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Corrado Zoccolo 749ef9f842 cfq: improve fsync performance for small files ... Fsync performance for small files achieved by cfq on high-end disks is lower than what deadline can achieve, due to idling introduced between the sync write happening in process context and the journal commit. Moreover, when competing with a sequential reader, a process writing small files and fsync-ing them is starved. This patch fixes the two problems by: - marking journal commits as WRITE_SYNC, so that they get the REQ_NOIDLE flag set, - force all queues that have REQ_NOIDLE requests to be put in the noidle tree. Having the queue associated to the fsync-ing process and the one associated to journal commits in the noidle tree allows: - switching between them without idling, - fairness vs. competing idling queues, since they will be serviced only after the noidle tree expires its slice. Acked-by: Vivek Goyal <vgoyal@redhat.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Tested-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Corrado Zoccolo <czoccolo@gmail.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>		15 years ago
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9p	v9fs: fixup for inode_setattr being removed	15 years ago
adfs	check ATTR_SIZE contraints in inode_change_ok	15 years ago
affs	AFFS: wait for sb synchronization when needed	15 years ago
afs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6	15 years ago
autofs	autofs/autofs4: Move compat_ioctl handling into fs	15 years ago
autofs4	autofs4: remove unneeded null check in try_to_fill_dentry()	15 years ago
befs	…
bfs	BFS: clean up the superblock usage	15 years ago
btrfs	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	15 years ago
cachefiles	Add a dummy printk function for the maintenance of unused printks	15 years ago
ceph	ceph: generalize mon requests, add pool op support	15 years ago
cifs	cifs: update README to include details about 'fsc' option	15 years ago
coda	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	15 years ago
configfs	…
cramfs	cramfs: only unlock new inodes	15 years ago
debugfs	…
devpts	…
dlm	fs/dlm: Drop unnecessary null test	15 years ago
ecryptfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6	15 years ago
efs	…
exofs	Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd	15 years ago
exportfs	…
ext2	mbcache: Remove unused features	15 years ago
ext3	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
fat	remove SWRITE* I/O types	15 years ago
freevxfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
fscache	Add a dummy printk function for the maintenance of unused printks	15 years ago
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
gfs2	Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block	15 years ago
hfs	convert remaining ->clear_inode() to ->evict_inode()	15 years ago
hfsplus	convert remaining ->clear_inode() to ->evict_inode()	15 years ago
hostfs	hostfs ->follow_link() braino	15 years ago
hpfs	switch hpfs to ->evict_inode()	15 years ago
hppfs	switch hppfs to ->evict_inode()	15 years ago
hugetlbfs	new helper: end_writeback()	15 years ago
isofs	isofs: Fix lseek() to position beyond 4 GB	15 years ago
jbd	cfq: improve fsync performance for small files	15 years ago
jbd2	cfq: improve fsync performance for small files	15 years ago
jffs2	Merge git://git.infradead.org/mtd-2.6	15 years ago
jfs	jfs: don't allow os2 xattr namespace overlap with others	15 years ago
lockd	…
logfs	logfs: kill BKL	15 years ago
minix	switch minix to ->evict_inode(), fix write_inode/delete_inode race	15 years ago
ncpfs	Merge branch 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing	15 years ago
nfs	Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6	15 years ago
nfs_common	…
nfsd	Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6	15 years ago
nilfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2	15 years ago
nls	…
notify	Revert "fsnotify: store struct file not struct path"	15 years ago
