32 -06:00
configfs.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
cramfs.rst
dax.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
debugfs.rst debugfs: small Documentation cleaning 2022-11-09 13:58:55 -07:00
devpts.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
directory-locking.rst rename(): avoid a deadlock in the case of parents having no common ancestor 2023-11-25 02:54:14 -05:00
dlmfs.rst docs: update ocfs2-devel mailing list address 2023-07-08 09:29:29 -07:00
dnotify.rst docs: filesystems: convert dnotify.txt to ReST 2020-05-05 09:22:22 -06:00
ecryptfs.rst
efivarfs.rst docs: filesystems: add info about efivars content 2020-05-25 18:59:59 -06:00
erofs.rst MAINTAINERS: erofs: add EROFS webpage 2023-11-17 19:55:46 +08:00
ext2.rst ext2: remove nobh support 2022-08-02 12:34:04 -04:00
ext3.rst
f2fs.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
fiemap.rst A lot of bug fixes and cleanups for ext4, including: 2020-06-05 16:19:28 -07:00
files.rst file: convert to SLAB_TYPESAFE_BY_RCU 2023-10-19 11:02:48 +02:00
fscrypt.rst fscrypt: document that CephFS supports fscrypt now 2023-12-26 22:55:42 -06:00
fsverity.rst ovl: Add framework for verity support 2023-08-12 19:02:38 +03:00
fuse-io.rst docs/fuse-io: Document the usage of DIRECT_IO_ALLOW_MMAP 2023-12-04 10:16:53 +01:00
fuse.rst fuse: Add module param for CAP_SYS_ADMIN access bypassing allow_other 2022-07-21 16:06:19 +02:00
gfs2-glocks.rst gfs2 fixes 2023-09-05 13:00:28 -07:00
gfs2-uevents.rst
gfs2.rst Documentation: Update filesystems/gfs2.rst 2020-12-01 00:25:20 +01:00
hfs.rst Replace HTTP links with HTTPS ones: Documentation/filesystems 2020-06-26 11:14:12 -06:00
hfsplus.rst
hpfs.rst Replace HTTP links with HTTPS ones: Documentation/filesystems 2020-06-26 11:14:12 -06:00
idmappings.rst Documentation work keeps chugging along; stuff for 6.6 includes: 2023-08-30 20:05:42 -07:00
index.rst Documentation: xfs: consolidate XFS docs into its own subdirectory 2023-12-07 14:49:13 +05:30
inotify.rst
isofs.rst
journalling.rst jbd2: drop jbd2_fc_init documentation 2020-11-06 23:01:03 -05:00
locking.rst fix directory locking scheme on rename 2024-01-11 20:00:22 -08:00
locks.rst docs: fs: locks.rst: update comment about mandatory file locking 2021-10-19 06:48:21 -04:00
mount_api.rst fs_context: drop the unused lsm_flags member 2023-03-16 14:38:28 +01:00
netfs_library.rst netfs, fscache: Remove ->begin_cache_operation 2023-12-24 15:08:48 +00:00
nilfs2.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
ntfs3.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
ntfs.rst
ocfs2-online-filecheck.rst
ocfs2.rst docs: update ocfs2-devel mailing list address 2023-07-08 09:29:29 -07:00
omfs.rst Replace HTTP links with HTTPS ones: OMFS 2020-07-13 11:24:43 -06:00
orangefs.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
overlayfs.rst ovl: mark xwhiteouts directory with overlay.opaque='x' 2024-01-23 12:39:48 +02:00
path-lookup.rst Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-07-03 11:41:14 -07:00
path-lookup.txt Replace HTTP links with HTTPS ones: documentation 2020-06-08 09:30:19 -06:00
porting.rst dcache stuff for this cycle 2024-01-11 20:11:35 -08:00
proc.rst mm: thp: introduce multi-size THP sysfs interface 2023-12-20 14:48:12 -08:00
qnx6.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
quota.rst quota: Fixup http links in quota doc 2020-07-09 08:14:01 +02:00
ramfs-rootfs-initramfs.rst Documentation/filesystems: ramfs-rootfs-initramfs: use :Author: 2023-05-16 12:55:35 -06:00
relay.rst
romfs.rst
seq_file.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
sharedsubtree.rst Documentation/filesystems: sharedsubtree: add section headings 2023-05-16 12:50:05 -06:00
splice.rst
squashfs.rst docs: filesystems: document the squashfs specific mount options 2023-12-10 17:21:31 -08:00
sysfs.rst driver core: bus: mark the struct bus_type for sysfs callbacks as constant 2023-03-23 13:20:40 +01:00
sysv-fs.rst
tmpfs.rst tmpfs,xattr: enable limited user extended attributes 2023-08-10 12:06:04 +02:00
ubifs-authentication.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
ubifs.rst Documentation: ubifs: Fix compression idiom 2022-10-10 13:01:10 -06:00
udf.rst udf: Replace HTTP links with HTTPS ones 2020-07-14 14:37:39 +02:00
vfat.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00
vfs.rst Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
virtiofs.rst virtiofs: Add mount option and atime behavior to the doc 2020-04-20 17:01:34 +02:00
zonefs.rst Documentation: Fix typos 2023-08-18 11:29:03 -06:00