summaryrefslogtreecommitdiffstats
path: root/fs/ocfs2/super.c
Commit message (Collapse)AuthorAgeFilesLines
* ocfs2: add extent block stealing for ocfs2 v5Tiger Yang2010-02-261-3/+7
| | | | | | | | | | | This patch add extent block (metadata) stealing mechanism for extent allocation. This mechanism is same as the inode stealing. if no room in slot specific extent_alloc, we will try to allocate extent block from the next slot. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Acked-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* ocfs2/trivial: Remove trailing whitespacesSunil Mushran2010-01-251-1/+1
| | | | | | | Patch removes trailing whitespaces. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2009-12-241-47/+48
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: ocfs2/trivial: Use le16_to_cpu for a disk value in xattr.c ocfs2/trivial: Use proper mask for 2 places in hearbeat.c Ocfs2: Let ocfs2 support fiemap for symlink and fast symlink. Ocfs2: Should ocfs2 support fiemap for S_IFDIR inode? ocfs2: Use FIEMAP_EXTENT_SHARED fiemap: Add new extent flag FIEMAP_EXTENT_SHARED ocfs2: replace u8 by __u8 in ocfs2_fs.h ocfs2: explicit declare uninitialized var in user_cluster_connect() ocfs2-devel: remove redundant OCFS2_MOUNT_POSIX_ACL check in ocfs2_get_acl_nolock() ocfs2: return -EAGAIN instead of EAGAIN in dlm ocfs2/cluster: Make fence method configurable - v2 ocfs2: Set MS_POSIXACL on remount ocfs2: Make acl use the default ocfs2: Always include ACL support
| * ocfs2: Set MS_POSIXACL on remountJan Kara2009-10-281-0/+4
| | | | | | | | | | | | | | | | | | We have to set MS_POSIXACL on remount as well. Otherwise VFS would not know we started supporting ACLs after remount and thus ACLs would not work. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: Make acl use the defaultJan Kara2009-10-281-38/+44
| | | | | | | | | | | | | | | | | | | | | | | | Change acl mount options handling to match the one of XFS and BTRFS and hopefully it is also easier to use now. When admin does not specify any acl mount option, acls are enabled if and only if the filesystem has xattr feature enabled. If admin specifies 'acl' mount option, we fail the mount if the filesystem does not have xattr feature and thus acls cannot be enabled. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: Always include ACL supportJan Kara2009-10-281-9/+0
| | | | | | | | | | | | | | | | | | 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>
* | ocfs2: return f_fsid info in ocfs2_statfs()Coly Li2009-10-291-0/+4
|/ | | | | | | | | | | | | | | | Currently the f_fsid of struct kstatfs returned from ocfs2_statfs() is undefined (vfs layer fills in 0 as default). Since in some conditions, f_fsid value might be used in a (f_fsid, ino) pair to uniquely identify a file, ocfs2 should return a unique defined f_fsid value from ocfs2_statfs(). Because uuid_str is the same on big or litlle endian machine, it's endian consistent to use osb->uuid_str to generate f_fsid value. Signed-off-by: Coly Li <coly.li@suse.de> Cc: Sunil Mushran <sunil.mushran@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* ocfs2: Return -EINVAL when a device is not ocfs2.Joel Becker2009-10-281-7/+9
| | | | | | | | | | In case of non-modular kernels the root filesystem is mounted by trying several filesystems. If ocfs2 was tried before the actual filesystem type, the mount would fail because ocfs2_sb_probe() returns -EAGAIN instead of -EINVAL. ocfs2 will now return -EINVAL properly. Signed-off-by: Joel Becker <joel.becker@oracle.com> Reported-by: Laszlo Attila Toth <panther@balabit.hu>
* const: constify remaining file_operationsAlexey Dobriyan2009-10-011-1/+1
| | | | | | | | [akpm@linux-foundation.org: fix KVM] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* headers: utsname.h reduxAlexey Dobriyan2009-09-231-1/+0
| | | | | | | | | | | | | * remove asm/atomic.h inclusion from linux/utsname.h -- not needed after kref conversion * remove linux/utsname.h inclusion from files which do not need it NOTE: it looks like fs/binfmt_elf.c do not need utsname.h, however due to some personality stuff it _is_ needed -- cowardly leave ELF-related headers and files alone. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2009-09-231-4/+9