ntfs	convert remaining ->clear_inode() to ->evict_inode()	15 years ago
ocfs2	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	15 years ago
omfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bcopeland/omfs	15 years ago
openpromfs	…
partitions	genhd, efi: add efi partition metadata to hd_structs	15 years ago
proc	mm: fix up some user-visible effects of the stack guard page	15 years ago
qnx4	get rid of cont_write_begin_newtrunc	15 years ago
quota	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
ramfs	check ATTR_SIZE contraints in inode_change_ok	15 years ago
reiserfs	remove SWRITE* I/O types	15 years ago
romfs	…
smbfs	switch smbfs to evict_inode()	15 years ago
squashfs	Squashfs: fix checkpatch.pl warnings	15 years ago
sysfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
sysv	fs/sysv/super.c: add support for non-PDP11 v7 filesystems	15 years ago
ubifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
udf	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
ufs	remove SWRITE* I/O types	15 years ago
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
Kconfig	…
Kconfig.binfmt	…
Makefile	…
aio.c	aio: fix wrong subsystem comments	15 years ago
anon_inodes.c	…
attr.c	check ATTR_SIZE contraints in inode_change_ok	15 years ago
bad_inode.c	bkl: Remove locked .ioctl file operation	15 years ago
binfmt_aout.c	…
binfmt_elf.c	…
binfmt_elf_fdpic.c	…
binfmt_em86.c	…
binfmt_flat.c	…
binfmt_misc.c	Make do_execve() take a const filename pointer	15 years ago
binfmt_script.c	Make do_execve() take a const filename pointer	15 years ago
binfmt_som.c	…
bio-integrity.c	…
bio.c	block: unify flags for struct bio and struct request	15 years ago
block_dev.c	blkdev: cgroup whitelist permission fix	15 years ago
buffer.c	remove SWRITE* I/O types	15 years ago
char_dev.c	Fix init ordering of /dev/console vs callers of modprobe	15 years ago
compat.c	Mark arguments to certain syscalls as being const	15 years ago
compat_binfmt_elf.c	…
compat_ioctl.c	bkl: Remove locked .ioctl file operation	15 years ago
dcache.c	fs: brlock vfsmount_lock	15 years ago
dcookies.c	…
direct-io.c	sort out blockdev_direct_IO variants	15 years ago
drop_caches.c	simplify checks for I_CLEAR/I_FREEING	15 years ago
eventfd.c	…
eventpoll.c	…
exec.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	15 years ago
fcntl.c	vfs: O_* bit numbers uniqueness check	15 years ago
fifo.c	…
file.c	vfs: use kmalloc() to allocate fdmem if possible	15 years ago
file_table.c	fs: scale files_lock	15 years ago
filesystems.c	…
fs-writeback.c	mm: fix writeback_in_progress()	15 years ago
fs_struct.c	fs: fs_struct rwlock to spinlock	15 years ago
generic_acl.c	vfs: update ctime when changing the file's permission by setfacl	15 years ago
inode.c	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify	15 years ago
internal.h	fs: brlock vfsmount_lock	15 years ago
ioctl.c	bkl: Remove locked .ioctl file operation	15 years ago
ioprio.c	…
libfs.c	check ATTR_SIZE contraints in inode_change_ok	15 years ago
locks.c	…
mbcache.c	mbcache: Limit the maximum number of cache entries	15 years ago
mpage.c	…
namei.c	fs: brlock vfsmount_lock	15 years ago
namespace.c	fs: brlock vfsmount_lock	15 years ago
nfsctl.c	…
no-block.c	…
open.c	fs: cleanup files_lock locking	15 years ago
pipe.c	…
pnode.c	fs: brlock vfsmount_lock	15 years ago
pnode.h	…
posix_acl.c	…
read_write.c	…
read_write.h	…
readdir.c	vfs: fix warning: 'dirent' is used uninitialized in this function	15 years ago
select.c	…
seq_file.c	…
signalfd.c	signalfd: fill in ssi_int for posix timers and message queues	15 years ago
splice.c	splice: fix misuse of SPLICE_F_NONBLOCK	15 years ago
stack.c	…
stat.c	Mark arguments to certain syscalls as being const	15 years ago
statfs.c	add f_flags to struct statfs(64)	15 years ago
super.c	fs: scale files_lock	15 years ago
sync.c	get rid of file_fsync()	15 years ago
timerfd.c	…
utimes.c	Mark arguments to certain syscalls as being const	15 years ago
xattr.c	…
xattr_acl.c	…