Jan Kara fd1464105c fs: Avoid grabbing sb->s_umount under bdev->bd_holder_lock ... The implementation of bdev holder operations such as fs_bdev_mark_dead() and fs_bdev_sync() grab sb->s_umount semaphore under bdev->bd_holder_lock. This is problematic because it leads to disk->open_mutex -> sb->s_umount lock ordering which is counterintuitive (usually we grab higher level (e.g. filesystem) locks first and lower level (e.g. block layer) locks later) and indeed makes lockdep complain about possible locking cycles whenever we open a block device while holding sb->s_umount semaphore. Implement a function bdev_super_lock_shared() which safely transitions from holding bdev->bd_holder_lock to holding sb->s_umount on alive superblock without introducing the problematic lock dependency. We use this function fs_bdev_sync() and fs_bdev_mark_dead(). Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20231018152924.3858-1-jack@suse.cz Link: https://lore.kernel.org/r/20231017184823.1383356-1-hch@lst.de Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner <brauner@kernel.org>		2023-10-28 13:29:22 +02:00
..
9p	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
adfs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
affs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
afs	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
autofs	v6.6-vfs.autofs	2023-08-28 11:39:14 -07:00
befs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
bfs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
btrfs	btrfs: Convert to bdev_open_by_path()	2023-10-28 13:29:20 +02:00
cachefiles	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
ceph	ceph: fix type promotion bug on 32bit systems	2023-10-09 13:35:24 +02:00
coda	v6.6-vfs.ctime	2023-08-28 09:31:32 -07:00
configfs	configfs: convert to ctime accessor functions	2023-07-13 10:28:05 +02:00
cramfs	fs: Convert to bdev_open_by_dev()	2023-10-28 13:29:19 +02:00
crypto
debugfs	Char/Misc driver changes for 6.6-rc1	2023-09-01 09:53:54 -07:00
devpts	v6.6-vfs.misc	2023-08-28 10:17:14 -07:00
dlm	dlm: fix plock lookup when using multiple lockspaces	2023-08-25 10:31:39 -05:00
ecryptfs	v6.6-vfs.misc	2023-08-28 10:17:14 -07:00
efivarfs	efivarfs: fix statfs() on efivarfs	2023-09-11 09:10:02 +00:00
efs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
erofs	erofs: Convert to use bdev_open_by_path()	2023-10-28 13:29:20 +02:00
exfat	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
exportfs	exportfs: remove kernel-doc warnings in exportfs	2023-08-29 17:45:22 -04:00
ext2	\n	2023-08-30 12:10:50 -07:00
ext4	ext4: Convert to bdev_open_by_dev()	2023-10-28 13:29:20 +02:00
f2fs	f2fs: Convert to bdev_open_by_dev/path()	2023-10-28 13:29:20 +02:00
fat	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
freevxfs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
fscache
fuse	fuse update for 6.6	2023-09-05 12:45:55 -07:00
gfs2	gfs2: Fix quota=quiet oversight	2023-09-18 16:26:24 +02:00
hfs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
hfsplus	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
hostfs	hostfs: convert to ctime accessor functions	2023-07-24 10:30:00 +02:00
hpfs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
hugetlbfs	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
iomap	iomap: fix short copy in iomap_write_iter()	2023-10-19 09:41:36 -07:00
