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path: root/fs/ocfs2/ocfs2_fs.h
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2008-07-31[PATCH 1/2] ocfs2: Add counter in struct ocfs2_dinode to track journal replaysSunil Mushran
This patch renames the ij_pad to ij_recovery_generation in struct ocfs2_dinode. This will be used to keep count of journal replays after an unclean shutdown. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-07-14ocfs2: Don't snprintf() without a format.Joel Becker
Some system files are per-slot. Their names include the slot number. ocfs2_sprintf_system_inode_name() uses the system inode definitions to fill in the slot number with snprintf(). For global system files, there is no node number, and the name was printed as a format with no arguments. -Wformat-nonliteral and -Wformat-security don't like this. Instead, use a static "%s" format and the name as the argument. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2008-04-18ocfs2: Add the USERSPACE_STACK incompat bit.Joel Becker
The filesystem gains the USERSPACE_STACK incomat bit and the s_cluster_info field on the superblock. When a userspace stack is in use, the name of the stack is stored on-disk for mount-time verification. The "cluster_stack" option is added to mount(2) processing. The mount process needs to pass the matching stack name. If the passed name and the on-disk name do not match, the mount is failed. When using the classic o2cb stack, the incompat bit is *not* set and no mount option is used other than the usual heartbeat=local. Thus, the filesystem is compatible with older tools. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-04-18ocfs2: New slot map formatJoel Becker
The old slot map had a few limitations: - It was limited to one block, so the maximum slot count was 255. - Each slot was signed 16bits, limiting node numbers to INT16_MAX. - An empty slot was marked by the magic 0xFFFF (-1). The new slot map format provides 32bit node numbers (UINT32_MAX), a separate space to mark a slot in use, and extra room to grow. The slot map is now bounded by i_size, not a block. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-04-18ocfs2: Define the contents of the slot_map file.Joel Becker
The slot map file is merely an array of __le16. Wrap it in a structure for cleaner reference. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-01-25ocfs2: Local alloc window size changeable via mount optionSunil Mushran
Local alloc is a performance optimization in ocfs2 in which a node takes a window of bits from the global bitmap and then uses that for all small local allocations. This window size is fixed to 8MB currently. This patch allows users to specify the window size in MB including disabling it by passing in 0. If the number specified is too large, the fs will use the default value of 8MB. mount -o localalloc=X /dev/sdX /mntpoint Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25[PATCH 2/2] ocfs2: Implement group add for online resizeTao Ma
This patch adds the ability for a userspace program to request that a properly formatted cluster group be added to the main allocation bitmap for an Ocfs2 file system. The request is made via an ioctl, OCFS2_IOC_GROUP_ADD. On a high level, this is similar to ext3, but we use a different ioctl as the structure which has to be passed through is different. During an online resize, tunefs.ocfs2 will format any new cluster groups which must be added to complete the resize, and call OCFS2_IOC_GROUP_ADD on each one. Kernel verifies that the core cluster group information is valid and then does the work of linking it into the global allocation bitmap. Signed-off-by: Tao Ma <tao.ma@oracle.com> 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>
2007-10-12ocfs2: Structure updates for inline dataMark Fasheh
Add the disk, network and memory structures needed to support data in inode. Struct ocfs2_inline_data is defined and embedded in ocfs2_dinode for storing inline data. A new inode field, i_dyn_features, is added to facilitate tracking of dynamic inode state. Since it will be used often, we want to mirror it on ocfs2_inode_info, and transfer it via the meta data lvb. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Reviewed-by: Joel Becker <joel.becker@oracle.com>
2007-10-12ocfs2: Sync ocfs2_fs.h with ocfs2-toolsMark Fasheh
ocfs2-tools added some on-disk fields and flags which are used by tunefs.ocfs2. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-07-10ocfs2: Support xfs style space reservation ioctlsMark Fasheh
We re-use the RESVSP/UNRESVSP ioctls from xfs which allow the user to allocate and deallocate regions to a file without zeroing data or changing i_size. Though renamed, the structure passed in from user is identical to struct xfs_flock64. The three fields that are actually used right now are l_whence, l_start and l_len. This should get ocfs2 immediate compatibility with userspace software using the pre-existing xfs ioctls. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-07-10ocfs2: btree changes for unwritten extentsMark Fasheh
Writes to a region marked as unwritten might result in a record split or merge. We can support splits by making minor changes to the existing insert code. Merges require left rotations which mostly re-use right rotation support functions. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-05-02ocfs2: Implement compat_ioctl()Mark Fasheh
We need this to support 32 bit system calls on 64 bit kernels. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26ocfs2: make room for unwritten extents flagMark Fasheh
Due to the size of our group bitmaps, we'll never have a leaf node extent record with more than 16 bits worth of clusters. Split e_clusters up so that leaf nodes can get a flags field where we can mark unwritten extents. Interior nodes whose length references all the child nodes beneath it can't split their e_clusters field, so we use a union to preserve sizing there. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26ocfs2: sparse b-tree supportMark Fasheh
Introduce tree rotations into the b-tree code. This will allow ocfs2 to support sparse files. Much of the added code is designed to be generic (in the ocfs2 sense) so that it can later be re-used to implement large extended attributes. This patch only adds the rotation code and does minimal updates to callers of the extent api. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26ocfs2: Remove delete inode voteTiger Yang
Ocfs2 currently does cluster-wide node messaging to check the open state of an inode during delete. This patch removes that mechanism in favor of an inode cluster lock which is taken at shared read when an inode is first read and dropped in clear_inode(). This allows a deleting node to test the liveness of an inode by attempting to take an exclusive lock. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-01-26[PATCH] ocfs2: fix thinko in ocfs2_backup_super_blkno()Mark Fasheh
Fix a bug which was introduced when I synced up ocfs2_fs.h with ocfs2-tools. We can't do u64/u32 in kernel. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-21ocfs2: Add backup superblock info to ocfs2_fs.hMark Fasheh
This synchronizes us with recent ocfs2-tools changes. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-07ocfs2: Synchronize feature incompat flags in ocfs2_fs.hMark Fasheh
These got a little bit out of date with ocfs2-tools, make things consistent again. We reserve a flag for sparse allocation code as that's pretty close to testable at this point. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-12-07ocfs2: local mountsSunil Mushran
This allows users to format an ocfs2 file system with a special flag, OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT. When the file system sees this flag, it will not use any cluster services, nor will it require a cluster configuration, thus acting like a 'local' file system. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> 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>
2006-03-01[PATCH] ocfs2: remove pointless max journal size limitMark Fasheh
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>