OGAWA Hirofumi 9f966be899 fat: optimize fat_count_free_clusters() ... On large partition, scanning the free clusters is very slow if users doesn't use "usefree" option. For optimizing it, this patch uses sb_breadahead() to read of FAT sectors. On some user's 15GB partition, this patch improved it very much (1min => 600ms). The following is the result of 2GB partition on my machine. without patch: root@devron (/)# time df -h > /dev/null real 0m1.202s user 0m0.000s sys 0m0.440s with patch: root@devron (/)# time df -h > /dev/null real 0m0.378s user 0m0.012s sys 0m0.168s Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-01-08 16:10:35 -08:00
..
9p
adfs
affs
afs
autofs
autofs4
befs
bfs	regression: bfs endianness bug	2007-12-05 09:25:20 -08:00
cifs	regression: cifs endianness bug	2007-12-05 09:25:19 -08:00
coda
configfs
cramfs
debugfs
devpts
dlm
ecryptfs	ecryptfs: redo dget,mntget on dentry_open failure	2007-12-23 12:54:37 -08:00
efs
exportfs
ext2	fix up ext2_fs.h for userspace after reservations backport	2007-11-29 09:24:53 -08:00
ext3	ext3, ext4: avoid divide by zero	2007-12-17 19:28:16 -08:00
ext4	ext3, ext4: avoid divide by zero	2007-12-17 19:28:16 -08:00
fat	fat: optimize fat_count_free_clusters()	2008-01-08 16:10:35 -08:00
freevxfs
fuse	fuse: fix attribute caching after rename	2007-11-29 09:24:54 -08:00
gfs2
hfs
hfsplus
hostfs
hpfs
hppfs
hugetlbfs	hugetlb: allow bulk updating in hugetlb_*_quota()	2007-11-14 18:45:40 -08:00
isofs
jbd	jbd: Fix assertion failure in fs/jbd/checkpoint.c	2007-12-05 09:21:20 -08:00
jbd2
jffs2	Freezer: Fix JFFS2 garbage collector freezing issue (rev. 2)	2007-12-04 01:35:41 -05:00
jfs
lockd
minix
msdos
ncpfs
nfs	NFSv4: Fix open_to_lock_owner sequenceid allocation...	2008-01-03 09:37:17 -05:00
nfs_common
nfsd
nls
ntfs
ocfs2	ocfs2: Re-journal buffers after transaction extend	2007-12-17 10:51:23 -08:00
openpromfs
partitions
proc	restrict reading from /proc/<pid>/maps to those who share ->mm or can ptrace pid	2008-01-02 13:13:27 -08:00
qnx4
ramfs
reiserfs	proc: fix proc_dir_entry refcounting	2007-12-05 09:21:20 -08:00
romfs
smbfs	smbfs: fix debug builds	2007-11-14 18:45:43 -08:00
sysfs	sysfs: fix off-by-one error in fill_read_buffer()	2007-11-28 13:53:53 -08:00
sysv
udf
ufs	ufs: fix nexstep dir block size	2007-12-05 09:21:18 -08:00
vfat
xfs	[XFS] Initialise current offset in xfs_file_readdir correctly	2007-12-21 11:40:05 +11:00
aio.c	aio: only account I/O wait time in read_events if there are active requests	2007-12-05 09:21:18 -08:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c	mm: fix exit_mmap BUG() on a.out binary exit	2007-12-20 07:49:53 -08:00
binfmt_elf.c	core dump: real_parent ppid	2008-01-07 14:55:37 -08:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
binfmt_som.c
bio.c
block_dev.c
buffer.c
char_dev.c
compat.c
compat_ioctl.c	fix: using joysticks in 32 bit applications on 64 bit systems	2008-01-06 10:26:06 -08:00
dcache.c
dcookies.c
direct-io.c
dnotify.c
dquot.c	Don't send quota messages repeatedly when hardlimit reached	2007-12-23 12:54:36 -08:00
drop_caches.c
eventfd.c
eventpoll.c
exec.c	vfs: coredumping fix	2007-11-28 10:58:01 -08:00
fcntl.c
fifo.c
file.c
file_table.c
filesystems.c
fs-writeback.c
generic_acl.c
inode.c
inotify.c
inotify_user.c
internal.h
ioctl.c
ioprio.c
Kconfig	fs/Kconfig: grammar fix	2007-12-17 19:28:16 -08:00
Kconfig.binfmt
libfs.c
locks.c
Makefile
mbcache.c
mpage.c
namei.c
namespace.c
nfsctl.c
no-block.c
open.c	mark sys_open/sys_read exports unused	2007-11-14 18:45:42 -08:00
pipe.c
pnode.c
pnode.h
posix_acl.c
quota.c
quota_v1.c
quota_v2.c
read_write.c	mark sys_open/sys_read exports unused	2007-11-14 18:45:42 -08:00
read_write.h
readdir.c
select.c
seq_file.c
signalfd.c
splice.c
stack.c
stat.c
super.c
sync.c
timerfd.c
utimes.c
xattr.c
xattr_acl.c