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (85 commits) ocfs2: Use buffer IO if we are appending a file. ocfs2: add spinlock protection when dealing with lockres->purge. dlmglue.c: add missed mlog lines ocfs2: __ocfs2_abort() should not enable panic for local mounts ocfs2: Add ioctl for reflink. ocfs2: Enable refcount tree support. ocfs2: Implement ocfs2_reflink. ocfs2: Add preserve to reflink. ocfs2: Create reflinked file in orphan dir. ocfs2: Use proper parameter for some inode operation. ocfs2: Make transaction extend more efficient. ocfs2: Don't merge in 1st refcount ops of reflink. ocfs2: Modify removing xattr process for refcount. ocfs2: Add reflink support for xattr. ocfs2: Create an xattr indexed block if needed. ocfs2: Call refcount tree remove process properly. ocfs2: Attach xattr clusters to refcount tree. ocfs2: Abstract ocfs2 xattr tree extend rec iteration process. ocfs2: Abstract the creation of xattr block. ocfs2: Remove inode from ocfs2_xattr_bucket_get_name_value. ...
| * ocfs2: __ocfs2_abort() should not enable panic for local mountsSunil Mushran2009-09-231-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | In a clustered setup, we have to panic the box on journal abort. This is because we don't have the facility to go hard readonly. With hard ro, another node would detect node failure and initiate recovery. Having said that, we shouldn't force panic if the volume is mounted locally. This patch defers the handling to the mount option, errors. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: Add refcount tree lock mechanism.Tao Ma2009-09-221-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement locking around struct ocfs2_refcount_tree. This protects all read/write operations on refcount trees. ocfs2_refcount_tree has its own lock and its own caching_info, protecting buffers among multiple nodes. User must call ocfs2_lock_refcount_tree before his operation on the tree and unlock it after that. ocfs2_refcount_trees are referenced by the block number of the refcount tree root block, So we create an rb-tree on the ocfs2_super to look them up. Signed-off-by: Tao Ma <tao.ma@oracle.com>
| * ocfs2: move ip_created_trans to struct ocfs2_caching_infoJoel Becker2009-09-041-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Similar ip_last_trans, ip_created_trans tracks the creation of a journal managed inode. This specifically tracks what transaction created the inode. This is so the code can know if the inode has ever been written to disk. This behavior is desirable for any journal managed object. We move it to struct ocfs2_caching_info as ci_created_trans so that any object using ocfs2_caching_info can rely on this behavior. Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: move ip_last_trans to struct ocfs2_caching_infoJoel Becker2009-09-041-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | We have the read side of metadata caching isolated to struct ocfs2_caching_info, now we need the write side. This means the journal functions. The journal only does a couple of things with struct inode. This change moves the ip_last_trans field onto struct ocfs2_caching_info as ci_last_trans. This field tells the journal whether a pending journal flush is required. Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: Take the inode out of the metadata read/write paths.Joel Becker2009-09-041-1/+1
| | | | | | | | | | | | | | | | | | We are really passing the inode into the ocfs2_read/write_blocks() functions to get at the metadata cache. This commit passes the cache directly into the metadata block functions, divorcing them from the inode. Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: Change metadata caching locks to an operations structure.Joel Becker2009-09-041-2/+2
| | | | | | | | | | | | | | | | | | We don't really want to cart around too many new fields on the ocfs2_caching_info structure. So let's wrap all our access of the parent object in a set of operations. One pointer on caching_info, and more flexibility to boot. Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: Make the ocfs2_caching_info structure self-contained.Joel Becker2009-09-041-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | We want to use the ocfs2_caching_info structure in places that are not inodes. To do that, it can no longer rely on referencing the inode directly. This patch moves the flags to ocfs2_caching_info->ci_flags, stores pointers to the parent's locks on the ocfs2_caching_info, and renames the constants and flags to reflect its independant state. Signed-off-by: Joel Becker <joel.becker@oracle.com>
* | const: make struct super_block::s_qcop constAlexey Dobriyan2009-09-221-1/+1
|/ | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: Don't oops in ocfs2_kill_sb on a failed mountJan Kara2009-08-171-1/+5
