Commit Graph

70668 Commits

Author SHA1 Message Date
Muhammad Usama Anjum
822bc8ea51 cifsd: use kfree to free memory allocated by kmalloc or kzalloc
kfree should be used to free memory allocated by kmalloc or kzalloc to
avoid any overhead and for maintaining consistency.

Signed-off-by: Muhammad Usama Anjum <musamaanjum@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:36 -05:00
Muhammad Usama Anjum
c250e8f556 cifsd: fix memory leak when loop ends
Memory is being allocated and if veto_list is zero, the loop breaks
without cleaning up the allocated memory. In this patch, the length
check has been moved before allocation. If loop breaks, the memory isn't
allocated in the first place. Thus the memory is being protected from
leaking.

Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1503590 ("Resource leaks")
Signed-off-by: Muhammad Usama Anjum <musamaanjum@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:35 -05:00
Gibeom Kim
5da64d8784 cifsd: remove stale prototype and variables
Remove unused function prototype and variables.

Signed-off-by: Gibeom Kim <gibeomii.kim@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:35 -05:00
Namjae Jeon
02b68b2065 cifsd: use xarray instead of linked list for tree connect list
Matthew suggest to change linked list of tree connect list to xarray.
It will be tree connect lookup in O(log(n)) time instead of O(n) time.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:34 -05:00
Hyunchul Lee
8044ee8e64 cifsd: remove useless error handling in ksmbd_vfs_read
dentry->d_inode never happen to be NULL if we hold the dentry.

Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:34 -05:00
Hyunchul Lee
d2f72ed8fa cifsd: use file_inode() instead of d_inode()
use file_inode() to get layerd filesystems right.

Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:33 -05:00
Hyunchul Lee
1637023594 cifsd: handle unhashed dentry in ksmbd_vfs_mkdir
vfs_mkdir could return the dentry left unhashed negative on success.

Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:33 -05:00
Hyunchul Lee
96a34377dc cifsd: remove calling d_path in error paths
calling d_path is excessive in error paths.

Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:32 -05:00
Namjae Jeon
d710f37c7b cifsd: remove smack inherit leftovers
smack inherit was added for internal product beofre.
It is no longer used. This patch remove it's left overs.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:32 -05:00
Namjae Jeon
17af7d5b8a cifsd: fix implicit declaration of function 'locks_alloc_lock'
Randy reported build failure:
 ../fs/cifsd/smb2pdu.c:6655:7: error: implicit declaration of function
 'locks_alloc_lock'; did you mean 'locks_copy_lock'?

This patch add depend on FILE_LOCKING.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:31 -05:00
Namjae Jeon
a36abeaaf0 cifsd: fix implicit declaration of function 'groups_alloc'
kernel test robot reported:
    fs/cifsd/smb_common.c: In function 'ksmbd_override_fsids':
>> fs/cifsd/smb_common.c:613:7: error: implicit declaration of function
>> 'groups_alloc'; did you mean 'cgroup_sk_alloc'?
>> [-Werror=implicit-function-declaration]
     613 |  gi = groups_alloc(0);
         |       ^~~~~~~~~~~~
         |       cgroup_sk_alloc
   fs/cifsd/smb_common.c:613:5: warning: assignment to 'struct
group_info *' from 'int' makes pointer from integer without a cast
[-Wint-conversion]
     613 |  gi = groups_alloc(0);
         |     ^
>> fs/cifsd/smb_common.c:618:2: error: implicit declaration of function
>> 'set_groups'; did you mean 'get_cgroup_ns'?
>> [-Werror=implicit-function-declaration]
     618 |  set_groups(cred, gi);
         |  ^~~~~~~~~~
         |  get_cgroup_ns
   cc1: some warnings being treated as errors

This patch add depends on MULTIUSER.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:31 -05:00
Namjae Jeon
5365564901 cifsd: fix wrong prototype in comment
kernel test robot reported:
 >> fs/cifsd/oplock.c:1454: warning: expecting prototype for
    create_durable_rsp__buf(). Prototype was for
    create_durable_rsp_buf() instead

This patch fix wrong prototype in comment.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:30 -05:00
Namjae Jeon
a648d8aff8 cifsd: merge time_wrappers.h into smb_common.h
This patch merge time_wrappers.h into smb_common.h.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:30 -05:00
Namjae Jeon
64b39f4a2f cifsd: clean-up codes using chechpatch.pl --strict
Dan Carpenter suggested to run chechpatch.pl --strict on ksmbd to fix
check warnings. This patch does not fix all warnings but only things that
I can understand.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:29 -05:00
Namjae Jeon
7cb82de3cd cifsd: fix error return code in ksmbd_vfs_remove_file()
Change -ENOENT error to -EINVAL to response STATUS_INVALID_PARAMETER.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:29 -05:00
Namjae Jeon
c36fca8630 cifsd: add the check to work file lock and rename behaviors like Windows unless POSIX extensions are negotiated
This patch add the check to work file lock and rename behaviors
like Windows if POSIX extensions are not negotiated.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:28 -05:00
Namjae Jeon
20ea7fd2ac cifsd: use kmalloc() for small allocations
Just use kmalloc() for small allocations.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:28 -05:00
Namjae Jeon
69f447be15 cifsd: fix wrong use of rw semaphore in __session_create()
Adding list to session table should be protected by
down_write/up_write().

