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feaa7bba02
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Steven Whitehouse feaa7bba02 [GFS2] Fix unlinked file handling 
This patch fixes the way we have been dealing with unlinked,
but still open files. It removes all limits (other than memory
for inodes, as per every other filesystem) on numbers of these
which we can support on GFS2. It also means that (like other
fs) its the responsibility of the last process to close the file
to deallocate the storage, rather than the person who did the
unlinking. Note that with GFS2, those two events might take place
on different nodes.

Also there are a number of other changes:

 o We use the Linux inode subsystem as it was intended to be
used, wrt allocating GFS2 inodes
 o The Linux inode cache is now the point which we use for
local enforcement of only holding one copy of the inode in
core at once (previous to this we used the glock layer).
 o We no longer use the unlinked "special" file. We just ignore it
completely. This makes unlinking more efficient.
 o We now use the 4th block allocation state. The previously unused
state is used to track unlinked but still open inodes.
 o gfs2_inoded is no longer needed
 o Several fields are now no longer needed (and removed) from the in
core struct gfs2_inode
 o Several fields are no longer needed (and removed) from the in core
superblock

There are a number of future possible optimisations and clean ups
which have been made possible by this patch.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-06-14 15:32:57 -04:00
..
9p [PATCH] v9fs: signal handling fixes 2006-05-15 11:20:56 -07:00
adfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
affs [PATCH] affs: possible null pointer dereference in affs_rename() 2006-05-26 11:55:46 -07:00
afs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
autofs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
autofs4 [PATCH] autofs4: NFY_NONE wait race fix 2006-05-15 11:20:54 -07:00
befs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
bfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
cifs [[CIFS] Pass truncate open flag through on file open in case setattr fails 2006-05-30 18:09:31 +00:00
coda [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
configfs Merge branch 'master' 2006-05-25 12:40:08 -04:00
cramfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
debugfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
devfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
devpts [PATCH] devpts: use lib/parser.c for parsing mount options 2006-03-23 07:38:17 -08:00
dlm [DLM] compat patch 2006-06-09 16:14:20 -04:00
efs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
exportfs [PATCH] NFS server subtree_check returns dubious value 2006-05-21 12:59:16 -07:00
ext2 [PATCH] Introduce sys_splice() system call 2006-03-30 12:28:18 -08:00
ext3 [PATCH] ext3 resize: fix double unlock_super() 2006-05-31 16:27:10 -07:00
fat [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
freevxfs BUG_ON() Conversion in fs/freevxfs/ 2006-04-02 13:41:02 +02:00
fuse [fuse] fix race between checking and setting file->private_data 2006-04-26 10:49:16 +02:00
gfs2 [GFS2] Fix unlinked file handling 2006-06-14 15:32:57 -04:00
hfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
hfsplus BUG_ON() Conversion in fs/hfsplus/ 2006-04-01 01:14:43 +02:00
hostfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
hpfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
hppfs [PATCH] uml: __user annotations 2006-03-31 12:18:51 -08:00
hugetlbfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
isofs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
jbd [PATCH] Make address_space_operations->invalidatepage return void 2006-03-26 08:56:55 -08:00
jffs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
jffs2 [PATCH] jffs2 warning fixes 2006-05-15 11:20:58 -07:00
jfs JFS: Fix multiple errors in metapage_releasepage 2006-05-24 07:43:38 -05:00
lockd NFS: make 2 functions static 2006-04-19 12:43:47 -04:00
minix [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
msdos [PATCH] fat: kill reserved names 2006-03-31 12:18:55 -08:00
ncpfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
nfs NFS: remove needless check in nfs_opendir() 2006-04-19 13:06:37 -04:00
nfs_common
nfsd [PATCH] knfsd: Fix two problems that can cause rmmod nfsd to die 2006-05-23 10:35:31 -07:00
nls [PATCH] fs: Use ARRAY_SIZE macro 2006-03-24 07:33:19 -08:00
ntfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
ocfs2 ocfs2: fix gfp mask in some file system paths 2006-05-17 14:38:49 -07:00
openpromfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
partitions Alternative fix for MMC oops on unmount after removal 2006-05-12 18:42:09 -07:00
proc [PATCH] Fix file lookup without ref 2006-04-19 09:13:51 -07:00
qnx4 [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
ramfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
