linux/fs
Alexander Aring 00f30c051b fs: dlm: add unbound flag to dlm_io workqueue
This patch will add the WQ_UNBOUND flag to the lowcomms dlm_io workqueue
which handles socket io handling to send and receive dlm messages.
The amount of sockets will be 2 for a 3 node cluster. Each socket has
two different workers for doing send and receive work by calling socket
API functionality. Each worker will do their task in order to send dlm
messages in a ordered stream based socket communication. On receive
side the receive buffer will be queued up for an ordered dlm_process
workqueue to parse received dlm messages. The parsing need to be done
currently in an ordered synchronized way because the dlm message processing
is not being made to parse parallel.

After explaining all those workqueue behaviours in lowcomms, the dlm_io
workqueue is only being used for socket handling. Each socket handling
has 2 workers (send and receive). In a 3 cluster node we will end up
with 4 workers. Without the WQ_UNBOUND flag the workers are tight to a
CPU and can never switch, this could be an advantage because local CPU
execution. However with dlm_locktorture testcase I expierenced not all
workers are always in use and my assumption is that some workers are
bound to the same CPU. We should always send or receive when we are
ready to do so, one reason why we disable nigel algorithm on sockets.
We should be safe to do the socket io handling on any CPU which can be
switched during runtime. There is no assumption that the worker stays on
the same CPU. There is no need to respect any workqueue concurrency
model that each worker can only run on one CPU. Lowcomms queue_work()
mechanism has an higher level flag to be sure that it can't schedule
work if the previous worker did not signal it to keep ordered socket
handling. Therefore this patch sets the WQ_UNBOUND flag to allow workers
being executed by any available CPU.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
2023-03-06 15:49:07 -06:00
..
9p 9p patches for 6.3 merge window (part 1) 2023-03-01 08:52:49 -08:00
adfs fs: port ->setattr() to pass mnt_idmap 2023-01-19 09:24:02 +01:00
affs for-6.3/dio-2023-02-16 2023-02-20 14:10:36 -08:00
afs - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
autofs fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
befs
bfs fs: port inode_init_owner() to mnt_idmap 2023-01-19 09:24:28 +01:00
btrfs - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
cachefiles fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
ceph Two small fixes from Xiubo and myself, marked for stable. 2023-03-02 10:48:30 -08:00
cifs cifs: Fix memory leak in direct I/O 2023-03-01 18:18:25 -06:00
coda hardening updates for v6.3-rc1 2023-02-21 11:07:23 -08:00
configfs fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
cramfs fs/cramfs/inode.c: initialize file_ra_state 2023-03-02 21:54:23 -08:00
crypto fsverity updates for 6.3 2023-02-20 12:33:41 -08:00
debugfs ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
devpts
dlm fs: dlm: add unbound flag to dlm_io workqueue 2023-03-06 15:49:07 -06:00
ecryptfs This update includes the following changes: 2023-02-21 18:10:50 -08:00
efivarfs A healthy mix of EFI contributions this time: 2023-02-23 14:41:48 -08:00
efs
erofs - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
exfat Description for this pull request: 2023-03-01 08:42:27 -08:00
exportfs fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
ext2 for-6.3/dio-2023-02-16 2023-02-20 14:10:36 -08:00
ext4 Improve performance for ext4 by allowing multiple process to perform 2023-02-28 09:05:47 -08:00
f2fs f2fs-for-6.3-rc1 2023-02-27 16:18:51 -08:00
fat There is no particular theme here - mainly quick hits all over the tree. 2023-02-23 17:55:40 -08:00
