linux/Documentation/filesystems
Jingbo Xu d3c4bdcc75 erofs: set block size to the on-disk block size
Set the block size to that specified in on-disk superblock.

Also remove the hard constraint of PAGE_SIZE block size for the
uncompressed device backend.  This constraint is temporarily remained
for compressed device and fscache backend, as there is more work needed
to handle the condition where the block size is not equal to PAGE_SIZE.

It is worth noting that the on-disk block size is read prior to
erofs_superblock_csum_verify(), as the read block size is needed in the
latter.

Besides, later we are going to make erofs refer to tar data blobs (which
is 512-byte aligned) for OCI containers, where the block size is 512
bytes.  In this case, the 512-byte block size may not be adequate for a
directory to contain enough dirents.  To fix this, we are also going to
introduce directory block size independent on the block size.

Due to we have already supported block size smaller than PAGE_SIZE now,
disable all these images with such separated directory block size until
we supported this feature later.

Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20230313135309.75269-3-jefflexu@linux.alibaba.com
[ Gao Xiang: update documentation. ]
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2023-04-17 01:15:45 +08:00
..
caching Remove duplicate words inside documentation 2022-09-27 13:21:43 -06:00
cifs ksmbd: update documentation 2022-10-05 01:15:38 -05:00
ext4 docs: ext4: modify the group desc size to 64 2023-03-07 20:24:05 -05:00
nfs Documentation: Fix sysfs path for the NFSv4 client identifier 2023-02-15 11:01:03 -05:00
spufs Documentation: spufs: correct a duplicate word typo 2022-09-27 13:21:44 -06:00
9p.rst
adfs.rst
affs.rst
afs.rst AFS: Documentation: fix a few typos in afs.rst 2021-01-21 14:06:00 -07:00
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.rst docs: filesystems: Fix grammatical error "with" to "which" 2021-11-15 02:54:37 -07:00
automount-support.rst
befs.rst
bfs.rst
btrfs.rst Documentation: update btrfs list of features and link to readthedocs.io 2022-06-21 14:47:19 +02:00
ceph.rst ceph: remove Sage's git tree from documentation 2022-10-04 19:18:08 +02:00
coda.rst
configfs.rst configfs: remove mentions of committable items 2022-12-02 11:11:27 +01:00
cramfs.rst
dax.rst Documentation/filesystem/dax: update DAX description on erofs 2022-03-16 09:38:38 +08:00
debugfs.rst debugfs: small Documentation cleaning 2022-11-09 13:58:55 -07:00
devpts.rst
directory-locking.rst
dlmfs.rst
dnotify.rst
ecryptfs.rst
efivarfs.rst
erofs.rst erofs: set block size to the on-disk block size 2023-04-17 01:15:45 +08:00
ext2.rst ext2: remove nobh support 2022-08-02 12:34:04 -04:00
ext3.rst
f2fs.rst docs: f2fs: fix html doc error 2023-01-06 15:13:16 -08:00
fiemap.rst
files.rst
fscrypt.rst fscrypt: support decrypting data from large folios 2023-01-28 15:10:12 -08:00
fsverity.rst fsverity: support verifying data from large folios 2023-01-27 14:46:31 -08:00
fuse-io.rst
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-uevents.rst
gfs2.rst
hfs.rst
hfsplus.rst
hpfs.rst
idmappings.rst Documentation: filesystems: correct possessive "its" 2022-09-27 13:21:44 -06:00
index.rst Documentation: remove reference to now removed mandatory-locking doc 2021-10-05 06:02:53 -04:00
inotify.rst
isofs.rst
journalling.rst
locking.rst fs: port xattr to mnt_idmap 2023-01-19 09:24:28 +01:00
locks.rst docs: fs: locks.rst: update comment about mandatory file locking 2021-10-19 06:48:21 -04:00
mount_api.rst A large number of cleanups and bug fixes, with many of the bug fixes 2022-12-12 19:56:37 -08:00
netfs_library.rst netfs: do not unlock and put the folio twice 2022-07-14 10:10:12 +02:00
nilfs2.rst
ntfs3.rst fs/ntfs3: Document system.ntfs_attrib_be extended attribute 2022-11-12 20:59:45 +03:00
ntfs.rst
ocfs2-online-filecheck.rst
ocfs2.rst
omfs.rst
orangefs.rst
overlayfs.rst Revert "ovl: turn of SB_POSIXACL with idmapped layers temporarily" 2022-07-15 22:10:51 +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
porting.rst fs: rename current get acl method 2022-10-20 10:13:27 +02:00
proc.rst docs: proc.rst: add softnet_stat to /proc/net table 2023-01-02 16:28:24 -07:00
qnx6.rst Documentation: filesystems: correct possessive "its" 2022-09-27 13:21:44 -06:00
quota.rst
ramfs-rootfs-initramfs.rst Documentation: Fix intiramfs script name 2021-07-18 23:48:14 +09:00
relay.rst
romfs.rst
seq_file.rst seq_file: document how per-entry resources are managed. 2021-02-26 09:41:05 -08:00
sharedsubtree.rst
splice.rst
squashfs.rst
sysfs.rst sysfs: update Documentation 2022-11-09 13:57:59 -07:00
sysv-fs.rst
tmpfs.rst
ubifs-authentication.rst
ubifs.rst Documentation: ubifs: Fix compression idiom 2022-10-10 13:01:10 -06:00
udf.rst
vfat.rst docs: filesystems: Fix a mundane typo 2021-03-25 11:51:23 -06:00
vfs.rst docs: Correct missing "d_" prefix for dentry_operations member d_weak_revalidate 2023-03-07 10:21:11 -07:00
virtiofs.rst
xfs-delayed-logging-design.rst Documentation: filesystems: correct possessive "its" 2022-09-27 13:21:44 -06:00
xfs-self-describing-metadata.rst
zonefs.rst documentation: zonefs: Document sysfs attributes 2022-04-26 14:53:06 +09:00