Kent Overstreet e0cb5722e1 bcachefs: Fix snapshot_create_lock lock ordering ... ====================================================== WARNING: possible circular locking dependency detected 6.10.0-rc2-ktest-00018-gebd1d148b278 #144 Not tainted ------------------------------------------------------ fio/1345 is trying to acquire lock: ffff88813e200ab8 (&c->snapshot_create_lock){++++}-{3:3}, at: bch2_truncate+0x76/0xf0 but task is already holding lock: ffff888105a1fa38 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: do_truncate+0x7b/0xc0 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}: down_write+0x3d/0xd0 bch2_write_iter+0x1c0/0x10f0 vfs_write+0x24a/0x560 __x64_sys_pwrite64+0x77/0xb0 x64_sys_call+0x17e5/0x1ab0 do_syscall_64+0x68/0x130 entry_SYSCALL_64_after_hwframe+0x4b/0x53 -> #1 (sb_writers#10){.+.+}-{0:0}: mnt_want_write+0x4a/0x1d0 filename_create+0x69/0x1a0 user_path_create+0x38/0x50 bch2_fs_file_ioctl+0x315/0xbf0 __x64_sys_ioctl+0x297/0xaf0 x64_sys_call+0x10cb/0x1ab0 do_syscall_64+0x68/0x130 entry_SYSCALL_64_after_hwframe+0x4b/0x53 -> #0 (&c->snapshot_create_lock){++++}-{3:3}: __lock_acquire+0x1445/0x25b0 lock_acquire+0xbd/0x2b0 down_read+0x40/0x180 bch2_truncate+0x76/0xf0 bchfs_truncate+0x240/0x3f0 bch2_setattr+0x7b/0xb0 notify_change+0x322/0x4b0 do_truncate+0x8b/0xc0 do_ftruncate+0x110/0x270 __x64_sys_ftruncate+0x43/0x80 x64_sys_call+0x1373/0x1ab0 do_syscall_64+0x68/0x130 entry_SYSCALL_64_after_hwframe+0x4b/0x53 other info that might help us debug this: Chain exists of: &c->snapshot_create_lock --> sb_writers#10 --> &sb->s_type->i_mutex_key#13 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sb->s_type->i_mutex_key#13); lock(sb_writers#10); lock(&sb->s_type->i_mutex_key#13); rlock(&c->snapshot_create_lock); *** DEADLOCK *** Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>		2024-06-10 13:17:16 -04:00
..
9p	Two fixes headed to stable trees:	2024-05-29 09:25:15 -07:00
adfs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
affs	affs: remove SLAB_MEM_SPREAD flag usage	2024-02-26 11:36:28 +01:00
afs	netfs, 9p: Fix race between umount and async request completion	2024-05-27 13:12:13 +02:00
autofs	dcache stuff for this cycle	2024-01-11 20:11:35 -08:00
bcachefs	bcachefs: Fix snapshot_create_lock lock ordering	2024-06-10 13:17:16 -04:00
befs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
bfs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
btrfs	for-6.10-rc2-tag	2024-06-07 15:13:12 -07:00
cachefiles	Assorted commits that had missed the last merge window...	2024-05-21 13:11:44 -07:00
ceph	We have a series from Xiubo that adds support for additional access	2024-05-25 14:23:58 -07:00
coda	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
configfs
cramfs	use ->bd_mapping instead of ->bd_inode->i_mapping	2024-05-03 02:36:51 -04:00
crypto	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
debugfs	vfs: Convert debugfs to use the new mount API	2024-03-26 09:04:54 +01:00
devpts	fs: Remove the now superfluous sentinel elements from ctl_table array	2023-12-28 04:57:57 -08:00
dlm	dlm: return -ENOMEM if ls_recover_buf fails	2024-04-23 16:08:55 -05:00
ecryptfs	hardening updates for 6.10-rc1	2024-05-13 14:14:05 -07:00
efivarfs	efi: Clear up misconceptions about a maximum variable name size	2024-04-13 10:33:02 +02:00
efs	efs: remove SLAB_MEM_SPREAD flag usage	2024-02-27 11:21:33 +01:00
erofs	Changes since last update:	2024-05-24 09:31:50 -07:00
exfat	exfat: zero the reserved fields of file and stream extension dentries	2024-04-25 21:59:59 +09:00
exportfs	fs: Create a generic is_dot_dotdot() utility	2024-01-23 10:58:56 -05:00
ext2	ext2: Remove LEGACY_DIRECT_IO dependency	2024-05-03 11:50:28 +02:00
ext4	bd_inode series	2024-05-21 09:51:42 -07:00
f2fs	f2fs update for 6.10-rc1	2024-05-20 13:23:43 -07:00
fat	fs: add kernel-doc comments to fat_parse_long()	2024-04-25 21:07:02 -07:00
freevxfs	freevxfs: Convert freevxfs to the new mount API.	2024-03-26 09:04:53 +01:00
fuse	virtio: features, fixes, cleanups	2024-05-23 12:04:36 -07:00
gfs2	bd_inode series	2024-05-21 09:51:42 -07:00
