android_kernel_motorola_sm6375/fs
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Zhihao Cheng e86d1b2bb7 ubifs: Reserve one leb for each journal head while doing budget
[ Upstream commit e874dcde1cbf82c786c0e7f2899811c02630cc52 ]

UBIFS calculates available space by c->main_bytes - c->lst.total_used
(which means non-index lebs' free and dirty space is accounted into
total available), then index lebs and four lebs (one for gc_lnum, one
for deletions, two for journal heads) are deducted.
In following situation, ubifs may get -ENOSPC from make_reservation():
 LEB 84: DATAHD   free 122880 used 1920  dirty 2176  dark 6144
 LEB 110:DELETION free 126976 used 0     dirty 0     dark 6144 (empty)
 LEB 201:gc_lnum  free 126976 used 0     dirty 0     dark 6144
 LEB 272:GCHD     free 77824  used 47672 dirty 1480  dark 6144
 LEB 356:BASEHD   free 0      used 39776 dirty 87200 dark 6144
 OTHERS: index lebs, zero-available non-index lebs

UBIFS calculates the available bytes is 6888 (How to calculate it:
126976 * 5[remain main bytes] - 1920[used] - 47672[used] - 39776[used] -
126976 * 1[deletions] - 126976 * 1[gc_lnum] - 126976 * 2[journal heads]
- 6144 * 5[dark] = 6888) after doing budget, however UBIFS cannot use
BASEHD's dirty space(87200), because UBIFS cannot find next BASEHD to
reclaim current BASEHD. (c->bi.min_idx_lebs equals to c->lst.idx_lebs,
the empty leb won't be found by ubifs_find_free_space(), and dirty index
lebs won't be picked as gced lebs. All non-index lebs has dirty space
less then c->dead_wm, non-index lebs won't be picked as gced lebs
either. So new free lebs won't be produced.). See more details in Link.