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:27 -05:00
Namjae Jeon
e506649907 cifsd: remove unneeded macros
Remove unneeded RESPONSE_BUF, REQUEST_BUF, RESPONSE_SZ, INIT_AUX_PAYLOAD,
HAS_AUX_PAYLOAD, AUX_PAYLOAD, AUX_PAYLOAD_SIZE, RESP_HDR_SIZE,
HAS_TRANSFORM_BUF and TRANSFORM_BUF macros.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:27 -05:00
Colin Ian King
3161ad3a71 cifsd: remove redundant assignment to variable err
The variable err is being initialized with a value that is never read
and it is being updated later with a new value.  The initialization is
redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:26 -05:00
Dan Carpenter
849f59e1a1 cifsd: fix error handling in ksmbd_server_init()
The error handling in ksmbd_server_init() uses "one function to free
everything style" which is impossible to audit and leads to several
canonical bugs.  When we free something that wasn't allocated it may be
uninitialized, an error pointer, freed in a different function or we
try freeing "foo->bar" when "foo" is a NULL pointer.  And since the
code is impossible to audit then it leads to memory leaks.

In the ksmbd_server_init() function, every goto will lead to a crash
because we have not allocated the work queue but we call
ksmbd_workqueue_destroy() which tries to flush a NULL work queue.
Another bug is if ksmbd_init_buffer_pools() fails then it leads to a
double free because we free "work_cache" twice.  A third type of bug is
that we forgot to call ksmbd_release_inode_hash() so that is a resource
leak.

A better way to write error handling is for every function to clean up
after itself and never leave things partially allocated.  Then we can
use "free the last successfully allocated resource" style.  That way
when someone is reading the code they can just track the last resource
in their head and verify that the goto matches what they expect.

In this patch I modified ksmbd_ipc_init() to clean up after itself and
then I converted ksmbd_server_init() to use gotos to clean up.

Fixes: cabcebc31de4 ("cifsd: introduce SMB3 kernel server")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:26 -05:00
Dan Carpenter
c1ea111fd1 cifsd: Fix an error code in smb2_read()
This code is assigning the wrong variable to "err" so it returns
zero/success instead of -ENOMEM.

Fixes: 788b6f45c1d2 ("cifsd: add server-side procedures for SMB3")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:25 -05:00
Namjae Jeon
b24c933580 cifsd: Pass string length parameter to match_pattern()
When iterating through a directory, a file's name may not be
null-terminated (depending on the underlying filesystem implementation).

Modify match_pattern to take the string's length into account when matching
it against the request pattern.

Signed-off-by: Marios Makassikis <mmakassikis@freebox.fr>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:24 -05:00
Namjae Jeon
548e9ad317 cifsd: fix warning: variable 'total_ace_size' and 'posix_ccontext' set but not used
kernel test robot reported warnings:

   fs/cifsd/smbacl.c: In function 'parse_sec_desc':
>> fs/cifsd/smbacl.c:786:6: warning: variable 'total_ace_size' set but
not used [-Wunused-but-set-variable]
     786 |  int total_ace_size = 0, pntsd_type;
         |      ^~~~~~~~~~~~~~
--
   fs/cifsd/smb2pdu.c: In function 'smb2_open':
>> fs/cifsd/smb2pdu.c:3285:26: warning: variable 'posix_ccontext' set but
not used [-Wunused-but-set-variable]
    3285 |   struct create_context *posix_ccontext;
         |                          ^~~~~~~~~~~~~~

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:24 -05:00
Hyunchul Lee
95fa1ce947 cifsd: fix incorrect comments
kernel test bot reports some incorrect comments.
This patch fixes these comments.

Reported-by: kernel test bot <lkp@intel.com>
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:23 -05:00
Sergey Senozhatsky
2e2b0dda18 cifsd: remove unneeded FIXME comments
Remove unneeded FIXME comments.

