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7caadd02df
android_kernel_xiaomi_sm7250/fs
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Gao Xiang 7caadd02df erofs: support parsing big pcluster compact indexes 
Different from non-compact indexes, several lclusters are packed
as the compact form at once and an unique base blkaddr is stored for
each pack, so each lcluster index would take less space on avarage
(e.g. 2 bytes for COMPACT_2B.) btw, that is also why BIG_PCLUSTER
switch should be consistent for compact head0/1.

Prior to big pcluster, the size of all pclusters was 1 lcluster.
Therefore, when a new HEAD lcluster was scanned, blkaddr would be
bumped by 1 lcluster. However, that way doesn't work anymore for
big pcluster since we actually don't know the compressed size of
pclusters in advance (before reading CBLKCNT lcluster).

So, instead, let blkaddr of each pack be the first pcluster blkaddr
with a valid CBLKCNT, in detail,

 1) if CBLKCNT starts at the pack, this first valid pcluster is
    itself, e.g.
  _____________________________________________________________
 |_CBLKCNT0_|_NONHEAD_| .. |_HEAD_|_CBLKCNT1_| ... |_HEAD_| ...
 ^ = blkaddr base          ^ += CBLKCNT0           ^ += CBLKCNT1

 2) if CBLKCNT doesn't start at the pack, the first valid pcluster
    is the next pcluster, e.g.
  _________________________________________________________
 | NONHEAD_| .. |_HEAD_|_CBLKCNT0_| ... |_HEAD_|_HEAD_| ...
                ^ = blkaddr base        ^ += CBLKCNT0
                                               ^ += 1

When a CBLKCNT is found, blkaddr will be increased by CBLKCNT
lclusters, or a new HEAD is found immediately, bump blkaddr by 1
instead (see the picture above.)

Also noted if CBLKCNT is the end of the pack, instead of storing
delta1 (distance of the next HEAD lcluster) as normal NONHEADs,
it still uses the compressed block count (delta0) since delta1
can be calculated indirectly but the block count can't.

Adjust decoding logic to fit big pcluster compact indexes as well.

