- 23 9月, 2009 3 次提交
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由 Tao Ma 提交于
Add function ocfs2_mark_extent_refcounted which can mark an extent refcounted. Signed-off-by: NTao Ma <tao.ma@oracle.com>
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由 Tao Ma 提交于
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: NTao Ma <tao.ma@oracle.com>
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由 Tao Ma 提交于
Signed-off-by: NTao Ma <tao.ma@oracle.com>
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- 05 9月, 2009 5 次提交
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由 Joel Becker 提交于
The next step in divorcing metadata I/O management from struct inode is to pass struct ocfs2_caching_info to the journal functions. Thus the journal locks a metadata cache with the cache io_lock function. It also can compare ci_last_trans and ci_created_trans directly. This is a large patch because of all the places we change ocfs2_journal_access..(handle, inode, ...) to ocfs2_journal_access..(handle, INODE_CACHE(inode), ...). Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Joel Becker 提交于
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: NJoel Becker <joel.becker@oracle.com>
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由 Joel Becker 提交于
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: NJoel Becker <joel.becker@oracle.com>
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由 Joel Becker 提交于
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: NJoel Becker <joel.becker@oracle.com>
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由 Joel Becker 提交于
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: NJoel Becker <joel.becker@oracle.com>
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- 22 7月, 2009 1 次提交
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由 Jan Kara 提交于
In commit ea455f8a, 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: NJan Kara <jack@suse.cz> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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- 23 6月, 2009 2 次提交
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由 Jan Kara 提交于
Add lockdep support to OCFS2. The support also covers all of the cluster locks except for open locks, journal locks, and local quotafile locks. These are special because they are acquired for a node, not for a particular process and lockdep cannot deal with such type of locking. Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
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: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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- 04 6月, 2009 3 次提交
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由 Joel Becker 提交于
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: NJoel Becker <joel.becker@oracle.com>
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由 Srinivas Eeda 提交于
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: NSrinivas Eeda <srinivas.eeda@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Srinivas Eeda 提交于
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: NSrinivas Eeda <srinivas.eeda@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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- 04 4月, 2009 8 次提交
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由 Srinivas Eeda 提交于
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: NSrinivas Eeda <srinivas.eeda@oracle.com> Acked-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 wengang wang 提交于
For nfs exporting, ocfs2_get_dentry() returns the dentry for fh. ocfs2_get_dentry() may read from disk when the inode is not in memory, without any cross cluster lock. this leads to the file system loading a stale inode. This patch fixes above problem. Solution is that in case of inode is not in memory, we get the cluster lock(PR) of alloc inode where the inode in question is allocated from (this causes node on which deletion is done sync the alloc inode) before reading out the inode itsself. then we check the bitmap in the group (the inode in question allcated from) to see if the bit is clear. if it's clear then it's stale. if the bit is set, we then check generation as the existing code does. We have to read out the inode in question from disk first to know its alloc slot and allot bit. And if its not stale we read it out using ocfs2_iget(). The second read should then be from cache. And also we have to add a per superblock nfs_sync_lock to cover the lock for alloc inode and that for inode in question. this is because ocfs2_get_dentry() and ocfs2_delete_inode() lock on them in reverse order. nfs_sync_lock is locked in EX mode in ocfs2_get_dentry() and in PR mode in ocfs2_delete_inode(). so that mutliple ocfs2_delete_inode() can run concurrently in normal case. [mfasheh@suse.com: build warning fixes and comment cleanups] Signed-off-by: NWengang Wang <wen.gang.wang@oracle.com> Acked-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Tao Ma 提交于
In ocfs2, the block group search looks for the "emptiest" group to allocate from. So if the allocator has many equally(or almost equally) empty groups, new block group will tend to get spread out amongst them. So we add osb_inode_alloc_group in ocfs2_super to record the last used inode allocation group. For more details, please see http://oss.oracle.com/osswiki/OCFS2/DesignDocs/InodeAllocationStrategy. I have done some basic test and the results are a ten times improvement on some cold-cache stat workloads. Signed-off-by: NTao Ma <tao.ma@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Mark Fasheh 提交于
ocfs2_dx_dir_rebalance() is passed the block offset of a dx leaf which needs rebalancing. Since we rebalance an entire cluster at a time however, this function needs to calculate the beginning of that cluster, in blocks. The calculation was wrong, which would result in a read of non-leaf blocks. Fix the calculation by adding ocfs2_block_to_cluster_start() which is a more straight-forward way of determining this. Reported-by: NTristan Ye <tristan.ye@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Mark Fasheh 提交于
Since we've now got a directory format capable of handling a large number of entries, we can increase the maximum link count supported. This only gets increased if the directory indexing feature is turned on. Signed-off-by: NMark Fasheh <mfasheh@suse.com> Acked-by: NJoel Becker <joel.becker@oracle.com>
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由 Mark Fasheh 提交于
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: NMark Fasheh <mfasheh@suse.com> Acked-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
This patch removes the debugfs file local_alloc_stats as that information is now included in the fs_state debugfs file. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Sunil Mushran 提交于
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: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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- 27 2月, 2009 1 次提交
