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David Howells ceca54f1f0 afs: Fix file locking on R/O volumes to operate in local mode 
[ Upstream commit b590eb41be ]

AFS doesn't really do locking on R/O volumes as fileservers don't maintain
state with each other and thus a lock on a R/O volume file on one
fileserver will not be be visible to someone looking at the same file on
another fileserver.

Further, the server may return an error if you try it.

Fix this by doing what other AFS clients do and handle filelocking on R/O
volume files entirely within the client and don't touch the server.

Fixes: 6c6c1d63c2 ("afs: Provide mount-time configurable byte-range file locking emulation")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-03 07:33:05 +01:00
..
9p 9p: v9fs_listxattr: fix %s null argument warning 2023-11-28 17:19:46 +00:00
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 afs: Fix file locking on R/O volumes to operate in local mode 2023-12-03 07:33:05 +01:00
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: zoned: wait for data BG to be finished on direct IO allocation 2023-11-28 17:20:10 +00:00
cachefiles - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") 2023-08-29 14:25:26 -07:00
ceph assorted fixes all over the place 2023-10-27 16:44:58 -10:00
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 v6.6-vfs.super 2023-08-28 11:04:18 -07:00
crypto
debugfs debugfs: Fix __rcu type comparison warning 2023-11-20 11:59:26 +01:00
devpts v6.6-vfs.misc 2023-08-28 10:17:14 -07:00
dlm fs: dlm: Simplify buffer size computation in dlm_create_debug_file() 2023-11-20 11:59:37 +01:00
ecryptfs fs: Pass AT_GETATTR_NOSEC flag to getattr interface function 2023-12-03 07:33:03 +01:00
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: fix erofs_insert_workgroup() lockref usage 2023-11-20 11:59:23 +01:00
exfat exfat: support handle zero-size directory 2023-11-28 17:19:44 +00:00
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: fix racy may inline data check in dio write 2023-11-28 17:20:16 +00:00
f2fs f2fs: split initial and dynamic conditions for extent_cache 2023-11-28 17:20:11 +00:00
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: don't withdraw if init_threads() got interrupted 2023-11-28 17:20:11 +00:00
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 fs: use nth_page() in place of direct struct page manipulation 2023-11-28 17:20:05 +00:00
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 jbd2: fix potential data lost in recovering journal raced with synchronizing fs bdev 2023-11-28 17:20:04 +00:00
jffs2 jffs2: convert to ctime accessor functions 2023-07-24 10:30:01 +02:00
jfs jfs: fix array-index-out-of-bounds in diAlloc 2023-11-28 17:19:43 +00:00
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 NFSv4.1: fix SP4_MACH_CRED protection for pnfs IO 2023-11-28 17:19:49 +00:00
nfs_common
nfsd NFSD: Fix checksum mismatches in the duplicate reply cache 2023-12-03 07:33:02 +01:00
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 Many ext4 and jbd2 cleanups and bug fixes for v6.6-rc1. 2023-08-31 15:18:15 -07:00
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 fs: Pass AT_GETATTR_NOSEC flag to getattr interface function 2023-12-03 07:33:03 +01:00
proc watchdog: move softlockup_panic back to early_param 2023-11-28 17:19:57 +00:00
pstore pstore/platform: Add check for kstrdup 2023-11-20 11:58:53 +01:00
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: explicitly forbid quota files from being encrypted 2023-11-28 17:20:04 +00:00
ramfs ramfs: convert to ctime accessor functions 2023-07-24 10:30:04 +02:00
reiserfs reiserfs: Replace 1-element array with C99 style flex-array 2023-09-11 14:07:46 +02:00
romfs for-6.6/block-2023-08-28 2023-08-29 20:21:42 -07:00
smb cifs: Fix encryption of cleared, but unset rq_iter data buffers 2023-11-28 17:20:09 +00:00
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: Check for NULL ef in eventfs_set_attr() 2023-11-20 11:59:38 +01:00
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: recovery should not clear di_flushiter unconditionally 2023-11-28 17:20:09 +00:00
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.c Merge branch 'expand-stack' 2023-06-28 20:35:21 -07:00
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_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.c v6.6-vfs.misc 2023-08-28 10:17:14 -07:00
file_table.c fs: use __fput_sync in close(2) 2023-08-08 19:36:51 +02:00
filesystems.c
fs-writeback.c writeback, cgroup: switch inodes with dirty timestamps to release dying cgwbs 2023-11-20 11:58:52 +01:00
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
fsopen.c fs: add FSCONFIG_CMD_CREATE_EXCL 2023-08-14 18:48:02 +02:00
init.c
inode.c filemap: add a per-mapping stable writes flag 2023-12-03 07:33:03 +01:00
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 libfs: getdents() should return 0 after reaching EOD 2023-12-03 07:33:03 +01:00
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 fs: Pass AT_GETATTR_NOSEC flag to getattr interface function 2023-12-03 07:33:03 +01:00
statfs.c
super.c fs: export sget_dev() 2023-08-31 12:47:15 +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