hfs	hfs: really remove hfs_writepage	2023-12-29 11:58:34 -08:00
hfsplus	hfsplus: refactor copy_name to not use strncpy	2024-04-24 16:55:28 -07:00
hostfs	hostfs: use d_splice_alias() calling conventions to simplify failure exits	2023-12-21 12:51:00 -05:00
hpfs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
hugetlbfs	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
iomap	iomap: fault in smaller chunks for non-large folio mappings	2024-05-24 13:34:07 +02:00
isofs	isofs: Use *-y instead of *-objs in Makefile	2024-05-09 18:09:57 +02:00
jbd2	bd_inode series	2024-05-21 09:51:42 -07:00
jffs2	This pull request contains the following changes for JFFS2:	2024-05-25 13:23:42 -07:00
jfs	fs,block: yield devices early	2024-03-27 13:17:15 +01:00
kernfs	kernfs: mount: Remove unnecessary ‘NULL’ values from knparent	2024-05-04 19:02:39 +02:00
lockd	lockd: host: Remove unnecessary statements＇host = NULL;＇	2024-05-06 09:07:20 -04:00
minix	minix: convert minix to use the new mount api	2024-03-26 09:04:55 +01:00
netfs	vfs-6.10-rc2.fixes	2024-05-27 08:09:12 -07:00
nfs	NFS client updates for Linux 6.10	2024-05-23 13:51:09 -07:00
nfs_common
nfsd	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
nilfs2	nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors	2024-06-05 19:19:27 -07:00
nls
notify	Revert "fanotify: remove unneeded sub-zero check for unsigned value"	2024-05-20 12:43:58 -07:00
ntfs3	driver ntfs3 for linux 6.10	2024-05-25 14:19:01 -07:00
ocfs2	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
omfs
openpromfs	openpromfs: finish conversion to the new mount API	2024-03-26 09:04:54 +01:00
orangefs	orangefs: fix out-of-bounds fsid access	2024-05-14 17:44:14 -07:00
overlayfs	overlayfs update for 6.10	2024-05-22 09:23:18 -07:00
proc	mm/ksm: fix ksm_zero_pages accounting	2024-06-05 19:19:26 -07:00
pstore	pstore/zone: Don't clear memory twice	2024-03-09 12:33:22 -08:00
qnx4	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
qnx6	qnx6: convert qnx6 to use the new mount api	2024-03-26 09:04:53 +01:00
quota	quota: fix to propagate error of mark_dquot_dirty() to caller	2024-04-12 14:52:29 +02:00
ramfs	mm: switch mm->get_unmapped_area() to a flag	2024-04-25 20:56:25 -07:00
reiserfs	getting rid of bogus set_blocksize() uses, switching it	2024-05-21 08:34:51 -07:00
romfs	fs,block: yield devices early	2024-03-27 13:17:15 +01:00
smb	cifs: Don't advance the I/O iterator before terminating subrequest	2024-06-07 01:05:26 -05:00
squashfs	Mainly singleton patches, documented in their respective changelogs.	2024-05-19 14:02:03 -07:00
sysfs	Merge 6.9-rc5 into driver-core-next	2024-04-23 13:27:43 +02:00
sysv	sysv: remove SLAB_MEM_SPREAD flag usage	2024-02-27 11:21:31 +01:00
tracefs	eventfs: Do not use attributes for events directory	2024-05-23 09:31:50 -04:00
ubifs	This pull request contains updates for UBI and UBIFS:	2024-03-21 15:09:29 -07:00
udf	udf: Use a folio in udf_write_end()	2024-04-23 15:37:02 +02:00
ufs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
unicode	kbuild: use $(src) instead of $(srctree)/$(src) for source directory	2024-05-10 04:34:52 +09:00
vboxsf	vboxsf: explicitly deny setlease attempts	2024-04-03 16:06:39 +02:00
verity	fsverity: use register_sysctl_init() to avoid kmemleak warning	2024-05-03 08:30:58 -07:00
xfs	xfs: Add cond_resched to block unmap range and reflink remap path	2024-05-27 20:50:35 +05:30
zonefs	zonefs: Use str_plural() to fix Coccinelle warning	2024-04-10 07:23:47 +09:00
aio.c	Assorted commits that had missed the last merge window...	2024-05-21 13:11:44 -07:00
anon_inodes.c	fs: Create anon_inode_getfile_fmode()	2024-04-26 10:33:05 +02:00
attr.c	lsm/stable-6.9 PR 20240312	2024-03-12 20:03:34 -07:00
backing-file.c	ovl: implement tmpfile	2024-05-02 20:35:57 +02:00
bad_inode.c
binfmt_elf_fdpic.c	binfmt_elf_fdpic: fix /proc/<pid>/auxv	2024-04-24 15:55:28 -07:00
binfmt_elf_test.c
binfmt_elf.c	Mainly singleton patches, documented in their respective changelogs.	2024-05-19 14:02:03 -07:00
binfmt_flat.c