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:23 -05:00
Namjae Jeon
50355b0b20 cifsd: fix static checker warning from smb_check_perm_dacl()
Dan reported static checker warning:

  fs/cifsd/smbacl.c:1140 smb_check_perm_dacl()
  error: we previously assumed 'pntsd' could be null (see line 1137)

This patch validate bounds of pntsd buffer.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:21 -05:00
Namjae Jeon
bc3fcc9462 cifsd: fix static checker warning from smb_direct_post_send_data()
Dan reported static checker warning:
 fs/cifsd/transport_rdma.c:1168 smb_direct_post_send_data()
 warn: missing error code 'ret'

This patch add missing ret error code.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:21 -05:00
Dan Carpenter
a2ba2709f5 cifsd: Fix a use after free on error path
The ksmbd_free_work_struct() frees "work" so we need to swap the order
of these two function calls to avoid a use after free.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:20 -05:00
Dan Carpenter
8ef3296706 cifsd: fix a IS_ERR() vs NULL bug
The smb_direct_alloc_sendmsg() function never returns NULL, it only
returns error pointers so the check needs to be updated.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:20 -05:00
Dan Carpenter
86df49e105 cifsd: fix a precedence bug in parse_dacl()
The shift has higher precedence than mask so this doesn't work as
intended.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:20 -05:00
Namjae Jeon
e3f7087328 cifsd: fix WARNING: unmet direct dependencies detected for CRYPTO_ARC4
Randy reported warning message from fs/cifsd/Kconfig.

WARNING: unmet direct dependencies detected for CRYPTO_ARC4
  Depends on [n]: CRYPTO [=y] && CRYPTO_USER_API_ENABLE_OBSOLETE [=n]
  Selected by [y]:
  - SMB_SERVER [=y] && NETWORK_FILESYSTEMS [=y] && INET [=y]

arc4 library is not currently in use. So this patch eliminates
unnecessary library set in cifsd.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:19 -05:00
Colin Ian King
1e853b937b cifsd: Fix a handful of spelling mistakes
There are several spelling mistakes in various ksmbd_err and
ksmbd_debug messages. Fix these.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:19 -05:00
Stephen Rothwell
36ba38663b cifsd: uniquify extract_sharename()
uniquify extract_sharename().

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:18 -05:00
Namjae Jeon
a848c4f15a cifsd: add Kconfig and Makefile
This adds the Kconfig and Makefile for cifsd.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:16 -05:00
Namjae Jeon
f441584858 cifsd: add file operations
This adds file operations and buffer pool for cifsd.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:16 -05:00
Namjae Jeon
e2f34481b2 cifsd: add server-side procedures for SMB3
This adds smb3 engine, NTLM/NTLMv2/Kerberos authentication, oplock/lease
cache mechanism for cifsd.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:15 -05:00
Namjae Jeon
0626e6641f cifsd: add server handler for central processing and tranport layers
This adds server handler for central processing,
transport layers(tcp, rdma, ipc) and a document describing cifsd
architecture.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-10 19:15:15 -05:00
Linus Torvalds
0a55a1fbed 3 small SMB3 chmultichannel related changesets (also for stable)
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmCXTY4ACgkQiiy9cAdy
 T1GTwAv8DHmrUOSMPY79kH+vYrg67S8bnCEE2b0ChP0CyU/Gp05CRUTH+C9bstb+
 hou6Wx7tvAa++PpgdwBfNcj+Be76PcPLxCQoXglOzckpuAdvyCLgzcOhrPoOYAyR
 gbLsfkIXMPGFLnGltZMQl9TCXEIpF6xjizZUyHVSq0UBhIyfBOdsDeoCNbVOuB1Y
 t6KtBRTro+P2DIj9zITKYCnKFU3OXae/gBwv+wQU066mNq/IxlMqX84Av728govJ
 sEd8CSLwnwX4/NsvADjiy4+M6iLvWtXN9xDr6S5Hyo+1Y/SkU/C1qo8Uc8H74gdT
 D9LSoGTBx36X97eSisrE8vOFt3SIwEy9fU/yU87qrDuwwCjBYNvYCxK+VaVUA0vH
 1CjScSifrG7MZAAw7h4o6Ug6q4Otobabj+ODq4exkjW+GYb0wQ/DzjqVuoIvqP7F
 TLoRisVWpg/MY7FcEU1ZpYdHAFyKKTcdOLlmX6Y40sKue0mwfpcv0rI+isNUqCYX
 R3CJ5tPp
 =9Egy
 -----END PGP SIGNATURE-----

Merge tag '5.13-rc-smb3-part3' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Three small SMB3 chmultichannel related changesets (also for stable)
  from the SMB3 test event this week.

