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Rajasi Mandal 1ef15fbe67 cifs: client: enforce consistent handling of multichannel and max_channels 
Previously, the behavior of the multichannel and max_channels mount
options was inconsistent and order-dependent. For example, specifying
"multichannel,max_channels=1" would result in 2 channels, while
"max_channels=1,multichannel" would result in 1 channel. Additionally,
conflicting combinations such as "nomultichannel,max_channels=3" or
"multichannel,max_channels=1" did not produce errors and could lead to
unexpected channel counts.

This commit introduces two new fields in smb3_fs_context to explicitly
track whether multichannel and max_channels were specified during
mount. The option parsing and validation logic is updated to ensure:
- The outcome is no longer dependent on the order of options.
- Conflicting combinations (e.g., "nomultichannel,max_channels=3" or
  "multichannel,max_channels=1") are detected and result in an error.
- The number of channels created is consistent with the specified
  options.

This improves the reliability and predictability of mount option
handling for SMB3 multichannel support.

Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Rajasi Mandal <rajasimandal@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-12-03 23:32:44 -06:00
..
9p
Merge tag 'vfs-6.19-rc1.fs_header' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 14:18:01 -08:00
adfs
Merge tag 'vfs-6.17-rc1.mmap_prepare' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-07-28 13:43:25 -07:00
affs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
afs
Merge tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2025-12-03 17:24:33 -08:00
autofs
Merge tag 'vfs-6.19-rc1.fd_prepare.fs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 17:32:07 -08:00
befs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
bfs
Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:02:34 -08:00
btrfs
Merge tag 'for-6.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2025-12-03 20:03:46 -08:00
cachefiles
Merge tag 'vfs-6.19-rc1.directory.locking' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 16:13:46 -08:00
ceph
Merge tag 'printk-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
2025-12-03 12:42:36 -08:00
coda
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
configfs
Merge tag 'pull-f_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2025-10-03 16:32:36 -07:00
cramfs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
crypto
Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:02:34 -08:00
debugfs
Add start_renaming_two_dentries()
2025-11-14 13:15:58 +01:00
devpts
…
dlm
net: Convert proto callbacks from sockaddr to sockaddr_unsized
2025-11-04 19:10:33 -08:00
ecryptfs
Merge tag 'vfs-6.19-rc1.directory.locking' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 16:13:46 -08:00
efivarfs
power: always freeze efivarfs
2025-11-12 10:12:39 +01:00
efs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
erofs
Merge tag 'erofs-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
2025-12-03 20:14:44 -08:00
exfat
Merge tag 'vfs-6.18-rc7.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
2025-11-17 09:11:27 -08:00
exportfs
…
ext2
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
ext4
Merge tag 'vfs-6.19-rc1.guards' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 14:39:03 -08:00
f2fs
Merge tag 'vfs-6.19-rc1.fs_header' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 14:18:01 -08:00
fat
Merge tag 'vfs-6.19-rc1.fs_header' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 14:18:01 -08:00
freevxfs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
fuse
Merge tag 'for-6.19/io_uring-20251201' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
2025-12-03 18:58:57 -08:00
gfs2
Merge tag 'vfs-6.19-rc1.folio' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 10:26:38 -08:00
hfs
Merge tag 'hfs-v6.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs
2025-12-03 20:08:32 -08:00
hfsplus
Merge tag 'hfs-v6.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs
2025-12-03 20:08:32 -08:00
hostfs
Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:02:34 -08:00
hpfs
Merge tag 'vfs-6.19-rc1.fs_header' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 14:18:01 -08:00
hugetlbfs
hugetlbfs: move lock assertions after early returns in huge_pmd_unshare()
2025-10-21 15:46:17 -07:00
iomap
Merge tag 'vfs-6.19-rc1.folio' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 10:26:38 -08:00