Link: https://lore.kernel.org/r/20210407043927.10623-9-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
Change-Id: Ia9dc0c8bf03b630edc4dfcedf61ef0632e1fcb05
2022-11-12 11:24:49 +00:00
..
9p 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2022-06-25 11:48:57 +02:00
adfs fs/adfs: super: fix use-after-free bug 2019-08-06 19:06:49 +02:00
affs fs/affs: release old buffer head on error path 2021-03-04 09:39:55 +01:00
afs Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-07-09 10:34:17 +05:30
autofs autofs: fix a leak in autofs_expire_indirect() 2019-12-13 08:51:01 +01:00
befs
bfs
btrfs btrfs: fix processing of delayed tree block refs during backref walking 2022-11-03 23:52:25 +09:00
cachefiles cachefiles: Handle readpage error correctly 2020-11-05 11:08:54 +01:00
ceph ceph: don't truncate file in atomic_open 2022-10-26 13:19:18 +02:00
cifs cifs: don't send down the destination address to sendmsg for a SOCK_STREAM 2022-09-28 11:02:52 +02:00
coda coda: add error handling for fget 2019-08-06 19:06:51 +02:00
configfs configfs: fix a race in configfs_{,un}register_subsystem() 2022-03-02 11:38:13 +01:00
cramfs
crypto Merge tag '5.11-rc1-4.19' of https://kernel.googlesource.com/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable into HEAD 2022-07-03 13:50:05 +00:00
debugfs mm: kmemleak: Don't require global debug options or debugfs 2022-11-12 11:24:00 +00:00
devpts
dlm fs: dlm: handle -EBUSY first in lock arg validation 2022-10-26 13:19:21 +02:00
ecryptfs Revert "ecryptfs: replace BUG_ON with error handling code" 2021-05-26 11:48:34 +02:00
efivarfs efivarfs: revert "fix memory leak in efivarfs_create()" 2020-12-02 08:48:12 +01:00
efs
erofs erofs: support parsing big pcluster compact indexes 2022-11-12 11:24:49 +00:00
exfat Merge remote-tracking branch 'namjaejeon/linux-exfat-oot/master' into android12-base 2022-10-19 10:45:47 +05:30
exofs Merge android-4.19-q.88 (47d86d5) into msm-4.19 2020-01-28 03:20:43 -08:00
exportfs exportfs: fix 'passing zero to ERR_PTR()' warning 2020-01-27 14:50:02 +01:00
ext2 ext2: Add more validity checks for inode counts 2022-08-25 11:14:58 +02:00
ext4 fs: ext4: fsync: optimize double-fsync() a bunch 2022-11-12 11:24:44 +00:00
f2fs f2fs: Force strict fsync mode 2022-11-12 11:24:01 +00:00
fat fat: add ratelimit to fat*_ent_bread() 2022-06-14 16:59:18 +02:00
freevxfs
fscache fscache: Fix cookie key hashing 2021-09-22 11:48:02 +02:00
fuse BACKPORT: fuse: fix warning in tree_insert() and clean up writepage insertion 2022-11-12 11:22:15 +00:00
gfs2 Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-05-19 14:51:23 +05:30
hfs hfs: add lock nesting notation to hfs_find_init 2021-07-31 08:22:38 +02:00
hfsplus hfsplus: prevent corruption in shrinking truncate 2021-05-22 10:59:45 +02:00
hostfs
hpfs
hugetlbfs mm: remove unnecessary wrapper function do_mmap_pgoff() 2022-11-12 11:21:24 +00:00
incfs ANDROID: incremental-fs: limit mount stack depth 2022-04-08 12:58:18 -07:00
isofs isofs: Fix out of bound access for corrupted isofs image 2021-11-12 14:40:50 +01:00
jbd2 Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-09-22 14:02:10 +05:30
jffs2 This is the 4.19.247 stable release 2022-06-14 17:16:36 +02:00
jfs fs: jfs: fix possible NULL pointer dereference in dbFree() 2022-06-14 16:59:17 +02:00
kernfs kernfs: use kmem_cache pool for struct kernfs_open_node/file 2022-11-12 11:24:39 +00:00
lockd lockd: don't use interval-based rebinding over TCP 2020-12-30 11:25:59 +01:00
minix minix: fix bug when opening a file with O_DIRECT 2022-04-15 14:15:03 +02:00
nfs Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-09-22 14:02:10 +05:30
nfs_common nfs_common: need lock during iterate through the list 2020-12-30 11:26:02 +01:00