  The other fixes are still in review/testing"

* tag '5.13-rc-smb3-part3' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: if max_channels set to more than one channel request multichannel
  smb3: do not attempt multichannel to server which does not support it
  smb3: when mounting with multichannel include it in requested capabilities
2021-05-09 13:19:29 -07:00
Linus Torvalds
0f979d815c Kbuild updates for v5.13 (2nd)
- Convert sh and sparc to use generic shell scripts to generate the
    syscall headers
 
  - refactor .gitignore files
 
  - Update kernel/config_data.gz only when the content of the .config is
    really changed, which avoids the unneeded re-link of vmlinux
 
  - move "remove stale files" workarounds to scripts/remove-stale-files
 
  - suppress unused-but-set-variable warnings by default for Clang as well
 
  - fix locale setting LANG=C to LC_ALL=C
 
  - improve 'make distclean'
 
  - always keep intermediate objects from scripts/link-vmlinux.sh
 
  - move IF_ENABLED out of <linux/kconfig.h> to make it self-contained
 
  - misc cleanups
 -----BEGIN PGP SIGNATURE-----
 
 iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAmCWrucVHG1hc2FoaXJv
 eUBrZXJuZWwub3JnAAoJED2LAQed4NsGRLkQAJ8t7PfMJLSh/VcgDXp3Z7fZ/V2M
 RUGbOeRYErR1gylejuip/R19mS5MiBNecU60VrugZyDOMf98+mx61mI/ykpPeX92
 sE3VU5MPXEwmv758QUr4gH014TZshMtHHo+tXA+NVUbqFp7RTnkZMDjOXGthYDHG
 NhDou4LZ2P0CUKm8vb58SJPqB7ZdYOT9eEQEdHevm18Gx0KProCxRziup7loldy7
 ET770okQ23if90ufCSVmnM6Ee6opoKYvXS5lv8V/a4xV/VbicbUclpzIZsHF7L2i
 mIfr6dy480ncOaQlfWnX9ACgIeeqiFPOeZbAu7HAtwXzP5vCahgQ9FKVC7KPt+BP
 Lf3LgdBrfSP5A7f7FrtkkPmP7pl1j6/Bq3+PhCur9XimtRIsvTOx7m7nuvsY4yHC
 /wmBXFZgqE5DGyzpHXz1az8JHWw2AesP9L2f536BhfvRtdXaoOxPtZ/rmO1lfcMV
 fWMa9f1em8lXwCiD1dR8UkBrIxItty+qqPffu2S/DlEepbiZrCg1gD827Fy7Mm3n
 5rvrzYMOY2YK0yW1jtm+w3NlPlmG91BDUTP8tEcDxrTOIXezwqJf7fw8qIgGIy7W
 3WzuBfgSvpT977ByMsB0YYugo2Xie+R1jpOWt7tv6KHM4varNBu0WpVhQhrKQr5o
 agJiuvzsf3b+64oP
 =935P
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - Convert sh and sparc to use generic shell scripts to generate the
   syscall headers

 - refactor .gitignore files

 - Update kernel/config_data.gz only when the content of the .config
   is really changed, which avoids the unneeded re-link of vmlinux

 - move "remove stale files" workarounds to scripts/remove-stale-files

 - suppress unused-but-set-variable warnings by default for Clang
   as well

 - fix locale setting LANG=C to LC_ALL=C

 - improve 'make distclean'

 - always keep intermediate objects from scripts/link-vmlinux.sh

 - move IF_ENABLED out of <linux/kconfig.h> to make it self-contained

 - misc cleanups

* tag 'kbuild-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits)
  linux/kconfig.h: replace IF_ENABLED() with PTR_IF() in <linux/kernel.h>
  kbuild: Don't remove link-vmlinux temporary files on exit/signal
  kbuild: remove the unneeded comments for external module builds
  kbuild: make distclean remove tag files in sub-directories
  kbuild: make distclean work against $(objtree) instead of $(srctree)
  kbuild: refactor modname-multi by using suffix-search
  kbuild: refactor fdtoverlay rule
  kbuild: parameterize the .o part of suffix-search
  arch: use cross_compiling to check whether it is a cross build or not
  kbuild: remove ARCH=sh64 support from top Makefile
  .gitignore: prefix local generated files with a slash
  kbuild: replace LANG=C with LC_ALL=C
  Makefile: Move -Wno-unused-but-set-variable out of GCC only block
  kbuild: add a script to remove stale generated files
  kbuild: update config_data.gz only when the content of .config is changed
  .gitignore: ignore only top-level modules.builtin
  .gitignore: move tags and TAGS close to other tag files
  kernel/.gitgnore: remove stale timeconst.h and hz.bc
  usr/include: refactor .gitignore
  genksyms: fix stale comment
  ...
2021-05-08 10:00:11 -07:00
Steve French
c1f8a398b6 smb3: if max_channels set to more than one channel request multichannel
Mounting with "multichannel" is obviously implied if user requested
more than one channel on mount (ie mount parm max_channels>1).
Currently both have to be specified. Fix that so that if max_channels
is greater than 1 on mount, enable multichannel rather than silently
falling back to non-multichannel.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-By: Tom Talpey <tom@talpey.com>
Cc: <stable@vger.kernel.org> # v5.11+
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
2021-05-08 10:51:06 -05:00
Steve French
9c2dc11df5 smb3: do not attempt multichannel to server which does not support it
We were ignoring CAP_MULTI_CHANNEL in the server response - if the
server doesn't support multichannel we should not be attempting it.

