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09c40b1535
linux/fs/cifs
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Ronnie Sahlberg 09c40b1535 cifs: fix soft mounts hanging in the reconnect code 
RHBZ: 1795423

This is the SMB1 version of a patch we already have for SMB2

In recent DFS updates we have a new variable controlling how many times we will
retry to reconnect the share.
If DFS is not used, then this variable is initialized to 0 in:

static inline int
dfs_cache_get_nr_tgts(const struct dfs_cache_tgt_list *tl)
{
        return tl ? tl->tl_numtgts : 0;
}

This means that in the reconnect loop in smb2_reconnect() we will immediately wrap retries to -1
and never actually get to pass this conditional:

                if (--retries)
                        continue;

The effect is that we no longer reach the point where we fail the commands with -EHOSTDOWN
and basically the kernel threads are virtually hung and unkillable.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
2020-02-06 09:12:00 -06:00
..
asn1.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cache.c cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
cifs_debug.c cifs: dump channel info in DebugData 2019-11-25 01:17:12 -06:00
cifs_debug.h cifs: add a debug macro that prints \\server\share for errors 2019-09-16 11:43:38 -05:00
cifs_dfs_ref.c cifs: Fix mount options set in automount 2020-01-26 19:24:16 -06:00
cifs_fs_sb.h smb3: add mount option to allow RW caching of share accessed by only 1 client 2019-09-16 11:43:38 -05:00
cifs_ioctl.h smb3: allow decryption keys to be dumped by admin for debugging 2019-09-21 06:02:26 -05:00
cifs_spnego.c cifs: switch servers depending on binding state 2019-11-25 01:16:30 -06:00
cifs_spnego.h
cifs_unicode.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
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 SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
cifsacl.h smb3: fix mode passed in on create for modetosid mount option 2019-12-06 14:15:52 -06:00
cifsencrypt.c fs: cifs: switch to RC4 library interface 2019-06-20 14:19:55 +08:00
cifsfs.c SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
cifsfs.h cifs: update internal module version number 2020-01-31 15:13:22 -06:00
cifsglob.h SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
cifspdu.h smb3: missing defines and structs for reparse point handling 2018-11-02 14:09:41 -05:00
cifsproto.h smb3: fix problem with null cifs super block with previous patch 2020-02-05 06:32:19 -06:00
cifsroot.c cifs: cifsroot: add more err checking 2019-09-16 11:43:39 -05:00
cifssmb.c cifs: fix soft mounts hanging in the reconnect code 2020-02-06 09:12:00 -06:00
connect.c SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
dfs_cache.c cifs: use PTR_ERR_OR_ZERO() to simplify code 2020-01-26 19:24:17 -06:00
dfs_cache.h cifs: Fix DFS cache refresher for DFS links 2019-05-07 23:24:54 -05:00
dir.c SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
dns_resolve.c keys: Pass the network namespace into request_key mechanism 2019-06-27 23:02:12 +01:00
dns_resolve.h
export.c docs: fs: convert docs without extension to ReST 2019-07-31 13:31:05 -06:00
file.c cifs: Add tracepoints for errors on flush or fsync 2020-02-05 18:24:19 -06:00
fscache.c cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
fscache.h cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
inode.c SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
ioctl.c SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
Kconfig various cifs/smb3 fixes (including for share deleted cases) and features including improved encrypted read performance, and various debugging improvements 2019-09-19 10:32:16 -07:00
link.c SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
Makefile cifs: Add support for root file systems 2019-09-16 11:43:38 -05:00
misc.c CIFS: Properly process SMB3 lease breaks 2019-11-25 01:17:12 -06:00
netmisc.c fs: cifs: mute -Wunused-const-variable message 2019-10-06 22:04:35 -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: dynamic allocation of ntlmssp blob 2016-06-23 23:45:07 -05:00
readdir.c cifs: Optimize readdir on reparse points 2019-12-23 09:04:44 -06:00
rfc1002pdu.h
sess.c cifs: fix possible uninitialized access and race on iface_list 2019-12-04 11:51:18 -06:00
smb1ops.c SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
smb2file.c cifs: Adjust indentation in smb2_open_file 2019-12-23 09:04:44 -06:00
smb2glob.h cifs: change SMB2_OP_RENAME and SMB2_OP_HARDLINK to use compounding 2018-10-23 21:16:04 -05:00
smb2inode.c SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
smb2maperror.c smb3: improve handling of share deleted (and share recreated) 2019-09-16 11:43:38 -05:00
smb2misc.c cifs: Fix memory allocation in __smb2_handle_cancelled_cmd() 2020-01-26 19:24:17 -06:00
smb2ops.c smb3: fix problem with null cifs super block with previous patch 2020-02-05 06:32:19 -06:00
smb2pdu.c cifs: log warning message (once) if out of disk space 2020-02-05 17:58:52 -06:00
smb2pdu.h cifs: prepare SMB2_query_directory to be used with compounding 2020-01-26 19:24:16 -06:00
smb2proto.h SMB3: Backup intent flag missing from some more ops 2020-02-03 16:12:47 -06:00
smb2status.h cifs: don't use __constant_cpu_to_le32() 2019-05-07 23:24:54 -05:00
smb2transport.c CIFS: Fix task struct use-after-free on reconnect 2020-01-26 19:24:17 -06:00
smbdirect.c cifs: smbd: Only queue work for error recovery on memory registration 2019-11-25 01:16:30 -06:00
smbdirect.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
smbencrypt.c fs: cifs: move from the crypto cipher API to the new DES library interface 2019-08-22 14:57:34 +10:00
smberr.h
smbfsctl.h smb3: Add missing reparse tags 2019-09-24 23:31:32 -05:00
trace.c smb3: Cleanup license mess 2019-01-24 09:37:33 -06:00
trace.h cifs: Add tracepoints for errors on flush or fsync 2020-02-05 18:24:19 -06:00
transport.c CIFS: Fix task struct use-after-free on reconnect 2020-01-26 19:24:17 -06:00
winucase.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
xattr.c CIFS: Add support for setting owner info, dos attributes, and create time 2020-01-26 19:24:17 -06:00