Steven Whitehouse 009d851837 GFS2: Metadata address space clean up ... Since the start of GFS2, an "extra" inode has been used to store the metadata belonging to each inode. The only reason for using this inode was to have an extra address space, the other fields were unused. This means that the memory usage was rather inefficient. The reason for keeping each inode's metadata in a separate address space is that when glocks are requested on remote nodes, we need to be able to efficiently locate the data and metadata which relating to that glock (inode) in order to sync or sync and invalidate it (depending on the remotely requested lock mode). This patch adds a new type of glock, which has in addition to its normal fields, has an address space. This applies to all inode and rgrp glocks (but to no other glock types which remain as before). As a result, we no longer need to have the second inode. This results in three major improvements: 1. A saving of approx 25% of memory used in caching inodes 2. A removal of the circular dependency between inodes and glocks 3. No confusion between "normal" and "metadata" inodes in super.c Although the first of these is the more immediately apparent, the second is just as important as it now enables a number of clean ups at umount time. Those will be the subject of future patches. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>		2010-03-01 14:07:37 +00:00
..
9p	9p: fix memory leak in v9fs_parse_options()	2010-02-08 17:59:34 -06:00
adfs	adfs: remove redundant test on unsigned	2009-09-24 07:21:05 -07:00
affs	fix affs parse_options()	2010-01-26 22:22:25 -05:00
afs	afs: remove manual O_SYNC handling	2009-12-10 15:02:50 +01:00
autofs	trivial: remove unnecessary semicolons	2009-09-21 15:14:58 +02:00
autofs4	autofs4: always use lookup for lookup	2009-12-16 07:19:58 -08:00
befs	befs: fix leak	2010-02-07 03:06:21 -05:00
bfs	Fix failure exits in bfs_fill_super()	2010-01-26 22:22:25 -05:00
btrfs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2010-02-15 19:56:21 -08:00
cachefiles	CacheFiles: Fix a race in cachefiles_delete_object() vs rename	2010-02-20 10:06:35 -05:00
cifs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6	2010-02-10 07:16:44 -08:00
coda	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
configfs	Fix configfs leak	2010-01-14 09:05:42 -05:00
cramfs
debugfs	get rid of pointless checks after simple_pin_fs()	2010-01-26 22:22:26 -05:00
devpts	devpts_get_tty() should validate inode	2009-12-11 15:18:05 -08:00
dlm	dlm: use bastmode in debugfs output	2010-02-26 12:15:54 -06:00
ecryptfs	ecryptfs: use after free	2010-01-19 22:36:06 -06:00
efs
exofs	exofs: simple_write_end does not mark_inode_dirty	2010-01-05 09:14:32 +02:00
exportfs	nfs: new subdir Documentation/filesystems/nfs	2009-10-27 19:34:04 -04:00
ext2	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2009-12-16 12:04:02 -08:00
ext3	ext3: Replace lock/unlock_super() with an explicit lock for resizing	2009-12-23 13:44:12 +01:00
ext4	ext4: Fix quota accounting error with fallocate	2010-01-25 04:00:31 -05:00
fat	Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6	2009-12-16 10:29:26 -08:00
freevxfs
fscache	FS-Cache: Avoid maybe-used-uninitialised warning on variable	2009-12-16 07:20:13 -08:00
fuse	mm: flush dcache before writing into page to avoid alias	2010-02-02 18:11:21 -08:00
gfs2	GFS2: Metadata address space clean up	2010-03-01 14:07:37 +00:00
