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Steven Whitehouse ecc30c7915 [GFS2] Streamline indirect pointer tree height calculation 
This patch improves the calculation of the tree height in order to reduce
the number of operations which are carried out on each call to gfs2_block_map.
In the common case, we now make a single comparison, rather than calculating
the required tree height from scratch each time. Also in the case that the
tree does need some extra height, we start from the current height rather from
zero when we work out what the new height ought to be.

In addition the di_height field is moved into the inode proper and reduced
in size to a u8 since the value must be between 0 and GFS2_MAX_META_HEIGHT (10).

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
 		2008-03-31 10:39:46 +01:00
..
9p Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
adfs mount options: fix adfs 2008-02-08 09:22:39 -08:00
affs mount options: fix affs 2008-02-08 09:22:39 -08:00
afs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2008-03-28 15:23:01 -07:00
autofs mount options: fix autofs 2008-02-08 09:22:40 -08:00
autofs4 Introduce path_put() 2008-02-14 21:13:33 -08:00
befs mount options: fix befs 2008-02-08 09:22:40 -08:00
bfs iget: stop BFS from using iget() and read_inode() 2008-02-07 08:42:27 -08:00
cifs cifs: fix misannotations 2008-03-30 14:20:23 -07:00
coda Introduce path_put() 2008-02-14 21:13:33 -08:00
configfs Introduce path_put() 2008-02-14 21:13:33 -08:00
cramfs fs/cramfs/inode.c: replace hardcoded value with preprocessor constant 2007-10-18 14:37:29 -07:00
debugfs debugfs: fix sparse warnings 2008-03-04 14:47:06 -08:00
devpts mount options: fix devpts 2008-02-08 09:22:40 -08:00
dlm dlm: fix rcom_names message to self 2008-02-21 15:19:54 -06:00
ecryptfs eCryptfs: Swap dput() and mntput() 2008-03-19 18:53:36 -07:00
efs efs: move headers out of include/linux/ 2008-02-23 17:12:15 -08:00
exportfs exportfs: update documentation 2007-10-22 08:13:21 -07:00
ext2 mount options: fix ext2 2008-02-08 09:22:40 -08:00
ext3 ext3: fix wrong gfp type under transaction 2008-03-19 18:53:36 -07:00
ext4 ext4: add missing ext4_journal_stop() 2008-02-25 15:37:42 -05:00
fat mount options: fix fat 2008-02-08 09:22:40 -08:00
freevxfs iget: stop FreeVXFS from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
fuse fuse: fix permission checking 2008-02-23 17:12:13 -08:00
gfs2 [GFS2] Streamline indirect pointer tree height calculation 2008-03-31 10:39:46 +01:00
hfs hfs_bnode_find() can fail, resulting in hfs_bnode_split() breakage 2008-03-17 09:46:55 -07:00
hfsplus fs/hfsplus/unicode.c: fix uninitialized var warning 2008-02-08 09:22:36 -08:00
hostfs uml: fix hostfs tv_usec calculations 2008-02-05 09:44:30 -08:00
hpfs mount options: fix hpfs 2008-02-08 09:22:40 -08:00
hppfs [PATCH] sanitize hppfs 2008-03-19 06:42:18 -04:00
hugetlbfs [PATCH] double iput() on failure exit in hugetlb 2008-03-19 06:55:01 -04:00
isofs zisofs: fix readpage() outside i_size 2008-03-19 18:53:36 -07:00
jbd jbd/jbd2 NULL noise 2008-03-30 14:18:41 -07:00
jbd2 jbd/jbd2 NULL noise 2008-03-30 14:18:41 -07:00
jffs2 Merge git://git.infradead.org/mtd-2.6 2008-02-07 10:20:31 -08:00
jfs BKL-removal: Implement a compat_ioctl handler for JFS 2008-02-07 13:45:29 -06:00
lockd Wrap buffers used for rpc debug printks into RPC_IFDEBUG 2008-02-21 18:42:29 -05:00
minix iget: stop the MINIX filesystem from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
msdos
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ncpfs mount options: fix ncpfs 2008-02-08 09:22:40 -08:00
nfs [PATCH] do shrink_submounts() for all fs types 2008-03-27 20:47:58 -04:00
nfs_common
