Tao Ma 138211515c ocfs2: Optimize inode allocation by remembering last group ... In ocfs2, the inode block search looks for the "emptiest" inode group to allocate from. So if an inode alloc file has many equally (or almost equally) empty groups, new inodes will tend to get spread out amongst them, which in turn can put them all over the disk. This is undesirable because directory operations on conceptually "nearby" inodes force a large number of seeks. So we add ip_last_used_group in core directory inodes which records the last used allocation group. Another field named ip_last_used_slot is also added in case inode stealing happens. When claiming new inode, we passed in directory's inode so that the allocation can use this information. For more details, please see http://oss.oracle.com/osswiki/OCFS2/DesignDocs/InodeAllocationStrategy. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>		2009-04-03 11:39:17 -07:00
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cluster	ocfs2/hb: Expose the list of heartbeating nodes via debugfs	2009-04-03 11:39:14 -07:00
dlm	ocfs2/dlm: Make dlm_assert_master_handler() kill itself instead of the asserter	2009-02-26 11:51:11 -08:00
acl.c	New helper - current_umask()	2009-03-31 23:00:26 -04:00
acl.h	ocfs2: add ocfs2_init_acl in mknod	2009-01-05 08:34:20 -08:00
alloc.c	ocfs2: Add a name indexed b-tree to directory inodes	2009-04-03 11:39:15 -07:00
alloc.h	ocfs2: Add a name indexed b-tree to directory inodes	2009-04-03 11:39:15 -07:00
aops.c	ocfs2: tweak to get the maximum inline data size with xattr	2009-03-12 16:45:46 -07:00
aops.h
blockcheck.c	ocfs2: One more hamming code optimization.	2009-01-05 08:40:35 -08:00
blockcheck.h	ocfs2: Add the underlying blockcheck code.	2009-01-05 08:40:31 -08:00
buffer_head_io.c	ocfs2: Use BH_JBDPrivateStart instead of BH_Unshadow	2009-01-05 08:40:24 -08:00
buffer_head_io.h	ocfs2: Validate metadata only when it's read from disk.	2009-01-05 08:36:53 -08:00
dcache.c	constify dentry_operations: OCFS2	2009-03-27 14:44:02 -04:00
dcache.h	constify dentry_operations: OCFS2	2009-03-27 14:44:02 -04:00
dir.c	ocfs2: fix leaf start calculation in ocfs2_dx_dir_rebalance()	2009-04-03 11:39:17 -07:00
dir.h	ocfs2: Introduce dir free space list	2009-04-03 11:39:16 -07:00
dlmglue.c	ocfs2: Cleanup the lockname print in dlmglue.c	2009-02-26 11:51:09 -08:00
dlmglue.h	ocfs2: Implementation of local and global quota file handling	2009-01-05 08:40:23 -08:00
export.c
export.h
extent_map.c	ocfs2: Wrap virtual block reads in ocfs2_read_virt_blocks()	2009-01-05 08:36:54 -08:00
extent_map.h	ocfs2: Wrap virtual block reads in ocfs2_read_virt_blocks()	2009-01-05 08:36:54 -08:00
file.c	remove lots of double-semicolons	2009-01-08 08:31:14 -08:00
file.h	ocfs2: Implementation of local and global quota file handling	2009-01-05 08:40:23 -08:00
heartbeat.c
heartbeat.h
inode.c	ocfs2: Optimize inode allocation by remembering last group	2009-04-03 11:39:17 -07:00
inode.h	ocfs2: Optimize inode allocation by remembering last group	2009-04-03 11:39:17 -07:00
ioctl.c
ioctl.h
journal.c	ocfs2: Add a name indexed b-tree to directory inodes	2009-04-03 11:39:15 -07:00
journal.h	ocfs2: Introduce dir free space list	2009-04-03 11:39:16 -07:00
Kconfig	fs/Kconfig: move ocfs2 out	2009-01-22 13:15:54 +03:00
localalloc.c	ocfs2: Remove debugfs file local_alloc_stats	2009-04-03 11:39:15 -07:00
localalloc.h
locks.c
locks.h
Makefile	ocfs2: Add the underlying blockcheck code.	2009-01-05 08:40:31 -08:00
mmap.c	mm: page_mkwrite change prototype to match fault	2009-04-01 08:59:14 -07:00
mmap.h
namei.c	ocfs2: Optimize inode allocation by remembering last group	2009-04-03 11:39:17 -07:00
namei.h
ocfs1_fs_compat.h
ocfs2_fs.h	ocfs2: Enable indexed directories	2009-04-03 11:39:16 -07:00
ocfs2_lockid.h	ocfs2: Implementation of local and global quota file handling	2009-01-05 08:40:23 -08:00
ocfs2_lockingver.h
ocfs2.h	ocfs2: fix leaf start calculation in ocfs2_dx_dir_rebalance()	2009-04-03 11:39:17 -07:00
quota_global.c	ocfs2: Fix possible deadlock in ocfs2_write_dquot()	2009-02-02 14:20:17 -08:00
quota_local.c	ocfs2: Use metadata-specific ocfs2_journal_access_*() functions.	2009-01-05 08:40:32 -08:00
quota.h	ocfs2: Fix ocfs2_read_quota_block() error handling.	2009-01-05 08:40:24 -08:00
resize.c	ocfs2: Use metadata-specific ocfs2_journal_access_*() functions.	2009-01-05 08:40:32 -08:00
resize.h
slot_map.c	ocfs2: Validate metadata only when it's read from disk.	2009-01-05 08:36:53 -08:00
slot_map.h
stack_o2cb.c
stack_user.c
stackglue.c
stackglue.h
suballoc.c	ocfs2: Optimize inode allocation by remembering last group	2009-04-03 11:39:17 -07:00
suballoc.h	ocfs2: Optimize inode allocation by remembering last group	2009-04-03 11:39:17 -07:00
super.c	ocfs2: Add a name indexed b-tree to directory inodes	2009-04-03 11:39:15 -07:00
super.h
symlink.c	ocfs2: Wrap inode block reads in a dedicated function.	2009-01-05 08:36:52 -08:00
symlink.h
sysfile.c
sysfile.h
uptodate.c
uptodate.h
ver.c
ver.h
xattr.c	ocfs2: Add a name indexed b-tree to directory inodes	2009-04-03 11:39:15 -07:00
xattr.h	ocfs2: Add a name indexed b-tree to directory inodes	2009-04-03 11:39:15 -07:00