iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/fs
History
Davidlohr Bueso 74bdc12985 fs/epoll: remove max_nests argument from ep_call_nested() 
Patch series "epoll: some miscellaneous optimizations".

The following are some incremental optimizations on some of the epoll
core.  Each patch has the details, but together, the series is seen to
shave off measurable cycles on a number of systems and workloads.

For example, on a 40-core IB, a pipetest as well as parallel
epoll_wait() benchmark show around a 20-30% increase in raw operations
per second when the box is fully occupied (incremental thread counts),
and up to 15% performance improvement with lower counts.

Passes ltp epoll related testcases.

This patch(of 6):

All callers pass the EP_MAX_NESTS constant already, so lets simplify
this a tad and get rid of the redundant parameter for nested eventpolls.

Link: http://lkml.kernel.org/r/20181108051006.18751-2-dave@stgolabs.net
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Jason Baron <jbaron@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-04 13:13:46 -08:00
..
9p
Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-11-01 19:58:52 -07:00
adfs
adfs: use timespec64 for time conversion
2018-08-22 10:52:51 -07:00
affs
affs: fix potential memory leak when parsing option 'prefix'
2018-05-28 12:36:41 +02:00
afs
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-11-30 10:47:50 -08:00
autofs
Merge branch 'akpm' (patches from Andrew)
2018-08-22 12:34:08 -07:00
befs
fix a series of Documentation/ broken file name references
2018-06-15 18:10:01 -03:00
bfs
bfs: add sanity check at bfs_fill_super()
2018-11-03 10:09:38 -07:00
btrfs
btrfs: Fix typos in comments and strings
2018-12-17 14:51:50 +01:00
cachefiles
fscache, cachefiles: remove redundant variable 'cache'
2018-11-30 16:00:58 +00:00
ceph
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
cifs
4 fixes for stable, improvements to DFS including allowing failover to alternate targets, and some small performance improvements
2019-01-02 12:08:29 -08:00
coda
vfs: change inode times to use struct timespec64
2018-06-05 16:57:31 -07:00
configfs
configfs: fix registered group removal
2018-07-17 06:14:07 -07:00
cramfs
Make the Cramfs code more robust against filesystem corruptions,
2018-10-30 12:46:25 -07:00
crypto
crypto: speck - remove Speck
2018-09-04 11:35:03 +08:00
debugfs
Revert "debugfs: inode: debugfs_create_dir uses mode permission from parent"
2018-06-12 20:52:16 -07:00
devpts
devpts: Convert to new IDA API
2018-08-21 23:54:17 -04:00
dlm
dlm: fix invalid cluster name warning
2018-12-03 15:30:24 -06:00
ecryptfs
ecryptfs_rename(): verify that lower dentries are still OK after lock_rename()
2018-10-09 23:33:17 -04:00
efivarfs
efivars: Call guid_parse() against guid_t type of variable
2018-07-22 14:13:44 +02:00
efs
…
exofs
fs/exofs: only use true/false for asignment of bool type variable
2018-10-18 02:04:59 -04:00
exportfs
exportfs: do not read dentry after free
2018-11-23 09:08:17 -05:00
ext2
\n
2018-12-27 17:00:35 -08:00
ext4
for-4.21/block-20181221
2018-12-28 13:19:59 -08:00
f2fs
f2fs-for-4.21-rc1
2018-12-31 09:41:37 -08:00
fat
fat: truncate inode timestamp updates in setattr
2018-10-31 08:54:14 -07:00
freevxfs
freevxfs_lookup(): use d_splice_alias()
2018-05-22 14:27:51 -04:00
fscache
fscache: fix race between enablement and dropping of object
2018-11-30 15:57:31 +00:00
fuse
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
gfs2
File locking changes for v4.21
2018-12-27 17:12:30 -08:00
hfs
hfs: do not free node before using
2018-11-30 14:56:14 -08:00
hfsplus
hfsplus: do not free node before using
2018-11-30 14:56:14 -08:00
hostfs
vfs: discard ATTR_ATTR_FLAG
2018-08-17 16:20:28 -07:00
hpfs
hpfs: remove unnecessary checks on the value of r when assigning error code
2018-08-25 12:42:33 -07:00
hugetlbfs
