AcoSail/kernel_optimize_test
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5065227b46
kernel_optimize_test/fs
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Jeff Mahoney 5065227b46 [PATCH] reiserfs: on-demand bitmap loading 
This is the patch the three previous ones have been leading up to.

It changes the behavior of ReiserFS from loading and caching all the bitmaps
as special, to treating the bitmaps like any other bit of metadata and just
letting the system-wide caches figure out what to hang on to.

Buffer heads are allocated on the fly, so there is no need to retain pointers
to all of them.  The caching of the metadata occurs when the data is read and
updated, and is considered invalid and uncached until then.

I needed to remove the vs-4040 check for performing a duplicate operation on a
particular bit.  The reason is that while the other sites for working with
bitmaps are allowed to schedule, is_reusable() is called from do_balance(),
which will panic if a schedule occurs in certain places.

The benefit of on-demand bitmaps clearly outweighs a sanity check that depends
on a compile-time option that is discouraged.

[akpm@osdl.org: warning fix]
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: <reiserfs-dev@namesys.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:28 -07:00
..
9p [PATCH] 9p: fix leak on error path 2006-09-29 09:18:20 -07:00
adfs
affs
afs [PATCH] BLOCK: Remove no-longer necessary linux/buffer_head.h inclusions [try #6] 2006-09-30 20:52:31 +02:00
autofs
autofs4 [PATCH] autofs4: pending flag not cleared on mount fail 2006-09-29 09:18:18 -07:00
befs
bfs
cifs [PATCH] BLOCK: Remove no-longer necessary linux/buffer_head.h inclusions [try #6] 2006-09-30 20:52:31 +02:00
coda
configfs
cramfs [PATCH] cramfs: make cramfs_uncompress_exit() return void 2006-09-29 09:18:20 -07:00
debugfs
devpts
efs
exportfs
ext2 [PATCH] BLOCK: Move the Ext2 device ioctl compat stuff to the Ext2 driver [try #6] 2006-09-30 20:52:29 +02:00
ext3 [PATCH] BLOCK: Move the Ext3 device ioctl compat stuff to the Ext3 driver [try #6] 2006-09-30 20:52:29 +02:00
fat [PATCH] BLOCK: Move the msdos device ioctl compat stuff to the msdos driver [try #6] 2006-09-30 20:52:30 +02:00
freevxfs [PATCH] freevxfs: fix leak on error path 2006-09-29 09:18:20 -07:00
fuse [PATCH] vfs: define new lookup flag for chdir 2006-09-29 09:18:08 -07:00
hfs
hfsplus [PATCH] BLOCK: Move common FS-specific ioctls to linux/fs.h [try #6] 2006-09-30 20:52:28 +02:00
hostfs
hpfs
hppfs
hugetlbfs [PATCH] hugetlbfs: add lock annotation to hugetlbfs_forget_inode() 2006-09-29 09:18:08 -07:00
isofs [PATCH] I/O Error attempting to read last partial block of a file in an ISO9660 file system 2006-09-29 09:18:15 -07:00
jbd [PATCH] JBD: memory leak in "journal_init_dev()" 2006-09-29 09:18:03 -07:00
jffs
jffs2
jfs [PATCH] fs/jfs: Conversion to generic boolean 2006-10-01 00:39:19 -07:00
lockd
minix
msdos [PATCH] add -o flush for fat 2006-09-29 09:18:12 -07:00
ncpfs [PATCH] Move ncpfs 32bit compat ioctl to ncpfs 2006-10-01 00:39:23 -07:00
nfs [PATCH] BLOCK: Remove no-longer necessary linux/mpage.h inclusions [try #6] 2006-09-30 20:52:30 +02:00
nfs_common
nfsd
nls
ntfs [PATCH] fs/ntfs: Conversion to generic boolean 2006-10-01 00:39:19 -07:00
ocfs2
openpromfs
partitions [PATCH] fs/partitions: Conversion to generic boolean 2006-10-01 00:39:19 -07:00
proc [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
qnx4
ramfs
reiserfs [PATCH] reiserfs: on-demand bitmap loading 2006-10-01 00:39:28 -07:00
romfs
smbfs
sysfs
sysv
udf [PATCH] mount udf UDF_PART_FLAG_READ_ONLY partitions with MS_RDONLY 2006-09-29 09:18:09 -07:00