reiserfs [PATCH] Fix reiserfs deadlock 2006-04-22 09:19:53 -07:00
romfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
smbfs [PATCH] smbfs: Fix slab corruption in samba error path 2006-05-15 11:20:56 -07:00
sysfs [PATCH] sysfs: Allow sysfs attribute files to be pollable 2006-04-14 11:41:24 -07:00
sysv BUG_ON() Conversion in fs/sysv/ 2006-04-02 13:39:21 +02:00
udf BUG_ON() Conversion in fs/udf/ 2006-04-02 13:40:13 +02:00
ufs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
vfat [PATCH] fat: kill reserved names 2006-03-31 12:18:55 -08:00
xfs [XFS] Fix a possible metadata buffer (AGFL) refcount leak when fixing an 2006-05-08 19:51:58 +10:00
aio.c [PATCH] use kzalloc and kcalloc in core fs code 2006-03-25 08:23:00 -08:00
attr.c [PATCH] capable/capability.h (fs/) 2006-01-11 18:42:13 -08:00
bad_inode.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
binfmt_aout.c
binfmt_elf_fdpic.c BUG_ON() Conversion in fs/binfmt_elf_fdpic.c 2006-03-24 18:38:48 +01:00
binfmt_elf.c [PATCH] x86_64: Increase the variability of the process stack on 64bit architectures 2006-03-25 09:10:52 -08:00
binfmt_em86.c
binfmt_flat.c [PATCH] binfmt_flat: don't check for EMFILE 2006-05-21 12:59:17 -07:00
binfmt_misc.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
binfmt_script.c
binfmt_som.c
bio.c [PATCH] md: Make sure bi_max_vecs is set properly in bio_split 2006-05-23 10:35:31 -07:00
block_dev.c [PATCH] Add ->splice_read/splice_write to def_blk_fops 2006-05-01 19:59:32 +02:00
buffer.c [PATCH] for_each_online_pgdat: renaming for_each_pgdat 2006-03-27 08:44:48 -08:00
char_dev.c [PATCH] Simplify proc/devices and fix early termination regression 2006-03-31 12:18:53 -08:00
compat_ioctl.c [PATCH] fs: Use ARRAY_SIZE macro 2006-03-24 07:33:19 -08:00
compat.c [PATCH] NFS: fix error handling on access_ok in compat_sys_nfsservctl 2006-05-21 12:59:16 -07:00
dcache.c [PATCH] dcache: Add helper d_hash_and_lookup 2006-03-31 12:19:00 -08:00
dcookies.c [PATCH] Use __read_mostly on some hot fs variables 2006-03-26 08:56:56 -08:00
direct-io.c BUG_ON() Conversion in fs/direct-io.c 2006-04-01 01:10:13 +02:00
dnotify.c [PATCH] Use __read_mostly on some hot fs variables 2006-03-26 08:56:56 -08:00
dquot.c BUG_ON() Conversion in fs/dquot.c 2006-04-02 13:36:13 +02:00
drop_caches.c
eventpoll.c [PATCH] uniform POLLRDHUP handling between epoll and poll/select 2006-04-11 06:18:42 -07:00
exec.c [PATCH] task: Make task list manipulations RCU safe 2006-04-19 09:13:49 -07:00
fcntl.c BUG_ON() Conversion in fs/fcntl.c 2006-04-02 13:37:19 +02:00
fifo.c [PATCH] pipe.c/fifo.c code cleanups 2006-04-11 13:53:33 +02:00
file_table.c [PATCH] get_empty_filp tweaks, inline epoll_init_file() 2006-03-23 07:38:17 -08:00
file.c [PATCH] for_each_possible_cpu: fixes for generic part 2006-03-28 09:16:05 -08:00
filesystems.c
fs-writeback.c [PATCH] Move cond_resched() after iput() in sync_sb_inodes() 2006-03-25 08:22:56 -08:00
inode.c BUG_ON() Conversion in fs/inode.c 2006-04-02 13:38:18 +02:00
inotify.c [PATCH] fix NULL dereference in inotify_ignore 2006-05-21 12:59:18 -07:00
ioctl.c [PATCH] capable/capability.h (fs/) 2006-01-11 18:42:13 -08:00
ioprio.c [PATCH] capable/capability.h (fs/) 2006-01-11 18:42:13 -08:00
Kconfig Merge branch 'master' 2006-04-21 12:52:36 -04:00
Kconfig.binfmt
libfs.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
locks.c [PATCH] fs/locks.c: Fix lease_init 2006-05-08 08:07:17 -07:00
Makefile Merge branch 'master' 2006-05-25 12:40:08 -04:00
mbcache.c [PATCH] Typo fixes 2006-03-28 09:16:08 -08:00
mpage.c [PATCH] map multiple blocks for mpage_readpages() 2006-03-26 08:57:01 -08:00
namei.c [PATCH] fs/namei.c: Call to file_permission() under a spinlock in do_lookup_path() 2006-06-05 12:29:16 -07:00
namespace.c [PATCH] revert "vfs: propagate mnt_flags into do_loopback/vfsmount" 2006-05-15 11:20:57 -07:00
nfsctl.c [PATCH] fs: Use ARRAY_SIZE macro 2006-03-24 07:33:19 -08:00
open.c [PATCH] fs/open.c: unexport sys_openat 2006-05-15 11:20:54 -07:00
pipe.c [PATCH] vmsplice: restrict stealing a little more 2006-05-02 15:29:57 +02:00
pnode.c [PATCH] s/;;/;/g 2006-03-24 07:33:24 -08:00
pnode.h
posix_acl.c
quota_v1.c
quota_v2.c [PATCH] sem2mutex: quota 2006-03-23 07:38:11 -08:00
quota.c [PATCH] sem2mutex: quota 2006-03-23 07:38:11 -08:00
read_write.c [PATCH] splice: unlikely() optimizations 2006-04-11 13:56:09 +02:00
readdir.c
select.c [PATCH] select: don't overflow if (SELECT_STACK_ALLOC % sizeof(long) != 0) 2006-04-11 06:18:41 -07:00
seq_file.c [PATCH] sem2mutex: fs/seq_file.c 2006-03-23 07:38:12 -08:00
splice.c [PATCH] splice: redo page lookup if add_to_page_cache() returns -EEXIST 2006-05-04 06:55:12 +02:00
stat.c [PATCH] powerpc: Wire up *at syscalls 2006-04-28 21:04:59 +10:00
super.c [PATCH] sem2mutex: fs/ 2006-03-26 08:56:55 -08:00
sync.c [PATCH] sync_file_range(): use unsigned for flags 2006-04-11 06:18:40 -07:00
xattr_acl.c
xattr.c [PATCH] Collect more inode information during syscall processing. 2006-03-20 14:08:53 -05:00