See MS-SMB2 section 3.2.5.2

Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-By: Tom Talpey <tom@talpey.com>
Cc: <stable@vger.kernel.org> # v5.8+
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-08 10:50:53 -05:00
Steve French
679971e721 smb3: when mounting with multichannel include it in requested capabilities
In the SMB3/SMB3.1.1 negotiate protocol request, we are supposed to
advertise CAP_MULTICHANNEL capability when establishing multiple
channels has been requested by the user doing the mount. See MS-SMB2
sections 2.2.3 and 3.2.5.2

Without setting it there is some risk that multichannel could fail
if the server interpreted the field strictly.

Reviewed-By: Tom Talpey <tom@talpey.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Cc: <stable@vger.kernel.org> # v5.8+
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-05-08 10:44:11 -05:00
Linus Torvalds
bd313968fd block-5.13-2021-05-07
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmCVVnQQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgps0ND/0SL4zWQJ5fh+NVCyQJFLm0E+ejqWg6Ykmk
 EE1Dzhgr9lgxZU19UCXKtN0lF9icWPfoVDxvqsB2luJLc89GciOmla3PaknCgY6N
 QZ/GJh/2Kwb9ybVblzKvUNnGSZOZ8gplpAAXu4zlbFXl7xoGBb12kql78fjw84rS
 S4IG+nKvTdC6ENVTPwFMj0UREL5nccVJycvsuZgzYsSQ//5i5zViDz7mfdCujAo4
 g3rt8rctBqYoF684BG4OVkDp7ivJUFvMW93PVqvx8vw2sAOB11v+sAKvX5cZIsdM
 Z01a3C5nY8IQcpXhoI7n6Kgg4VY0ubeiOrlIBssNQWJszquAHPN7s5uiiSFaIKwg
 mCyo69Ofmk4wYm2UO0hM8y7x94QvUNKmlcVxb4ls5OEaAKS/v7chnjoovp8s8Me/
 2w1BMBB4qPcF99+K2GF9KyT/gKrXDRXkr9ERTtLLPpCf2uIXtFcU+X+Y64cOivhf
 ImN1kbN8fQm1ItiEntn5tVd9u9cDnfqTJhzutBolLP33jjarK3TblJ4cUZqN/xAC
 uH5k1IXZGHbrE9LuXUJQwFs752m21LElSkfG7OxzlktfJcKxJriM9o/dw0mgEmLv
 0i1meb55VMbtYT/dNWZEa2FRVtelFIngfoiLSgH0IHXU7sKgTEpgyLmSu4PrySez
 kRVUsF1Lfw==
 =Sv+q
 -----END PGP SIGNATURE-----

Merge tag 'block-5.13-2021-05-07' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - dasd spelling fixes (Bhaskar)

 - Limit bio max size on multi-page bvecs to the hardware limit, to
   avoid overly large bio's (and hence latencies). Originally queued for
   the merge window, but needed a fix and was dropped from the initial
   pull (Changheun)

 - NVMe pull request (Christoph):
      - reset the bdev to ns head when failover (Daniel Wagner)
      - remove unsupported command noise (Keith Busch)
      - misc passthrough improvements (Kanchan Joshi)
      - fix controller ioctl through ns_head (Minwoo Im)
      - fix controller timeouts during reset (Tao Chiu)

 - rnbd fixes/cleanups (Gioh, Md, Dima)

 - Fix iov_iter re-expansion (yangerkun)