ufs
vfat
xfs [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
aio.c
attr.c
bad_inode.c
binfmt_aout.c [PATCH] Require mmap handler for a.out executables 2006-09-29 09:18:08 -07:00
binfmt_elf_fdpic.c [PATCH] elf_fdpic_core_dump: don't take tasklist_lock 2006-09-29 09:18:14 -07:00
binfmt_elf.c [PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6] 2006-09-30 20:52:18 +02:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c [PATCH] Fix unserialized task->files changing 2006-09-29 09:18:12 -07:00
binfmt_script.c
binfmt_som.c
bio.c [PATCH] Update axboe@suse.de email address 2006-09-30 20:52:34 +02:00
block_dev.c [PATCH] BLOCK: Move __invalidate_device() to block_dev.c [try #6] 2006-09-30 20:52:27 +02:00
buffer.c [PATCH] BLOCK: Move functions out of buffer code [try #6] 2006-09-30 20:31:19 +02:00
char_dev.c [PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6] 2006-09-30 20:52:18 +02:00
compat_ioctl.c [PATCH] Move ncpfs 32bit compat ioctl to ncpfs 2006-10-01 00:39:23 -07:00
compat.c [PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6] 2006-09-30 20:52:18 +02:00
dcache.c [PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6] 2006-09-30 20:52:18 +02:00
dcookies.c
direct-io.c
dnotify.c
dquot.c [PATCH] dquot: add proper locking when using current->signal->tty 2006-09-29 09:18:14 -07:00
drop_caches.c
eventpoll.c
exec.c [PATCH] Fix unserialized task->files changing 2006-09-29 09:18:12 -07:00
fcntl.c
fifo.c
file_table.c
file.c [PATCH] expand_fdtable(): remove pointless unlock+lock 2006-09-29 09:18:25 -07:00
filesystems.c [PATCH] Ban register_filesystem(NULL); 2006-09-29 09:18:20 -07:00
fs-writeback.c [PATCH] BLOCK: Remove dependence on existence of blockdev_superblock [try #6] 2006-09-30 20:52:26 +02:00
generic_acl.c [PATCH] Generic infrastructure for acls 2006-09-29 09:18:24 -07:00
inode.c [PATCH] BLOCK: Move __invalidate_device() to block_dev.c [try #6] 2006-09-30 20:52:27 +02:00
inotify_user.c
inotify.c
internal.h [PATCH] CONFIG_BLOCK internal.h cleanups 2006-09-30 20:52:32 +02:00
ioctl.c
ioprio.c [PATCH] Update axboe@suse.de email address 2006-09-30 20:52:34 +02:00
Kconfig [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
Kconfig.binfmt
libfs.c [PATCH] libfs: remove page up-to-date check from simple_readpage 2006-09-29 09:18:06 -07:00
locks.c [PATCH] VFS: Use SEEK_{SET, CUR, END} instead of hardcoded values 2006-10-01 00:39:21 -07:00
Makefile [PATCH] Create fs/utimes.c 2006-10-01 00:39:19 -07:00
mbcache.c [PATCH] mbcache: add lock annotation for __mb_cache_entry_release_unlock() 2006-09-29 09:18:07 -07:00
mpage.c [PATCH] BLOCK: Dissociate generic_writepages() from mpage stuff [try #6] 2006-09-30 20:52:26 +02:00
namei.c [PATCH] fs/namei.c: replace multiple current->fs by shortcut variable 2006-09-29 09:18:22 -07:00
namespace.c [PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6] 2006-09-30 20:52:18 +02:00
nfsctl.c
no-block.c [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
open.c [PATCH] Create fs/utimes.c 2006-10-01 00:39:19 -07:00
pipe.c
pnode.c
pnode.h
posix_acl.c [PATCH] kmemdup: some users 2006-10-01 00:39:19 -07:00
quota_v1.c
quota_v2.c
quota.c [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
read_write.c
readdir.c
select.c [PATCH] enforce RLIMIT_NOFILE in poll() 2006-09-29 09:18:23 -07:00
seq_file.c
splice.c [PATCH] Update axboe@suse.de email address 2006-09-30 20:52:34 +02:00
stat.c
super.c [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
sync.c [PATCH] BLOCK: Move functions out of buffer code [try #6] 2006-09-30 20:31:19 +02:00
utimes.c [PATCH] Create fs/utimes.c 2006-10-01 00:39:19 -07:00
xattr_acl.c
xattr.c