Jan Kara 5052b069ac jbd2: fix dbench4 performance regression for 'nobarrier' mounts ... Commit b685d3d65a "block: treat REQ_FUA and REQ_PREFLUSH as synchronous" removed REQ_SYNC flag from WRITE_FUA implementation. Since JBD2 strips REQ_FUA and REQ_FLUSH flags from submitted IO when the filesystem is mounted with nobarrier mount option, journal superblock writes ended up being async writes after this patch and that caused heavy performance regression for dbench4 benchmark with high number of processes. In my test setup with HP RAID array with non-volatile write cache and 32 GB ram, dbench4 runs with 8 processes regressed by ~25%. Fix the problem by making sure journal superblock writes are always treated as synchronous since they generally block progress of the journalling machinery and thus the whole filesystem. Fixes: b685d3d65a CC: stable@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2017-04-29 21:07:30 -04:00
..
9p	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 21:44:35 -08:00
adfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
affs	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
afs	afs: Don't wait for page writeback with the page lock held	2017-03-16 16:29:30 +00:00
autofs4	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
befs	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
bfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
btrfs	Merge branch 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2017-03-31 17:58:48 -07:00
cachefiles	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
ceph	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
cifs	Reset TreeId to zero on SMB2 TREE_CONNECT	2017-04-07 08:04:41 -05:00
coda	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
configfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
cramfs
crypto	A code cleanup and bugfix for fs/crypto.	2017-03-25 15:36:56 -07:00
debugfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2017-02-23 20:33:51 -08:00
devpts	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
dlm	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
ecryptfs	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
efivarfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
efs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
exofs	locking/atomic, kref: Add kref_read()	2017-01-14 11:37:18 +01:00
exportfs	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
ext2	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
ext4	statx: Include a mask for stx_attributes in struct statx	2017-04-03 01:06:00 -04:00
f2fs	f2fs: combine nat_bits and free_nid_bitmap cache	2017-03-20 10:00:18 -04:00
fat	fat: fix using uninitialized fields of fat_inode/fsinfo_inode	2017-03-09 17:01:10 -08:00
freevxfs
fscache	KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload()	2017-03-02 10:09:00 +11:00
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse	2017-03-03 12:14:13 -08:00
gfs2	gfs2: Avoid alignment hole in struct lm_lockname	2017-03-15 10:06:07 -04:00
hfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 21:44:35 -08:00
hfsplus	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
hostfs	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
hpfs	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
hugetlbfs	hugetlbfs: initialize shared policy as part of inode allocation	2017-03-31 17:13:30 -07:00
isofs	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
jbd2	jbd2: fix dbench4 performance regression for 'nobarrier' mounts	2017-04-29 21:07:30 -04:00
jffs2	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
jfs	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
kernfs	kernfs: Check KERNFS_HAS_RELEASE before calling kernfs_release_file()	2017-03-17 10:25:59 +09:00
lockd	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
minix	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
ncpfs	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
nfs	NFS client fixes for 4.11 (part 2)	2017-03-31 12:29:03 -07:00
nfs_common	netns: make struct pernet_operations::id unsigned int	2016-11-18 10:59:15 -05:00
nfsd	NFSD: fix nfsd_reset_versions for NFSv4.	2017-03-10 17:04:50 -05:00
nilfs2	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
nls
notify	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
ntfs	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
ocfs2	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
omfs	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
openpromfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
orangefs	orangefs: move features validation to fix filesystem hang	2017-04-07 13:41:22 -07:00
overlayfs	overlayfs: remove now unnecessary header file include	2017-03-08 10:42:13 -08:00
proc	sysctl: add sanity check for proc_douintvec	2017-04-07 09:46:44 -07:00
pstore	fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version	2017-02-24 17:46:57 -08:00
qnx4
qnx6
quota	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
ramfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
reiserfs	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
romfs	romfs: use different way to generate fsid for BLOCK or MTD	2017-01-24 16:26:14 -08:00