hfs	hfs: fix a potential buffer overflow	2009-12-15 08:53:10 -08:00
hfsplus	hfsplus: refuse to mount volumes larger than 2TB	2009-10-29 07:39:27 -07:00
hostfs
hpfs	hpfs: use bitmap_weight()	2009-12-16 07:20:06 -08:00
hppfs	hppfs: handle ->put_link()	2010-01-14 09:05:25 -05:00
hugetlbfs	Untangling ima mess, part 1: alloc_file()	2009-12-16 12:16:47 -05:00
isofs	Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux	2009-12-16 10:43:34 -08:00
jbd	jbd: jbd-debug and jbd2-debug should be writable	2009-12-23 13:44:13 +01:00
jbd2	jbd2: don't use __GFP_NOFAIL in journal_init_common()	2009-12-23 08:05:15 -05:00
jffs2	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2009-12-16 12:04:02 -08:00
jfs	jfs: Fix 32bit build warning	2009-12-22 12:27:35 -05:00
lockd	Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux	2009-12-16 10:43:34 -08:00
minix	V3 minixfs: add missing directory type checking	2009-09-23 07:39:57 -07:00
ncpfs	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
nfs	Remove EXPERIMENTAL from NFS_FSCACHE	2010-02-26 17:22:35 -08:00
nfs_common
nfsd	vfs: don't call ima_file_check() unconditionally in nfsd_open()	2010-02-20 00:47:31 -05:00
nilfs2	nilfs2: fix potential leak of dirty data on umount	2010-01-31 14:57:31 +09:00
nls	Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6	2009-09-30 09:31:14 -07:00
notify	inotify: only warn once for inotify problems	2010-01-15 14:49:23 -08:00
ntfs	kill I_LOCK	2009-12-17 11:03:25 -05:00
ocfs2	ocfs2/cluster: Make o2net connect messages KERN_NOTICE	2010-02-08 13:02:28 -08:00
omfs	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
openpromfs
partitions	partitions: read whole sector with EFI GPT header	2009-11-23 09:29:58 +01:00
proc	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-02-28 10:13:16 -08:00
qnx4	qnx4: use hweight8	2009-12-16 07:20:18 -08:00
quota	quota: Fix dquot_transfer for filesystems different from ext4	2010-01-11 13:06:41 +01:00
ramfs	nommu: fix shared mmap after truncate shrinkage problems	2010-01-16 12:15:40 -08:00
reiserfs	reiserfs: Fix softlockup while waiting on an inode	2010-02-14 19:07:56 +01:00
romfs	fix leak in romfs_fill_super()	2010-01-26 22:22:26 -05:00
smbfs	fs: Make unload_nls() NULL pointer safe	2009-09-24 07:47:42 -04:00
squashfs	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
sysfs	sysfs: sysfs_sd_setattr set iattrs unconditionally	2010-02-16 15:42:42 -08:00
sysv
ubifs	lib: Introduce generic list_sort function	2010-01-12 21:02:00 -08:00
udf	udf: Avoid IO in udf_clear_inode	2009-12-14 21:40:04 +01:00
ufs	ufs: NFS support	2009-12-16 07:20:06 -08:00
xfs	Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs	2010-02-26 17:18:52 -08:00
aio.c	aio: remove unused field	2009-12-16 07:20:13 -08:00
anon_inodes.c	Sanitize f_flags helpers	2009-12-22 12:27:34 -05:00
attr.c	truncate: new helpers	2009-09-24 08:41:47 -04:00
bad_inode.c
binfmt_aout.c	Split 'flush_old_exec' into two functions	2010-01-29 08:22:01 -08:00
binfmt_elf_fdpic.c	Split 'flush_old_exec' into two functions	2010-01-29 08:22:01 -08:00
binfmt_elf.c	Split 'flush_old_exec' into two functions	2010-01-29 08:22:01 -08:00
binfmt_em86.c
binfmt_flat.c	Split 'flush_old_exec' into two functions	2010-01-29 08:22:01 -08:00
binfmt_misc.c
binfmt_script.c
binfmt_som.c	Split 'flush_old_exec' into two functions	2010-01-29 08:22:01 -08:00
bio-integrity.c	block: fix bugs in bio-integrity mempool usage	2010-01-30 20:28:19 +01:00
bio.c	block: fix bio_add_page for non trivial merge_bvec_fn case	2010-01-28 15:08:29 +01:00