binfmt_misc.c	execve updates for v6.7-rc1	2023-10-30 19:28:19 -10:00
binfmt_script.c
buffer.c	bd_inode series	2024-05-21 09:51:42 -07:00
char_dev.c	As usual, lots of singleton and doubleton patches all over the tree and	2023-11-02 20:53:31 -10:00
compat_binfmt_elf.c
coredump.c	virtio: features, fixes, cleanups	2024-05-23 12:04:36 -07:00
d_path.c
dax.c	dax: use huge_zero_folio	2024-04-25 20:56:20 -07:00
dcache.c	Revert "vfs: Delete the associated dentry when deleting a file"	2024-05-29 09:39:34 -07:00
direct-io.c	fs/direct-io: remove redundant assignment to variable retval	2024-04-11 10:21:24 +02:00
drop_caches.c
eventfd.c	eventfd: strictly check the count parameter of eventfd_write to avoid inputting illegal strings	2024-02-08 10:12:26 +01:00
eventpoll.c	epoll: be better about file lifetimes	2024-05-05 14:00:48 -07:00
exec.c	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
fcntl.c	fcntl: add F_DUPFD_QUERY fcntl()	2024-05-10 08:26:31 +02:00
fhandle.c	fs: Annotate struct file_handle with __counted_by() and use struct_size()	2024-04-05 15:53:47 +02:00
file_table.c	lsm/stable-6.9 PR 20240312	2024-03-12 20:03:34 -07:00
file.c	get_file_rcu(): no need to check for NULL separately	2024-04-15 16:03:24 -04:00
filesystems.c
fs_context.c
fs_parser.c	__fs_parse: Correct a documentation comment	2024-02-02 13:11:50 +01:00
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c	fs/writeback: remove unnecessary return in writeback_inodes_sb	2024-04-05 15:53:45 +02:00
fsopen.c
init.c
inode.c	bcachefs updates for 6.9	2024-03-15 09:00:09 -07:00
internal.h	ovl: implement tmpfile	2024-05-02 20:35:57 +02:00
ioctl.c	fs/ioctl: Add a comment to keep the logic in sync with LSM policies	2024-05-13 06:58:35 +02:00
Kconfig	- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames	2024-03-14 17:43:30 -07:00
Kconfig.binfmt
kernel_read_file.c
libfs.c	shmem: Fix shmem_rename2()	2024-04-17 13:49:44 +02:00
locks.c	filelock: fix deadlock detection in POSIX locking	2024-02-20 09:53:33 +01:00
Makefile	vfs-6.9.pidfd	2024-03-11 10:21:06 -07:00
mbcache.c	vfs: remove SLAB_MEM_SPREAD flag usage	2024-02-27 11:21:31 +01:00
mnt_idmapping.c	fs/mnt_idmapping.c: Return -EINVAL when no map is written	2024-02-08 10:12:37 +01:00
mount.h	mounts: keep list of mounts in an rbtree	2023-11-18 14:56:16 +01:00
mpage.c	block, fs: Restore the per-bio/request data lifetime fields	2024-02-06 14:31:05 +01:00
namei.c	overlayfs update for 6.10	2024-05-22 09:23:18 -07:00
namespace.c	fs: relax mount_setattr() permission checks	2024-02-07 21:16:29 +01:00
nsfs.c	pidfs: remove config option	2024-03-13 12:53:53 -07:00
open.c	do_dentry_open(): kill inode argument	2024-04-15 16:03:25 -04:00
pidfs.c	fs/pidfs: make 'lsof' happy with our inode changes	2024-05-21 08:08:00 -07:00
pipe.c	fs/pipe: Convert to lockdep_cmp_fn	2024-02-02 13:11:49 +01:00
pnode.c	mounts: keep list of mounts in an rbtree	2023-11-18 14:56:16 +01:00
pnode.h
posix_acl.c	lsm/stable-6.9 PR 20240312	2024-03-12 20:03:34 -07:00
proc_namespace.c	namespace: extract show_path() helper	2023-11-18 14:56:16 +01:00
read_write.c	Assorted commits that had missed the last merge window...	2024-05-21 13:11:44 -07:00
readdir.c	fsnotify: optionally pass access range in file permission hooks	2023-12-12 16:20:02 +01:00
remap_range.c	vfs: export remap and write check helpers	2024-04-15 14:54:13 -07:00
select.c	fs/select: rework stack allocation hack for clang	2024-02-20 09:23:52 +01:00
seq_file.c	seq_file: Simplify __seq_puts()	2024-05-02 16:28:20 +02:00
signalfd.c	signalfd: drop an obsolete comment	2024-05-24 13:34:07 +02:00
splice.c	remove call_{read,write}_iter() functions	2024-04-15 16:03:25 -04:00
stack.c
stat.c	statx: stx_subvol	2024-03-26 09:01:18 +01:00
statfs.c
super.c	\n	2024-05-20 12:31:43 -07:00
sync.c
sysctls.c	fs: Remove the now superfluous sentinel elements from ctl_table array	2023-12-28 04:57:57 -08:00
timerfd.c	timerfd: convert to ->read_iter()	2024-04-10 16:23:02 -06:00
userfaultfd.c	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
utimes.c
xattr.c	evm: Move to LSM infrastructure	2024-02-15 23:43:47 -05:00