| | | | | | | | If we fail to mount the filesystem, we have to be careful not to dereference uninitialized structures in ocfs2_kill_sb. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* ocfs2: Fix initialization of blockcheck statsJan Kara2009-07-231-0/+1
| | | | | | | | We just set blockcheck stats to zeros but we should also properly initialize the spinlock there. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* ocfs2: Fix deadlock on umountJan Kara2009-07-211-3/+22
| | | | | | | | | | | | | | | | | | In commit ea455f8ab68338ba69f5d3362b342c115bea8e13, we moved the dentry lock put process into ocfs2_wq. This causes problems during umount because ocfs2_wq can drop references to inodes while they are being invalidated by invalidate_inodes() causing all sorts of nasty things (invalidate_inodes() ending in an infinite loop, "Busy inodes after umount" messages etc.). We fix the problem by stopping ocfs2_wq from doing any further releasing of inode references on the superblock being unmounted, wait until it finishes the current round of releasing and finally cleaning up all the references in dentry_lock_list from ocfs2_put_super(). The issue was tracked down by Tao Ma <tao.ma@oracle.com>. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* ocfs2: Fixup orphan scan cleanup after failed mountJeff Mahoney2009-07-081-1/+3
| | | | | | | | | | | | | | If the mount fails for any reason, ocfs2_dismount_volume calls ocfs2_orphan_scan_stop. It requires that ocfs2_orphan_scan_init be called to setup the mutex and work queues, but that doesn't happen if the mount has failed and we oops accessing an uninitialized work queue. This patch splits the init and startup of the orphan scan, eliminating the oops. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2009-06-231-33/+36
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: ocfs2/trivial: Wrap ocfs2_sysfile_cluster_lock_key within define. ocfs2: Add lockdep annotations vfs: Set special lockdep map for dirs only if not set by fs ocfs2: Disable orphan scanning for local and hard-ro mounts ocfs2: Do not initialize lvb in ocfs2_orphan_scan_lock_res_init() ocfs2: Stop orphan scan as early as possible during umount ocfs2: Fix ocfs2_osb_dump() ocfs2: Pin journal head before accessing jh->b_committed_data ocfs2: Update atime in splice read if necessary. ocfs2: Provide the ocfs2_dlm_lvb_valid() stack API.
| * ocfs2: Disable orphan scanning for local and hard-ro mountsSunil Mushran2009-06-221-17/+15
| | | | | | | | | | | | | | Local and Hard-RO mounts do not need orphan scanning. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: Stop orphan scan as early as possible during umountSunil Mushran2009-06-221-2/+3
| | | | | | | | | | | | | | | | | | | | | | Currently if the orphan scan fires a tick before the user issues the umount, the umount will wait for the queued orphan scan tasks to complete. This patch makes the umount stop the orphan scan as early as possible so as to reduce the probability of the queued tasks slowing down the umount. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: Fix ocfs2_osb_dump()Sunil Mushran2009-06-221-14/+18
| | | | | | | | | | | | | | Skip printing information that is not valid for local mounts. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* | block: rename CONFIG_LBD to CONFIG_LBDAFBartlomiej Zolnierkiewicz2009-06-191-1/+1
|/ | | | | | | | | | | | Follow-up to "block: enable by default support for large devices and files on 32-bit archs". Rename CONFIG_LBD to CONFIG_LBDAF to: - allow update of existing [def]configs for "default y" change - reflect that it is used also for large files support nowadays Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2009-06-161-15/+51
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: ocfs2/net: Use wait_event() in o2net_send_message_vec() ocfs2: Adjust rightmost path in ocfs2_add_branch. ocfs2: fdatasync should skip unimportant metadata writeout ocfs2: Remove redundant gotos in ocfs2_mount_volume() ocfs2: Add statistics for the checksum and ecc operations. ocfs2 patch to track delayed orphan scan timer statistics ocfs2: timer to queue scan of all orphan slots ocfs2: Correct ordering of ip_alloc_sem and localloc locks for directories ocfs2: Fix possible deadlock in quota recovery ocfs2: Fix possible deadlock with quotas in ocfs2_setattr() ocfs2: Fix lock inversion in ocfs2_local_read_info() ocfs2: Fix possible deadlock in ocfs2_global_read_dquot() ocfs2: update comments in masklog.h ocfs2: Don't printk the error when listing too many xattrs.