nfsd NFSD: Return nfserr_serverfault if splice_ok but buf->pages have data 2022-10-26 13:19:36 +02:00
nilfs2 nilfs2: fix use-after-free bug of struct nilfs_root 2022-10-26 13:19:22 +02:00
nls
notify Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-06-30 15:31:02 +05:30
ntfs ntfs: fix BUG_ON in ntfs_lookup_inode_by_name() 2022-10-05 10:36:44 +02:00
ocfs2 mass revert: clean 2022-11-12 11:18:57 +00:00
omfs
openpromfs
orangefs orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc() 2022-01-27 09:04:13 +01:00
overlayfs FROMLIST: fs: Generic function to convert iocb to rw flags 2022-11-12 11:22:11 +00:00
proc mm: Perform PID map reads on the little CPU cluster 2022-11-12 11:24:17 +00:00
pstore fs: pstore: import vangogh-r-oss support to get last_kmsg 2022-11-12 11:19:16 +00:00
qnx4 qnx4: work around gcc false positive warning bug 2021-10-06 15:31:20 +02:00
qnx6
quota quota_tree: Avoid dynamic memory allocations 2022-11-12 11:24:42 +00:00
ramfs ramfs: fix nommu mmap with gaps in the page cache 2020-10-30 10:38:21 +01:00
reiserfs reiserfs: check directory items on read from disk 2021-08-12 13:19:44 +02:00
romfs romfs: fix uninitialized memory leak in romfs_dev_read() 2020-08-26 10:30:59 +02:00
sdcardfs sdcardfs: use kmem_cache pool for struct sdcardfs_file_info 2022-11-12 11:24:39 +00:00
squashfs squashfs: fix divide error in calculate_skip() 2021-05-22 10:59:45 +02:00
sysfs This is the 4.19.236 stable release 2022-03-23 12:26:14 +01:00
sysv
tracefs Merge 4.19.259 into android-4.19-stable 2022-09-21 11:46:01 +02:00
ubifs Merge tag '5.11-rc1-4.19' of https://kernel.googlesource.com/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable into HEAD 2022-07-03 13:50:05 +00:00
udf udf: Fix NULL ptr deref when converting from inline format 2022-02-08 18:23:03 +01:00
ufs fs/ufs: avoid potential u32 multiplication overflow 2020-08-21 11:05:38 +02:00
unicode unicode: Add utf8_casefold_hash 2020-09-11 11:22:30 -07:00
verity Merge tag '5.12-rc1-4.19' of https://kernel.googlesource.com/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable into HEAD 2022-07-03 14:22:19 +00:00
xfs mass revert: clean 2022-11-12 11:18:57 +00:00
aio.c mm: remove unnecessary wrapper function do_mmap_pgoff() 2022-11-12 11:21:24 +00:00
anon_inodes.c
attr.c Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-09-07 22:01:02 +05:30
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c
binfmt_elf.c elf: don't use MAP_FIXED_NOREPLACE for elf interpreter mappings 2021-10-06 15:31:24 +02:00
binfmt_em86.c
binfmt_flat.c binfmt_flat: do not stop relocating GOT entries prematurely on riscv 2022-06-14 16:59:13 +02:00
binfmt_misc.c binfmt_misc: fix possible deadlock in bm_register_write 2021-03-17 16:43:51 +01:00
binfmt_script.c exec: load_script: Do not exec truncated interpreter path 2019-11-06 13:05:37 +01:00
block_dev.c This is the 4.19.191 stable release 2021-05-22 11:54:36 +02:00
buffer.c Merge android-4.19-stable.157 (8ee67bc) into msm-4.19 2020-12-18 18:35:06 +05:30
char_dev.c chardev: Avoid potential use-after-free in 'chrdev_open()' 2020-01-24 14:28:27 +05:30
compat_binfmt_elf.c
compat_ioctl.c fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP 2020-01-09 10:19:07 +01:00
compat.c
coredump.c coredump: fix crash when umh is disabled 2020-09-08 01:59:16 -07:00
d_path.c mm: Micro-optimize PID map reads for arm64 while retaining output format 2022-11-12 11:24:17 +00:00
dax.c dax: fix cache flush on PMD-mapped pages 2022-06-14 16:59:24 +02:00
dcache.c fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory 2020-11-05 11:08:35 +01:00
dcookies.c
direct-io.c Merge 4.19.187 into android-4.19-stable 2021-04-16 07:42:26 +02:00
drop_caches.c fs: avoid softlockups in s_inodes iterators 2020-01-12 12:17:20 +01:00