isofs
Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:02:34 -08:00
jbd2
jbd2: ensure that all ongoing I/O complete before freeing blocks
2025-10-10 13:10:06 -04:00
jffs2
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
jfs
Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:02:34 -08:00
kernfs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
lockd
tools: ynl-gen: add regeneration comment
2025-11-25 19:20:42 -08:00
minix
Merge tag 'vfs-6.19-rc1.minix' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 15:22:40 -08:00
netfs
Merge tag 'vfs-6.19-rc1.folio' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 10:26:38 -08:00
nfs
Merge tag 'vfs-6.19-rc1.directory.delegations' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 15:34:41 -08:00
nfs_common
NFS/localio: nfs_uuid_put() fix the wake up after unlinking the file
2025-08-05 16:45:40 -07:00
nfsd
Merge tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2025-12-03 17:24:33 -08:00
nilfs2
Merge tag 'vfs-6.19-rc1.fs_header' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 14:18:01 -08:00
nls
…
notify
Merge tag 'vfs-6.19-rc1.fd_prepare.fs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 17:32:07 -08:00
ntfs3
Merge tag 'vfs-6.19-rc1.fs_header' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 14:18:01 -08:00
ocfs2
Merge tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2025-12-03 17:24:33 -08:00
omfs
Merge tag 'vfs-6.19-rc1.fs_header' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 14:18:01 -08:00
openpromfs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
orangefs
Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:02:34 -08:00
overlayfs
Merge tag 'vfs-6.19-rc1.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 16:31:21 -08:00
proc
Merge tag 'locking-core-2025-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-12-01 19:50:58 -08:00
pstore
Merge tag 'pstore-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2025-09-29 18:08:34 -07:00
qnx4
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
qnx6
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
quota
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
ramfs
fs: rename generic_delete_inode() and generic_drop_inode()
2025-09-15 16:09:42 +02:00
resctrl
Merge tag 'x86_cache_for_v6.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-12-02 11:55:58 -08:00
romfs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
smb
cifs: client: enforce consistent handling of multichannel and max_channels
2025-12-03 23:32:44 -06:00
squashfs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
sysfs
sysfs: check visibility before changing group attribute ownership
2025-10-17 09:48:34 +02:00
tests
…
tracefs
Merge tag 'pull-rpc_pipefs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2025-07-28 09:56:09 -07:00
ubifs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
udf
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
ufs
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
unicode
…
vboxsf
simplify vboxsf_dir_atomic_open()
2025-09-16 23:59:38 -04:00
verity
Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux
2025-09-29 15:55:20 -07:00
xfs
Merge tag 'xfs-merge-6.19' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2025-12-03 20:19:38 -08:00
zonefs
Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:02:34 -08:00
aio.c
aio: use credential guards
2025-11-04 12:36:33 +01:00
anon_inodes.c
anon_inodes: convert to FD_ADD()
2025-11-28 12:42:31 +01:00
attr.c
filelock: add struct delegated_inode
2025-11-12 09:38:34 +01:00
backing-file.c
Merge tag 'kernel-6.19-rc1.cred' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 13:45:41 -08:00
bad_inode.c
…
binfmt_elf_fdpic.c
Merge tag 'execve-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2025-07-28 17:11:40 -07:00
binfmt_elf.c
rseq: Provide and use rseq_set_ids()
2025-11-04 08:33:33 +01:00
binfmt_flat.c
…
binfmt_misc.c
Merge tag 'kernel-6.19-rc1.cred' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 13:45:41 -08:00
binfmt_script.c
…
bpf_fs_kfuncs.c
bpf...d_path(): constify path argument
2025-09-15 21:17:08 -04:00
buffer.c
Merge tag 'vfs-6.19-rc1.folio' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 10:26:38 -08:00
char_dev.c
…
compat_binfmt_elf.c
…
coredump.c
Merge tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2025-12-03 17:24:33 -08:00
d_path.c
…
dax.c
Merge tag 'vfs-6.19-rc1.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 08:14:00 -08:00
dcache.c
Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:02:34 -08:00
direct-io.c
Merge tag 'mm-stable-2025-07-30-15-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-07-31 14:57:54 -07:00
drop_caches.c
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
eventfd.c
eventfd: convert do_eventfd() to FD_PREPARE()
2025-11-28 12:42:31 +01:00
eventpoll.c
eventpoll: convert do_epoll_create() to FD_PREPARE()
2025-11-28 12:42:32 +01:00
exec.c
Merge tag 'core-rseq-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-12-02 08:48:53 -08:00
fcntl.c
vfs: expose delegation support to userland
2025-11-12 09:38:37 +01:00
fhandle.c
fhandle: convert do_handle_open() to FD_ADD()
2025-11-28 12:42:31 +01:00
file_attr.c
fs: remove spurious exports in fs/file_attr.c
2025-11-19 12:17:31 +01:00
file_table.c
fs: update comment in init_file()
2025-10-07 12:48:33 +02:00
file.c
Merge tag 'vfs-6.19-rc1.fd_prepare.fs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 17:32:07 -08:00
filesystems.c
…
fs_context.c
change the calling conventions for vfs_parse_fs_string()
2025-09-04 15:20:51 -04:00
fs_dirent.c
fs: rename fs_types.h to fs_dirent.h
2025-11-05 09:51:30 +01:00
fs_parser.c
…
fs_pin.c
…
fs_struct.c
fs: inline current_umask() and move it to fs_struct.h
2025-11-05 22:51:23 +01:00
fs-writeback.c
Merge tag 'vfs-6.19-rc1.writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:20:51 -08:00
fsopen.c
fscontext: do not consume log entries when returning -EMSGSIZE
2025-08-11 14:52:41 +02:00
init.c
vfs: make vfs_symlink break delegations on parent dir
2025-11-12 09:38:36 +01:00
inode.c
Merge tag 'vfs-6.19-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:02:34 -08:00
internal.h
VFS: introduce start_dirop() and end_dirop()
2025-11-14 13:15:56 +01:00
ioctl.c
fs: remove vfs_ioctl export
2025-09-01 13:08:01 +02:00
Kconfig
Merge tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-10-02 18:18:33 -07:00
Kconfig.binfmt
binfmt_elf: preserve original ELF e_flags for core dumps
2025-09-03 20:49:32 -07:00
kernel_read_file.c
…
libfs.c
Merge tag 'vfs-6.19-rc1.directory.locking' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 16:13:46 -08:00
locks.c
filelock: __fcntl_getlease: fix kernel-doc warnings
2025-11-28 10:30:41 +01:00
Makefile
fs: rename fs_types.h to fs_dirent.h
2025-11-05 09:51:30 +01:00
mbcache.c
…
mnt_idmapping.c
…
mount.h
fs: use boolean to indicate anonymous mount namespace
2025-11-11 10:01:31 +01:00
mpage.c
mpage: convert do_mpage_readpage() to return void type
2025-09-21 14:22:16 -07:00
namei.c
Merge tag 'vfs-6.19-rc1.directory.locking' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 16:13:46 -08:00
namespace.c
Merge tag 'vfs-6.19-rc1.fd_prepare.fs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 17:32:07 -08:00
nsfs.c
Merge tag 'vfs-6.19-rc1.fd_prepare.fs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 17:32:07 -08:00
open.c
Merge tag 'vfs-6.19-rc1.fd_prepare.fs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 17:32:07 -08:00
pidfs.c
Merge tag 'vfs-6.19-rc1.coredump' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 10:17:39 -08:00
pipe.c
Coccinelle-based conversion to use ->i_state accessors
2025-10-20 20:22:26 +02:00
pnode.c
umount_tree(): take all victims out of propagation graph at once
2025-09-15 21:26:44 -04:00
pnode.h
umount_tree(): take all victims out of propagation graph at once
2025-09-15 21:26:44 -04:00
posix_acl.c
filelock: add struct delegated_inode
2025-11-12 09:38:34 +01:00
proc_namespace.c
…
read_write.c
copy_file_range: limit size if in compat mode
2025-08-15 16:11:47 +02:00
readdir.c
…
remap_range.c
…
select.c
select: Convert to scoped user access
2025-11-04 08:28:34 +01:00
seq_file.c
…
signalfd.c
signalfd: convert do_signalfd4() to FD_ADD()
2025-11-28 12:42:32 +01:00
splice.c
fs/splice.c: trivial fix: pipes -> pipe's
2025-11-25 10:11:16 +01:00
stack.c
…
stat.c
constify path argument of vfs_statx_path()
2025-09-15 21:17:07 -04:00
statfs.c
…
super.c
Merge tag 'vfs-6.19-rc1.writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:20:51 -08:00
sync.c
Merge tag 'vfs-6.19-rc1.writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 09:20:51 -08:00
sysctls.c
…
timerfd.c
timerfd: convert timerfd_create() to FD_ADD()
2025-11-28 12:42:32 +01:00
userfaultfd.c
userfaultfd: convert new_userfaultfd() to FD_PREPARE()
2025-11-28 12:42:33 +01:00
utimes.c
Merge tag 'vfs-6.19-rc1.directory.delegations' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 15:34:41 -08:00
xattr.c
filelock: add struct delegated_inode
2025-11-12 09:38:34 +01:00