| * ocfs2: Remove redundant gotos in ocfs2_mount_volume()Tao Ma2009-06-031-6/+1
| | | | | | | | | | Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: Add statistics for the checksum and ecc operations.Joel Becker2009-06-031-9/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | It would be nice to know how often we get checksum failures. Even better, how many of them we can fix with the single bit ecc. So, we add a statistics structure. The structure can be installed into debugfs wherever the user wants. For ocfs2, we'll put it in the superblock-specific debugfs directory and pass it down from our higher-level functions. The stats are only registered with debugfs when the filesystem supports metadata ecc. Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2 patch to track delayed orphan scan timer statisticsSrinivas Eeda2009-06-031-0/+8
| | | | | | | | | | | | | | | | | | | | Patch to track delayed orphan scan timer statistics. Modifies ocfs2_osb_dump to print the following: Orphan Scan=> Local: 10 Global: 21 Last Scan: 67 seconds ago Signed-off-by: Srinivas Eeda <srinivas.eeda@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
| * ocfs2: timer to queue scan of all orphan slotsSrinivas Eeda2009-06-031-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a dentry is unlinked, the unlinking node takes an EX on the dentry lock before moving the dentry to the orphan directory. Other nodes that have this dentry in cache have a PR on the same dentry lock. When the EX is requested, the other nodes flag the corresponding inode as MAYBE_ORPHANED during downconvert. The inode is finally deleted when the last node to iput the inode sees that i_nlink==0 and the MAYBE_ORPHANED flag is set. A problem arises if a node is forced to free dentry locks because of memory pressure. If this happens, the node will no longer get downconvert notifications for the dentries that have been unlinked on another node. If it also happens that node is actively using the corresponding inode and happens to be the one performing the last iput on that inode, it will fail to delete the inode as it will not have the MAYBE_ORPHANED flag set. This patch fixes this shortcoming by introducing a periodic scan of the orphan directories to delete such inodes. Care has been taken to distribute the workload across the cluster so that no one node has to perform the task all the time. Signed-off-by: Srinivas Eeda <srinivas.eeda@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* | Push BKL down into ->remount_fs()Alessio Igor Bogani2009-06-111-0/+4
| | | | | | | | | | | | | | [xfs, btrfs, capifs, shmem don't need BKL, exempt] Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | push BKL down into ->put_superChristoph Hellwig2009-06-111-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move BKL into ->put_super from the only caller. A couple of filesystems had trivial enough ->put_super (only kfree and NULLing of s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs, hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most of them probably don't need it, but I'd rather sort that out individually. Preferably after all the other BKL pushdowns in that area. [AV: original used to move lock_super() down as well; these changes are removed since we don't do lock_super() at all in generic_shutdown_super() now] [AV: fuse, btrfs and xfs are known to need no damn BKL, exempt] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | ocfs2: remove ->write_super and stop maintaining ->s_dirtChristoph Hellwig2009-06-111-14/+0
| | | | | | | | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | block: Do away with the notion of hardsect_sizeMartin K. Petersen2009-05-221-1/+1
|/ | | | | | | | | | | | | | Until now we have had a 1:1 mapping between storage device physical block size and the logical block sized used when addressing the device. With SATA 4KB drives coming out that will no longer be the case. The sector size will be 4KB but the logical block size will remain 512-bytes. Hence we need to distinguish between the physical block size and the logical ditto. This patch renames hardsect_size to logical_block_size. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* ocfs2: recover orphans in offline slots during recovery and mountSrinivas Eeda2009-04-031-0/+6