isofs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
jbd2	Regression and bug fixes for ext4.	2023-09-17 10:33:53 -07:00
jffs2	jffs2: convert to ctime accessor functions	2023-07-24 10:30:01 +02:00
jfs	jfs: fix log->bdev_handle null ptr deref in lbmStartIO	2023-10-28 13:29:22 +02:00
kernfs	Driver core changes for 6.6-rc1	2023-09-01 09:43:18 -07:00
lockd	SUNRPC: Add enum svc_auth_status	2023-08-29 17:45:22 -04:00
minix	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
netfs	netfs: Only call folio_start_fscache() one time for each folio	2023-09-18 12:03:46 -07:00
nfs	nfs/blocklayout: Convert to use bdev_open_by_dev/path()	2023-10-28 13:29:21 +02:00
nfs_common
nfsd	nfsd-6.6 fixes:	2023-09-30 09:44:48 -07:00
nilfs2	nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()	2023-09-29 17:20:46 -07:00
nls	nls: Hide new NLS_UCS2_UTILS	2023-08-31 12:07:34 -05:00
notify	fanotify: limit reporting of event with non-decodeable file handles	2023-10-19 16:19:20 +02:00
ntfs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
ntfs3	driver ntfs3 for linux 6.6	2023-10-19 09:10:18 -07:00
ocfs2	ocfs2: Convert to use bdev_open_by_dev()	2023-10-28 13:29:21 +02:00
omfs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
openpromfs	openpromfs: convert to ctime accessor functions	2023-07-24 10:30:03 +02:00
orangefs	fs: drop the timespec64 argument from update_time	2023-08-11 09:04:57 +02:00
overlayfs	ovl: temporarily disable appending lowedirs	2023-10-14 22:42:45 +03:00
proc	proc: nommu: fix empty /proc/<pid>/maps	2023-09-19 13:21:34 -07:00
pstore	pstore fix for v6.6-rc1	2023-09-02 10:45:17 -07:00
qnx4	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
qnx6	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
quota	quota: Fix slow quotaoff	2023-10-06 11:01:23 +02:00
ramfs	ramfs: convert to ctime accessor functions	2023-07-24 10:30:04 +02:00
reiserfs	reiserfs: Convert to bdev_open_by_dev/path()	2023-10-28 13:29:21 +02:00
romfs	fs: Convert to bdev_open_by_dev()	2023-10-28 13:29:19 +02:00
smb	Four SMB3 server fixes	2023-10-14 19:50:39 -07:00
squashfs	squashfs: convert to ctime accessor functions	2023-07-24 10:30:05 +02:00
sysfs
sysv	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
tracefs	eventfs: Test for dentries array allocated in eventfs_release()	2023-09-30 16:26:04 -04:00
ubifs	fs: drop the timespec64 argument from update_time	2023-08-11 09:04:57 +02:00
udf	\n	2023-08-30 12:10:50 -07:00
ufs	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
unicode
vboxsf	v6.6-vfs.ctime	2023-08-28 09:31:32 -07:00
verity	fsverity: skip PKCS#7 parser when keyring is empty	2023-08-20 10:33:43 -07:00
xfs	xfs: Convert to bdev_open_by_path()	2023-10-28 13:29:21 +02:00
zonefs	New code for 6.6:	2023-08-28 11:59:52 -07:00
aio.c	aio: Annotate struct kioctx_table with __counted_by	2023-09-20 14:22:01 +02:00
anon_inodes.c
attr.c	v6.6-vfs.misc	2023-08-28 10:17:14 -07:00
bad_inode.c	fs: drop the timespec64 argument from update_time	2023-08-11 09:04:57 +02:00
binfmt_elf_fdpic.c	fs: binfmt_elf_efpic: fix personality for ELF-FDPIC	2023-09-29 17:20:45 -07:00
binfmt_elf_test.c
binfmt_elf.c	Merge branch 'expand-stack'	2023-06-28 20:35:21 -07:00
binfmt_flat.c
binfmt_misc.c	fs: convert to ctime accessor functions	2023-07-13 10:28:04 +02:00
binfmt_script.c