block_dev.c	freeze_bdev: don't deactivate successfully frozen MS_RDONLY sb	2010-02-07 03:06:21 -05:00
buffer.c	Merge branch 'writeback' of git://git.kernel.dk/linux-2.6-block	2009-09-25 09:27:30 -07:00
char_dev.c	fs/char_dev.c: remove useless loop	2009-09-24 07:21:03 -07:00
compat_binfmt_elf.c
compat_ioctl.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6	2010-02-11 14:05:55 -08:00
compat.c	compat.c: Remove dependence on nfsd private headers	2009-12-14 18:12:10 -05:00
dcache.c	libfs: move EXPORT_SYMBOL for d_alloc_name	2009-12-16 12:16:48 -05:00
dcookies.c
direct-io.c	dio: fix use-after-free	2009-12-17 04:52:13 -05:00
drop_caches.c	sysctl: remove "struct file *" argument of ->proc_handler	2009-09-24 07:21:04 -07:00
eventfd.c	eventfd - allow atomic read and waitqueue remove	2010-01-25 12:26:38 -02:00
eventpoll.c	anonfd: Allow making anon files read-only	2009-12-22 12:27:34 -05:00
exec.c	fs/exec.c: fix initial stack reservation	2010-02-22 19:50:34 -08:00
fcntl.c	Fix race in tty_fasync() properly	2010-02-07 10:26:01 -08:00
fifo.c
file_table.c	Take ima_file_free() to proper place.	2010-02-07 03:07:29 -05:00
file.c	vfs: Apply lockdep-based checking to rcu_dereference() uses	2010-02-25 10:34:48 +01:00
filesystems.c
fs_struct.c
fs-writeback.c	writeback: add missing kernel-doc notation	2010-01-02 10:09:44 -08:00
generic_acl.c	make generic_acl slightly more generic	2009-12-16 12:16:49 -05:00
inode.c	kill I_LOCK	2009-12-17 11:03:25 -05:00
internal.h	Fix f_flags/f_mode in case of lookup_instantiate_filp() from open(pathname, 3)	2009-12-22 12:27:34 -05:00
ioctl.c	__generic_block_fiemap(): fix for files bigger than 4GB	2009-11-12 07:26:01 -08:00
ioprio.c
Kconfig	Revert "task_struct: make journal_info conditional"	2009-12-17 13:23:24 -08:00
Kconfig.binfmt
libfs.c	libfs: move EXPORT_SYMBOL for d_alloc_name	2009-12-16 12:16:48 -05:00
locks.c	const: make lock_manager_operations const	2009-09-22 07:17:25 -07:00
Makefile
mbcache.c
mpage.c
namei.c	fix LOOKUP_FOLLOW on automount "symlinks"	2010-02-19 03:56:42 -05:00
namespace.c	do_add_mount() should sanitize mnt_flags	2010-01-16 13:07:36 -05:00
nfsctl.c	vfs: nfsctl.c un-used nfsd #includes	2009-12-14 18:12:11 -05:00
no-block.c
open.c	Sanitize f_flags helpers	2009-12-22 12:27:34 -05:00
pipe.c	fs: no games with DCACHE_UNHASHED	2009-12-17 10:51:40 -05:00
pnode.c
pnode.h
posix_acl.c
read_write.c	sendfile(): check f_op.splice_write() rather than f_op.sendpage()	2009-11-04 09:09:52 +01:00
read_write.h
readdir.c
select.c	headers: remove sched.h from poll.h	2009-10-04 15:05:10 -07:00
seq_file.c	vfs: seq_file: add helpers for data filling	2009-09-24 07:47:35 -04:00
signalfd.c	anonfd: Allow making anon files read-only	2009-12-22 12:27:34 -05:00
splice.c	sendfile(): check f_op.splice_write() rather than f_op.sendpage()	2009-11-04 09:09:52 +01:00
stack.c	VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size	2009-12-17 10:58:17 -05:00
stat.c	Add unlocked version of inode_add_bytes() function	2009-12-23 13:33:54 +01:00
super.c	vfs: get_sb_single() - do not pass options twice	2009-12-23 11:23:43 -08:00
sync.c	fold do_sync_file_range into sys_sync_file_range	2009-12-17 11:03:25 -05:00
timerfd.c	anonfd: Allow making anon files read-only	2009-12-22 12:27:34 -05:00
utimes.c
xattr_acl.c	VFS: Use GFP_NOFS in posix_acl_from_xattr()	2009-12-03 11:48:07 +00:00
xattr.c	sanitize xattr handler prototypes	2009-12-16 12:16:49 -05:00