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nfsd nfsd: fix oops on access from high-numbered ports 2008-03-14 16:49:15 -07:00
nls sparse pointer use of zero as null 2007-10-18 14:37:31 -07:00
ntfs is_vmalloc_addr(): Check if an address is within the vmalloc boundaries 2008-02-05 09:44:14 -08:00
ocfs2 ocfs2: Fix NULL pointer dereferences in o2net 2008-03-10 15:14:19 -07:00
openpromfs iget: stop OPENPROMFS from using iget() and read_inode() 2008-02-07 08:42:29 -08:00
partitions Enhanced partition statistics: remove old partition statistics 2008-02-08 12:42:01 +01:00
proc Change pagemap output format to allow for future reporting of huge pages 2008-03-22 17:03:10 -07:00
qnx4 iget: stop QNX4 from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
ramfs Remove valueless definition of hard-selected RAMFS option 2007-10-17 08:42:56 -07:00
reiserfs NULL noise: fs/*, mm/*, kernel/* 2008-03-30 14:18:41 -07:00
romfs ROMFS: Fix up an error in iget removal 2008-03-19 18:53:36 -07:00
smbfs NULL noise: fs/*, mm/*, kernel/* 2008-03-30 14:18:41 -07:00
sysfs driver core: debug for bad dev_attr_show() return value. 2008-03-24 22:33:49 -07:00
sysv iget: stop the SYSV filesystem from using iget() and read_inode() 2008-02-07 08:42:29 -08:00
udf udf: fix udf_add_free_space 2008-02-13 16:21:20 -08:00
ufs fs/ufs/balloc.c: fix sparc64 printk warning 2008-03-19 18:53:37 -07:00
vfat Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
xfs [XFS] fix inode leak in xfs_iget_core() 2008-03-06 16:38:50 +11:00
Kconfig deprecate smbfs in favour of cifs 2008-02-05 14:37:15 -08:00
Kconfig.binfmt aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT 2008-02-08 09:22:30 -08:00
Makefile x86: compat_binfmt_elf Kconfig 2008-01-30 13:31:46 +01:00
aio.c aio: bad AIO race in aio_complete() leads to process hang 2008-03-19 18:53:35 -07:00
anon_inodes.c [PATCH] fix up new filp allocators 2008-03-19 06:54:05 -04:00
attr.c VFS: make notify_change pass ATTR_KILL_S*ID to setattr operations 2007-10-18 14:37:22 -07:00
bad_inode.c iget: introduce a function to register iget failure 2008-02-07 08:42:26 -08:00
binfmt_aout.c aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT 2008-02-08 09:22:30 -08:00
binfmt_elf.c core dump: user_regset writeback 2008-03-04 16:35:10 -08:00
binfmt_elf_fdpic.c pid namespaces: changes to show virtual ids to user 2007-10-19 11:53:40 -07:00
binfmt_em86.c Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
binfmt_flat.c FLAT binaries: drop BINFMT_FLAT bad header magic warning 2008-02-14 20:58:05 -08:00
binfmt_misc.c Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
binfmt_script.c Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
binfmt_som.c aout: remove unnecessary inclusions of {asm, linux}/a.out.h 2008-02-08 09:22:30 -08:00
bio.c Revert "unexport bio_{,un}map_user" 2008-03-17 21:14:40 +01:00
block_dev.c fs/block_dev.c: remove #if 0'ed code 2008-02-19 10:04:00 +01:00
buffer.c vfs: fix data leak in nobh_write_end() 2008-03-28 14:45:21 -07:00
char_dev.c fs/char_dev.c: chrdev_open marked static and removed from fs.h 2008-02-08 09:22:42 -08:00
compat.c Merge branch 'linus_origin' into hotfixes 2008-02-15 13:36:30 -05:00
compat_binfmt_elf.c x86: compat_binfmt_elf 2008-01-30 13:31:46 +01:00
compat_ioctl.c d_path: Make d_path() use a struct path 2008-02-14 21:17:09 -08:00
dcache.c dentries: Extract common code to remove dentry from lru 2008-02-14 21:17:09 -08:00
dcookies.c d_path: Make d_path() use a struct path 2008-02-14 21:17:09 -08:00
direct-io.c Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user 2008-02-05 09:44:13 -08:00
dnotify.c