| | | | | | | | | | | | | | | | | During recovery, a node recovers orphans in it's slot and the dead node(s). But if the dead nodes were holding orphans in offline slots, they will be left unrecovered. If the dead node is the last one to die and is holding orphans in other slots and is the first one to mount, then it only recovers it's own slot, which leaves orphans in offline slots. This patch queues complete_recovery to clean orphans for all offline slots during mount and node recovery. Signed-off-by: Srinivas Eeda <srinivas.eeda@oracle.com> Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Add a name indexed b-tree to directory inodesMark Fasheh2009-04-031-0/+6
| | | | | | | | | | | | | | | | This patch makes use of Ocfs2's flexible btree code to add an additional tree to directory inodes. The new tree stores an array of small, fixed-length records in each leaf block. Each record stores a hash value, and pointer to a block in the traditional (unindexed) directory tree where a dirent with the given name hash resides. Lookup exclusively uses this tree to find dirents, thus providing us with constant time name lookups. Some of the hashing code was copied from ext3. Unfortunately, it has lots of unfixed checkpatch errors. I left that as-is so that tracking changes would be easier. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Acked-by: Joel Becker <joel.becker@oracle.com>
* ocfs2: Expose the file system state via debugfsSunil Mushran2009-04-031-0/+176
| | | | | | | | | | This patch creates a per mount debugfs file, fs_state, which exposes information like, cluster stack in use, states of the downconvert, recovery and commit threads, number of journal txns, some allocation stats, list of all slots, etc. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: add IO error check in ocfs2_get_sector()wengang wang2009-02-261-0/+7
| | | | | | | Check for IO error in ocfs2_get_sector(). Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: lock the metaecc process for xattr bucketTao Ma2009-02-261-0/+1
| | | | | | | | | | | For other metadata in ocfs2, metaecc is checked in ocfs2_read_blocks with io_mutex held. While for xattr bucket, it is calculated by the whole buckets. So we have to add a spin_lock to prevent multiple processes calculating metaecc. Signed-off-by: Tao Ma <tao.ma@oracle.com> Tested-by: Tristan Ye <tristan.ye@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Push out dropping of dentry lock to ocfs2_wqJan Kara2009-02-021-0/+3
| | | | | | | | | | Dropping of last reference to dentry lock is a complicated operation involving dropping of reference to inode. This can get complicated and quota code in particular needs to obtain some quota locks which leads to potential deadlock. Thus we defer dropping of inode reference to ocfs2_wq. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Validate superblock with checksum and ecc.Joel Becker2009-01-051-0/+11
| | | | | | | | The superblock is read via a raw call. Validate it after we find it from its signature. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Enable quota accounting on mount, disable on umountJan Kara2009-01-051-0/+222
| | | | | | | | | Enable quota usage tracking on mount and disable it on umount. Also add support for quota on and quota off quotactls and usrquota and grpquota mount options. Add quota features among supported ones. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Periodic quota syncingMark Fasheh2009-01-051-0/+7
| | | | | | | | | This patch creates a work queue for periodic syncing of locally cached quota information to the global quota files. We constantly queue a delayed work item, to get the periodic behavior. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Acked-by: Jan Kara <jack@suse.cz>
* ocfs2: Implementation of local and global quota file handlingJan Kara2009-01-051-2/+36
| | | | | | | | | | | | | | | | | 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>
* ocfs2: Assign feature bits and system inodes to quota feature and quota filesJan Kara2009-01-051-0/+17
| | | | | Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: add mount option and Kconfig option for aclTiger Yang2009-01-051-0/+33
| | | | | | | | This patch adds the Kconfig option "CONFIG_OCFS2_FS_POSIX_ACL" and mount options "acl" to enable acls in Ocfs2. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Don't check for NULL before brelse()Mark Fasheh2008-10-131-2/+1
| | | | | | This is pointless as brelse() already does the check. Signed-off-by: Mark Fasheh
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 01:36:33 +0000