* tag 'block-5.13-2021-05-07' of git://git.kernel.dk/linux-block:
  block: reexpand iov_iter after read/write
  nvmet: remove unsupported command noise
  nvme-multipath: reset bdev to ns head when failover
  nvme-pci: fix controller reset hang when racing with nvme_timeout
  nvme: move the fabrics queue ready check routines to core
  nvme: avoid memset for passthrough requests
  nvme: add nvme_get_ns helper
  nvme: fix controller ioctl through ns_head
  bio: limit bio max size
  RDMA/rtrs: fix uninitialized symbol 'cnt'
  s390: dasd: Mundane spelling fixes
  block/rnbd: Remove all likely and unlikely
  block/rnbd-clt: Check the return value of the function rtrs_clt_query
  block/rnbd: Fix style issues
  block/rnbd-clt: Change queue_depth type in rnbd_clt_session to size_t
2021-05-07 11:35:12 -07:00
Linus Torvalds
28b4afeb59 io_uring-5.13-2021-05-07
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmCVVmMQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpv7yEAC/WV1alcH9XdEqLrc2aDwlaScMmSlrMQhY
 ihtDCR9BsX11E3QcUB7D+VYjBo68uKR+ksa1/GN2Xp+vvqmdjQvZindgto/5b6u1
 ko0Dradl2zulCAc7QIdjb2tbmL+Q+JOX5wxv14/+2XabEcce3OegWIvIgX+56NFW
 ZHg80SQzXUhEtQcAUVCoPeBN+H+xzadgz38VlOI08gOG7/M6tS965GH3tZqTjh2K
 P7dLjUn0WcxZ3euAYAsQzNN2O2ObJfpCsQtsG2eSf8DGpanPe4gQjAud1BstDtN0
 CJ0+b6DHgzQYOAgPFjm7l0jjs+VnIYIMnoBBxm5EkIoktsj0hHdqTnEugoz4wTnS
 T8WgojaU6jYNx+Jj6vciCLk0lb5c3O3nxmw3w84/rtTwtaEChCAbWdAkl4cleNaw
 3/Z2bksCVrQWDVskmu4FP7+kGYpjpV+ZiA2+6OGwILTCN+W7vi079NByQAzdLaRb
 K/4lEGM7VYEXtq/I7C6VzjtY7gq46TJmpFW+OdQnPIguavp+7vlUl2pLV3oTeGBc
 E6c+xltgIN+sbbDc/57EJEvhHQod4A6HYOGwBMyjHrhr/sdQ4xvUaJPNmG9HfqRK
 SM3TOlwpHRWFTgbO+6qoJQSMvACQyE/SDqiPi08q75zFVTNCcYM7uYV3fJMsQ9sj
 vA+5HAaRKQ==
 =YwTw
 -----END PGP SIGNATURE-----

Merge tag 'io_uring-5.13-2021-05-07' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Mostly fixes for merge window merged code. In detail:

   - Error case memory leak fixes (Colin, Zqiang)

   - Add the tools/io_uring/ to the list of maintained files (Lukas)

   - Set of fixes for the modified buffer registration API (Pavel)

   - Sanitize io thread setup on x86 (Stefan)

   - Ensure we truncate transfer count for registered buffers (Thadeu)"

* tag 'io_uring-5.13-2021-05-07' of git://git.kernel.dk/linux-block:
  x86/process: setup io_threads more like normal user space threads
  MAINTAINERS: add io_uring tool to IO_URING
  io_uring: truncate lengths larger than MAX_RW_COUNT on provide buffers
  io_uring: Fix memory leak in io_sqe_buffers_register()
  io_uring: Fix premature return from loop and memory leak
  io_uring: fix unchecked error in switch_start()
  io_uring: allow empty slots for reg buffers
  io_uring: add more build check for uapi
  io_uring: dont overlap internal and user req flags
  io_uring: fix drain with rsrc CQEs
2021-05-07 11:29:23 -07:00
Linus Torvalds
a647034fe2 NFS client updates for Linux 5.13
Highlights include:
 
 Stable fixes:
 - Add validation of the UDP retrans parameter to prevent shift out-of-bounds
 - Don't discard pNFS layout segments that are marked for return
 
 Bugfixes:
 - Fix a NULL dereference crash in xprt_complete_bc_request() when the
   NFSv4.1 server misbehaves.
 - Fix the handling of NFS READDIR cookie verifiers
 - Sundry fixes to ensure attribute revalidation works correctly when the
   server does not return post-op attributes.
 - nfs4_bitmask_adjust() must not change the server global bitmasks
 - Fix major timeout handling in the RPC code.
 - NFSv4.2 fallocate() fixes.
 - Fix the NFSv4.2 SEEK_HOLE/SEEK_DATA end-of-file handling
 - Copy offload attribute revalidation fixes
 - Fix an incorrect filehandle size check in the pNFS flexfiles driver
 - Fix several RDMA transport setup/teardown races
 - Fix several RDMA queue wrapping issues
 - Fix a misplaced memory read barrier in sunrpc's call_decode()
 
