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linux/fs/cifs
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Steve French 491eafce1a smb3: fix unusable share after force unmount failure 
If user does forced unmount ("umount -f") while files are still open
on the share (as was seen in a Kubernetes example running on SMB3.1.1
mount) then we were marking the share as "TID_EXITING" in umount_begin()
which caused all subsequent operations (except write) to fail ... but
unfortunately when umount_begin() is called we do not know yet that
there are open files or active references on the share that would prevent
unmount from succeeding.  Kubernetes had example when they were doing
umount -f when files were open which caused the share to become
unusable until the files were closed (and the umount retried).

Fix this so that TID_EXITING is not set until we are about to send
the tree disconnect (not at the beginning of forced umounts in
umount_begin) so that if "umount -f" fails (due to open files or
references) the mount is still usable.

Cc: stable@vger.kernel.org
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-03-24 14:37:12 -05:00
..
asn1.c cifs: decoding negTokenInit with generic ASN1 decoder 2021-06-20 21:28:17 -05:00
cached_dir.c cifs: fix dentry lookups in directory handle cache 2023-03-24 14:37:12 -05:00
cached_dir.h cifs: drop the lease for cached directories on rmdir or rename 2022-10-19 17:57:41 -05:00
cifs_debug.c cifs: print session id while listing open files 2023-03-23 11:19:42 -05:00
cifs_debug.h smb3: add dynamic trace points for tree disconnect 2022-10-05 01:31:18 -05:00
cifs_dfs_ref.c cifs: set DFS root session in cifs_get_smb_ses() 2023-03-14 21:05:53 -05:00
cifs_fs_sb.h cifs: fix use-after-free bug in refresh_cache_worker() 2023-03-14 21:07:44 -05:00
cifs_ioctl.h cifs: minor cleanup of some headers 2022-12-12 13:08:06 -06:00
cifs_spnego_negtokeninit.asn1 cifs: decoding negTokenInit with generic ASN1 decoder 2021-06-20 21:28:17 -05:00
cifs_spnego.c cred: Do not default to init_cred in prepare_kernel_cred() 2022-11-01 10:04:52 -07:00
cifs_spnego.h cifs: Replace remaining 1-element arrays 2023-02-20 11:48:48 -06:00
cifs_swn.c smb3: add dynamic trace points for tree disconnect 2022-10-05 01:31:18 -05:00
cifs_swn.h cifs: simplify SWN code with dummy funcs instead of ifdefs 2021-04-25 16:28:22 -05:00
cifs_unicode.c cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
cifs_unicode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifs_uniupr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifsacl.c 46 fs/cifs (smb3 client) changesets, 37 in fs/cifs and 9 for related helper functions and cleanup outside from Dave Howells and Willy 2023-02-22 17:12:44 -08:00
cifsacl.h cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
cifsencrypt.c cifs: Change the I/O paths to use an iterator rather than a page list 2023-02-20 18:36:02 -06:00
cifsfs.c smb3: fix unusable share after force unmount failure 2023-03-24 14:37:12 -05:00
cifsfs.h 46 fs/cifs (smb3 client) changesets, 37 in fs/cifs and 9 for related helper functions and cleanup outside from Dave Howells and Willy 2023-02-22 17:12:44 -08:00
cifsglob.h cifs: fix use-after-free bug in refresh_cache_worker() 2023-03-14 21:07:44 -05:00
cifspdu.h cifs: Replace remaining 1-element arrays 2023-02-20 11:48:48 -06:00
cifsproto.h cifs: prevent data race in cifs_reconnect_tcon() 2023-03-01 18:18:25 -06:00
cifsroot.c cifs: move from strlcpy with unused retval to strscpy 2022-08-19 11:02:26 -05:00
cifssmb.c smb3: fix unusable share after force unmount failure 2023-03-24 14:37:12 -05:00
connect.c smb3: fix unusable share after force unmount failure 2023-03-24 14:37:12 -05:00
dfs_cache.c cifs: check only tcon status on tcon related functions 2023-03-17 13:22:22 -05:00
dfs_cache.h cifs: fix use-after-free bug in refresh_cache_worker() 2023-03-14 21:07:44 -05:00
dfs.c cifs: check only tcon status on tcon related functions 2023-03-17 13:22:22 -05:00
dfs.h cifs: fix use-after-free bug in refresh_cache_worker() 2023-03-14 21:07:44 -05:00