eventfd.c eventfd: track eventfd_signal() recursion depth 2020-02-11 04:34:08 -08:00
eventpoll.c This is the 4.19.150 stable release 2020-10-07 08:45:35 +02:00
exec.c exec: use bprm from the stack space 2022-11-12 11:24:41 +00:00
fcntl.c fcntl: fix potential deadlock for &fasync_struct.fa_lock 2021-09-22 11:47:50 +02:00
fhandle.c
file_table.c Merge tag '5.10-rc1-4.19' of https://kernel.googlesource.com/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable into HEAD 2022-07-03 13:23:06 +00:00
file.c disp: msm: sde: Force SDE fd to start from 1 2022-11-12 11:19:44 +00:00
filesystems.c fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once() 2020-04-17 10:48:51 +02:00
fs_pin.c
fs_struct.c Restore sdcardfs feature 2020-08-21 15:15:18 +05:30
fs-writeback.c writeback: hardcode dirty_expire_centisecs=3000 (30s) 2022-11-12 11:24:38 +00:00
inode.c Merge branch 'android-4.19-stable' of https://github.com/aosp-mirror/kernel_common into skizo-x 2022-11-12 11:18:12 +00:00
internal.h Restore sdcardfs feature 2020-08-21 15:15:18 +05:30
ioctl.c
iomap.c This is the 4.19.191 stable release 2021-05-22 11:54:36 +02:00
Kconfig erofs: move from drivers/staging/ to fs/ 2022-11-12 11:24:45 +00:00
Kconfig.binfmt
libfs.c Merge tag '5.12-rc1-4.19' of https://kernel.googlesource.com/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable into HEAD 2022-07-03 14:22:19 +00:00
locks.c UPSTREAM: locking/percpu-rwsem: Remove preempt_disable variants 2022-11-12 11:23:27 +00:00
Makefile erofs: move from drivers/staging/ to fs/ 2022-11-12 11:24:45 +00:00
mbcache.c mbcache: Speed up cache entry creation 2022-11-12 11:24:03 +00:00
mount.h
mpage.c f2fs: fix build error on android tracepoints 2019-08-17 00:18:14 +00:00
namei.c Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-09-07 22:01:02 +05:30
namespace.c Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-05-19 14:51:23 +05:30
no-block.c
nsfs.c dcache: sort the freeing-without-RCU-delay mess for good. 2019-05-25 18:23:26 +02:00
open.c Merge tag '5.10-rc1-4.19' of https://kernel.googlesource.com/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable into HEAD 2022-07-03 13:23:06 +00:00
OWNERS ANDROID: Add OWNERS files referring to the respective android-mainline OWNERS 2021-04-03 14:09:44 +00:00
pipe.c pipe: increase minimum default pipe size to 2 pages 2021-08-12 13:19:43 +02:00
pnode.c This is the 4.19.120 stable release 2020-05-03 08:48:02 +02:00
pnode.h
posix_acl.c
proc_namespace.c
read_write.c Merge android-4.19-stable.136 (204dd19) into msm-4.19 2020-10-14 20:04:29 +05:30
readdir.c readdir: make sure to verify directory entry for legacy interfaces too 2021-04-28 13:16:50 +02:00
select.c Revert "Revert "select: use freezable blocking call"" 2022-11-12 11:19:33 +00:00
seq_file.c seq_file: disallow extremely large seq buffer allocations 2021-12-07 12:47:09 +05:30
signalfd.c signalfd: use wake_up_pollfree() 2022-02-28 19:00:41 +05:30
splice.c Revert "fs: check FMODE_LSEEK to control internal pipe splicing" 2022-10-26 13:19:21 +02:00
stack.c
stat.c stat: fix inconsistency between struct stat and struct compat_stat 2022-04-27 13:39:44 +02:00
statfs.c vfs: Fix EOVERFLOW testing in put_compat_statfs64 2019-10-11 18:21:39 +02:00
super.c Merge tag 'ASB-2022-03-05_4.19-stable' of https://github.com/aosp-mirror/kernel_common into android12-base 2022-03-08 06:44:12 +05:30
sync.c Merge tag '5.10-rc1-4.19' of https://kernel.googlesource.com/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable into HEAD 2022-07-03 13:23:06 +00:00
timerfd.c
userfaultfd.c Revert "mm: protect VMA modifications using VMA sequence count" 2022-11-12 11:20:39 +00:00
utimes.c Restore sdcardfs feature 2020-08-21 15:15:18 +05:30
xattr.c Merge android-4.19-stable.146 (443485d) into msm-4.19 2020-10-16 11:06:31 +05:30