freevxfs There is no particular theme here - mainly quick hits all over the tree. 2023-02-23 17:55:40 -08:00
fscache fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work() 2023-01-30 12:51:54 +00:00
fuse fuse update for 6.3 2023-02-27 09:53:58 -08:00
gfs2 Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
hfs There is no particular theme here - mainly quick hits all over the tree. 2023-02-23 17:55:40 -08:00
hfsplus fs: hfsplus: fix UAF issue in hfsplus_put_super 2023-03-02 21:54:23 -08:00
hostfs This pull request contains the following changes for UML: 2023-03-01 09:13:00 -08:00
hpfs fs: port ->rename() to pass mnt_idmap 2023-01-19 09:24:26 +01:00
hugetlbfs - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
iomap - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
isofs - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
jbd2 Improve performance for ext4 by allowing multiple process to perform 2023-02-28 09:05:47 -08:00
jffs2 This pull request contains updates for JFFS2, UBI and UBIFS 2023-03-01 09:06:51 -08:00
jfs Just one simple sanity check 2023-03-01 08:47:19 -08:00
kernfs Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
ksmbd 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
lockd sysctl-6.3-rc1 2023-02-23 14:16:56 -08:00
minix Merge branch 'work.minix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2023-02-24 19:01:15 -08:00
netfs iov: Fix netfs_extract_user_to_sg() 2023-03-01 18:18:25 -06:00
nfs - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
nfs_common filelock: move file locking definitions to separate header file 2023-01-11 06:52:32 -05:00
nfsd NFSD 6.3 Release Notes 2023-02-22 14:21:40 -08:00
nilfs2 There is no particular theme here - mainly quick hits all over the tree. 2023-02-23 17:55:40 -08:00
nls
notify RCU pull request for v6.3 2023-02-21 10:45:51 -08:00
ntfs There is no particular theme here - mainly quick hits all over the tree. 2023-02-23 17:55:40 -08:00
ntfs3 - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
ocfs2 ocfs2: fix non-auto defrag path not working issue 2023-02-27 17:00:15 -08:00
omfs fs: port inode_init_owner() to mnt_idmap 2023-01-19 09:24:28 +01:00
openpromfs
orangefs - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
overlayfs fs.idmapped.v6.3 2023-02-20 11:53:11 -08:00
proc capability: just use a 'u64' instead of a 'u32[2]' array 2023-03-01 10:01:22 -08:00
pstore pstore updates for v6.2-rc1-fixes 2022-12-23 11:55:54 -08:00
qnx4
qnx6 fs/qnx6: delete unnecessary checks before brelse() 2022-09-11 21:55:07 -07:00
quota RCU pull request for v6.3 2023-02-21 10:45:51 -08:00
ramfs - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
reiserfs - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
romfs mm/nommu: factor out check for NOMMU shared mappings into is_nommu_shared_mapping() 2023-01-18 17:12:56 -08:00
smbfs_common smb3: Replace smb2pdu 1-element arrays with flex-arrays 2023-02-20 17:25:43 -06:00
squashfs revert "squashfs: harden sanity check in squashfs_read_xattr_id_table" 2023-02-03 17:52:25 -08:00
sysfs
sysv Merge branch 'work.sysv' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2023-02-24 19:03:26 -08:00
tracefs fs: port ->mkdir() to pass mnt_idmap 2023-01-19 09:24:26 +01:00
ubifs This pull request contains updates for JFFS2, UBI and UBIFS 2023-03-01 09:06:51 -08:00
udf - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
ufs fs: port inode_init_owner() to mnt_idmap 2023-01-19 09:24:28 +01:00
unicode
vboxsf fs: port ->rename() to pass mnt_idmap 2023-01-19 09:24:26 +01:00
verity fsverity: support verifying data from large folios 2023-01-27 14:46:31 -08:00
xfs New code for 6.3-rc1, part 2: 2023-02-28 16:08:30 -08:00
zonefs zonefs changes for 6.3-rc1 2023-02-22 14:11:54 -08:00
aio.c Merge branch 'mm-hotfixes-stable' into mm-stable 2023-02-10 15:34:48 -08:00
anon_inodes.c