 Features:
 - Micro optimisation of the TCP transmission queue using TCP_CORK
 - statx() performance improvements by further splitting up the tracking
   of invalid cached file metadata.
 - Support the NFSv4.2 "change_attr_type" attribute and use it to
   optimise handling of change attribute updates.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEESQctxSBg8JpV8KqEZwvnipYKAPIFAmCVLooACgkQZwvnipYK
 APJB5BAAtIJyhx40ooMBzcucDmXd1qovlKsb8ZlvnSI6c7wvHhFPNk9z4zwThnjL
 FpVYzJzK6XzAQY/PtgbrPwnSUmW925ngPWYR/hiYe+OGPBnYV+tXP8izCyEkNgMg
 45goDOxojGWl7AGTuAJiKcDSdH9PyIrbvt28iwcNSGjslasGSbAoL/836l4OIGr1
 Ymxs/NDML11dPco8GIKLGtHd8leFGleDx089VeNsgud8MdaFErp16O5Iz8DdzRKd
 W1l2zDMb05j8eDZIfy3w3FyrLkDXA+KgLSADiC8TcpxoadPaQJMeCvoIq8oqVndn
 bZBoxduXdLgf54Aec0WnNKFAOyc7pGvZoSNmFouT7EGV73g+g1LQ+ZbEE1bb8fCQ
 XHqCVaBt2+47NiTUgdxjXlZRfcn8fYKx0tVxfG3mQVMXUAWfsjmMyQMNgijDRJI2
 8Wz3lZMRGMILbR9j4QpP1biVy/2zGNWG/TB5ZZyZMSY4uT+aOpzlqdknb4UsRaSp
 f7MfmB7xEWpS4DJr9RIBrJ/hIdnMu1mNInxDPFo5Kl5HNp4TaPm2dPir2ZD2wMZI
 daURTX7giUhpE15ZebQDBqWD+mTR0bVDqLLeo131JRmMfMEHugNrr49xe+NkBu/R
 QWnFzgkGdQsOeiKRRwEUuhsi74JspqfwzdZzHqcRM5WuXVvBLcA=
 =h01b
 -----END PGP SIGNATURE-----

Merge tag 'nfs-for-5.13-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Highlights include:

  Stable fixes:

   - Add validation of the UDP retrans parameter to prevent shift
     out-of-bounds

   - Don't discard pNFS layout segments that are marked for return

  Bugfixes:

   - Fix a NULL dereference crash in xprt_complete_bc_request() when the
     NFSv4.1 server misbehaves.

   - Fix the handling of NFS READDIR cookie verifiers

   - Sundry fixes to ensure attribute revalidation works correctly when
     the server does not return post-op attributes.

   - nfs4_bitmask_adjust() must not change the server global bitmasks

   - Fix major timeout handling in the RPC code.

   - NFSv4.2 fallocate() fixes.

   - Fix the NFSv4.2 SEEK_HOLE/SEEK_DATA end-of-file handling

   - Copy offload attribute revalidation fixes

   - Fix an incorrect filehandle size check in the pNFS flexfiles driver

   - Fix several RDMA transport setup/teardown races

   - Fix several RDMA queue wrapping issues

   - Fix a misplaced memory read barrier in sunrpc's call_decode()

  Features:

   - Micro optimisation of the TCP transmission queue using TCP_CORK

   - statx() performance improvements by further splitting up the
     tracking of invalid cached file metadata.

   - Support the NFSv4.2 'change_attr_type' attribute and use it to
     optimise handling of change attribute updates"

* tag 'nfs-for-5.13-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (85 commits)
  xprtrdma: Fix a NULL dereference in frwr_unmap_sync()
  sunrpc: Fix misplaced barrier in call_decode
  NFSv4.2: Remove ifdef CONFIG_NFSD from NFSv4.2 client SSC code.
  xprtrdma: Move fr_mr field to struct rpcrdma_mr
  xprtrdma: Move the Work Request union to struct rpcrdma_mr
  xprtrdma: Move fr_linv_done field to struct rpcrdma_mr
  xprtrdma: Move cqe to struct rpcrdma_mr
  xprtrdma: Move fr_cid to struct rpcrdma_mr
  xprtrdma: Remove the RPC/RDMA QP event handler
  xprtrdma: Don't display r_xprt memory addresses in tracepoints
  xprtrdma: Add an rpcrdma_mr_completion_class
  xprtrdma: Add tracepoints showing FastReg WRs and remote invalidation
  xprtrdma: Avoid Send Queue wrapping
  xprtrdma: Do not wake RPC consumer on a failed LocalInv
  xprtrdma: Do not recycle MR after FastReg/LocalInv flushes
  xprtrdma: Clarify use of barrier in frwr_wc_localinv_done()
  xprtrdma: Rename frwr_release_mr()
  xprtrdma: rpcrdma_mr_pop() already does list_del_init()
  xprtrdma: Delete rpcrdma_recv_buffer_put()
  xprtrdma: Fix cwnd update ordering
  ...
2021-05-07 11:23:41 -07:00
Linus Torvalds
e22e983279 9p for 5.13-rc1
an error handling fix and const optimization
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE/IPbcYBuWt0zoYhOq06b7GqY5nAFAmCVJa4ACgkQq06b7GqY
 5nDUwxAAkBS34dEfhWgENugMY73Rj1sZ7VAN6HqpT9+7KrQHPXSfCnVac+q1/JzA
 KuWg1zJaUeYt8VyDMUDPR4l4u6X7NM7ED7qwYlVolP4zfRtYgvo7ZbGHTqryV6wl
 A0/TIznPAYphOWYqiLPbtuUfmDYQedsGR8CC55jR3FIA0JBMj28b7m5aSSigDUU0
 SX5Erkq6PPRT5yAStPQBhwcpckceo+cVpfdO+9llZ35BfZVxdhMKudU54XIOiwX6
 1AJk+naHeLN4cCZJeWiiMHMKfBdylAJV2/dG0Po2SRo2nsytTC1eCRSvMtqZOf3m
 T0cEM6LFJgiqvG0c3w2At1ZkhDTZmyKapMgexRMsuxWhy3InAvfpXIurGuLkdI5T
 J99cd+LDp5bvH8u3tk3QSzYWp3ZACaW16X4rlV+iBk9huA0EiSHNVdTGU8tvEkPj
 s9gQPgIzgxdkDZmzTvsJDiPASORblJiLdmuvz4vojRey7Bqr/1ilZ2cnX/OjDA6p
 d4K73VWG3YSecm63mpfv8KCxAFUaQT09/oPBNDIJ/SYZTOUaunoBse3EOvUkX5Od
 Ar2ehkPOt9Q8Gu3N2F194Rd30vbADiYMezPkTdY0NdJXI6sUUa2SJj0nEsbMqNIg
 wauDYYzyuRp+k0J6+Oj3tVH074a8/q6trPzuA6C5MuyPx/kgJ00=
 =B3Ef
 -----END PGP SIGNATURE-----