hugetlbfs: Use i_mmap_rwsem to fix page fault/truncate race
2018-12-28 12:11:52 -08:00
isofs
Update email address
2018-09-29 22:47:48 -04:00
jbd2
jbd2: clean up indentation issue, replace spaces with tab
2018-12-04 00:20:10 -05:00
jffs2
jffs2: Fix use of uninitialized delayed_work, lockdep breakage
2018-12-02 09:20:34 +01:00
jfs
jfs: remove redundant dquot_initialize() in jfs_evict_inode()
2018-09-20 09:28:49 -05:00
kernfs
kernfs: Improve kernfs_notify() poll notification latency
2018-11-27 11:59:33 +01:00
lockd
NFS client updates for Linux 4.21
2019-01-02 16:35:23 -08:00
minix
minix_lookup: use d_splice_alias()
2018-05-22 14:27:52 -04:00
nfs
NFS client updates for Linux 4.21
2019-01-02 16:35:23 -08:00
nfs_common
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
nfsd
NFS client updates for Linux 4.21
2019-01-02 16:35:23 -08:00
nilfs2
nilfs2: Use xa_erase_irq
2018-11-05 14:57:05 -05:00
nls
…
notify
fanotify: Use inode_is_open_for_write
2018-12-11 10:55:45 +01:00
ntfs
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
ocfs2
ocfs2: don't clear bh uptodate for block read
2018-12-28 12:11:46 -08:00
omfs
omfs_lookup(): report IO errors, use d_splice_alias()
2018-05-22 14:27:58 -04:00
openpromfs
fs/openpromfs: Use of_node_name_eq for node name comparisons
2018-11-18 13:35:19 -08:00
orangefs
Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-11-01 19:58:52 -07:00
overlayfs
Revert "ovl: relax permission checking on underlying layers"
2018-12-04 11:31:30 +01:00
proc
fs/proc/base.c: slightly faster /proc/*/limits
2019-01-04 13:13:45 -08:00
pstore
pstore/ram: Avoid NULL deref in ftrace merging failure path
2018-12-03 17:11:02 -08:00
qnx4
qnx4_lookup: use d_splice_alias()
2018-05-22 14:27:52 -04:00
qnx6
qnx6_lookup: switch to d_splice_alias()
2018-05-22 14:27:54 -04:00
quota
quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls.
2018-12-18 18:29:15 +01:00
ramfs
…
reiserfs
reiserfs: remove workaround code for GCC 3.x
2018-10-31 08:54:14 -07:00
romfs
romfs_lookup: switch to d_splice_alias()
2018-05-22 14:27:55 -04:00
squashfs
Squashfs: Compute expected length from inode size rather than block length
2018-08-02 09:34:02 -07:00
sysfs
sysfs: constify sysfs create/remove files harder
2018-12-03 18:18:19 +02:00
sysv
sysv: return 'err' instead of 0 in __sysv_write_inode
2018-11-10 08:02:40 -05:00
tracefs
tracefs: Annotate tracefs_ops with __ro_after_init
2018-07-31 11:32:44 -04:00
ubifs
mm: migrate: drop unused argument of migrate_page_move_mapping()
2018-12-28 12:11:51 -08:00
udf
\n
2018-12-27 17:00:35 -08:00
ufs
fs/ufs: use ktime_get_real_seconds for sb and cg timestamps
2018-08-17 16:20:27 -07:00
xfs
xfs: reallocate realtime summary cache on growfs
2018-12-21 18:45:18 -08:00
aio.c
Merge branch 'akpm' (patches from Andrew)
2018-12-28 16:55:46 -08:00
anon_inodes.c
anon_inode_getfile(): switch to alloc_file_pseudo()
2018-07-12 10:04:27 -04:00
attr.c
fs: Fix attr.c kernel-doc
2018-07-03 16:44:45 -04:00
bad_inode.c
get rid of 'opened' argument of ->atomic_open() - part 3
2018-07-12 10:04:20 -04:00
binfmt_aout.c
exec: introduce finalize_exec() before start_thread()
2018-04-11 10:28:37 -07:00
binfmt_elf_fdpic.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
binfmt_elf.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
binfmt_em86.c
…
binfmt_flat.c
exec: introduce finalize_exec() before start_thread()
2018-04-11 10:28:37 -07:00
binfmt_misc.c
turn filp_clone_open() into inline wrapper for dentry_open()
2018-07-10 23:29:03 -04:00
binfmt_script.c
…
block_dev.c
block: don't use un-ordered __set_current_state(TASK_UNINTERRUPTIBLE)
2019-01-02 10:46:03 -08:00
buffer.c
blkcg: associate writeback bios with a blkg
2018-12-07 22:26:37 -07:00
char_dev.c
block, char_dev: Use correct format specifier for unsigned ints
2018-03-15 17:59:24 +01:00
compat_binfmt_elf.c
y2038: globally rename compat_time to old_time32
