linux/fs/cifs
Shyam Prasad N d7d7a66aac cifs: avoid use of global locks for high contention data
During analysis of multichannel perf, it was seen that
the global locks cifs_tcp_ses_lock and GlobalMid_Lock, which
were shared between various data structures were causing a
lot of contention points.

With this change, we're breaking down the use of these locks
by introducing new locks at more granular levels. i.e.
server->srv_lock, ses->ses_lock and tcon->tc_lock to protect
the unprotected fields of server, session and tcon structs;
and server->mid_lock to protect mid related lists and entries
at server level.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2022-08-01 01:34:45 -05:00
..
asn1.c cifs: decoding negTokenInit with generic ASN1 decoder 2021-06-20 21:28:17 -05:00
cifs_debug.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
cifs_debug.h cifs: use SPDX-Licence-Identifier 2021-06-20 21:28:17 -05:00
cifs_dfs_ref.c cifs: support nested dfs links over reconnect 2021-11-10 16:30:13 -06:00
cifs_fs_sb.h cifs: support nested dfs links over reconnect 2021-11-10 16:30:13 -06:00
cifs_ioctl.h cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
cifs_spnego_negtokeninit.asn1 cifs: decoding negTokenInit with generic ASN1 decoder 2021-06-20 21:28:17 -05:00
cifs_spnego.c cifs: use the chans_need_reconnect bitmap for reconnect status 2022-01-02 20:38:46 -06:00
cifs_spnego.h cifs: use the chans_need_reconnect bitmap for reconnect status 2022-01-02 20:38:46 -06:00
cifs_swn.c cifs: fix potential deadlock in direct reclaim 2022-06-01 00:03:18 -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 cifs: modefromsids must add an ACE for authenticated users 2022-02-14 09:55:51 -06:00
cifsacl.h cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
cifsencrypt.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
cifsfs.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
cifsfs.h cifs: fix reconnect on smb3 mount types 2022-06-06 01:04:12 -05:00
cifsglob.h cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
cifspdu.h smb3: move defines for query info and query fsinfo to smbfs_common 2022-03-26 23:09:51 -05:00
cifsproto.h cifs: periodically query network interfaces from server 2022-06-22 19:51:43 -05:00
cifsroot.c cifs: Standardize logging output 2020-06-01 00:10:18 -05:00
cifssmb.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
connect.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
dfs_cache.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
dfs_cache.h cifs: support share failover when remounting 2021-07-22 11:43:23 -05:00
dir.c cifs: Support fscache indexing rewrite 2022-01-19 11:21:08 -06:00
dns_resolve.c cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
dns_resolve.h cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
export.c cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
file.c cifs: list_for_each() -> list_for_each_entry() 2022-08-01 01:34:44 -05:00
fs_context.c cifs: fix ntlmssp on old servers 2022-05-25 07:41:22 -05:00
fs_context.h cifs: fix ntlmssp on old servers 2022-05-25 07:41:22 -05:00
fscache.c netfs: Fix gcc-12 warning by embedding vfs inode in netfs_i_context 2022-06-09 13:55:00 -07:00
fscache.h netfs: Further cleanups after struct netfs_inode wrapper introduced 2022-06-10 20:55:21 +01:00
inode.c cifs: remove unnecessary type castings 2022-08-01 01:34:44 -05:00
ioctl.c cifs: fix incorrect kernel doc comments 2021-09-13 18:29:46 -05:00
Kconfig cifs: Support fscache indexing rewrite 2022-01-19 11:21:08 -06:00
link.c cifs: potential buffer overflow in handling symlinks 2022-04-13 12:00:49 -05:00
Makefile cifs: do not build smb1ops if legacy support is disabled 2022-06-01 21:49:27 -05:00
misc.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
netlink.c cifs: Constify static struct genl_ops 2021-06-20 21:28:16 -05:00
netlink.h cifs: Register generic netlink family 2020-12-14 09:16:22 -06:00
netmisc.c cifs: remove unnecessary type castings 2022-08-01 01:34:44 -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 treewide: Replace zero-length arrays with flexible-array members 2022-02-17 07:00:39 -06:00
readdir.c smb3: remove unneeded null check in cifs_readdir 2022-05-27 12:05:47 -05:00
rfc1002pdu.h cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
sess.c cifs: fix race condition with delayed threads 2022-07-12 10:35:13 -05:00
smb1ops.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
smb2file.c cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
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: set the CREATE_NOT_FILE when opening the directory in use_cached_dir() 2022-05-21 12:23:24 -05:00
smb2maperror.c cifs: Create a new shared file holding smb2 pdu definitions 2021-11-05 09:50:57 -05:00
smb2misc.c smb2: small refactor in smb2_check_message() 2022-08-01 01:34:44 -05:00
smb2ops.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
smb2pdu.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
smb2pdu.h Add various fsctl structs 2022-05-23 20:24:12 -05:00
smb2proto.h cifs: convert the path to utf16 in smb2_query_info_compound 2022-03-23 15:17:22 -05:00
smb2status.h cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
smb2transport.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
smbdirect.c cifs: fix potential deadlock in direct reclaim 2022-06-01 00:03:18 -05:00
smbdirect.h cifs: smbd: Do not schedule work to send immediate packet on every receive 2020-04-07 12:41:16 -05:00
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 smb3: Cleanup license mess 2019-01-24 09:37:33 -06:00
trace.h smb3: add trace point for SMB2_set_eof 2022-06-16 18:07:10 -05:00
transport.c cifs: avoid use of global locks for high contention data 2022-08-01 01:34:45 -05:00
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 cifs: fix set of group SID via NTSD xattrs 2022-02-13 14:56:34 -06:00