squashfs	fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version	2017-02-24 17:46:57 -08:00
sysfs	sysfs: be careful of error returns from ops->show()	2017-04-08 17:33:32 +02:00
sysv	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
tracefs
ubifs	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
udf	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
ufs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-04-09 08:26:21 -07:00
aio.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
anon_inodes.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
attr.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
bad_inode.c	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
binfmt_aout.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
binfmt_elf_fdpic.c	sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>	2017-03-02 08:42:39 +01:00
binfmt_elf.c	sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>	2017-03-02 08:42:39 +01:00
binfmt_em86.c
binfmt_flat.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
binfmt_misc.c	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
binfmt_script.c
block_dev.c	block: Initialize bd_bdi on inode initialization	2017-03-02 08:56:59 -07:00
buffer.c	sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency	2017-03-02 08:42:37 +01:00
char_dev.c
compat_binfmt_elf.c	fs/binfmt: Convert obsolete cputime type to nsecs	2017-02-01 09:13:51 +01:00
compat_ioctl.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
compat.c	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
coredump.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
dax.c	dax: fix radix tree insertion race	2017-04-08 00:47:49 -07:00
dcache.c	mnt: Protect the mountpoint hashtable with mount_lock	2017-01-10 13:34:43 +13:00
dcookies.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
direct-io.c	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
drop_caches.c
eventfd.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
eventpoll.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
exec.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
fcntl.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
fhandle.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
file_table.c	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
file.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
filesystems.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
fs_pin.c
fs_struct.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
fs-writeback.c	writeback: fix memory leak in wb_queue_work()	2017-03-13 08:27:34 -06:00
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
internal.h	iomap: constify struct iomap_ops	2017-01-30 16:32:25 -08:00
ioctl.c	sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency	2017-03-02 08:42:37 +01:00
iomap.c	iomap: invalidate page caches should be after iomap_dio_complete() in direct write	2017-03-06 09:50:01 -08:00
Kconfig	dax: fix build warnings with FS_DAX and !FS_IOMAP	2017-01-24 16:26:14 -08:00
Kconfig.binfmt	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
libfs.c	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
locks.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
Makefile	logfs: remove from tree	2016-12-14 23:48:11 -05:00
mbcache.c	mbcache: document that "find" functions only return reusable entries	2016-12-03 15:55:01 -05:00
mount.h	mnt: Tuck mounts under others instead of creating shadow/side mounts.	2017-02-04 00:01:06 +13:00
mpage.c	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
namei.c	Merge remote-tracking branch 'ovl/for-viro' into for-linus	2017-03-02 06:41:22 -05:00
namespace.c	sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
no-block.c
nsfs.c	nsfs: Add an ioctl() to return owner UID of a userns	2017-02-03 14:35:43 +13:00
open.c	vfs: wrap write f_ops with file_{start,end}_write()	2017-02-07 15:05:04 +01:00
pipe.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
pnode.c	mnt: Tuck mounts under others instead of creating shadow/side mounts.	2017-02-04 00:01:06 +13:00
pnode.h	mnt: Tuck mounts under others instead of creating shadow/side mounts.	2017-02-04 00:01:06 +13:00
posix_acl.c	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
proc_namespace.c	sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
read_write.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
readdir.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
select.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
seq_file.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
signalfd.c
splice.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
stack.c
stat.c	statx: Include a mask for stx_attributes in struct statx	2017-04-03 01:06:00 -04:00
statfs.c	vfs: misc struct path constification	2016-12-05 19:03:49 -05:00
super.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2017-02-23 20:33:51 -08:00
sync.c	vfs: use helper for calling f_op->fsync()	2017-02-20 16:51:23 +01:00
timerfd.c	timerfd: Only check CAP_WAKE_ALARM when it is needed	2017-03-01 12:53:44 +01:00
userfaultfd.c	userfaultfd: report actual registered features in fdinfo	2017-04-08 00:47:48 -07:00
utimes.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
xattr.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00