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2011-05-25Ocfs2/move_extents: Add basic framework and source files for extent moving.Tristan Ye
Adding new files move_extents.[c|h] and fill it with nothing but only a context structure. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
2011-03-17fs: change to new flag variablematt mooney
Replace EXTRA_CFLAGS with ccflags-y. And change ntfs-objs to ntfs-y for cleaner conditional inclusion. Signed-off-by: matt mooney <mfm@muteddisk.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-05-06ocfs2: allocation reservationsMark Fasheh
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>
2010-02-26ocfs2_dlmfs: Move to its own directoryJoel Becker
We're going to remove the tie between ocfs2_dlmfs and o2dlm. ocfs2_dlmfs doesn't belong in the fs/ocfs2/dlm directory anymore. Here we move it to fs/ocfs2/dlmfs. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2009-10-29ocfs2: Always include ACL supportJan Kara
To become consistent with filesystems such as XFS or BTRFS, make posix ACLs always available. This also reduces possibility of misconfiguration on admin's side. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2009-09-23ocfs2: Add ocfs2_read_refcount_block.Tao Ma
Signed-off-by: Tao Ma <tao.ma@oracle.com>
2009-01-05ocfs2: Add the underlying blockcheck code.Joel Becker
This is the code that computes crc32 and ecc for ocfs2 metadata blocks. There are high-level functions that check whether the filesystem has the ecc feature, mid-level functions that work on a single block or array of buffer_heads, and the low-level ecc hamming code that can handle multiple buffers like crc32_le(). It's not hooked up to the filesystem yet. Signed-off-by: Joel Becker <joel.becker@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Implementation of local and global quota file handlingJan Kara
For each quota type each node has local quota file. In this file it stores changes users have made to disk usage via this node. Once in a while this information is synced to global file (and thus with other nodes) so that limits enforcement at least aproximately works. Global quota files contain all the information about usage and limits. It's mostly handled by the generic VFS code (which implements a trie of structures inside a quota file). We only have to provide functions to convert structures from on-disk format to in-memory one. We also have to provide wrappers for various quota functions starting transactions and acquiring necessary cluster locks before the actual IO is really started. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: add POSIX ACL APITiger Yang
This patch adds POSIX ACL(access control lists) APIs in ocfs2. We convert struct posix_acl to many ocfs2_acl_entry and regard them as an extended attribute entry. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-10-14ocfs2: Move trusted and user attribute support into xattr.cMark Fasheh
Per Christoph Hellwig's suggestion - don't split these up. It's not like we gained much by having the two tiny files around. Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-10-13ocfs2: Add extended attribute supportTiger Yang
This patch implements storing extended attributes both in inode or a single external block. We only store EA's in-inode when blocksize > 512 or that inode block has free space for it. When an EA's value is larger than 80 bytes, we will store the value via b-tree outside inode or block. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-10-13ocfs2: Add extent tree operation for xattr value btreesTao Ma
Add some thin wrappers around ocfs2_insert_extent() for each of the 3 different btree types, ocfs2_inode_insert_extent(), ocfs2_xattr_value_insert_extent() and ocfs2_xattr_tree_insert_extent(). The last is for the xattr index btree, which will be used in a followup patch. All the old callers in file.c etc will call ocfs2_dinode_insert_extent(), while the other two handle the xattr issue. And the init of extent tree are handled by these functions. When storing xattr value which is too large, we will allocate some clusters for it and here ocfs2_extent_list and ocfs2_extent_rec will also be used. In order to re-use the b-tree operation code, a new parameter named "private" is added into ocfs2_extent_tree and it is used to indicate the root of ocfs2_exent_list. The reason is that we can't deduce the root from the buffer_head now. It may be in an inode, an ocfs2_xattr_block or even worse, in any place in an ocfs2_xattr_bucket. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-04-18ocfs2: Allow selection of cluster plug-ins.Joel Becker
ocfs2 now supports plug-ins for the classic O2CB stack as well as userspace cluster stacks in conjunction with fs/dlm. This allows zero, one, or both of the plug-ins to be selected in Kconfig. For local mounts (non-clustered), neither plug-in is needed. Both plugins can be loaded at one time, the runtime will select the one needed for the cluster systme in use. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-04-18ocfs2: Add kbuild for ocfs2_stack_user.koJoel Becker
Add ocfs2_stack_user.ko to the Makefile so that it builds. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-04-18ocfs2: Break out stackglue into modules.Joel Becker
We define the ocfs2_stack_plugin structure to represent a stack driver. The o2cb stack code is split into stack_o2cb.c. This becomes the ocfs2_stack_o2cb.ko module. The stackglue generic functions are similarly split into the ocfs2_stackglue.ko module. This module now provides an interface to register drivers. The ocfs2_stack_o2cb driver registers itself. As part of this interface, ocfs2_stackglue can load drivers on demand. This is accomplished in ocfs2_cluster_connect(). ocfs2_cluster_disconnect() is now notified when a _hangup() is pending. If a hangup is pending, it will not release the driver module and will let _hangup() do that. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2008-04-18ocfs2: Create ocfs2_stack_operations and split out the o2cb stack.Joel Becker
Define the ocfs2_stack_operations structure. Build o2cb_stack_ops from all of the o2cb-specific stack functions. Change the generic stack glue functions to call the stack_ops instead of the o2cb functions directly. The o2cb functions are moved to stack_o2cb.c. The headers are cleaned up to where only needed headers are included. In this code, stackglue.c and stack_o2cb.c refer to some shared extern variables. When they become modules, that will change. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-04-18ocfs2: Separate out dlm lock functions.Joel Becker
This is the first in a series of patches to isolate ocfs2 from the underlying cluster stack. Here we wrap the dlm locking functions with ocfs2-specific calls. Because ocfs2 always uses the same dlm lock status callbacks, we can eliminate the callbacks from the filesystem visible functions. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-01-25[PATCH 2/2] ocfs2: cluster aware flock()Mark Fasheh
Hook up ocfs2_flock(), using the new flock lock type in dlmglue.c. A new mount option, "localflocks" is added so that users can revert to old functionality as need be. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25[PATCH 1/2] ocfs2: Add group extend for online resizeTao Ma
This patch adds the ability for a userspace program to request an extend of last cluster group on an Ocfs2 file system. The request is made via ioctl, OCFS2_IOC_GROUP_EXTEND. This is derived from EXT3_IOC_GROUP_EXTEND, but is obviously Ocfs2 specific. tunefs.ocfs2 would call this for an online-resize operation if the last cluster group isn't full. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25ocfs2: Remove mount/unmount votesMark Fasheh
The node maps that are set/unset by these votes are no longer relevant, thus we can remove the mount and umount votes. Since those are the last two remaining votes, we can also remove the entire vote infrastructure. The vote thread has been renamed to the downconvert thread, and the small amount of functionality related to managing it has been moved into fs/ocfs2/dlmglue.c. All references to votes have been removed or updated. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-09-20ocfs2: add ext2 attributesHerbert Poetzl
Support immutable, and other attributes. Some renaming and other minor fixes done by myself. Signed-off-by: Herbert Poetzl <herbert@13thfloor.at> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-01-03[PATCH] OCFS2: The Second Oracle Cluster FilesystemMark Fasheh
The OCFS2 file system module. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>