attr.c fs.idmapped.v6.3 2023-02-20 11:53:11 -08:00
bad_inode.c fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
binfmt_elf_fdpic.c elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size} 2023-01-05 15:12:12 +00:00
binfmt_elf_test.c
binfmt_elf.c Linux 6.2-rc6 2023-01-31 15:01:20 +01:00
binfmt_flat.c
binfmt_misc.c binfmt_misc: fix shift-out-of-bounds in check_special_flags 2022-12-02 13:57:04 -08:00
binfmt_script.c
buffer.c - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
char_dev.c chardev: fix error handling in cdev_device_add() 2022-12-02 17:48:59 +01:00
compat_binfmt_elf.c
coredump.c - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
d_path.c
dax.c fsdax: dax_unshare_iter() should return a valid length 2023-02-03 17:52:24 -08:00
dcache.c tmpfile API change 2022-10-10 19:45:17 -07:00
direct-io.c fs: move sb_init_dio_done_wq out of direct-io.c 2023-01-26 10:30:56 -07:00
drop_caches.c
eventfd.c eventfd: provide a eventfd_signal_mask() helper 2022-11-22 06:07:55 -07:00
eventpoll.c eventpoll: add EPOLL_URING_WAKE poll wakeup flag 2022-11-21 07:45:29 -07:00
exec.c - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
fcntl.c fs.idmapped.v6.3 2023-02-20 11:53:11 -08:00
fhandle.c do_sys_name_to_handle(): constify path 2022-09-01 17:36:39 -04:00
file_table.c filelock: move file locking definitions to separate header file 2023-01-11 06:52:32 -05:00
file.c fs: use acquire ordering in __fget_light() 2022-10-31 15:30:11 -04:00
filesystems.c
fs_context.c
fs_parser.c ext4: journal_path mount options should follow links 2022-12-01 10:46:54 -05:00
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c mm: convert mem_cgroup_css_from_page() to mem_cgroup_css_from_folio() 2023-02-02 22:33:19 -08:00
fsopen.c
init.c fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
inode.c fs.idmapped.v6.3 2023-02-20 11:53:11 -08:00
internal.h for-6.3/dio-2023-02-16 2023-02-20 14:10:36 -08:00
ioctl.c fs: port inode_owner_or_capable() to mnt_idmap 2023-01-19 09:24:29 +01:00
Kconfig fs: build the legacy direct I/O code conditionally 2023-01-26 10:30:56 -07:00
Kconfig.binfmt Xtensa updates for v6.1 2022-10-10 14:21:11 -07:00
kernel_read_file.c
libfs.c fs.idmapped.v6.3 2023-02-20 11:53:11 -08:00
locks.c RCU pull request for v6.3 2023-02-21 10:45:51 -08:00
Makefile for-6.3/dio-2023-02-16 2023-02-20 14:10:36 -08:00
mbcache.c ext4: fix deadlock due to mbcache entry corruption 2022-12-08 21:49:25 -05:00
mnt_idmapping.c fs: move mnt_idmap 2023-01-19 09:24:30 +01:00
mount.h
mpage.c - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
namei.c NFSD 6.3 Release Notes 2023-02-22 14:21:40 -08:00
namespace.c Merge branch 'work.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2023-02-24 19:20:07 -08:00
no-block.c
nsfs.c nsfs: repair kernel-doc for ns_match() 2023-01-11 15:47:40 -05:00
open.c vfs: avoid duplicating creds in faccessat if possible 2023-02-27 16:39:19 -08:00
pipe.c
pnode.c pnode: terminate at peers of source 2022-12-21 14:45:25 +01:00
pnode.h
posix_acl.c fs.acl.v6.3 2023-02-20 12:14:33 -08:00
proc_namespace.c
read_write.c iov_iter work; most of that is about getting rid of 2022-12-12 18:29:54 -08:00
readdir.c
remap_range.c fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap 2023-01-19 09:24:29 +01:00
select.c
seq_file.c use less confusing names for iov_iter direction initializers 2022-11-25 13:01:55 -05:00
signalfd.c
splice.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
stack.c
stat.c fs.idmapped.v6.3 2023-02-20 11:53:11 -08:00
statfs.c
super.c for-6.3/dio-2023-02-16 2023-02-20 14:10:36 -08:00
sync.c
sysctls.c
timerfd.c
userfaultfd.c mm: replace vma->vm_flags direct modifications with modifier calls 2023-02-09 16:51:39 -08:00
utimes.c fs.idmapped.v6.3 2023-02-20 11:53:11 -08:00
xattr.c fs.idmapped.v6.3 2023-02-20 11:53:11 -08:00