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linux/fs/ocfs2
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Mark Fasheh d02f00cc05 ocfs2: allocation reservations 
This patch improves Ocfs2 allocation policy by allowing an inode to
reserve a portion of the local alloc bitmap for itself. The reserved
portion (allocation window) is advisory in that other allocation
windows might steal it if the local alloc bitmap becomes
full. Otherwise, the reservations are honored and guaranteed to be
free. When the local alloc window is moved to a different portion of
the bitmap, existing reservations are discarded.

Reservation windows are represented internally by a red-black
tree. Within that tree, each node represents the reservation window of
one inode. An LRU of active reservations is also maintained. When new
data is written, we allocate it from the inodes window. When all bits
in a window are exhausted, we allocate a new one as close to the
previous one as possible. Should we not find free space, an existing
reservation is pulled off the LRU and cannibalized.

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
 		2010-05-05 18:17:30 -07:00
..
cluster ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
dlm dlm: allow dlm do recovery during shutdown 2010-02-26 15:41:19 -08:00
dlmfs ocfs2/userdlm: Add tracing in userdlm 2010-02-27 19:57:07 -08:00
Kconfig ocfs2: Always include ACL support 2009-10-28 23:05:57 -07:00
Makefile ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
acl.c ocfs2: set i_mode on disk during acl operations 2010-03-17 12:28:22 -07:00
acl.h ocfs2: Always include ACL support 2009-10-28 23:05:57 -07:00
alloc.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
alloc.h ocfs2: Find proper end cpos for a leaf refcount block. 2009-12-02 16:14:57 -08:00
aops.c Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 2010-03-05 13:20:53 -08:00
aops.h ocfs2: Add CoW support. 2009-09-22 20:09:36 -07:00
blockcheck.c tree-wide: fix typos "offest" -> "offset" 2009-12-04 15:39:50 +01:00
blockcheck.h ocfs2: Add statistics for the checksum and ecc operations. 2009-06-03 19:15:36 -07:00
buffer_head_io.c ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
buffer_head_io.h ocfs2: Take the inode out of the metadata read/write paths. 2009-09-04 16:07:48 -07:00
dcache.c ocfs2: invalidate dentry if its dentry_lock isn't initialized. 2009-08-27 18:10:54 -07:00
dcache.h ocfs2: Fix deadlock on umount 2009-07-21 15:47:55 -07:00
dir.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
dir.h ocfs2: Introduce dir free space list 2009-04-03 11:39:16 -07:00
dlmglue.c Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
dlmglue.h ocfs2: Add new refcount tree lock resource in dlmglue. 2009-09-22 20:09:28 -07:00
export.c ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
export.h exportfs: make struct export_operations const 2007-10-22 08:13:21 -07:00
extent_map.c Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
extent_map.h ocfs2: Return extent flags for xattr value tree. 2009-09-22 20:09:39 -07:00
file.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
file.h ocfs2: Integrate CoW in file write. 2009-09-22 20:09:37 -07:00
heartbeat.c ocfs2: Move o2hb functionality into the stack glue. 2008-04-18 08:56:04 -07:00
heartbeat.h ocfs2: Move o2hb functionality into the stack glue. 2008-04-18 08:56:04 -07:00
inode.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
inode.h ocfs2: Drop struct inode from ocfs2_extent_tree_operations. 2009-09-04 16:07:57 -07:00
ioctl.c ocfs2: Use compat_ptr in reflink_arguments. 2010-02-02 18:56:37 -08:00
ioctl.h Ocfs2: Move ocfs2 ioctl definitions from ocfs2_fs.h to newly added ocfs2_ioctl.h 2010-03-02 14:10:20 -08:00
journal.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
journal.h ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
localalloc.c ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
localalloc.h ocfs2: throttle back local alloc when low on disk space 2008-10-13 13:57:57 -07:00
locks.c [PATCH] Skip check for mandatory locks when unlocking 2010-03-17 12:07:16 -07:00
locks.h ocfs2: POSIX file locks support 2008-10-13 13:57:57 -07:00
mmap.c const: mark struct vm_struct_operations 2009-09-27 11:39:25 -07:00
mmap.h
…
namei.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
namei.h ocfs2: Create reflinked file in orphan dir. 2009-09-22 20:09:48 -07:00
ocfs1_fs_compat.h fs/: Spelling fixes 2008-02-03 17:33:42 +02:00
ocfs2.h ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
ocfs2_fs.h Ocfs2: Move ocfs2 ioctl definitions from ocfs2_fs.h to newly added ocfs2_ioctl.h 2010-03-02 14:10:20 -08:00
ocfs2_ioctl.h Ocfs2: Move ocfs2 ioctl definitions from ocfs2_fs.h to newly added ocfs2_ioctl.h 2010-03-02 14:10:20 -08:00
ocfs2_lockid.h ocfs2: Add new refcount tree lock resource in dlmglue. 2009-09-22 20:09:28 -07:00
ocfs2_lockingver.h ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
quota.h quota: Move definition of QFMT_OCFS2 to linux/quota.h 2009-12-10 15:02:53 +01:00
quota_global.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
quota_local.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
refcounttree.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
refcounttree.h ocfs2: Add ioctl for reflink. 2009-09-22 20:09:51 -07:00
reservations.c ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
reservations.h ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
resize.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
resize.h [PATCH 2/2] ocfs2: Implement group add for online resize 2008-01-25 15:04:24 -08:00
slot_map.c ocfs2: Take the inode out of the metadata read/write paths. 2009-09-04 16:07:48 -07:00
slot_map.h ocfs2: De-magic the in-memory slot map. 2008-04-18 08:56:03 -07:00
stack_o2cb.c ocfs2: Hang the locking proto on the cluster conn and use it in asts. 2010-02-26 15:41:16 -08:00
stack_user.c ocfs2: Remove the ast pointers from ocfs2_stack_plugins 2010-02-26 15:41:16 -08:00
stackglue.c ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
stackglue.h ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
suballoc.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
suballoc.h ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
super.c ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
super.h ocfs2: use s_maxbytes directly in ocfs2_change_file_space() 2007-08-09 17:25:07 -07:00
symlink.c ocfs2: Fix refcnt leak on ocfs2_fast_follow_link() error path 2010-01-11 15:38:50 -08:00
symlink.h
…
sysfile.c ocfs2/trivial: Wrap ocfs2_sysfile_cluster_lock_key within define. 2009-06-22 14:34:29 -07:00
sysfile.h
…
uptodate.c ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
uptodate.h ocfs2: Pass struct ocfs2_caching_info to the journal functions. 2009-09-04 16:07:50 -07:00
ver.c ocfs2: bump version number 2008-01-25 15:05:46 -08:00
ver.h
…
xattr.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
xattr.h ocfs2: Always include ACL support 2009-10-28 23:05:57 -07:00