dir.c 46 fs/cifs (smb3 client) changesets, 37 in fs/cifs and 9 for related helper functions and cleanup outside from Dave Howells and Willy 2023-02-22 17:12:44 -08:00
dns_resolve.c cifs: set resolved ip in sockaddr 2022-12-19 08:03:11 -06:00
dns_resolve.h cifs: set resolved ip in sockaddr 2022-12-19 08:03:11 -06:00
export.c cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
file.c cifs: check only tcon status on tcon related functions 2023-03-17 13:22:22 -05:00
fs_context.c cifs: share dfs connections and supers 2022-12-19 08:03:12 -06:00
fs_context.h smb3: lower default deferred close timeout to address perf regression 2023-03-24 14:37:12 -05:00
fscache.c 46 fs/cifs (smb3 client) changesets, 37 in fs/cifs and 9 for related helper functions and cleanup outside from Dave Howells and Willy 2023-02-22 17:12:44 -08:00
fscache.h cifs: Change the I/O paths to use an iterator rather than a page list 2023-02-20 18:36:02 -06:00
inode.c 46 fs/cifs (smb3 client) changesets, 37 in fs/cifs and 9 for related helper functions and cleanup outside from Dave Howells and Willy 2023-02-22 17:12:44 -08:00
ioctl.c cifs: Fix wrong return value checking when GETFLAGS 2022-11-16 00:21:04 -06:00
Kconfig cifs: Change the I/O paths to use an iterator rather than a page list 2023-02-20 18:36:02 -06:00
link.c cifs: append path to open_enter trace event 2023-03-24 09:02:26 -05:00
Makefile cifs: get rid of mount options string parsing 2022-12-19 08:03:11 -06:00
misc.c cifs: use DFS root session instead of tcon ses 2023-03-14 22:48:53 -05:00
netlink.c genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
netlink.h cifs: Register generic netlink family 2020-12-14 09:16:22 -06:00
netmisc.c cifs: remove unused server parameter from calc_smb_size() 2022-08-17 18:07:13 -05:00
nterr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
nterr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ntlmssp.h cifs: Replace zero-length arrays with flexible-array members 2023-02-20 11:48:47 -06:00
readdir.c cifs: Replace remaining 1-element arrays 2023-02-20 11:48:48 -06:00
rfc1002pdu.h cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
sess.c cifs: get rid of dns resolve worker 2023-02-20 17:25:43 -06:00
smb1ops.c cifs: Fix uninitialized memory reads for oparms.mode 2023-02-20 11:48:48 -06:00
smb2file.c 46 fs/cifs (smb3 client) changesets, 37 in fs/cifs and 9 for related helper functions and cleanup outside from Dave Howells and Willy 2023-02-22 17:12:44 -08:00
smb2glob.h smb3: move defines for ioctl protocol header and SMB2 sizes to smbfs_common 2022-03-26 23:09:20 -05:00
smb2inode.c cifs: append path to open_enter trace event 2023-03-24 09:02:26 -05:00
smb2maperror.c cifs: Create a new shared file holding smb2 pdu definitions 2021-11-05 09:50:57 -05:00
smb2misc.c smb3: Replace smb2pdu 1-element arrays with flex-arrays 2023-02-20 17:25:43 -06:00
smb2ops.c cifs: append path to open_enter trace event 2023-03-24 09:02:26 -05:00
smb2pdu.c smb3: fix unusable share after force unmount failure 2023-03-24 14:37:12 -05:00
smb2pdu.h smb3: Replace smb2pdu 1-element arrays with flex-arrays 2023-02-20 17:25:43 -06:00
smb2proto.h cifs: Parse owner/group for stat in smb311 posix extensions 2022-12-08 09:51:53 -06:00
smb2status.h cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
smb2transport.c cifs: avoid race conditions with parallel reconnects 2023-03-24 09:03:55 -05:00
smbdirect.c cifs: Fix an uninitialised variable 2023-03-01 18:17:36 -06:00
smbdirect.h cifs: Build the RDMA SGE list directly from an iterator 2023-02-20 18:36:02 -06:00
smbencrypt.c cifs: rename cifs_common to smbfs_common 2021-09-08 23:59:26 -05:00
smberr.h cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
trace.c
trace.h cifs: append path to open_enter trace event 2023-03-24 09:02:26 -05:00
transport.c cifs: Move the in_send statistic to __smb_send_rqst() 2023-03-05 17:50:38 -06:00
unc.c cifs: don't cargo-cult strndup() 2021-04-25 16:28:23 -05:00
winucase.c cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
xattr.c fs: port xattr to mnt_idmap 2023-01-19 09:24:28 +01:00