buffer.c	iomap: add a workaround for racy i_size updates on block devices	2023-09-25 08:55:00 -07:00
char_dev.c
compat_binfmt_elf.c
coredump.c	v6.5/vfs.misc	2023-06-26 09:50:21 -07:00
d_path.c
dax.c	mm: remove enum page_entry_size	2023-08-24 16:20:30 -07:00
dcache.c	fs/dcache: Replace printk and WARN_ON by WARN	2023-08-19 13:41:11 +02:00
direct-io.c	- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.	2023-06-28 10:28:11 -07:00
drop_caches.c	fs: drop_caches: draining pages before dropping caches	2023-08-18 10:12:11 -07:00
eventfd.c	eventfd: prevent underflow for eventfd semaphores	2023-07-11 11:41:34 +02:00
eventpoll.c	epoll: simplify ep_alloc()	2023-07-26 14:56:07 +02:00
exec.c	- An extensive rework of kexec and crash Kconfig from Eric DeVolder	2023-08-29 14:53:51 -07:00
fcntl.c	fcntl: Cast commands with int args explicitly	2023-07-10 14:36:11 +02:00
fhandle.c
file_table.c	fs: use __fput_sync in close(2)	2023-08-08 19:36:51 +02:00
file.c	v6.6-vfs.misc	2023-08-28 10:17:14 -07:00
filesystems.c
fs_context.c	fs: factor out vfs_parse_monolithic_sep() helper	2023-10-12 18:53:36 +03:00
fs_parser.c
fs_pin.c
fs_struct.c	kill do_each_thread()	2023-08-21 13:46:25 -07:00
fs_types.c
fs-writeback.c	fs-writeback: do not requeue a clean inode having skipped pages	2023-09-20 14:22:01 +02:00
fsopen.c	fs: add FSCONFIG_CMD_CREATE_EXCL	2023-08-14 18:48:02 +02:00
init.c
inode.c	Revert "fs: add infrastructure for multigrain timestamps"	2023-09-20 18:05:31 +02:00
internal.h	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
ioctl.c	v6.6-vfs.super	2023-08-28 11:04:18 -07:00
Kconfig	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
Kconfig.binfmt	riscv: support the elf-fdpic binfmt loader	2023-08-23 14:17:43 -07:00
kernel_read_file.c	fs: Fix kernel-doc warnings	2023-08-19 12:12:12 +02:00
libfs.c	direct_write_fallback(): on error revert the ->ki_pos update from buffered write	2023-09-20 14:22:01 +02:00
locks.c	NFSD 6.6 Release Notes	2023-08-31 15:32:18 -07:00
Makefile	fs: add CONFIG_BUFFER_HEAD	2023-08-02 09:13:09 -06:00
mbcache.c
mnt_idmapping.c
mount.h
mpage.c
namei.c	audit,io_uring: io_uring openat triggers audit reference count underflow	2023-10-13 18:34:46 +02:00
namespace.c	v6.5/vfs.mount	2023-06-26 10:27:04 -07:00
nsfs.c	fs: convert to ctime accessor functions	2023-07-13 10:28:04 +02:00
open.c	v6.6-vfs.fchmodat2	2023-08-28 11:25:27 -07:00
pipe.c	fs/pipe: remove duplicate "offset" initializer	2023-09-20 14:22:01 +02:00
pnode.c
pnode.h
posix_acl.c	fs: convert to ctime accessor functions	2023-07-13 10:28:04 +02:00
proc_namespace.c
read_write.c	fs: Fix one kernel-doc comment	2023-08-15 08:32:45 +02:00
readdir.c	vfs: get rid of old '->iterate' directory operation	2023-08-06 15:08:35 +02:00
remap_range.c
select.c
seq_file.c
signalfd.c
splice.c	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
stack.c	fs: convert to ctime accessor functions	2023-07-13 10:28:04 +02:00
stat.c	Revert "fs: add infrastructure for multigrain timestamps"	2023-09-20 18:05:31 +02:00
statfs.c
super.c	fs: Avoid grabbing sb->s_umount under bdev->bd_holder_lock	2023-10-28 13:29:22 +02:00
sync.c
sysctls.c
timerfd.c
userfaultfd.c	mm: userfaultfd: remove stale comment about core dump locking	2023-08-24 16:20:27 -07:00
utimes.c
xattr.c	tmpfs,xattr: GFP_KERNEL_ACCOUNT for simple xattrs	2023-08-22 10:57:46 +02:00