Merge tag '9p-for-5.13-rc1' of git://github.com/martinetd/linux

Pull 9p updates from Dominique Martinet:
 "An error handling fix and constification"

* tag '9p-for-5.13-rc1' of git://github.com/martinetd/linux:
  fs: 9p: fix v9fs_file_open writeback fid error check
  9p: Constify static struct v9fs_attr_group
2021-05-07 11:18:52 -07:00
Linus Torvalds
a48b0872e6 Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton:
 "This is everything else from -mm for this merge window.

  90 patches.

  Subsystems affected by this patch series: mm (cleanups and slub),
  alpha, procfs, sysctl, misc, core-kernel, bitmap, lib, compat,
  checkpatch, epoll, isofs, nilfs2, hpfs, exit, fork, kexec, gcov,
  panic, delayacct, gdb, resource, selftests, async, initramfs, ipc,
  drivers/char, and spelling"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (90 commits)
  mm: fix typos in comments
  mm: fix typos in comments
  treewide: remove editor modelines and cruft
  ipc/sem.c: spelling fix
  fs: fat: fix spelling typo of values
  kernel/sys.c: fix typo
  kernel/up.c: fix typo
  kernel/user_namespace.c: fix typos
  kernel/umh.c: fix some spelling mistakes
  include/linux/pgtable.h: few spelling fixes
  mm/slab.c: fix spelling mistake "disired" -> "desired"
  scripts/spelling.txt: add "overflw"
  scripts/spelling.txt: Add "diabled" typo
  scripts/spelling.txt: add "overlfow"
  arm: print alloc free paths for address in registers
  mm/vmalloc: remove vwrite()
  mm: remove xlate_dev_kmem_ptr()
  drivers/char: remove /dev/kmem for good
  mm: fix some typos and code style problems
  ipc/sem.c: mundane typo fixes
  ...
2021-05-07 00:34:51 -07:00
Masahiro Yamada
fa60ce2cb4 treewide: remove editor modelines and cruft
The section "19) Editor modelines and other cruft" in
Documentation/process/coding-style.rst clearly says, "Do not include any
of these in source files."

I recently receive a patch to explicitly add a new one.

Let's do treewide cleanups, otherwise some people follow the existing code
and attempt to upstream their favoriate editor setups.

It is even nicer if scripts/checkpatch.pl can check it.

If we like to impose coding style in an editor-independent manner, I think
editorconfig (patch [1]) is a saner solution.

[1] https://lore.kernel.org/lkml/20200703073143.423557-1-danny@kdrag0n.dev/

Link: https://lkml.kernel.org/r/20210324054457.1477489-1-masahiroy@kernel.org
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>	[auxdisplay]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-05-07 00:26:34 -07:00
dingsenjie
a109ae2a02 fs: fat: fix spelling typo of values
vaules -> values

Link: https://lkml.kernel.org/r/20210302034817.30384-1-dingsenjie@163.com
Signed-off-by: dingsenjie <dingsenjie@yulong.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-05-07 00:26:34 -07:00