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dquot.c quota: add possibly missing iput() when quotaon and quotaoff races 2008-03-19 18:53:35 -07:00
drop_caches.c
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eventfd.c fs/eventfd.c should #include <linux/syscalls.h> 2008-02-06 10:41:03 -08:00
eventpoll.c lockdep: annotate epoll 2008-02-05 09:44:07 -08:00
exec.c Allow ARG_MAX execve string space even with a small stack limit 2008-03-03 10:12:14 -08:00
fcntl.c fs: remove fastcall, it is always empty 2008-02-08 09:22:31 -08:00
fifo.c
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file.c get rid of NR_OPEN and introduce a sysctl_nr_open 2008-02-06 10:41:06 -08:00
file_table.c [PATCH] fix up new filp allocators 2008-03-19 06:54:05 -04:00
filesystems.c
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fs-writeback.c fs: fix kernel-doc notation warnings 2008-03-19 18:53:36 -07:00
generic_acl.c
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inode.c iget: remove iget() and the read_inode() super op as being obsolete 2008-02-07 08:42:29 -08:00
inotify.c inotify: remove debug code 2008-02-06 10:41:07 -08:00
inotify_user.c Introduce path_put() 2008-02-14 21:13:33 -08:00
internal.h
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ioctl.c fix up kerneldoc in fs/ioctl.c a little bit 2008-02-09 11:08:33 -08:00
ioprio.c cfq-iosched: relax IOPRIO_CLASS_IDLE restrictions 2008-01-28 11:38:15 +01:00
libfs.c Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user 2008-02-05 09:44:13 -08:00
locks.c fs: fix kernel-doc notation warnings 2008-03-19 18:53:36 -07:00
mbcache.c fs: Fix to correct the mbcache entries counter 2007-10-25 15:18:29 -07:00
mpage.c docbook: fix filesystems.tmpl source files 2008-03-03 10:47:13 -08:00
namei.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2008-03-25 08:57:47 -07:00
namespace.c [PATCH] mnt_expire is protected by namespace_sem, no need for vfsmount_lock 2008-03-27 20:48:04 -04:00
nfsctl.c Introduce path_put() 2008-02-14 21:13:33 -08:00
no-block.c
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open.c [PATCH] check for null vfsmount in dentry_open() 2008-03-19 06:50:44 -04:00
pipe.c [PATCH] fix up new filp allocators 2008-03-19 06:54:05 -04:00
pnode.c [PATCH] count ghost references to vfsmounts 2008-03-27 20:47:46 -04:00
pnode.h [PATCH] new helpers - collect_mounts() and release_collected_mounts() 2007-10-21 02:37:25 -04:00
posix_acl.c
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quota.c Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
quota_v1.c
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quota_v2.c
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read_write.c remove the unused exports of sys_open/sys_read 2008-02-08 09:22:36 -08:00
read_write.h
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readdir.c Use mutex_lock_killable in vfs_readdir 2007-12-06 17:39:54 -05:00
select.c make sys_poll() wait at least timeout ms 2008-02-06 10:41:09 -08:00
seq_file.c d_path: Make d_path() use a struct path 2008-02-14 21:17:09 -08:00
signalfd.c fs/signalfd.c should #include <linux/syscalls.h> 2008-02-06 10:41:03 -08:00
splice.c splice: only return -EAGAIN if there's hope of more data 2008-03-04 11:14:39 +01:00
stack.c
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stat.c Introduce path_put() 2008-02-14 21:13:33 -08:00
super.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2008-03-25 08:57:47 -07:00
sync.c
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timerfd.c timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
utimes.c Introduce path_put() 2008-02-14 21:13:33 -08:00
xattr.c Introduce path_put() 2008-02-14 21:13:33 -08:00
xattr_acl.c
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