To fix it, reserve one leb for each journal head while doing budget.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216562
Fixes: 1e51764a3c ("UBIFS: add new flash file system")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:44:09 +01:00
..
9p 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2022-06-22 14:11:02 +02:00
adfs
affs affs: initialize fsdata in affs_truncate() 2023-02-06 07:52:36 +01:00
afs afs: Fix fileserver probe RTT handling 2022-12-08 11:23:03 +01:00
autofs
befs
bfs
btrfs btrfs: send: limit number of clones and allocated memory size 2023-03-03 11:41:48 +01:00
cachefiles
ceph ceph: flush cap releases when the session is flushed 2023-02-22 12:50:33 +01:00
cifs cifs: Fix warning and UAF when destroy the MR list 2023-03-11 16:43:49 +01:00
coda coda: Avoid partial allocation of sig_inputArgs 2023-03-11 16:43:56 +01:00
configfs configfs: fix possible memory leak in configfs_create_dir() 2023-01-18 11:41:09 +01:00
cramfs
crypto
debugfs debugfs: fix error when writing negative value to atomic_t debugfs file 2023-01-18 11:40:56 +01:00
devpts
dlm fs: dlm: handle -EBUSY first in lock arg validation 2022-10-26 13:22:14 +02:00
ecryptfs
efivarfs
efs
erofs erofs: avoid consecutive detection for Highmem memory 2022-08-25 11:17:36 +02:00
exportfs
ext2 ext2: Add more validity checks for inode counts 2022-08-25 11:17:28 +02:00
ext4 ext4: refuse to create ea block when umounted 2023-03-11 16:44:03 +01:00
f2fs fs: f2fs: initialize fsdata in pagecache_write() 2023-03-11 16:44:08 +01:00
fat fat: add ratelimit to fat*_ent_bread() 2022-06-14 18:11:30 +02:00
freevxfs
fscache
fuse fuse: lock inode unconditionally in fuse_fallocate() 2022-12-08 11:23:01 +01:00
gfs2 gfs2: jdata writepage fix 2023-03-11 16:43:49 +01:00
hfs hfs: fix missing hfs_bnode_get() in __hfs_bnode_create 2023-03-11 16:43:59 +01:00
hfsplus fs: hfsplus: fix UAF issue in hfsplus_put_super 2023-03-11 16:43:59 +01:00
hostfs
hpfs
hugetlbfs hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param() 2023-01-18 11:41:38 +01:00
iomap iomap: iomap_write_failed fix 2022-06-14 18:11:36 +02:00
isofs
jbd2 jbd2: wake up journal waiters in FIFO order, not LIFO 2022-10-26 13:22:17 +02:00
jffs2 jffs2: fix memory leak in jffs2_do_fill_super 2022-06-14 18:11:55 +02:00
jfs fs/jfs: fix shift exponent db_agl2size negative 2023-03-11 16:44:07 +01:00
kernfs kernfs: fix use-after-free in __kernfs_remove 2022-11-03 23:56:54 +09:00
lockd
minix minix: fix bug when opening a file with O_DIRECT 2022-04-15 14:18:35 +02:00
nfs pNFS/filelayout: Fix coalescing test for single DS 2023-01-24 07:17:58 +01:00
nfs_common
nfsd nfsd: zero out pointers after putting nfsd_files on COPY setup error 2023-03-11 16:43:58 +01:00
nilfs2 nilfs2: fix underflow in second superblock position calculations 2023-02-22 12:50:41 +01:00
nls
notify fsnotify: fix wrong lockdep annotations 2022-06-14 18:11:34 +02:00
ntfs ntfs: check overflow when iterating ATTR_RECORDs 2022-11-25 17:42:22 +01:00
ocfs2 ocfs2: fix non-auto defrag path not working issue 2023-03-11 16:44:00 +01:00
omfs
openpromfs
orangefs orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init() 2023-01-18 11:41:39 +01:00
overlayfs ovl: Use ovl mounter's fsuid and fsgid in ovl_link() 2023-01-18 11:41:43 +01:00
proc mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps 2023-02-22 12:50:28 +01:00
pstore pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES 2023-01-18 11:41:40 +01:00
qnx4
qnx6
quota ext4: fix bug_on in __es_tree_search caused by bad quota inode 2023-01-18 11:42:02 +01:00
ramfs
reiserfs fs: reiserfs: remove useless new_opts in reiserfs_remount 2023-02-06 07:52:43 +01:00
romfs
squashfs revert "squashfs: harden sanity check in squashfs_read_xattr_id_table" 2023-02-22 12:50:39 +01:00
sysfs
sysv fs: sysv: Fix sysv_nblocks() returns wrong value 2023-01-18 11:40:58 +01:00
tracefs tracefs: Only clobber mode/uid/gid on remount if asked 2022-09-20 12:28:00 +02:00
ubifs ubifs: Reserve one leb for each journal head while doing budget 2023-03-11 16:44:09 +01:00
udf udf: Fix file corruption when appending just after end of preallocated extent 2023-03-11 16:44:01 +01:00
ufs
unicode
verity
xfs xfs: sync lazy sb accounting on quiesce of read-only mounts 2023-02-22 12:50:38 +01:00
aio.c aio: fix mremap after fork null-deref 2023-02-22 12:50:35 +01:00
anon_inodes.c
attr.c vfs: Check the truncate maximum size in inode_newsize_ok() 2022-08-25 11:17:21 +02:00
bad_inode.c
binfmt_aout.c binfmt: Move install_exec_creds after setup_new_exec to match binfmt_elf 2023-01-18 11:41:46 +01:00
binfmt_elf.c
binfmt_elf_fdpic.c binfmt: Fix error return code in load_elf_fdpic_binary() 2023-01-18 11:41:46 +01:00
binfmt_em86.c
binfmt_flat.c binfmt: Move install_exec_creds after setup_new_exec to match binfmt_elf 2023-01-18 11:41:46 +01:00
binfmt_misc.c binfmt_misc: fix shift-out-of-bounds in check_special_flags 2023-01-18 11:41:33 +01:00
binfmt_script.c
block_dev.c
buffer.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:42:22 +01:00
char_dev.c chardev: fix error handling in cdev_device_add() 2023-01-18 11:41:25 +01:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c compat_ioctl: remove /dev/random commands 2022-06-22 14:11:03 +02:00
coredump.c
d_path.c
dax.c dax: fix cache flush on PMD-mapped pages 2022-06-14 18:11:41 +02:00
dcache.c
dcookies.c
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c epoll: check for events when removing a timed out thread from the wait queue 2022-12-08 11:23:05 +01:00
exec.c exec: Force single empty string when argv is empty 2022-06-06 08:33:50 +02:00
fcntl.c
fhandle.c
file.c
file_table.c SUNRPC: Ensure we flush any closed sockets before xs_xprt_free() 2022-05-25 09:14:34 +02:00
filesystems.c
fs-writeback.c fs-writeback: writeback_sb_inodes:Recalculate 'wrote' according skipped pages 2022-06-14 18:11:44 +02:00
fs_context.c
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
inode.c fs: fix UAF/GPF bug in nilfs_mdt_destroy 2022-10-15 07:54:36 +02:00
internal.h
io_uring.c io_uring/af_unix: defer registered files gc to io_uring release 2022-10-26 13:22:59 +02:00
ioctl.c
Kconfig
Kconfig.binfmt
libfs.c libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value 2023-01-18 11:40:55 +01:00
locks.c
Makefile
mbcache.c mbcache: Avoid nesting of cache->c_list_lock under bit locks 2023-01-18 11:41:59 +01:00
mount.h
mpage.c
namei.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:42:22 +01:00
namespace.c
no-block.c
nsfs.c
open.c
pipe.c
pnode.c pnode: terminate at peers of source 2023-01-18 11:41:44 +01:00
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
select.c
seq_file.c
signalfd.c io_uring: disable polling pollfree files 2022-09-05 10:27:47 +02:00
splice.c Revert "fs: check FMODE_LSEEK to control internal pipe splicing" 2022-10-17 17:24:32 +02:00
stack.c
stat.c stat: fix inconsistency between struct stat and struct compat_stat 2022-04-27 13:50:48 +02:00
statfs.c
super.c
sync.c
timerfd.c
userfaultfd.c userfaultfd: open userfaultfds with O_RDONLY 2022-10-26 13:22:21 +02:00
utimes.c
xattr.c fs: don't audit the capability check in simple_xattr_list() 2023-01-18 11:40:53 +01:00