2018-08-27 14:48:48 +02:00
compat_ioctl.c
media updates for v4.20-rc1
2018-10-29 14:29:58 -07:00
compat.c
ncpfs: remove compat functionality
2018-06-05 19:23:26 +02:00
coredump.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
d_path.c
split d_path() and friends into a separate file
2018-03-29 15:07:46 -04:00
dax.c
dax fix 4.21
2018-12-31 09:46:39 -08:00
dcache.c
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
dcookies.c
fs: add do_lookup_dcookie() helper; remove in-kernel call to syscall
2018-04-02 20:15:39 +02:00
direct-io.c
Linux 4.20-rc5
2018-12-04 09:38:05 -07:00
drop_caches.c
…
eventfd.c
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
eventpoll.c
fs/epoll: remove max_nests argument from ep_call_nested()
2019-01-04 13:13:46 -08:00
exec.c
Revert "exec: make de_thread() freezable"
2018-12-04 16:04:20 +01:00
fcntl.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
fhandle.c
vfs: Copy struct mount.mnt_id to userspace using put_user()
2018-01-15 12:07:51 -08:00
file_table.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
file.c
Char/Misc driver patches for 4.21-rc1
2018-12-28 20:54:57 -08:00
filesystems.c
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
fs: Convert writeback to XArray
2018-10-21 10:46:42 -04:00
inode.c
y2038: more syscalls and cleanups
2018-12-28 12:45:04 -08:00
internal.h
overlayfs update for 4.19
2018-08-21 18:19:09 -07:00
ioctl.c
vfs: rework data cloning infrastructure
2018-11-02 09:33:08 -07:00
iomap.c
block: don't use un-ordered __set_current_state(TASK_UNINTERRUPTIBLE)
2019-01-02 10:46:03 -08:00
Kconfig
autofs: remove left-over autofs4 stubs
2018-06-11 08:22:34 -07:00
Kconfig.binfmt
kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt
2018-08-02 08:06:55 +09:00
libfs.c
fs, dax: prepare for dax-specific address_space_operations
2018-03-30 11:34:55 -07:00
locks.c
locks: Use inode_is_open_for_write
2018-12-17 07:19:46 -05:00
Makefile
autofs: remove left-over autofs4 stubs
2018-06-11 08:22:34 -07:00
mbcache.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
mount.h
…
mpage.c
mpage: mpage_readpages() should submit IO as read-ahead
2018-08-17 16:20:29 -07:00
namei.c
Revert "vfs: Allow userns root to call mknod on owned filesystems."
2018-12-22 14:18:34 -08:00
namespace.c
mnt: fix __detach_mounts infinite loop
2018-11-12 01:02:34 -06:00
no-block.c
…
nsfs.c
net: Export open_related_ns()
2018-02-15 15:34:42 -05:00
open.c
overlayfs update for 4.19
2018-08-21 18:19:09 -07:00
pipe.c
Merge branch 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-08-13 19:58:36 -07:00
pnode.c
…
pnode.h
…
posix_acl.c
…
proc_namespace.c
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
read_write.c
vfs: allow some remap flags to be passed to vfs_clone_file_range
2018-12-04 08:50:49 -08:00
readdir.c
fs: add ksys_getdents64() helper; remove in-kernel calls to sys_getdents64()
2018-04-02 20:16:02 +02:00
select.c
pselect6: use __kernel_timespec
2018-12-06 17:23:18 +01:00
seq_file.c
fs/seq_file.c: simplify seq_file iteration code and interface
2018-08-17 16:20:28 -07:00
signalfd.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
splice.c
splice: don't read more than available pipe space
2018-12-04 08:50:49 -08:00
stack.c
…
stat.c
y2038: Remove newstat family from default syscall set
2018-08-29 15:42:20 +02:00
statfs.c
kernel: add kcompat_sys_{f,}statfs64()
2018-07-12 14:49:48 +01:00
super.c
fsnotify: add super block object type
2018-09-03 15:14:01 +02:00
sync.c
Changes for this release:
2018-04-04 12:44:02 -07:00
timerfd.c
y2038: globally rename compat_time to old_time32
2018-08-27 14:48:48 +02:00
userfaultfd.c
userfaultfd: clear flag if remap event not enabled
2018-12-28 12:11:51 -08:00
utimes.c
y2038: utimes: Rework #ifdef guards for compat syscalls
2018-08-29 15:42:23 +02:00
xattr.c
sysfs: Do not return POSIX ACL xattrs via listxattr
2018-09-18 07:30:48 -04:00