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由 Tao Ma 提交于
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: NTao Ma <tao.ma@oracle.com> Tested-by: NTristan Ye <tristan.ye@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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- 03 2月, 2009 1 次提交
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由 Jan Kara 提交于
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: NJan Kara <jack@suse.cz> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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- 06 1月, 2009 9 次提交
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由 Mark Fasheh 提交于
Future ocfs2 features metaecc and indexed directories need to store a little bit of data in each dirblock. For compatibility, we place this in a trailer at the end of the dirblock. The trailer plays itself as an empty dirent, so that if the features are turned off, it can be reused without requiring a tunefs scan. This code adds the trailer and validates it when the block is read in. [ Mark is the original author, but I reinserted this code before his dir index work. -- Joel ] Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Joel Becker 提交于
The per-metadata-type ocfs2_journal_access_*() functions hook up jbd2 commit triggers and allow us to compute metadata ecc right before the buffers are written out. This commit provides ecc for inodes, extent blocks, group descriptors, and quota blocks. It is not safe to use extened attributes and metaecc at the same time yet. The ocfs2_extent_tree and ocfs2_path abstractions in alloc.c both hide the type of block at their root. Before, it didn't matter, but now the root block must use the appropriate ocfs2_journal_access_*() function. To keep this abstract, the structures now have a pointer to the matching journal_access function and a wrapper call to call it. A few places use naked ocfs2_write_block() calls instead of adding the blocks to the journal. We make sure to calculate their checksum and ecc before the write. Since we pass around the journal_access functions. Let's typedef them in ocfs2.h. Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Joel Becker 提交于
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: NJoel Becker <joel.becker@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Jan Kara 提交于
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: NJan Kara <jack@suse.cz> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Jan Kara 提交于
Implement functions for recovery after a crash. Functions just read local quota file and sync info to global quota file. Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Joel Becker 提交于
We weren't consistently checking extent blocks after we read them. Most places checked the signature, but none checked h_blkno or h_fs_signature. Create a toplevel ocfs2_read_extent_block() that does the read and the validation. Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Joel Becker 提交于
Random places in the code would check a group descriptor bh to see if it was valid. The previous commit unified descriptor block reads, validating all block reads in the same place. Thus, these checks are no longer necessary. Rather than eliminate them, however, we change them to BUG_ON() checks. This ensures the assumptions remain true. All of the code paths to these checks have been audited to ensure they come from a validated descriptor read. Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Joel Becker 提交于
Random places in the code would check a dinode bh to see if it was valid. Not only did they do different levels of validation, they handled errors in different ways. The previous commit unified inode block reads, validating all block reads in the same place. Thus, these haphazard checks are no longer necessary. Rather than eliminate them, however, we change them to BUG_ON() checks. This ensures the assumptions remain true. All of the code paths to these checks have been audited to ensure they come from a validated inode read. Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Tiger Yang 提交于
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: NTiger Yang <tiger.yang@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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- 02 12月, 2008 1 次提交
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由 Coly Li 提交于
This patch fixes two typos in comments of ocfs2. Signed-off-by: NColy Li <coyli@suse.de> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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- 11 11月, 2008 1 次提交
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由 Joel Becker 提交于
The xattr.c code is currently memcmp()ing naking buffer pointers. Create the OCFS2_IS_VALID_XATTR_BLOCK() macro to match its peers and use that. In addition, failed signature checks were returning -EFAULT, which is completely wrong. Return -EIO. Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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- 14 10月, 2008 5 次提交
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由 Joel Becker 提交于
ocfs2 wants JBD2 for many reasons, not the least of which is that JBD is limiting our maximum filesystem size. It's a pretty trivial change. Most functions are just renamed. The only functional change is moving to Jan's inode-based ordered data mode. It's better, too. Because JBD2 reads and writes JBD journals, this is compatible with any existing filesystem. It can even interact with JBD-based ocfs2 as long as the journal is formated for JBD. We provide a compatibility option so that paranoid people can still use JBD for the time being. This will go away shortly. [ Moved call of ocfs2_begin_ordered_truncate() from ocfs2_delete_inode() to ocfs2_truncate_for_delete(). --Mark ] Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Joel Becker 提交于
Now that ocfs2 limits inode numbers to 32bits, add a mount option to disable the limit. This parallels XFS. 64bit systems can handle the larger inode numbers. [ Added description of inode64 mount option in ocfs2.txt. --Mark ] Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Tiger Yang 提交于
This patch adds the s_incompat flag for extended attribute support. This helps us ensure that older versions of Ocfs2 or ocfs2-tools will not be able to mount a volume with xattr support. Signed-off-by: NTiger Yang <tiger.yang@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Tiger Yang 提交于
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: NTiger Yang <tiger.yang@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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由 Tiger Yang 提交于
Add the structures and helper functions we want for handling inline extended attributes. We also update the inline-data handlers so that they properly function in the event that we have both inline data and inline attributes sharing an inode block. Signed-off-by: NTiger Yang <tiger.yang@oracle.com> Signed-off-by: NMark Fasheh <mfasheh@suse.com>
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